Fitness stool

Abstract

The utility model relates to a fitness stool which comprises a base, a backrest, a force transmission seat, a pull rope, a guide piece and a resistance rope. The first end of the backrest is rotatably connected with the base, and the second end can move relative to the base; the force transmission seat and the inner side surface of the backrest are arranged at intervals; the pull rope is connected with the force transmission seat, the two ends of the pull rope are force application ends, and when external force acts on the two force application ends, the force transmission seat can move relative to the backrest; the guide piece is installed on the inner side of the backrest and located on the side, close to the first end of the backrest, of the force transmission base, and the guide piece and the inner side surface of the backrest are arranged at intervals; the resistance rope is located on the inner side of the backrest, one end of the resistance rope is close to the second end of the backrest and connected with the backrest, and the other end of the resistance rope extends from the side, close to the backrest, of the force transmission base to the first end of the backrest, and is connected with the force transmission base after being wound from the side, facing the backrest, of the guide piece to the other side away from the backrest. By optimizing the connecting mode of the resistance rope, the structure is more compact, and the risk that the resistance rope falls off is reduced.

Description

Technical Field

[0001] This application belongs to the field of fitness equipment technology, and in particular relates to a fitness stool. Background Technology

[0002] In contemporary society, people's pursuit of a healthy life is becoming increasingly strong, and fitness activities are becoming more and more popular. Fitness benches, as a common type of fitness equipment, are widely used in homes, gyms, and other places. Whether performing strength training, such as bench presses and dumbbell flyes, or engaging in flexibility training, fitness benches provide users with a stable support platform, meeting diverse fitness needs and becoming an indispensable piece of equipment in the fitness process.

[0003] Currently, some fitness benches are equipped with fly arms, which are usually located on both sides of the backrest and can be extended relative to the backrest. Resistance bands provide resistance to the pulleys inside the fly arms, allowing users to perform strength training. For these types of fitness benches, the pulleys for users to apply force are wound around pulleys, which are connected to the resistance bands. This allows the resistance from the resistance bands to be transferred to the user, enabling the exercise of muscles in the chest, shoulders, and arms.

[0004] However, the existing installation method for resistance cables is relatively complicated. One end of the resistance cable is connected to the pulley seat, and the other end is connected to a fixed structure on the base of the exercise bench, which takes up a lot of space and is not conducive to storage. In addition, when the backrest is opened or closed relative to the base, it may cause unstable changes in the tension of the resistance cable, which may lead to the resistance cable accidentally falling off, affecting the user experience. Utility Model Content

[0005] To address at least one shortcoming in the relevant technology, this application provides a fitness bench that optimizes the connection method of the resistance ropes, making the structure more compact, reducing the risk of the resistance ropes falling off, and improving the stability and reliability of the fitness bench during use.

[0006] This application provides a fitness bench, including a base, a backrest, a force transmission seat, a pull rope, a guide, and a resistance rope. The backrest is disposed on the base and includes a first end and a second end opposite to each other. The first end is rotatably connected to the base, and the second end is movable relative to the base to change the angle between the backrest and the base. The side of the backrest facing the base is the inner side of the backrest. The force transmission seat is spaced apart from the inner surface of the backrest. The pull rope is connected to the force transmission seat, and the two ends of the pull rope are force-applying ends. When an external force is applied to the two force-applying ends, the force transmission seat can move relative to the backrest. The guide is installed on the inner side of the backrest and is located on the side of the force transmission seat near the first end of the backrest. The guide is spaced apart from the inner surface of the backrest. The resistance rope is located on the inner side of the backrest. One end of the resistance rope is close to the second end of the backrest and connected to the backrest. The other end of the resistance rope extends from the side of the force transmission seat near the backrest toward the first end of the backrest, and then wraps around from the side of the guide facing the backrest to the side away from the backrest before connecting to the force transmission seat.

[0007] In some embodiments, the exercise bench also includes a motor, which is located inside the base and the output end of the motor is connected to a force transmission seat.

[0008] In some embodiments, multiple resistance ropes are provided, with the ends of the multiple resistance ropes near the second end of the backrest spaced apart on the backrest.

[0009] In some embodiments, a resistance rope limiting seat is installed on the inner side of the backrest. The resistance rope limiting seat includes a main body and two sets of partition components. The main body is located on the side of the multiple resistance ropes away from the backrest and extends along the width direction of the backrest. The two sets of partition components are respectively disposed on both sides of the main body in the length direction of the resistance ropes. Each set of partition components includes multiple partitions arranged side by side along the width direction of the main body. Each partition extends from the main body to the inner surface of the backrest, and a rope passage gap is formed between adjacent partitions. Each rope passage gap in the two sets of partition components is correspondingly provided. Each resistance rope passes through two corresponding rope passage gaps in the two sets of partition components and is separated from the adjacent resistance ropes by the partitions.

[0010] In some embodiments, a first limiting plate and a second limiting plate are installed on the inner side of the backrest; a plurality of first openings are formed on the first limiting plate, with the opening ends of the first openings facing the backrest direction; a plurality of second openings are formed on the second limiting plate, with the opening ends of the second openings facing away from the backrest direction; the first limiting plate and the second limiting plate are stacked and connected to form a limiting assembly, and the limiting assembly is spaced apart from the inner surface of the backrest to allow the resistance rope to pass through; the plurality of first openings correspond one-to-one with the plurality of second openings, and each first opening and its corresponding second opening form a rope passage hole, which corresponds one-to-one with the resistance rope; the limiting assembly is located between the guide member and the force transmission seat, and the end of each resistance rope passes around the guide member and then passes through the corresponding rope passage hole to connect with the force transmission seat.

[0011] In some embodiments, a support rod is provided on the base, and a support seat is fixed on the support rod; two backrest brackets are fixedly installed on the inner surface of the backrest, the two backrest brackets are located on both sides of a plurality of resistance ropes, and extend from the first end of the backrest toward the second end of the backrest, and the ends of the two backrest brackets near the first end of the backrest are hinged to the support seat.

[0012] In some embodiments, a connecting beam is provided on the inner side of the backrest, connecting two backrest supports and forming a clearance space between the connecting beam and the backrest supports for the force transmission seat to pass through; a first adjusting bracket is installed on the connecting beam, the first adjusting bracket is an arc-shaped structure with a point on the rotation axis of the backrest support as the center and located in a vertical plane, and a plurality of first adjusting holes are spaced apart on the first adjusting bracket; a first through hole is formed on the support rod, and a first positioning member is inserted into the support rod, one end of the first positioning member extending into the first through hole; the base is hollow inside and a first insertion hole is formed on the upper surface of the base; the first through hole and the first insertion hole are located on the arc where the first adjusting bracket is located, and the end of the first adjusting bracket away from the connecting beam passes through the first through hole and is inserted into the first insertion hole; during the rotational stroke of the first adjusting bracket with the backrest movement, the first positioning member extends into the first through hole and is inserted into the first adjusting hole corresponding to the positioning angle of the backrest.

[0013] In some embodiments, the exercise bench further includes a seat cushion disposed on a base. The seat cushion includes a first end adjacent to the backrest and a second end away from the backrest. The side of the seat cushion facing the base is the inner side of the seat cushion. A seat cushion bracket is fixedly installed on the inner surface of the seat cushion. The end of the seat cushion bracket near the backrest is hinged to a support seat. A second adjustment bracket is installed on the seat cushion bracket. The second adjustment bracket is an arc-shaped structure centered on a point on the rotation axis of the seat cushion bracket and located in a vertical plane. A plurality of second adjustment holes are spaced apart on the second adjustment bracket. A second through hole is formed on the support rod, and a second positioning member is inserted into the support rod. One end of the second positioning member extends into the second through hole. A second insertion hole is formed on the upper surface of the base. The second through hole and the second insertion hole are located on the arc where the second adjustment bracket is located. The end of the second adjustment bracket away from the seat cushion bracket passes through the second through hole and is inserted into the second insertion hole. During the rotational stroke of the second adjustment bracket as the seat cushion moves, the second positioning member extends into the second through hole and is inserted into the second adjustment hole corresponding to the positioning angle of the seat cushion.

[0014] In some embodiments, the exercise bench includes a flat bench state and a backrest open state; in the flat bench state, the backrest and seat cushion are positioned horizontally; in the backrest open state, the backrest is positioned at an angle such that the second end of the backrest is higher than the first end of the backrest.

[0015] In some embodiments, the upper surfaces of the support rod and the base are inclined at a height that decreases from the seat cushion toward the backrest; the exercise bench also includes a negative angle state in which the backrest is positioned at an angle such that the second end of the backrest is lower than the first end of the backrest, the seat cushion is positioned at an angle such that the second end of the seat cushion is higher than the first end of the seat cushion, and the backrest and the seat cushion are located on the same plane.

[0016] Compared with the prior art, the advantages and positive effects of this application are as follows:

[0017] (1) In at least one embodiment of the present application, the entire resistance rope of the fitness bench is arranged inside the backrest. Even if the backrest is flipped up relative to the base, it will not affect the force on the resistance rope. This can prevent the resistance rope from accidentally falling off during the adjustment of the backrest angle, ensuring the stability and reliability of the resistance rope during use and improving the user experience.

[0018] (2) In at least one embodiment of the present application, the resistance rope of the fitness stool is wound from the inside to the outside, so that the resistance rope is close to the inner surface of the backrest, making the overall arrangement of the inner side of the backrest more compact and the backrest space thinner, which is conducive to further reducing the volume of the fitness stool.

[0019] (3) In at least one embodiment of this application, the resistance rope of the fitness bench is wound from the inside to the outside, which can shorten the force path of the resistance rope, reduce the force, make the tension distribution of the resistance rope more uniform, and improve the training effect. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 In one embodiment of this application, the backrest of the exercise bench is in the open position. Figure 1 ;

[0022] Figure 2 In one embodiment of this application, the backrest of the exercise bench is in the open position. Figure 2 ;

[0023] Figure 3 This is a front view of the backrest of the exercise bench in an embodiment of this application with the backrest in the open state;

[0024] Figure 4 This is a side view of the backrest of the exercise bench in an embodiment of this application with the backrest in the open state;

[0025] Figure 5This is a schematic diagram of the structure of the inner side of the backrest in one embodiment of this application;

[0026] Figure 6 for Figure 5 A sectional view along section line AA;

[0027] Figure 7 This is a schematic diagram showing the structure of the pulley with a portion of the structure removed from the inside of the backrest in one embodiment of this application;

[0028] Figure 8 This is a schematic diagram illustrating the relationship between the resistance rope and related components in one embodiment of this application;

[0029] Figure 9 For one embodiment of this application, the three-dimensional resistance rope limiting seat Figure 1 ;

[0030] Figure 10 For one embodiment of this application, the three-dimensional resistance rope limiting seat Figure 2 ;

[0031] Figure 11 This is a perspective view of the limiting component in one embodiment of this application;

[0032] Figure 12 This is a top view of the limiting component in one embodiment of this application;

[0033] Figure 13 This is an exploded view of the limiting component in one embodiment of this application;

[0034] Figure 14 for Figure 3 The diagram shown illustrates the fitness bench after the base side panel has been removed.

[0035] Figure 15 This is a perspective view of the backrest of the exercise bench in an open state according to another embodiment of this application;

[0036] Figure 16 for Figure 15 A magnified view of part B in the middle;

[0037] Figure 17 This is a front view of the exercise bench in a flat bench state in another embodiment of this application;

[0038] Figure 18 for Figure 17 The diagram shown illustrates the fitness bench after the base side panel has been removed.

[0039] Figure 19 This is a front view of the exercise bench in a negative angle state in another embodiment of this application;

[0040] Figure 20 for Figure 19The diagram shown illustrates the fitness bench after the base side panel has been removed.

[0041] Figure 21 This is a front view of the exercise bench with its backrest open and seat cushion tilted, according to another embodiment of this application.

[0042] In the picture:

[0043] 110. Base; 111. First insertion hole; 112. Second insertion hole; 120. Support rod; 121. First through hole; 122. Second through hole; 130. Support seat; 140. First positioning component; 150. Second positioning component; 210. Backrest; 211. First end of backrest; 212. Second end of backrest; 220. Fixing plate; 230. Resistance rope limiting seat; 231. Main body; 232. Divider; 233. Rope passage gap; 240. Limiting assembly; 241. First limiting plate; 2411. First opening; 242. Second limiting plate; 2421. Second opening; 243. Rope passage hole; 250. Guide component; 251. Turning rod ; 252, Steering wheel; 260, Backrest bracket; 270, Connecting beam; 280, First adjusting bracket; 281, First adjusting hole; 290, Protective cover; 310, Seat cushion; 311, First end of seat cushion; 312, Second end of seat cushion; 320, Seat cushion bracket; 330, Second adjusting bracket; 331, Second adjusting hole; 400, Force transmission seat; 401, Hook; 500, Pull rope; 510, Force application end; 600, Resistance rope; 610, Connecting end sleeve; 710, First pulley; 720, Second pulley; 810, Motor; 820, Transmission rope; 910, Flying bird arm; 920, Angle adjusting seat; 921, Positioning hole; 930, Positioning pin. Detailed Implementation

[0044] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0045] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0046] In the description of this application, it should be understood that the terms "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0047] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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, an electrical connection, or a connection that allows communication between components; 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. The term "multiple" in this application refers to two or more.

[0049] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is 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 can mean that the first feature is 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.

[0050] This application provides a fitness bench, such as... Figures 1-4 As shown, the exercise bench includes a base 110 and a backrest 210 disposed on the base 110.

[0051] The base 110 provides bottom support for the exercise bench, maintaining its stability during use. The base 110 typically has a large contact area with the ground, thus providing stable support and preventing it from tipping over during use.

[0052] The backrest 210 includes a first end 211 and a second end 212. The first end 211 is rotatably connected to the base 110, and the second end 212 can move relative to the base 110 to change the angle between the backrest 210 and the base 110. The side of the backrest 210 facing the base 110 is the inner side of the backrest 210. When the backrest 210 is opened, it can be used by the user to lean against for various types of strength training.

[0053] like Figures 1-6 As shown, a force transmission seat 400 and a pull rope 500 are provided on the inner side of the backrest 210; the force transmission seat 400 is spaced apart from the inner surface of the backrest 210; the pull rope 500 is connected to the force transmission seat 400, and the two ends of the pull rope 500 are force application ends 510. When an external force is applied to the two force application ends 510, the force transmission seat 400 can move relative to the backrest 210.

[0054] A guide 250 is also installed on the inside of the backrest 210. The guide 250 is located on the side of the force transmission seat 400 near the first end 211 of the backrest 210. The guide 250 is spaced apart from the inner surface of the backrest 210.

[0055] In this embodiment, a resistance rope 600 is used to connect the force transmission seat 400. For example... Figures 1-6 As shown, the resistance rope 600 is located inside the backrest 210. One end of the resistance rope 600 is close to the second end 212 of the backrest 210 and connected to the backrest 210. The other end extends from the side of the force transmission seat 400 close to the backrest 210 toward the first end 211 of the backrest 210, and then wraps around from the side of the guide member 250 facing the backrest 210 to the other side away from the backrest 210 before connecting to the force transmission seat 400.

[0056] The fitness bench provided in this application, such as Figure 6 As shown, one end of the resistance rope 600 is fixed to the backrest 210 near the second end 212, while the other end extends towards the first end 211 of the backrest 210, passes around the guide 250, and then connects to the force transmission seat 400 in the opposite direction. This connection method of the resistance rope 600 changes the existing method of connecting the resistance rope 600 by relying on the fixed structure of the base 110. This allows the entire rope of the resistance rope 600 to be arranged inside the backrest 210. Even if the backrest 210 is flipped up relative to the base 110, it will not affect the force on the resistance rope 600. This avoids the resistance rope 600 from accidentally falling off during the adjustment of the backrest 210 angle, ensuring the stability and reliability of the resistance rope 600 during use and improving the user experience.

[0057] In the aforementioned fitness bench, the resistance rope 600, near the backrest 210, is located inside the force transmission seat 400. The end of the resistance rope 600 is guided by the guide 250 from the side facing the backrest 210 to the side opposite the backrest 210 and then connected to the force transmission seat 400, making the resistance rope 600 generally wrapped around the force transmission seat 400 from the inside out. This arrangement means that the resistance rope 600 mainly occupies the space adjacent to the inner surface of the backrest 210. Compared to the outside-in wrapping method, there is no need to provide extra space for the resistance rope 600 on the outside of the pull rope 500, thus making the overall arrangement inside the backrest 210 more compact and the space of the backrest 210 thinner, which helps to further reduce the volume of the fitness bench. In addition, the inside-out wrapping method can shorten the force path of the resistance rope 600, reduce the force, and make the tension distribution of the resistance rope 600 more uniform, improving the training effect.

[0058] The resistance rope 600 can be made of elastic dynamic rope, which uses its own elastic restoring force to provide resistance to the force application end 510 of the pull rope 500 for users to perform strength training.

[0059] In some embodiments, the pull cord 500 connects the force transmission seat 400 and the inner surface of the backrest 210 via pulleys. For example... Figure 7 As shown, the pulley system includes at least two first pulleys 710 and at least one second pulley 720. The first pulleys 710 are mounted side-by-side on the inner side of the backrest 210 and near the second end 212 of the backrest 210. The second pulley 720 is mounted on the force transmission seat 400. The pull rope 500 alternately winds around the circumference of the first pulleys 710 and the circumference of the second pulley 720. A space for accommodating the resistance rope 600 is formed between the pull rope 500 and the inner surface of the backrest 210. Figure 7 In the embodiment shown, there are four first pulleys 710 and three second pulleys 720. The number of first pulleys 710 and second pulleys 720 can be selected according to actual needs.

[0060] In the above embodiment, the pull rope 500 passes through the first pulley 710 and the second pulley 720 and is connected to the resistance rope 600 through the force transmission seat 400, forming a force transmission system. The user pulls the pull rope 500 through the two force-applying ends 510, providing a pulling force to the force transmission seat 400 towards the second end 212 of the backrest 210. The resistance rope 600 provides resistance in the opposite direction to the force transmission seat 400. During training, the user needs to overcome the resistance of the resistance rope 600 to further pull the force transmission seat 400, thereby achieving the purpose of strength training.

[0061] In some embodiments, the exercise bench employs resistance ropes 600 to provide resistance. Multiple resistance ropes 600 may be provided as needed, with the ends of the multiple resistance ropes 600 near the second end 212 of the backrest 210 spaced apart and mounted on the backrest 210. For example, in Figure 5 In the middle, there are six resistance ropes 600, and one end of each of the six resistance ropes 600 is arranged side by side on the inside of the backrest 210.

[0062] In other embodiments, such as Figures 15-20 As shown, the exercise bench employs a combination of a resistance cable 600 and a motor 810. The motor 810 is housed within the base 110, and its output end is connected to a force transmission seat 400. In this configuration, the force output by the motor 810 is transmitted from the force transmission seat 400 to the resistance cable 500, and then to the user via the force-applying end 510 of the resistance cable 500. The resistance cable 600 is always taut, providing the necessary tension to ensure the cable 500 remains taut. The motor 810 can be connected to the force transmission seat 400 via a transmission cable 820. One end of the transmission cable 820 is connected to the output shaft of the motor 810, and the other end is connected to the force transmission seat 400. When the motor 810 rotates, it tightens the transmission cable 820, providing tension to the force transmission seat 400 and thus providing training resistance.

[0063] In the above embodiment, the training resistance is mainly provided by the motor 810. By adjusting the output force and / or output mode of the motor 810, appropriate resistance can be provided to the exercise bench according to the user's needs, thus offering multiple training modes. The motor 810 is a variable-speed motor; specifically, the motor 810 can be a torque motor with adjustable torque. The resistance rope 600 mainly plays an auxiliary role, providing necessary tension to the pull rope 500 during the initial shutdown or startup of the motor 810, preventing the pull rope 500 from slackening and slipping off the pulley, ensuring the smoothness and continuity of the training process. In this case, only two resistance ropes 600 may be provided.

[0064] In some embodiments, such as Figure 5 , Figure 6 and Figure 8 As shown, a fixing plate 220 is provided on the inner side of the backrest 210 near the second end 212, and the fixing plate 220 is fitted and connected to the inner surface of the backrest 210. Multiple resistance ropes 600 are spaced apart on the fixing plate 220 near the second end 212 of the backrest 210, thereby fixing the resistance ropes 600 to the inner surface of the backrest 210. This connection method allows the resistance ropes 600 to be close to the inner surface of the backrest 210, reducing the space occupied by the resistance ropes 600 and making the arrangement more compact.

[0065] In some embodiments, connecting sleeves 610 are respectively fitted onto both ends of the resistance rope 600. One connecting sleeve 610 is fixedly mounted on the fixing plate 220, and the other connecting sleeve 610 is fixedly mounted on the force transmission seat 400. The fixed installation can be achieved using bolt connections or other fastening methods. In this embodiment, both ends of the resistance rope 600 are securely connected, preventing problems such as the resistance rope 600 falling off during use and improving the stability of use.

[0066] Alternatively, a hook 401 is provided on the force transmission base 400, the number of hooks 401 corresponding to the number of resistance ropes 600. A connection hole is provided on the connection end sleeve 610 of the resistance rope 600 and the connection end of the force transmission base 400. The connection hole is hung on the hook 401 to realize a detachable connection with the force transmission base 400.

[0067] In some embodiments, such as Figures 8-10 As shown, a resistance rope limiting seat 230 is installed on the inner side of the backrest 210. The resistance rope limiting seat 230 includes a main body 231 and two sets of partition components. The main body 231 is located on the side of the multiple resistance ropes 600 away from the backrest 210 and extends along the width direction of the backrest 210. The two sets of partition components are respectively located on both sides of the main body 231 in the length direction of the resistance ropes 600. Each set of partition components includes multiple partitions 232 arranged side by side along the width direction of the main body 231. Each partition 232 extends from the main body 231 toward the inner surface of the backrest 210. A rope passage gap 233 is formed between adjacent partitions 232. Each rope passage gap 233 in the two sets of partition components is correspondingly set. Each resistance rope 600 passes through two corresponding rope passage gaps 233 in the two sets of partition components and is separated from the adjacent resistance rope 600 by the partitions 232.

[0068] In the above embodiment, a resistance rope limiting seat 230 is installed on the inner side of the backrest 210, with the main body 231 located on the side of the resistance rope 600 away from the backrest 210. This limits the resistance rope 600 to a position adjacent to the inner surface of the backrest 210, making the internal structure of the backrest 210 more compact and reducing its overall thickness. The separator 232 separates each resistance rope 600 individually, preventing friction or entanglement between the resistance ropes during use and ensuring the resistance ropes 600 remain in a relatively fixed position. The resistance rope limiting seat 230 effectively constrains the position of the resistance rope 600, preventing it from swaying or shifting due to movement of the backrest 210 or external forces, further optimizing the spatial layout inside the backrest 210.

[0069] In some embodiments, such as Figures 5-8 as well as Figures 11-13As shown, a first limiting plate 241 and a second limiting plate 242 are installed on the inner side of the backrest 210; the first limiting plate 241 has a plurality of first openings 2411, the opening ends of the first openings 2411 facing the backrest 210; the second limiting plate 242 has a plurality of second openings 2421, the opening ends of the second openings 2421 facing away from the backrest 210; the first limiting plate 241 and the second limiting plate 242 are stacked and connected to form a limiting component 240, and the limiting component 240 is connected to the backrest 210. The inner surfaces of the 0 are spaced apart to allow the resistance rope 600 to pass through. Multiple first openings 2411 correspond one-to-one with multiple second openings 2421. Each first opening 2411 and the corresponding second opening 2421 form a rope passage hole 243, and the rope passage hole 243 corresponds one-to-one with the resistance rope 600. The limiting component 240 is located between the guide member 250 and the force transmission seat 400. After the end of each resistance rope 600 passes around the guide member 250, it passes through the corresponding rope passage hole 243 and connects to the force transmission seat 400.

[0070] In the above embodiment, the limiting component 240, composed of the first limiting plate 241 and the second limiting plate 242, separates and limits the rope portion located between the guide member 250 and the force transmission seat 400. Each resistance rope 600 passes through an independent rope hole 243 to achieve separation between them, which can effectively prevent the resistance ropes 600 from contacting or rubbing against each other after passing around the guide member 250. During use, the resistance ropes 600 can always be kept within the predetermined path to ensure the stability and uniformity of resistance transmission.

[0071] Furthermore, the first opening 2411 on the first limiting plate 241 and the second opening 2421 on the second limiting plate 242 respectively limit the resistance rope 600 from two directions. This design allows for the disassembly and installation of the limiting component 240 without disassembling the resistance rope 600, simplifying the maintenance and installation process. The first limiting plate 241 and the second limiting plate 242 can be fastened together with bolts.

[0072] It is understandable that when the exercise bench uses a combination of motor 810 and resistance rope 600, and there are only two resistance ropes 600, the resistance ropes 600 can be arranged far apart on both sides of the transmission rope 820 connecting the motor 810, and there will be no situation where the resistance ropes 600 come close to each other and come into contact or rub against each other. Therefore, the aforementioned resistance rope limit seat 230 and limit component 240 do not need to be provided.

[0073] In some embodiments, such as Figures 1-4As shown, a support rod 120 is provided on the base 110, and a support seat 130 is fixed on the support rod 120; two backrest 210 brackets are fixedly installed on the inner surface of the backrest 210. The two backrest 210 brackets are located on both sides of the multiple resistance ropes 600 and extend from the first end 211 of the backrest 210 towards the second end 212 of the backrest 210. The ends of the two backrest 210 brackets near the first end 211 of the backrest 210 are hinged to the support seat 130.

[0074] In the above embodiment, a backrest 210 bracket is provided on the inner side of the backrest 210 to support the backrest 210. Moreover, the backrest 210 bracket can serve as the mounting base for various components on the inner side of the backrest 210. For example, components such as the resistance rope limiting seat 230, the guide 250, and the first limiting plate 241 and / or the second limiting plate 242 can be connected to the backrest 210 bracket and then installed on the inner side of the backrest 210. By means of the hinge between the backrest 210 bracket and the support seat 130, a rotatable connection between the backrest 210 and the base 110 is realized.

[0075] In some embodiments, such as Figure 7 As shown, the guide 250 is a steering rod 251 connected between the two backrest 210 supports. The ends of multiple resistance ropes 600 are wrapped around the outer periphery of the steering rod 251 and connected in the opposite direction to the force transmission seat 400. The steering rod 251 provides a fulcrum for the resistance ropes 600, so that the resistance ropes 600 can be kept taut, realizing the method of arranging the resistance ropes 600 as a whole on the inner side of the backrest 210.

[0076] In other embodiments, such as Figure 15 and Figure 16 As shown, in the fitness bench using a motor 810 and resistance ropes 600, there are only two resistance ropes 600. These two resistance ropes 600 are respectively located near the two backrest 210 supports. The guide 250 consists of swivel wheels 252 mounted on the two backrest 210 supports. The ends of the resistance ropes 600 pass around the swivel wheels 252 and connect in the opposite direction to the force transmission seat 400. In this embodiment, since there are only two resistance ropes 600, the guide 250 can be a swivel wheel 252 corresponding to each resistance rope 600. The swivel wheels 252 can be circumferentially fixed or rotate; this application does not impose any limitations.

[0077] In some embodiments, such as Figures 3-4 as well as Figures 14-21As shown, a connecting beam 270 is provided on the inner side of the backrest 210. The connecting beam 270 connects two backrest 210 supports and forms a clearance space between itself and the backrest 210 supports for the force transmission seat 400 to pass through, thus avoiding interference with the movement of the force transmission seat 400. A first adjusting bracket 280 is installed on the connecting beam 270. The first adjusting bracket 280 is an arc-shaped structure with a point on the rotation axis of the backrest 210 support as the center and located in a vertical plane. Multiple first adjusting holes 281 are spaced apart on the first adjusting bracket 280.

[0078] A first through hole 121 is formed on the support rod 120, and a first positioning member 140 is inserted into the support rod 120, with one end of the first positioning member 140 extending into the first through hole 121; the base 110 is hollow inside, and a first insertion hole 111 is formed on the upper surface of the base 110; the first through hole 121 and the first insertion hole 111 are located on the arc where the first adjusting bracket 280 is located, and the end of the first adjusting bracket 280 away from the connecting beam 270 passes through the first through hole 121 and is inserted into the first insertion hole 111.

[0079] In the above embodiment, during the rotational stroke of the first adjusting bracket 280 as it moves with the backrest 210, the first positioning member 140 extends into the first through hole 121 and is inserted into the first adjusting hole 281 corresponding to the positioning angle of the backrest 210, thereby achieving the positioning of the angle of the backrest 210. Figures 14-21 As shown. With the aid of the first adjustment bracket 280, the backrest 210 can be quickly fixed at multiple preset angles by inserting the first positioning member 140 into different first adjustment holes 281, providing users with flexible angle selection and meeting the needs of different users in different training scenarios. During the angle adjustment of the backrest 210, the hollow base 110 provides space for the movement of the first adjustment bracket 280, allowing the arc of the first adjustment bracket 280 to have a longer arc length, increasing the range of angle adjustment. The number and position of the first adjustment holes 281 on the first adjustment bracket 280 are set according to the angle adjustment range of the backrest 210.

[0080] In some embodiments, such as Figures 1-3 and Figures 14-21 As shown, the fitness bench also includes a seat cushion 310 mounted on the base 110. The seat cushion 310 includes a first end 311 adjacent to the backrest 210 and a second end 312 away from the backrest 210. The side of the seat cushion 310 facing the base 110 is the inner side of the seat cushion 310. A seat cushion 310 bracket is fixedly mounted on the inner surface of the seat cushion 310. The end of the seat cushion 310 bracket near the backrest 210 is hinged to the support base 130.

[0081] A second adjustment bracket 330 is installed on the seat cushion 310 bracket. The second adjustment bracket 330 is an arc-shaped structure with a point on the pivot of the seat cushion 310 bracket as the center and located in a vertical plane. Multiple second adjustment holes 331 are provided on the second adjustment bracket 330 at intervals.

[0082] A second through hole 122 is formed on the support rod 120, and a second positioning member 150 is inserted into the support rod 120. One end of the second positioning member 150 extends into the second through hole 122. A second insertion hole 112 is formed on the upper surface of the base 110. The second through hole 122 and the second insertion hole 112 are located on the arc where the second adjusting bracket 330 is located. The end of the second adjusting bracket 330 away from the seat cushion 310 bracket passes through the second through hole 122 and is inserted into the second insertion hole 112.

[0083] In the above embodiment, the seat cushion 310 and backrest 210 are located on the base 110, together forming the seat surface of the fitness bench. The seat cushion 310 is provided with a second adjustment bracket 330. During the rotational stroke of the second adjustment bracket 330 as the seat cushion 310 moves, the second positioning member 150 extends into the second through hole 122 and is inserted into the second adjustment hole 331 corresponding to the positioning angle of the seat cushion 310, thereby achieving the positioning of the angle of the seat cushion 310. Figures 14-21 As shown. With the aid of the second adjustment bracket 330, the second positioning member 150 can be inserted into different second adjustment holes 331, quickly fixing the seat cushion 310 at multiple preset angles, providing users with flexible angle selection and meeting the needs of different users in different training scenarios. During the angle adjustment of the backrest 210, the hollow base 110 provides space for the movement of the first adjustment bracket 280. The number and position of the second adjustment holes 331 on the second adjustment bracket 330 are set according to the angle adjustment range of the backrest 210.

[0084] In some embodiments, the first positioning member 140 and the second positioning member 150 may be implemented using a rod-like structure, such as a pin.

[0085] Both the seat cushion 310 and the backrest 210 are angle-adjustable relative to the base 110. Users can adjust the angles of the seat cushion 310 and the backrest 210 according to different training needs, thereby creating a variety of training scenarios. This diverse angle adjustment not only meets the personalized needs of different users, but also enhances the targeting and effectiveness of training, enabling the fitness equipment to adapt to a wider range of training goals and body parts, and improving the product's flexibility.

[0086] like Figure 18 and Figure 20As shown, the centers of the arcs containing the first adjustment bracket 280 and the second adjustment bracket 330 are the same. To avoid interference between the first adjustment bracket 280 and the second adjustment bracket 330 inside the base during rotation, the radii of the arcs containing the first adjustment bracket 280 and the second adjustment bracket 330 are different, and they are misaligned to avoid collisions that would affect angle adjustment.

[0087] In some embodiments, two bird arms 910 are provided on the inner side of the backrest 210 near the second end 212 of the backrest 210. One end of each bird arm 910 is rotatably connected to the inner surface of the backrest 210. The bird arm 910 is a hollow tubular structure, and the two force-applying ends 510 of the pull rope 500 pass through the bird arm 910 and extend outward. An angle adjustment mechanism is provided at the connection between the bird arm 910 and the backrest 210. The angle adjustment mechanism can position the bird arm 910 at different angles to adjust the opening angle of the bird arm 910.

[0088] In some embodiments, such as Figure 5 As shown, the angle adjustment mechanism includes an angle adjustment seat 920 disposed on the inner surface of the backrest 210. Multiple positioning holes 921 are formed on the angle adjustment seat 920, each positioning hole 921 corresponding to a different opening angle of the bird arm 910. A positioning pin 930 passes through the bird arm 910 and is inserted into the corresponding positioning hole 921 to achieve positioning of the bird arm 910. This embodiment is only for illustrative purposes; those skilled in the art can use other methods to achieve angle adjustment, and this application does not impose any limitations.

[0089] The force-applying end 510 of the pull rope 500 can be limited by a structure such as a fixing sleeve that cooperates with the end of the fly arm 910, so that the force-applying end 510 of the pull rope 500 can only be pulled out of the fly arm 910 and cannot retract into the fly arm 910, thus preventing the end of the pull rope 500 from entering the fly arm 910 and being unable to apply external force for training. The specific limiting method can be referred to the prior art, and will not be described in detail in this application.

[0090] In some embodiments, the exercise bench includes a flat bench state and a backrest 210 open state; such as Figure 17 and Figure 18 As shown, in the flat bench position, the backrest 210 and seat cushion 310 are positioned in a horizontal state; as Figure 3 , Figure 14 and Figure 21 As shown, when the backrest 210 is in the open state, the backrest 210 is positioned at an angle such that the second end 212 of the backrest 210 is higher than the first end 211.

[0091] When the exercise bench is in its flat position, the seat cushion 310 and backrest 210 can be used as a single unit as the bench surface. Alternatively, the stable support plane formed by the seat cushion 310 and backrest 210 can be used for various basic exercises, or the fly arm 910 can be opened for corresponding strength training. When the backrest 210 is open, it is positioned so that the second end 212 of the backrest 210 is higher than the first end 211. In this state, the backrest 210 is in an upward tilted open position, allowing the user to sit on the seat cushion 310 and lean against the backrest 210 to perform various upper limb or back strength training exercises. During the training process, the backrest 210 provides support for the user's back.

[0092] In some embodiments, the upper surfaces of the support rod 120 and the base 110 are inclined at a lower height from the seat cushion 310 toward the backrest 210; such as Figure 19 and Figure 20 As shown, the fitness bench also includes a negative angle state. In the negative angle state, the backrest 210 is positioned at an angle in which the second end 212 of the backrest 210 is lower than the first end 211 of the backrest 210, and the seat cushion 310 is positioned at an angle in which the second end 312 of the seat cushion 310 is higher than the first end 311 of the seat cushion 310, and the backrest 210 and the seat cushion 310 are located on the same plane.

[0093] In the above embodiment, the upper surfaces of the support rod 120 and the base 110 are designed to be inclined downwards from the seat cushion 310 towards the backrest 210, so that the backrest 210 can be rotated to a state where the second end 212 of the backrest 210 is lower than the first end 211 of the backrest 210. In this state, the backrest 210 is inclined downwards; the second end 312 of the seat cushion 310 is inclined upwards, and the seat cushion 310 and the backrest 210 are on the same plane, forming a negative angle state of the fitness bench. In the negative angle state, the seat cushion 310 and the backrest 210 together form an inclined plane, which allows users to perform different training according to different training needs, further expanding the fitness scenarios.

[0094] Since the angle adjustment of the seat cushion 310 and the backrest 210 is independent, in addition to the states described above, the exercise bench also includes other states where the seat cushion 310 and the backrest 210 are at various different angles. For example, in Figure 21 In the illustrated embodiment, the seat cushion 310 is positioned at an angle where the second end 312 is higher than the first end 311, while the backrest 210 is positioned in an upward-opening state relative to the base 110.

[0095] In some embodiments, the support rod 120 and the upper surface of the base 110 can be arranged parallel to each other, making the overall appearance of the fitness bench more aesthetically pleasing.

[0096] In some embodiments, such as Figure 15As shown, a protective cover 290 is also installed on the inner side of the backrest 210. The protective cover 290 is located on the outside of the resistance rope 600 and extends from the end of the resistance rope 600 connected to the backrest 210 to the connecting beam 270 to cover part of the resistance rope 600, thereby protecting the internal rope and preventing damage to the resistance rope 600 or interference with the resistance provided by external forces. At the same time, the protective cover 290 can also improve the aesthetics of the exercise bench and facilitate daily cleaning and maintenance.

[0097] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

Claims

1. A fitness bench, characterized in that, include: Base; A backrest is provided on the base. The backrest includes a first end and a second end opposite to each other. The first end is rotatably connected to the base, and the second end can move relative to the base to change the angle between the backrest and the base. The side of the backrest facing the base is the inner side of the backrest. The force transmission seat is spaced apart from the inner surface of the backrest; A pull rope connects to the force transmission seat, with both ends of the pull rope serving as force application ends. When an external force is applied to the two force application ends, the force transmission seat can move relative to the backrest. A guide member is installed on the inner side of the backrest and located on the side of the force transmission seat near the first end of the backrest; the guide member is spaced apart from the inner surface of the backrest; and A resistance rope is located on the inside of the backrest. One end of the resistance rope is close to the second end of the backrest and connected to the backrest. The other end of the resistance rope extends from the side of the force transmission seat close to the backrest toward the first end of the backrest, and then wraps around from the side of the guide facing the backrest to the other side away from the backrest before connecting to the force transmission seat.

2. The fitness bench according to claim 1, characterized in that, It also includes a motor, which is located inside the base, and the output end of the motor is connected to the force transmission base.

3. The fitness bench according to claim 1 or 2, characterized in that, The resistance rope is provided with multiple ropes, and the ends of the multiple resistance ropes near the second end of the backrest are installed on the backrest at intervals.

4. The fitness bench according to claim 3, characterized in that, A resistance rope limiting seat is installed on the inner side of the backrest, and the resistance rope limiting seat includes: The main body is located on the side of the plurality of resistance ropes opposite to the backrest and extends along the width direction of the backrest; and Two sets of partition components are respectively disposed on both sides of the main body in the length direction of the resistance rope. Each set of partition components includes multiple partitions arranged side by side along the width direction of the main body. Each partition extends from the main body to the inner surface of the backrest. A rope passage gap is formed between adjacent partitions. Each rope passage gap in the two sets of partition components is set accordingly. Each resistance rope passes through two corresponding rope gaps in the two sets of separating assemblies and is separated from the adjacent resistance rope by the separator.

5. The fitness bench according to claim 3, characterized in that, A first limiting plate and a second limiting plate are installed on the inner side of the backrest; the first limiting plate has a plurality of first openings, the opening ends of the first openings facing the backrest; the second limiting plate has a plurality of second openings, the opening ends of the second openings facing away from the backrest. The first limiting plate and the second limiting plate are stacked and connected to form a limiting component. The limiting component is spaced apart from the inner surface of the backrest to allow the resistance rope to pass through. A plurality of first openings correspond one-to-one with a plurality of second openings. Each first opening and the corresponding second opening form a rope passage hole. The rope passage hole corresponds one-to-one with the resistance rope. The limiting component is located between the guide and the force transmission seat. The end of each resistance rope passes around the guide and then passes through the corresponding rope hole to connect with the force transmission seat.

6. The fitness bench according to claim 1, characterized in that, A support rod is provided on the base, and a support seat is fixed on the support rod; Two backrest brackets are fixedly installed on the inner surface of the backrest. The two backrest brackets are located on both sides of the plurality of resistance ropes and extend from the first end of the backrest toward the second end of the backrest. The ends of the two backrest brackets near the first end of the backrest are hinged to the support base.

7. The fitness bench according to claim 6, characterized in that, A connecting beam is provided on the inner side of the backrest, the connecting beam connects the two backrest supports, and forms a clearance space between the connecting beam and the backrest supports for the force transmission seat to pass through. A first adjustment bracket is installed on the connecting beam. The first adjustment bracket is an arc-shaped structure with a point on the rotation axis of the backrest bracket as the center and located in a vertical plane. A plurality of first adjustment holes are provided on the first adjustment bracket at intervals. A first through hole is formed on the support rod, and a first positioning member is inserted into the support rod, with one end of the first positioning member extending into the first through hole; The base is hollow inside and a first insertion hole is formed on the upper surface of the base; The first through hole and the first insertion hole are located on the arc where the first adjusting bracket is located. The end of the first adjusting bracket away from the connecting beam passes through the first through hole and is inserted into the first insertion hole. During the rotational stroke of the first adjusting bracket as it moves with the backrest, the first positioning member extends into the first through hole and is inserted into the first adjusting hole corresponding to the positioning angle of the backrest.

8. The fitness bench according to claim 7, characterized in that, It also includes a seat cushion disposed on the base, the seat cushion having a first end adjacent to the backrest and a second end away from the backrest, the side of the seat cushion facing the base being the inner side of the seat cushion, a seat cushion bracket being fixedly installed on the inner surface of the seat cushion, and the end of the seat cushion bracket near the backrest being hinged to the support seat. A second adjustment bracket is installed on the seat cushion bracket. The second adjustment bracket is an arc-shaped structure with a point on the rotation axis of the seat cushion bracket as the center and located in a vertical plane. A plurality of second adjustment holes are provided on the second adjustment bracket at intervals. A second through hole is formed on the support rod, and a second positioning member is inserted into the support rod, with one end of the second positioning member extending into the second through hole; A second insertion hole is formed on the upper surface of the base; The second through hole and the second insertion hole are located on the arc where the second adjustment bracket is located. The end of the second adjustment bracket away from the seat cushion bracket passes through the second through hole and is inserted into the second insertion hole. During the rotational stroke of the second adjustment bracket as the seat cushion moves, the second positioning member extends into the second through hole and is inserted into the second adjustment hole corresponding to the positioning angle of the seat cushion.

9. The fitness bench according to claim 8, characterized in that, The fitness bench includes a flat bench state and a backrest open state; In the flat bench state, the backrest and the seat cushion are positioned in a horizontal state; In the backrest open state, the backrest is positioned at an angle such that the second end of the backrest is higher than the first end of the backrest.

10. The fitness bench according to claim 9, characterized in that, The upper surfaces of the support rod and the base are inclined at a height that decreases from the seat cushion towards the backrest. The fitness bench also includes a negative angle state, in which the backrest is positioned such that the second end of the backrest is lower than the first end of the backrest, the seat cushion is positioned such that the second end of the seat cushion is higher than the first end of the seat cushion, and the backrest and the seat cushion are located on the same plane.

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