Resistance module connecting structure and fitness equipment

Abstract

The utility model discloses a resistance module connecting structure and fitness equipment, and the resistance module connecting structure comprises a rack; the load assembly is connected to the rack, and the load assembly comprises a load motor and a movable part; the output assembly is connected to the rack and comprises a connecting block, a movable pulley, a connecting rope and a stretching part which are sequentially connected, the connecting block is fixed to the movable part, the movable pulley is rotationally installed on the connecting block, and the connecting rope is wound around the movable pulley and extends outwards; wherein the load motor can output load force, and the stretching part is suitable for being pulled outwards so as to drive the connecting rope, the movable pulley, the connecting block and the movable part to move together; the load motor is in transmission connection with the movable part and used for driving the movable part to reset. A transmission structure is obviously optimized, the stretchable displacement range in the operation and use process of players is enlarged, the problem that ropes are folded is reduced or even avoided, and the stability and smoothness of power transmission are improved.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to a resistance module connection structure, and fitness equipment having a resistance module connection structure. Background Technology

[0002] With increasing health awareness, the demand for home and commercial fitness equipment is growing. To meet the needs of different user groups, a wide variety of fitness equipment has emerged on the market. Among them, motor-driven fitness equipment is widely popular because it can provide stable resistance.

[0003] However, existing motor-driven fitness equipment still has some shortcomings in its power transmission mechanism, especially in designs that use a motor and differential transmission structure to output power through a winding reel winding the rope. In related technologies, fitness equipment typically uses a motor with a complex mechanical structure such as a differential and a reducer to distribute and transmit power. Consequently, during use, the stretching distance is equal to the rope's movement distance. Due to repeated stretching and rewinding on the reel, the rope is prone to kinking and tangling, leading to unstable power transmission and affecting the user experience. This kinking problem is particularly severe during high-intensity training, potentially causing equipment malfunctions or even safety hazards. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a resistance module connection structure, combined with a movable pulley design, which significantly optimizes the transmission structure, increases the stretchable displacement range during player operation, reduces or even avoids the problem of rope kinking, and improves the stability and smoothness of power transmission.

[0005] This utility model also proposes a fitness device having the above-mentioned resistance module connection structure.

[0006] The resistance module connection structure according to this utility model includes:

[0007] frame;

[0008] A load assembly, connected to the frame, the load assembly including a load motor and a moving part;

[0009] An output component is connected to the frame. The output component includes a connecting block, a movable pulley, a connecting rope, and a tensioning component connected in sequence. The connecting block is fixed to the movable component. The movable pulley is rotatably mounted on the connecting block. The connecting rope is wound around the movable pulley and extends outward.

[0010] The load motor is capable of outputting load force, and the tensioning component is adapted to pull outward to drive the connecting rope, the movable pulley, the connecting block, and the movable component to move together; the load motor is connected to the movable component in a transmission connection and is used to drive the movable component to reset.

[0011] According to the resistance module connection structure described in this utility model, it has at least the following beneficial effects: By connecting the load motor with the moving parts, such as chains, transmission belts, ropes, and lifting blocks, the connecting block fixed to the moving parts can undergo linear displacement, which is suitable for players to perform stretching movements on the stretching parts; furthermore, by utilizing the pulley system composed of movable pulleys and connecting ropes, the power transmission is effectively achieved. Compared with the existing system where the rope displacement is consistent with the stretching displacement, the design of the movable pulleys doubles the displacement of the connecting rope relative to the displacement of the moving parts. Thus, players can obtain a larger displacement range when pulling the stretching parts, thereby enhancing the training effect; in application, when players pull the stretching parts, the connecting block and movable pulleys will move accordingly, thereby driving the entire moving part and the load motor connected to it to move. This not only simplifies the transmission mechanism and reduces or even completely solves the problems caused by rope kinks, but also ensures the smoothness and stability of the power transmission process, improving the overall user experience.

[0012] According to some embodiments of the present invention, the resistance module connection structure is a transmission chain, and the connecting block is connected to one side of the transmission chain.

[0013] According to the resistance module connection structure described in some embodiments of this utility model, the load assembly further includes a driving sprocket and a driven sprocket arranged at intervals along the vertical direction. The driving sprocket is fixed to the drive shaft of the load motor, and the driven sprocket is rotatably mounted on the frame. The transmission chain surrounds the driving sprocket and the driven sprocket to drive the driving sprocket and the driven sprocket to rotate together.

[0014] According to some embodiments of the present invention, the resistance module connection structure is an open structure, and the two ends of the connecting block are respectively connected to the two ends of the transmission chain.

[0015] According to some embodiments of the present invention, the resistance module connection structure is provided with fixing plates at both ends of the connecting block, and the transmission chain is provided with a fixing pin. One end of the fixing plate is rotatably installed on the connecting block, and the other end is fastened and fixed to the fixing pin.

[0016] According to some embodiments of the present invention, the resistance module connection structure includes two lever arms, two tensioning components, and the tensioning components are arranged in a one-to-one correspondence with the lever arms. The middle part of the connecting rope is wound around the movable pulley, and the two ends of the connecting rope are respectively passed through the two lever arms to connect to the tensioning components.

[0017] According to some embodiments of the present invention, the resistance module connection structure is such that the lever arm is adjustablely mounted on the frame to adjust the path of the connecting rope.

[0018] According to some embodiments of the present invention, the resistance module connection structure further includes a guide component for guiding the connecting rope.

[0019] According to some embodiments of the present invention, the resistance module connection structure includes a first guide wheel and a second guide wheel. The center line of the first guide wheel is arranged horizontally, and the center line of the second guide wheel is arranged vertically. The connecting rope is output horizontally through the first guide wheel and the second guide wheel in sequence.

[0020] The fitness equipment according to this utility model includes the resistance module connection structure described in this utility model.

[0021] The fitness equipment according to this utility model has at least the following beneficial effects: integrating the above-mentioned resistance module connection structure into the fitness equipment not only solves the problems of unstable power transmission and easy damage of ropes in the prior art, but also greatly improves the overall performance of the product, providing users with a safe, reliable and efficient fitness solution.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is an exploded view of the resistance module connection structure according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the resistance module connection structure in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the connection structure between the load component and the output component of the resistance module connection structure in an embodiment of this utility model;

[0027] Figure 4 This is an exploded view of the connection structure between the driven sprocket and the mounting bracket in the resistance module connection structure of this utility model embodiment;

[0028] Figure 5 This is an exploded view of the connection structure between the connecting component of the resistance module connection structure and the transmission chain in an embodiment of this utility model.

[0029] Figure 6 This is a cross-sectional view of the connection structure between the lever arm and the mounting base of the resistance module connection structure in an embodiment of this utility model.

[0030] Figure 7 This is an exploded view of the connection structure between the lever arm and the mounting base of the resistance module connection structure in an embodiment of this utility model.

[0031] Figure 8 This is a schematic diagram of the structure of the fitness equipment according to an embodiment of the present invention.

[0032] Explanation of icon numbers:

[0033] Frame 100; Mounting bracket 110; Mounting base 120; Return spring 121; Gear slot 1201;

[0034] Load assembly 200; load motor 210; drive sprocket 211; transmission chain 220; fixed pin 221; connecting shaft 230; adjusting sleeve 231; driven sprocket 240;

[0035] Output component 300; connecting component 310; connecting block 311; movable pulley 3111; fixing plate 312; connecting rope 320; guiding component 330; first guide wheel 331; second guide wheel 332; lever arm 340; plug-in part 341; tensioning component 350. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0039] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0040] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] With increasing health awareness, the demand for home and commercial fitness equipment is growing. To meet the needs of different user groups, a wide variety of fitness equipment has emerged on the market. Among them, motor-driven fitness equipment is widely popular because it can provide stable resistance.

[0042] However, existing motor-driven fitness equipment still has some shortcomings in its power transmission mechanism, especially in designs that use a motor and differential transmission structure to output power through a winding reel winding the rope. In related technologies, fitness equipment typically uses a motor with a complex mechanical structure such as a differential and a reducer to distribute and transmit power. Consequently, during use, the stretching distance is equal to the rope's movement distance. Due to repeated stretching and rewinding on the reel, the rope is prone to kinking and tangling, leading to unstable power transmission and affecting the user experience. This kinking problem is particularly severe during high-intensity training, potentially causing equipment malfunctions or even safety hazards.

[0043] Therefore, such as Figures 1 to 5The diagram shows the resistance module connection structure proposed in this invention, including a frame 100, a load assembly 200 connected to the frame 100, and an output assembly 300 connected to the frame 100. The load assembly 200 includes a load motor 210 and a movable component. The output assembly 300 includes a connecting component 310, a connecting rope 320, and a tensioning component 350 connected in sequence. The connecting component 310 is fixed to the movable component. It is easy to understand that the load motor 210 can output a load force to the movable component, and the load force can be adjusted according to the player's needs, for example, adjusting the load force to specific values ​​such as 10kg, 15kg, 20kg, 25kg, and 30kg. Specifically, the connecting component 310 includes a connecting block 311 and a movable pulley 3111 connected in sequence, wherein the connecting block 311, the movable pulley 3111, and the connecting rope 320 are connected in sequence. Furthermore, the connecting block 311 is fixed to the movable component, the movable pulley 3111 is rotatably mounted on the connecting block 311, and the connecting rope 320 is wound around the movable pulley 3111 and extends outward. In some applications, the load motor 210 can output a constant load force, and the tensioning member 350 is adapted to pull outward to drive the connecting rope 320, the movable pulley 3111, the connecting block 311, and the movable component to move together. Then, the load motor 210 is connected to the movable component in a transmission connection and is used to drive the movable component to return to its original position. It should be noted that by connecting the load motor 210 to moving parts, such as chains, transmission belts, ropes, and lifting blocks, the connecting block 311, which is fixed to the moving parts, can undergo linear displacement, suitable for the player to perform stretching movements on the stretching component 350. Furthermore, the pulley system composed of the movable pulley 3111 and the connecting rope 320 achieves efficient power transmission. Compared with the existing system where the rope displacement is consistent with the stretching displacement, the design of the movable pulley 3111 doubles the displacement of the connecting rope 320 relative to the moving parts. As a result, the player can obtain a larger displacement range when pulling the stretching component 350, thereby enhancing the training effect. In application, when the player pulls the stretching component 350, the connecting block 311 and the movable pulley 3111 will move accordingly, thereby driving the entire moving part and the load motor 210 connected to it to move. This not only simplifies the transmission mechanism and reduces or even completely solves the problems caused by rope kinks, but also ensures the smoothness and stability of the power transmission process, improving the overall user experience.

[0044] Optionally, the movable component is a rope coil (not shown in the figure). Due to the pulley system composed of connecting block 311, movable pulley 3111, and connecting rope 320, the displacement of the rope coil is reduced by half compared to the stretching displacement. Therefore, the length of the reciprocating winding of the rope is reduced by half, which can reduce the problem caused by rope kinking. Optionally, the movable component is a lifting block (not shown in the figure). For example, a screw drive and linear guide structure are used between the load motor 210 and the lifting block. Thus, during the player's stretching training, the lifting block can reciprocate in a linear direction. Therefore, the use of the lifting block does not require winding, which completely solves the kinking problem caused by existing rope winding. Optionally, the movable component is a transmission belt (not shown in the figure). Compared with the reciprocating linear motion of the lifting block, the transmission belt performs reciprocating rotary motion. Similarly, the transmission belt does not require winding, which can also completely solve the kinking problem caused by existing rope winding.

[0045] Refer to Figure 2 and Figure 3 In some embodiments of this utility model, the movable component is a transmission chain 220, and a connecting block 311 is connected to one side of the transmission chain 220. Similar to a transmission belt, the transmission chain 220 can perform reciprocating rotational motion, and can also completely solve the problem of kinking caused by the winding of existing ropes. Furthermore, the transmission chain 220 has good structural rigidity and can withstand a large load force. Further, the load assembly 200 includes a driving sprocket 211 and a driven sprocket 240 arranged at intervals in the vertical direction. The driving sprocket 211 is fixed to the drive shaft of the load motor 210, and the driven sprocket 240 is rotatably mounted on the frame 100. The transmission chain 220 surrounds the driving sprocket 211 and the driven sprocket 240 to drive the driving sprocket 211 and the driven sprocket 240 to rotate together. This design simplifies the transmission structure and reduces the complex transmission links in traditional designs, such as reducers and differentials, thereby reducing manufacturing costs and maintenance difficulty. Meanwhile, the direct engagement of the sprocket and chain provides more efficient force transmission, reduces energy loss, and ensures that players can feel a more realistic and stable resistance feedback when performing stretching exercises. Furthermore, this direct drive method enhances the stability and reliability of the system, reduces vibration and noise during transmission, improves the smoothness of equipment operation, and provides players with a more efficient and comfortable training environment. Further, in some embodiments of this invention, the frame 100 is equipped with a mounting bracket 110, and the driven sprocket 240 is vertically adjustable and mounted on the mounting bracket 110, significantly improving adaptability and flexibility. It is easy to understand that the adjustable design of the driven sprocket 240 allows for adjustment of its position, helping to ensure that the transmission chain 220 is always in optimal tension, avoiding 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.

[0046] Specifically, refer to Figure 4 The mounting bracket 110 has a vertically slidable connecting shaft 230. A driven sprocket 240 is rotatably fitted onto the middle of the connecting shaft 230. Adjusting rods 231 are fitted onto both ends of the connecting shaft 230. The end of the adjusting rod 231 facing away from the connecting shaft 230 is threadedly connected to the mounting bracket 110, driving the adjusting rod 231 and the connecting shaft 230 to move together vertically. This design allows for precise adjustment of the driven sprocket 240's position. This adjustment mechanism not only allows users to easily adjust the position of the driven sprocket 240, ensuring the transmission chain 220 is always at optimal tension, thus avoiding chain slack or over-tightening and improving system stability and reliability. Furthermore, the threaded connection design makes the adjustment process more precise and convenient, requiring no special tools, greatly facilitating daily maintenance and troubleshooting. Moreover, regularly adjusting the position of the driven sprocket 240 can effectively prevent accelerated chain wear caused by prolonged use, extending the equipment's service life.

[0047] In some embodiments, the drive chain has a closed-loop structure, and the connecting component 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, such as Figure 5 As shown, the transmission chain 220 has an open structure, with both ends of the connecting component 310 connected to both ends of the transmission chain 220, ensuring that the transmission chain 220 maintains optimal tension. It should be noted that the open structure of the transmission chain 220 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 210.

[0048] Furthermore, refer to Figure 5 Both ends of the connecting block 311 are provided with fixing plates 312, and the transmission chain 220 is provided with a fixing pin 221. One end of the fixing plate 312 is rotatably mounted on the connecting block 311, and the other end is fastened and fixed to the fixing pin 221. Thus, the connecting block 311 and the transmission chain 220 can be easily installed through the fixing plates 312. Optionally, each end of the connecting block 311 is installed and fixed to the fixing pin 221 through two fixing plates 312, and the two fixing plates 312 are fastened to the fixing pin 221 in a positive and negative fastening manner, effectively preventing the fixing pin 221 from falling off the fixing plates 312.

[0049] Refer to Figures 2 to 4In some embodiments of this invention, the output component 300 includes a guide component 330, which is disposed between the connecting rope 320 and the tensioning component 350 to guide the connecting rope 320. It should be noted that the addition of the guide component 330 effectively maintains the straightness of the connecting rope 320, reduces friction between the connecting rope 320 and other components, and makes the player's operation smoother and more comfortable. Furthermore, the guide component 330 can effectively prevent the connecting rope 320 from knotting or tangling during use, improving the reliability and safety of the equipment. By optimizing the path of the connecting rope 320, the guide component 330 ensures that the rope does not deviate from the predetermined trajectory during movement, further improving the accuracy and effectiveness of training. Specifically, the guide component 330 includes a first guide wheel 331, the centerline of which is horizontally arranged. The connecting rope 320 is horizontally output through the first guide wheel 331, which helps to precisely control the horizontal movement trajectory of the connecting rope 320, ensuring that the rope remains straight during movement, reducing friction with other components, and making the player's operation smoother and more comfortable. Furthermore, the guide component 330 includes a second guide wheel 332, whose centerline is vertically arranged. The connecting rope 320 passes horizontally through the first guide wheel 331 and the second guide wheel 332 in sequence, further optimizing the path of the connecting rope 320 and forming a more flexible connecting rope 320 guiding system. This system can adapt to stretching movements at different angles and directions, enhancing the versatility and adaptability of the equipment. In addition, the second guide wheel 332 effectively prevents the connecting rope 320 from shifting or tangling in the vertical direction, improving the reliability and safety of the equipment. Through the design of the dual guide wheels, the connecting rope 320 remains straight and stable during movement, reducing friction with other components and making the player's operation smoother and more comfortable.

[0050] In some embodiments of this utility model, such as Figure 1 , Figures 6 to 8As shown, the output component 300 includes two lever arms 340 and two tensioning components 350, arranged one-to-one with the lever arms 340. A connecting rope 320 is wound around a movable pulley 3111 at its center, and its two ends pass through the two lever arms 340 to connect to the tensioning components 350. Furthermore, one load motor 210 can correspond to two independently pullable tensioning components 350, resulting in a simpler structure and lower cost. Moreover, the lever arms 340 are adjustablely mounted on the frame 100 to adjust the path of the connecting rope 320, allowing users to adjust the path according to personal preferences and different training objectives. This provides a more diverse range of training modes, enabling the equipment to adapt to different types of training movements and enhancing the user's training experience, allowing for personalized adjustments based on individual needs. Furthermore, the design of the connecting rope 320 passing through the lever arm 340 improves the stability of the connecting rope 320, reduces its deviation and friction during movement, and ensures the accuracy and effectiveness of training. Specifically, the frame 100 is equipped with a mounting base 120, which has multiple circumferentially spaced position slots 1201. The lever arm 340 is equipped with a plug-in part 341, which is inserted into any position slot 1201 to adjust the angle of the lever arm 340 with the horizontal plane. A return spring 121 is provided between the mounting base 120 and the lever arm 340, which drives the plug-in part 341 into the position slot 1201. In use, the user can pull the lever arm 340 outwards and rotate it to the appropriate position. Then, under the action of the return spring 121 or the user pushing inwards, the plug-in part 341 is aligned and inserted into one of the position slots 1201. Optionally, the tensioning component 350 includes a connecting ball, and the connecting rope 320 is threaded through the lever arm 340 and fixed to the connecting ball. The connecting ball is located on the outside of the lever arm 340. Under normal conditions, the outer wall of the lever arm 340 restricts the connecting ball from moving inward. The connecting ball can be connected to equipment such as a training handle for the player to pull. In use, the player pulls the training handle outward to complete the outward pull training.

[0051] The fitness equipment according to an embodiment of the present invention includes a resistance module connection structure according to an embodiment of the present invention. Integrating the above-mentioned resistance module connection structure into the fitness equipment not only solves the problems of unstable power transmission and easy damage to ropes in the prior art, but also greatly improves the overall performance of the product, providing users with a safe, reliable, and efficient fitness solution.

[0052] Other components and operations of the fitness equipment according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0053] 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. A resistance module connection structure, characterized by, The utility model relates to a resistance module connecting structure, including: A rack; A load assembly connected to the rack, the load assembly comprising a load motor and a movable piece; An output assembly connected to the rack, the output assembly comprising a connecting block, a movable pulley, a connecting rope and a stretching component connected in sequence, the connecting block being fixed to the movable piece, the movable pulley being rotatably installed on the connecting block, the connecting rope being wound around the movable pulley and extending outwardly; Wherein, the load motor can output a load force, and the stretching component is suitable for pulling outwardly to drive the connecting rope, the movable pulley, the connecting block and the movable piece to move together; the load motor is in transmission connection with the movable piece and is used to drive the movable piece to reset.

2. The resistance module connection structure of claim 1, wherein: The movable piece is a transmission chain, and the connecting block is connected to one side of the transmission chain.

3. The resistance module connection structure of claim 2, wherein: The load assembly further comprises a driving sprocket and a driven sprocket arranged in a vertical direction, the driving sprocket being fixed to the drive shaft of the load motor, the driven sprocket being rotatably installed on the rack, and the transmission chain being wound around the driving sprocket and the driven sprocket to drive the driving sprocket and the driven sprocket to rotate together.

4. The resistance module connection structure of claim 2, wherein: The transmission chain is of an open structure, and both ends of the connecting block are connected to both ends of the transmission chain, respectively.

5. The resistance module connection structure according to claim 2 or 4, characterized by: Both ends of the connecting block are provided with fixing pieces, and the transmission chain is provided with a fixing pin shaft, one end of the fixing piece being rotatably installed on the connecting block, and the other end being buckled and fixed to the fixing pin shaft.

6. The resistance module connection structure of claim 1, wherein: The output assembly comprises two force arm rods, and the stretching component has two, the stretching component being arranged in one-to-one correspondence with the force arm rods, the middle part of the connecting rope being wound around the movable pulley, and both ends of the connecting rope being threaded through two force arm rods to be connected to the stretching component.

7. The resistance module connection structure of claim 6, wherein: The force arm rods are adjustably installed on the rack to adjust the path of the connecting rope.

8. The resistance module connection structure of claim 1, wherein: The output assembly further comprises a guide component to guide the connecting rope.

9. The resistance module connection structure of claim 8, wherein: The guide component comprises a first guide wheel and a second guide wheel, the center line of the first guide wheel being horizontally arranged, and the center line of the second guide wheel being vertically arranged, the connecting rope being output horizontally through the first guide wheel and the second guide wheel in sequence.

10. Fitness device, characterized by: The utility model relates to a resistance module connecting structure, including: As claimed in any one of claims 1 to 9.

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