Four-arm-arm multi-track strength training device

Abstract

The utility model discloses a four-force-arm multi-track strength training device which comprises a machine frame. The four adjusting assemblies are located on the same side of the rack and arranged on the periphery of the rack, each adjusting assembly comprises an adjusting base and an output rod, the adjusting bases are rotationally connected to the rack in the horizontal direction, and the output rods are rotationally connected to the adjusting bases in the vertical direction; the four stretching parts are connected with the adjusting assemblies in a one-to-one correspondence mode, each stretching part comprises a pulling block, the pulling blocks are connected to the outer side of the output rod, and the pulling blocks are suitable for being pulled outwards; and the resistance output module is connected to the rack, and the resistance output module is used for outputting load force to the pulling block. Two additional force arms and a flexible multi-angle adjusting mechanism are added, the types of training actions are greatly enriched, the adaptability and expansibility of the equipment are improved, a user can do diversified and personalized exercise according to different muscle groups, operation is easy, convenient and visual, the equipment is suitable for people of various body types and training levels, and the practicability is high. And the fitness experience and the training effect are obviously enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to body-building equipment technical field, especially in four force arm multi track strength trainer. BACKGROUND

[0002] With the improvement of health consciousness and the popularization of body-building culture, strength training has become an indispensable part of many people's daily life. The traditional resistance training device usually adopts two fixed or limited adjustable force arm design. Although this structure can meet the basic strength training needs, the movement track provided by the traditional double force arm resistance training device is relatively fixed, and the types of actions that users can perform are relatively few, which limits the effective exercise of different muscle groups, especially those muscle groups that need to be stimulated at a specific angle or direction to be fully developed. SUMMARY

[0003] The utility model aims at at least solves one of prior art existing technical problems. For this reason, the utility model provides four force arm multi track strength trainer, increases two additional force arms and flexible multi angle adjustment mechanism, greatly enriches training action kind, promotes the adaptability and expansibility of equipment, and user can carry out diversified, individualized exercise for different muscle groups, and operation is simple and direct, is suitable for various body shape and training level people, and significantly enhances the health experience and training effect.

[0004] The four force arm multi track strength trainer according to the utility model embodiment comprises:

[0005] A rack;

[0006] Four adjusting assemblies are located at the same side of the rack and are arranged around the rack respectively, the adjusting assembly comprises an adjusting seat and an output rod, the adjusting seat is rotationally connected to the rack along the horizontal direction, and the output rod is rotationally connected to the adjusting seat along the vertical direction;

[0007] Four stretching components are connected one by one with the adjusting assemblies, the stretching component comprises a pulling block, the pulling block is connected to the outer side of the output rod, and the pulling block is suitable for pulling outward;

[0008] A resistance output module is connected to the rack, and the resistance output module is used for outputting load force to the pulling block.

[0009] The four-arm multi-track strength trainer has the following beneficial effects: the four adjusting assemblies and the corresponding stretching components greatly expand the functionality and flexibility of the traditional strength training equipment, so that the user can perform more diversified and more personalized strength training actions, thereby performing more comprehensive and effective exercise on different muscle groups; each adjusting assembly comprises an adjusting seat rotatable in the horizontal direction and an output rod connected with the adjusting seat in the vertical direction, which allows the user to adjust the angle and position according to the body type, movement preference and muscle parts to be focused on, thereby defining the movement track according to the specific training target and personal comfort, instead of being limited to the fixed or limited adjustable force arm structure; in addition, the design that the pulling block is connected to the outer side of the output rod allows the user to exert pulling force from different angles, simulates multiple natural movement modes, increases the action types during training, improves the authenticity and functionality of the action, and helps to improve the overall body coordination and stability of the user; furthermore, the resistance output module directly acts on the pulling block, ensures that the user can obtain stable and continuous resistance feedback regardless of how the user adjusts the angle of the strength trainer, and is crucial to ensure the training effect, because it ensures that appropriate load stimulation can be maintained even in a non-standard posture, thereby promoting the growth and development of muscles; the strength trainer provides a highly personalized and efficient strength training solution for the user, and compared with the traditional double-arm pulling strength trainer, the strength trainer can better meet the needs of modern people to pursue diversified training experience and support more scientific and reasonable planning of personal fitness programs.

[0010] The four-arm multi-track strength trainer comprises a plurality of horizontal gear holes, and the plurality of horizontal gear holes are arranged at intervals around the rotation axis of the adjusting seat and the rack, so as to adjust the horizontal swing angle of the adjusting seat.

[0011] The four-arm multi-track strength trainer comprises two control assemblies, the two control assemblies are arranged at intervals in the middle of the rack, and the control assemblies are used for adjusting the two adjusting seats on the same side.

[0012] The four-arm multi-track strength trainer comprises a control handle, a connecting rope and two first locking components, the first locking components are movably connected to the rack in the vertical direction and can be inserted and locked with the horizontal gear holes, the control handle, the connecting rope and the first locking components are sequentially connected, and the control handle is rotatable in different directions to respectively unlock the two adjusting seats.

[0013] The four-arm multi-track strength trainer according to some embodiments of the present application, the first locking component comprises a first compression spring and a locking column, the first compression spring is connected and drives the locking column to be inserted into the transverse gear hole.

[0014] The four-arm multi-track strength trainer according to some embodiments of the present application, when the control handle is horizontally arranged, the connecting rope is in a straightened state, and the two adjusting seats are driven to be in a locked state.

[0015] The four-arm multi-track strength trainer according to some embodiments of the present application, the adjusting seat is provided with a plurality of vertical gear grooves, and the plurality of vertical gear grooves are arranged at intervals around the rotation axis of the output rod and the adjusting seat, so as to adjust the vertical inclination angle of the output rod.

[0016] The four-arm multi-track strength trainer according to some embodiments of the present application, the adjusting assembly further comprises a connecting seat, the connecting seat is rotatably installed on the adjusting seat, the output rod is fixed on the connecting seat, the connecting seat is connected with a second locking component, the second locking component is slidably arranged on the connecting seat and can be inserted into the vertical gear groove to lock the connecting seat; the outer wall of the output rod is slidably connected with a control sleeve, the control sleeve is connected with the second locking component and is used for unlocking the connecting seat.

[0017] The four-arm multi-track strength trainer according to some embodiments of the present application, the second locking component comprises a second compression spring and a locking block, the second compression spring is connected and drives the locking block to be inserted into the vertical gear groove.

[0018] The four-arm multi-track strength trainer according to some embodiments of the present application, the output rod is suitable for rotating inward to be accommodated in the rack.

[0019] Additional aspects and advantages of the present application will be given in part in the following description, some will become apparent from the following description, or will be understood by those skilled in the art through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 The explosion of the four-arm multi-track strength trainer of the present application Figure 1 ;

[0022] Figure 2 The partial sectional view of the adjusting assembly of the four-arm multi-track strength trainer of the present application Figure 1 ;

[0023] Figure 3 Partial explosion of the adjusting assembly of the four-force-arm multi-track strength training device of the utility model embodiment four Figure 1 ;

[0024] Figure 4 Explosion of the four-force-arm multi-track strength training device of the utility model embodiment four Figure 2 ;

[0025] Figure 5 Partial sectional view of the adjusting assembly of the four-force-arm multi-track strength training device of the utility model embodiment four Figure 2 ;

[0026] Figure 6 Partial explosion of the adjusting assembly of the four-force-arm multi-track strength training device of the utility model embodiment four Figure 2 ;

[0027] Figure 7 Overall structural schematic view of the four-force-arm multi-track strength training device of the utility model embodiment four;

[0028] Figure 8 Internal structural schematic view of the four-force-arm multi-track strength training device of the utility model embodiment four;

[0029] Figure 9 Structural schematic view of the resistance output module of the four-force-arm multi-track strength training device of the utility model embodiment four;

[0030] Figure 10 Connecting structure explosion view of the driven sprocket of the four-force-arm multi-track strength training device of the utility model embodiment four;

[0031] Figure 11 Connecting structure explosion view of the driven sprocket of the four-force-arm multi-track strength training device of the utility model embodiment four;

[0032] Explanation of the reference numerals:

[0033] Frame 100;Fixed sleeve 110;First mounting seat 120;First guide wheel 121;Driven sprocket 122;Adjusting sleeve rod 123;Second mounting seat 130;Second guide wheel 131;Third mounting seat 140;Third guide wheel 141;

[0034] Adjusting assembly 200;Adjusting seat 210;Transverse gear hole 2101;Vertical gear slot 2102;Output rod 220;Control sleeve 221;Connecting seat 230;Second locking component 240;Second compression spring 241;Locking block 242;

[0035] Stretching component 300;Pulling block 310;

[0036] Resistance output module 400; Load motor 410; Drive sprocket 411; Transmission chain 420; Fixed pin shaft 421; Connection block 430; Fixed sheet 431; Dynamic pulley 440; Steel wire rope 450;

[0037] Control assembly 500; Control handle 510; Rotation block 520; Connection rope 530; First locking component 540; First compression spring 541; Locking column 542. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0039] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0040] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0041] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0042] In the description of the present application, the description of the reference terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] With the rise of health awareness and the popularity of fitness culture, strength training has become an integral part of many people's daily lives. Traditional resistance training devices usually adopt a two-fixed or limited adjustable force arm design. Although this structure can meet the basic strength training needs, the movement trajectory provided by the traditional double force arm resistance training device is relatively fixed, and the types of movements that users can perform are relatively limited, which limits the effective exercise of different muscle groups, especially those muscle groups that need specific angle or direction stimulation for full development.

[0044] Therefore, as Figures 1 to 6The utility model provides a four-force arm multi-track strength trainer, including frame 100, adjusting assembly 200, stretching part 300 and resistance output module 400, wherein, adjusting assembly 200 has four, four adjusting assemblies 200 are located the same side of frame 100 and arrange respectively in the four around frame 100, correspondingly, stretching part 300 has four and is connected with adjusting assembly 200 one to one, and resistance output module 400 is connected in frame 100 and is used to output load force to stretching part 300. Specifically, adjusting assembly 200 includes adjusting seat 210 and output rod 220, adjusting seat 210 is connected in frame 100 along the horizontal direction rotation, and output rod 220 is connected in adjusting seat 210 along the vertical direction rotation. Stretching part 300 includes pull block 310, and pull block 310 is connected to the outside of output rod 220, and pull block 310 is suitable for pulling outward, and correspondingly, resistance output module 400 is used to output load force to pull block 310. It needs to be explained that through four adjusting assemblies 200 and corresponding stretching part 300, the functionality and flexibility of traditional strength training equipment are greatly expanded, so that the user can perform more diversified and more personalized strength training actions, so that different muscle groups are more comprehensive and effective exercise. Among them, since every adjusting assembly 200 includes an adjusting seat 210 that can rotate in the horizontal direction, and an output rod 220 connected to the adjusting seat 210 in the vertical direction, this allows users to adjust the angle and position according to their body type, movement preferences, and muscle parts they want to focus on, so they are no longer limited to traditional fixed or limited adjustable force arm structures, but can customize the movement trajectory according to specific training goals and personal comfort; secondly, the design of pull block 310 connected to the outside of output rod 220 allows users to apply pulling force from different angles, simulating a variety of natural movement patterns, not only increasing the types of actions during training, but also improving the realism and functionality of the actions, helping to improve the overall body coordination and stability of the user; in addition, the resistance output module 400 directly acts on the pull block 310, ensuring that no matter how the user adjusts the angle of the trainer, stable and continuous resistance feedback can be obtained, which is crucial to ensuring training effectiveness, as it ensures that even in non-standard poses, appropriate load stimulation can be maintained, thereby promoting muscle growth and development; the overall provides a highly personalized and efficient strength training solution for users, compared to traditional double-force arm pull training devices, this strength training device can better meet the needs of modern people pursuing diversified training experiences, and support more scientific and reasonable planning of individual fitness programs.

[0045] Referring again to Figures 2 to 4In some embodiments of the present utility model, the adjusting seat 210 is provided with multiple lateral gear holes 2101, which are arranged around the rotation axis of the adjusting seat 210 and the rack 100 to adjust the horizontal swing angle of the adjusting seat 210. Users can change the swing angle of the output rod 220 by rotating the adjusting seat 210, allowing them to accurately adjust the position and angle of the force arm according to specific training needs and physical conditions, thereby achieving the best exercise effect. By selecting the appropriate lateral gear hole 2101, users can easily fix the adjusting seat 210 at the desired angle, ensuring that the position of the force arm during training meets the optimal exercise angle of the specific muscle group. This multi-gear design not only increases the diversity of training, but also improves the adaptability of the equipment. For users of different body types and training goals, the ability to flexibly adjust the horizontal position of the force arm means they can more effectively target specific muscle groups for training. For example, when performing stretching exercises for the pectoral or latissimus dorsi muscles, users can better stimulate the target muscles by adjusting the horizontal angle of the force arm, improving the effectiveness of the training. In addition, this adjustability also allows users to try a variety of novel movement combinations, further enriching their training experience. At the same time, the design of the lateral gear hole 2101 simplifies the adjustment process, and users only need to lock the adjusting seat 210 in the appropriate lateral gear hole 2101 to complete the setting, without the need for complex tools or steps. This not only improves the convenience of operation, but also reduces the safety hazards caused by improper adjustment, ensuring the stability and safety of the training process. Referring again to Figure 4The frame 100 is connected to two control components 500, which are spaced apart in the middle of the frame 100. The control components 500 are used to adjust two adjustment seats 210 located on the same side, greatly simplifying the user's operation process for adjusting the lever arm position during training and improving the ease of use and user experience. By setting up two control components 500, the user can simultaneously or independently control the two adjustment seats 210 on each side, thereby achieving overall or partial adjustment of the four lever arms. Each control component 500 is connected to two corresponding adjustment seats 210, realizing the function of controlling two adjustment components 200 with a single component. This eliminates the need for users to adjust each adjustment component 200 separately in different positions; instead, they can control one or both adjustment components 200 individually or simultaneously by pulling or pushing a single control handle 510, greatly simplifying the operation steps and improving adjustment efficiency. This is especially important for users who need to frequently change training movements or want to target different muscle groups in the same training session. For example, during a workout, a user might want to perform chest presses first and then quickly switch to shoulder presses. This switch can be easily achieved using the control assembly 500 without leaving the machine or performing complex resets. Furthermore, the control assembly 500 includes a control handle 510, a connecting cable 530, and two first locking components 540. The first locking components 540 are vertically movably connected to the frame 100 and can be engaged and locked with the lateral stop holes 2101. The control handle 510, connecting cable 530, and first locking components 540 are sequentially connected. Rotating the control handle 510 in opposite directions unlocks the two adjustment seats 210 respectively. Thus, the sequential connection of the control handle 510, connecting cable 530, and first locking components 540 forms a linkage system, allowing the user to unlock and lock the adjustment seats 210 by rotating or pulling the control handle 510. It should be noted that because the 510 control handle can be operated using the entire palm, rather than just the fingertips, this not only increases the contact area during operation but also reduces finger pressure, making it particularly user-friendly for users with less hand strength or limited dexterity. Overall, this simple and efficient unlocking mechanism not only improves user convenience and comfort but also reduces the complexity of device maintenance, providing users with a safer, more reliable, and easier-to-operate solution. Furthermore, refer to... Figure 3 and Figure 4The first locking component 540 includes a first compression spring 541 and a locking pin 542. The first compression spring 541 connects to and drives the locking pin 542 to insert into the transverse stop hole 2101. The first compression spring 541 provides sufficient elasticity to ensure that the locking pin 542 can be securely inserted into the transverse stop hole 2101, guaranteeing the stability and safety of the adjusting seat 210 during use. This design not only prevents safety hazards caused by accidental movement of the adjusting seat 210 during training but also ensures the consistency and accuracy of training movements. Furthermore, the frame 100 is fixedly connected to a fixing sleeve 110. The locking pin 542 is slidably disposed within the fixing sleeve 110 in the vertical direction. The first compression spring 541 is sleeved on the locking pin 542, with one end of the first compression spring 541 abutting against the fixing sleeve 110 and the other end pressing against the locking pin 542. It is easy to understand that by placing the locking pin 542 within the fixing sleeve 110 and allowing it to slide vertically, the smoothness and accuracy of the locking pin 542 when inserting and withdrawing from the transverse stop hole 2101 are ensured. The fixing sleeve 110 provides a guiding function, preventing the locking pin 542 from shifting or tilting during movement, thus ensuring that each locking and unlocking operation is performed accurately. This design not only improves the reliability and stability of the equipment but also extends the service life of the locking pin 542 and reduces the risk of failure due to wear or deformation. Secondly, the design of the first compression spring 541 being sleeved on the locking post 542, with one end abutting against the fixed sleeve 110 and the other end pressing against the locking post 542, provides an effective pre-tightening mechanism. This pre-tightening force ensures that the locking post 542 is always pushed towards the transverse stop hole 2101 in its natural state, ensuring that even under external impact or vibration, the locking post 542 remains in the transverse stop hole 2101, preventing accidental dislodgement. This not only enhances the safety of the equipment but also increases user confidence, especially during high-intensity training, allowing users to perform various movements with greater peace of mind without worrying about the lever arm suddenly loosening or shifting. Furthermore, the presence of the first compression spring 541 also provides a certain degree of buffering and shock absorption. When the locking post 542 is subjected to external impact or the lever arm is subjected to a large load, the first compression spring 541 can absorb some energy, reducing the direct impact on mechanical components, thereby protecting the locking post 542 and the transverse stop hole 2101 from damage. This buffering effect not only extends the overall lifespan of the equipment but also reduces maintenance costs and frequency, enabling the equipment to operate stably for a long period.

[0046] In some embodiments, the control handle is directly fixed to the connecting rope, and the control handle moves vertically to directly pull up or down the connecting rope (not shown in the figure). See also... Figure 4In some embodiments of this utility model, the control handle 510 is rotatably connected to the frame 100, and a rotating block 520 is fixedly connected to the control handle 510. One end of the connecting rope 530, away from the locking pin 542, is connected to the rotating block 520. Firstly, by setting the control handle 510 to a rotatable connection, users can perform push-pull actions more naturally during operation, reducing the inconvenience and discomfort that might result from directly pulling the connecting rope 530. Furthermore, the rotatable connection design allows the control handle 510 to rotate smoothly, thus conforming more to ergonomic principles and improving the user's operating experience. Secondly, the fixed connection between the control handle 510 and the rotating block 520 ensures that during operation, force can be effectively transmitted to the connecting rope 530, thereby driving the locking pin 542 to unlock the adjusting seat 210. This mechanical linkage design not only improves the efficiency of force transmission but also enhances the reliability and stability of the entire unlocking system.

[0047] Refer to Figure 4 In some applications, when the control handle 510 is horizontally positioned, the connecting rope 530 is taut, driving both adjustment seats 210 into a locked state. This means that in its natural state, the two locking pins 542 are pushed into the transverse stop holes 2101 by the first compression spring 541, ensuring that the two adjustment seats 210 are securely locked in their current positions. This ensures the fitness equipment remains stable and safe when not in use, avoiding safety hazards caused by accidental movement of the lever arm. This is especially important for users, particularly during high-intensity training, as a stable device provides more reliable support and prevents any potential injury. Furthermore, by setting the control handle 510 horizontally, users can visually see and feel that the equipment is locked when not in use, which not only enhances user confidence but also reduces the possibility of misoperation. Users can easily visually check whether the equipment is fully locked, thus improving safety. In addition, this design simplifies the user's operation. When the lever arm position needs to be adjusted, the user simply rotates the control handle 510 to deviate from the horizontal position to easily unlock the adjustment seats 210. Once the adjustment is complete and the control handle 510 is released, it will automatically return to the horizontal position, the connecting rope 530 will straighten again, and the adjustment seat 210 will lock again. This self-locking mechanism is not only convenient and quick, but also ensures that the equipment can quickly return to the safe locked state after each adjustment.

[0048] Furthermore, refer to Figure 4The rotating block 520 is provided with a through hole for the connecting rope 530 to pass through. The center line of the through hole is offset from the rotation axis of the rotating block 520. Therefore, when the user rotates the operating handle 510, it will unlock the upper or lower adjustment seat 210. For example, rotating the operating handle 510 upwards unlocks the lower adjustment seat 210; rotating the operating handle 510 downwards unlocks the upper adjustment seat 210. Similarly, rotating the operating handle 510 upwards unlocks the upper adjustment seat 210; rotating the operating handle 510 downwards unlocks the lower adjustment seat 210. It is easy to understand that by providing a through hole in the rotating block 520, the connecting rope 530 can smoothly pass through and twist and contract under the rotation of the rotating block 520, thereby ensuring effective force transmission. This design not only simplifies the installation and maintenance process of the connecting rope 530 but also improves the stability and reliability of the entire unlocking system. The fixed position of the connecting rope 530 in the through hole effectively prevents it from slipping or loosening during operation, ensuring accurate operation every time. Secondly, offsetting the center line of the through hole from the rotation axis of the rotating block 520 creates a lever effect when the control handle 510 rotates, allowing the user to achieve a larger unlocking action with less force. This makes pulling or pushing the control handle 510 less strenuous, especially beneficial for users with limited hand strength or joint flexibility, improving overall ease of operation and comfort. Furthermore, this offset arrangement optimizes force distribution, ensuring the connecting rope 530 is more evenly stressed during movement, reducing localized stress concentration and extending its service life. It also reduces the risk of failure due to wear or breakage of the connecting rope 530, further enhancing the durability and safety of the equipment. In some embodiments, the center line of the through hole intersects perpendicularly with the rotation axis of the rotating block (not shown in the figure). In this case, when the user operates the control handle, both the upper and lower adjustment seats will be unlocked simultaneously.

[0049] Optionally, the connecting rope is a single piece (not shown in the figure), with its middle portion passing through the through hole. The upper and lower ends of the connecting rope are fixedly connected to the upper and lower locking posts, respectively. In some embodiments of this utility model, there are two connecting ropes 530, each fixedly connected to the upper and lower locking posts 542, respectively. Specifically, as shown... Figure 4As shown, the connecting rope 530 includes a first section and a second section. The opposite ends of the first and second sections are fixed to the rotating block 520, and the opposing ends are fixed to two locking posts 542. It is easy to understand that the segmented design of the connecting rope 530 enhances the stability and reliability of the system. Each segment of the connecting rope 530 acts independently on one locking post 542, ensuring balanced force transmission during operation. Even if one segment of the connecting rope 530 fails or wears out, the other segment can continue to work, reducing the risk of overall system failure. Furthermore, this design facilitates maintenance and replacement. If a segment of the connecting rope 530 is damaged, only that segment needs to be replaced, rather than the entire connecting rope 530, reducing maintenance costs.

[0050] Refer to Figure 5 and Figure 6In some embodiments of this invention, the adjusting seat 210 is provided with multiple vertical stop slots 2102. These slots are spaced apart around the rotation axis of the output rod 220 and the adjusting seat 210 to adjust the vertical angle of the output rod 220, providing users with the ability to adjust the lever arm in the vertical direction, further enhancing the device's versatility and adaptability. By introducing multiple vertical stop slots 2102, users can precisely set the angle of each lever arm in the vertical direction according to different training needs and movement requirements. This not only allows users to perform more precise training for specific muscle groups but also adapts to users of different body types and training levels. For example, when performing shoulder presses or chest flyes, users can adjust the vertical angle of the output rod 220 to find the most suitable training position, thereby maximizing training effectiveness and reducing the risk of injury. In application, users simply adjust the output rod 220 into the desired vertical stop slot 2102 and fix it using the locking mechanism. This mechanical locking mechanism ensures the stability and safety of the output lever 220 during training, preventing movement deviations or potential injuries caused by accidental movement. Furthermore, the vertical stop slot 2102 provides users with a clear reference point, helping them maintain a consistent angle setting across multiple training sessions, thereby improving training consistency and repeatability. Simultaneously, this design increases training diversity, allowing users to combine different vertical and horizontal angle settings to create various compound movements, achieving comprehensive training of all muscle groups. For example, a user can start a low-angle back stretch in one workout and then quickly switch to a high-angle shoulder press without leaving the machine or making complex resets. This flexibility not only improves training efficiency but also enhances the user's fitness experience. Specifically, in some embodiments of this utility model, the adjustment component 200 includes a connecting seat 230, which is rotatably mounted on the adjustment seat 210. An output rod 220 is fixed to the connecting seat 230. A second locking component 240 is connected to the connecting seat 230, and the second locking component 240 is slidably disposed on the connecting seat 230 and can be inserted into the vertical stop groove 2102 to lock the connecting seat 230. Furthermore, a control sleeve 221 is slidably connected to the outer wall of the output rod 220. The control sleeve 221 is connected to the second locking component 240 and is used to unlock the connecting seat 230. By introducing the connecting seat 230 and the second locking component 240, the user can conveniently adjust the vertical tilt angle of the output rod 220 and ensure the stability and safety of the angle during training. Specifically, when the user needs to change the angle of the output rod 220, the second locking component 240 can be unlocked by operating the control sleeve 221. Once the second locking component 240 is unlocked, the user can freely rotate the connecting seat 230 to change the vertical angle of the output rod 220.Once the appropriate angle is found, the control sleeve 221 is released, and the second locking component 240 automatically inserts into the corresponding vertical stop slot 2102 under the action of the second compression spring 241, firmly locking the connecting seat 230 in the new position. This not only improves the ease of operation of the equipment but also enhances the safety and stability of training. Users can quickly and accurately adjust the angle without using any additional tools, reducing the risks caused by improper adjustment. For example, when performing back stretches or shoulder presses, users can easily adjust the angle of the output rod 220 according to their personal needs and comfort, ensuring that each movement achieves the best training effect. Furthermore, in some embodiments of this utility model, the second locking component 240 includes a second compression spring 241 and a locking block 242. The second compression spring 241 connects to and drives the locking block 242 to be inserted into the vertical stop slot 2102. In this regard, the second compression spring 241 provides sufficient elastic force so that the locking block 242 can be firmly inserted into the vertical stop slot 2102. This mechanical locking mechanism ensures that even during high-intensity training, the output rod 220 will not move unexpectedly, thereby maintaining the consistency and accuracy of training movements.

[0051] Reference Figure 7 In some embodiments of this invention, the output rod 220 is adapted to rotate inwards for storage within the rack 100, providing users with significant convenience and space efficiency, especially when the equipment is not in use. In application, after training or when space-saving is required, the user can rotate the output rod 220 inwards to store it flush against the rack 100. This foldable design not only reduces the overall space occupied by the equipment but also makes the trainer easier to store and move. This feature is particularly useful for home gyms, small fitness studios, or any space-constrained location, as it allows users to have an efficient strength training device without sacrificing valuable space. Furthermore, the storage design of the output rod 220 enhances the safety of the equipment. When not in use, storing the output rod 220 prevents accidental collisions or tripping, which is especially important for families with children or pets. The stored equipment also has a cleaner appearance, contributing to a cleaner and more organized fitness environment. From an operational perspective, this design is also very intuitive and simple. Users can easily retract the output lever 220 to complete the retraction action without complicated tools or steps. This not only simplifies the user's operation process but also reduces the risk of damage caused by improper operation. At the same time, this design also extends the service life of the device because the possibility of external wear and tear and damage to the device in the retracted state is greatly reduced.

[0052] In related technologies, commonly available fitness equipment providing constant resistance primarily uses a motor and differential gear mechanism for power transmission. Specifically, these devices typically include a motor that transmits power to a reel via a reducer and differential. A rope is wound around the reel, with the other end connected to a user-operable tensioning component. When the user pulls on the tensioning component, the reel rotates, driving the motor and generating resistance. While this design meets users' training needs to some extent, it also has the following shortcomings:

[0053] 1. Complex structure: Due to the need for multiple transmission components (such as reducers, differentials, etc.), the overall structure is relatively complex, which increases production costs and maintenance difficulty.

[0054] 2. The rope is prone to kinking: The rope is repeatedly wound and released on the reel, which can easily cause kinking and tangling. This not only affects the smoothness of training, but may also lead to equipment failure and reduce its service life.

[0055] 3. Inconvenient maintenance: The complex mechanical structure and easily damaged ropes increase the frequency and cost of equipment maintenance, affecting the user experience.

[0056] In this regard, refer to Figure 1 , Figures 8 to 11There are two resistance output modules 400, each generating resistance to the tension member 300 on the same side. Specifically, each resistance output module 400 includes a load motor 410, a drive chain 420, a connecting block 430, a movable pulley 440, and a wire rope 450 connected in sequence. The connecting block 430 is fixed to one side of the drive chain 420, the movable pulley 440 is rotatably mounted on the connecting block 430, the middle of the wire rope 450 is wound around the movable pulley 440, and both ends of the wire rope 450 are connected to the upper and lower tension members 300, respectively. In application, the load motor 410 can output load force; for example, it can output load force to the drive chain 420, and the load force can be adjusted according to the user's needs, for example, to specific values ​​such as 10kg, 15kg, 20kg, 25kg, and 30kg. In response, the pull block 310 is adapted to pull outwards to drive the wire rope 450, the movable pulley 440, the connecting block 430, and the transmission chain 420 to move together; then, the load motor 410 is connected to the transmission chain 420 and is used to drive the transmission chain 420 to reset. In some applications, the load motor 410 can output a constant load force. It should be noted that the power transmission system composed of the load motor 410, the transmission chain 420, the connecting block 430, the movable pulley 440, and the wire rope 450 not only simplifies the complex mechanical structure in traditional reel and rope designs, but also improves the stability and reliability of power transmission. In addition, the steel wire rope 450 is wound around the movable pulley 440, which not only avoids the problem of the rope getting kinked and tangled during use, ensuring the smoothness and safety of the training process, but also makes the displacement of the steel wire rope 450 twice that of the transmission chain 420 through the design of the movable pulley 440. As a result, the user can obtain a larger displacement range when pulling the tensioning component 300, thereby enhancing the training effect and improving the overall user experience.

[0057] Furthermore, refer to Figures 8 to 10The drive shaft of the load motor 410 is fixed with a drive sprocket 411. A first mounting base 120 is mounted on the frame 100, and a driven sprocket 122 is rotatably mounted on the first mounting base 120. A transmission chain 420 surrounds the drive sprocket 411 and the driven sprocket 122, driving them to rotate together. This design simplifies the transmission structure, reducing complex transmission components such as reducers and differentials found in traditional designs, thereby lowering manufacturing costs and maintenance difficulty. Simultaneously, the direct meshing of the sprocket and chain provides more efficient force transmission, reducing energy loss and ensuring users experience more realistic and stable resistance feedback during stretching exercises. Furthermore, this direct drive method enhances system stability and reliability, reduces vibration and noise during transmission, improves equipment smoothness, and provides a more efficient and comfortable training environment for users. Moreover, the driven sprocket 122 is vertically adjustable on the first mounting base 120, significantly improving adaptability and flexibility. It is easy to understand that the adjustable design of the driven sprocket 122 allows for adjustment of its position, helping to ensure that the transmission chain 420 is always at its optimal tension. This avoids problems of chain slack or over-tightness, thereby optimizing the resistance curve, extending the service life of the equipment, and improving the reliability and stability of the system. For example, a connecting shaft is slidably mounted on the first mounting base 120 in the vertical direction. The driven sprocket 122 is rotatably sleeved on the middle of the connecting shaft. Adjusting sleeves 123 are respectively mounted on both ends of the connecting shaft. The end of the adjusting sleeve 123 facing away from the connecting shaft is threadedly connected to the first mounting base 120, driving the adjusting sleeve 123 and the connecting shaft to move together in the vertical direction. This design enables fine adjustment of the position of the driven sprocket 122. Furthermore, this adjustment mechanism not only allows the user to easily adjust the position of the driven sprocket 122, ensuring that the transmission chain 420 is always at its optimal tension, but also avoids problems of chain slack or over-tightness, improving the stability and reliability of the system. Furthermore, the threaded drive connection design makes the adjustment process more precise and convenient, requiring no special tools and greatly simplifying daily maintenance and troubleshooting. Moreover, periodically adjusting the position of the driven sprocket 122 can effectively prevent accelerated chain wear caused by prolonged use, extending the equipment's lifespan.

[0058] In some embodiments, the drive chain has a closed-loop structure, and the connecting block is sleeved and fixed to the outer wall of one side of the drive chain (not shown in the figure). In some embodiments of this utility model, refer to Figure 8 and Figure 11The transmission chain 420 has an open structure, with both ends of the connecting block 430 connected to both ends of the transmission chain 420, ensuring that the transmission chain 420 maintains optimal tension. It should be noted that the open structure of the transmission chain 420 not only facilitates installation and disassembly, simplifying the production and maintenance process, but also reduces the risk of chain jamming and entanglement, improving the reliability and stability of the system and ensuring more stable and accurate resistance provided by the load motor 410.

[0059] Furthermore, refer to Figure 11 In some embodiments of this utility model, both ends of the connecting block 430 are provided with fixing plates 431, and the transmission chain 420 is provided with a fixing pin 421. One end of the fixing plate 431 is rotatably mounted on the connecting block 430, and the other end is fastened and fixed to the fixing pin 421. Thus, the connecting block 430 and the transmission chain 420 can be conveniently installed through the fixing plates 431. Optionally, each end of the connecting block 430 is installed and fixed to the fixing pin 421 through two fixing plates 431, and the two fixing plates 431 are fastened to the fixing pin 421 in a positive and negative fastening manner, effectively preventing the fixing pin 421 from falling off the fixing plates 431.

[0060] Refer to Figure 1 , Figures 8 to 10In some embodiments of this utility model, the frame 100 is provided with multiple guide wheels to guide the two ends of the wire rope 450 through the upper and lower output rods 220 respectively, and connect them to the pull block 310 corresponding to the position of the output rod 220. It is easy to understand that the presence of the guide wheels ensures the stability and consistency of the wire rope 450 during movement, reduces friction and wear, and thus extends the service life of the wire rope 450. Secondly, the guide wheels can effectively prevent the wire rope 450 from twisting, tangling, or bending during movement, which not only improves safety during training but also ensures the stability and reliability of power transmission. Furthermore, the reasonable arrangement of the guide wheels optimizes the path of the wire rope 450, making the entire device more compact and efficient, reducing unnecessary space occupation, and improving the overall aesthetics and user experience of the device. Taking two output rods 220 on one side of a resistance output module 400 as an example, a second mounting base 130 is installed on the upper side of the frame 100, and a third mounting base 140 is installed on the lower side of the frame 100. Multiple guide wheels include two first guide wheels 121, one second guide wheel 131, and one third guide wheel 141. The two first guide wheels 121 are spaced apart on the first mounting base 120, the second guide wheel 131 is rotatably mounted on the second mounting base 130, and the third guide wheel 141 is rotatably mounted on the third mounting base 140. In application, the wire rope 450 output from one side of the movable pulley 440 passes sequentially through the first guide wheel 121 and the second guide wheel 131, then passes through the upper output rod 220 and is fixed to the corresponding pull block 310; the wire rope 450 output from the other side of the movable pulley 440 passes sequentially through the first guide wheel 121 and the third guide wheel 141, then passes through the lower output rod 220 and is fixed to the corresponding pull block 310.

[0061] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. Four-arm multi-track strength trainer, characterized in that, The utility model relates to a resistance output device, including: A rack; Four adjusting assemblies are located at the same side of the rack and are arranged around the rack respectively, the adjusting assembly includes an adjusting seat and an output rod, the adjusting seat is connected to the rack in the horizontal direction, the output rod is connected to the adjusting seat in the vertical direction; Four stretching components are connected with the adjusting assembly one by one, the stretching component includes a pulling block, the pulling block is connected to the outside of the output rod, and the pulling block is suitable for pulling outward; A resistance output module is connected to the rack, and the resistance output module is used for outputting load force to the pulling block.

2. The four-arm multi-track strength trainer of claim 1, wherein: The adjusting seat is provided with a plurality of transverse gear holes, and the plurality of transverse gear holes are arranged at intervals around the rotation axis of the adjusting seat and the rack to adjust the horizontal swing angle of the adjusting seat.

3. The four-arm multi-track strength trainer of claim 2, wherein: The rack is connected with two control assemblies, and the two control assemblies are arranged at intervals in the middle of the rack, and the control assembly is used for adjusting two adjusting seats located at the same side.

4. The four-arm multi-track strength trainer of claim 3, wherein: The control assembly includes a control handle, a connecting rope and two first locking components, the first locking component is movably connected to the rack in the vertical direction and can be inserted and locked with the transverse gear hole, the control handle, the connecting rope and the first locking component are connected in sequence, and the control handle is rotated in different directions to respectively unlock two adjusting seats.

5. The four-arm multi-track strength trainer of claim 4, wherein: The first locking component includes a first compression spring and a locking column, and the first compression spring is connected and drives the locking column to be inserted into the transverse gear hole.

6. The four-arm multi-track strength trainer of claim 4, wherein: When the control handle is arranged horizontally, the connecting rope is in a straight state, and drives two adjusting seats to be in a locked state.

7. The four-arm multi-trajectory strength trainer of claim 1 or 2, wherein: The adjusting seat is provided with a plurality of vertical gear slots, and the plurality of vertical gear slots are arranged at intervals around the rotation axis of the output rod and the adjusting seat to adjust the vertical inclination angle of the output rod.

8. The four-arm multi-track strength trainer of claim 7, wherein: The adjusting assembly further includes a connecting seat, the connecting seat is rotatably installed on the adjusting seat, the output rod is fixed on the connecting seat, the connecting seat is connected with a second locking component, the second locking component is slidably arranged on the connecting seat and can be inserted with the vertical gear slot to lock the connecting seat; The outer wall of the output rod is slidably connected with a control sleeve, the control sleeve is connected with the second locking component and is used for unlocking the connecting seat.

9. The four-arm multi-track strength trainer of claim 8, wherein: The second locking component includes a second compression spring and a locking block, and the second compression spring is connected and drives the locking block to be inserted into the vertical gear slot.

10. The four-arm multi-track strength trainer of claim 1, wherein: The output rod is suitable for rotating inward to be accommodated in the rack.

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