Adjustable barbell rod for training

Abstract

The utility model provides an adjustable barbell rod for training, which comprises a rod body provided with a plurality of limiting grooves, and the limiting grooves are sequentially arranged along the axial direction of the rod body; the pull rope fixing assembly is used for being connected with a pull rope, the pull rope fixing assembly is arranged on the rod body in a sleeving mode and can move in the axial direction of the rod body, and a limiting piece is arranged on the pull rope fixing assembly; the limiting piece is configured to be capable of being matched with any limiting groove in a limiting mode so as to limit the axial position of the pull rope fixing assembly relative to the rod body. Compared with the prior art, according to the adjustable barbell rod for training, the position of the pull rope fixing assembly can be adjusted in the axial direction of the barbell rod, and the limiting piece can be conveniently and rapidly matched with the limiting groove in a limiting mode.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, specifically to an adjustable barbell bar for training. Background Technology

[0002] As living standards continue to improve, people are paying more and more attention to their health. Therefore, various fitness training devices are becoming increasingly common in our lives. Barbells, as fitness equipment, are frequently found in training grounds or gyms.

[0003] In digital strength training equipment, the barbell is often connected to a motorized resistance source via a cable, and the resistance provided by the motor is transmitted to the barbell through the cable. To facilitate barbell training and accommodate different exercises or different trainees, the barbell needs to be highly adjustable. However, existing barbells have poor adjustability, failing to meet the need for flexible use and thus failing to achieve the desired training effects. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and provide an adjustable barbell for training.

[0005] One embodiment of this utility model provides an adjustable barbell bar for training, comprising:

[0006] A rod body, wherein a plurality of limiting grooves are provided on the rod body, and the limiting grooves are arranged sequentially along the axial direction of the rod body;

[0007] A pull rope fixing assembly is provided for connecting to a pull rope. The pull rope fixing assembly is sleeved on the rod body and is movable along the axial direction of the rod body. The pull rope fixing assembly is provided with a limiting member, which is configured to engage with any of the limiting grooves to limit the axial position of the pull rope fixing assembly relative to the rod body.

[0008] In some optional embodiments, the pull cord fixing assembly is provided with a first movable channel extending toward the limiting groove, the limiting member slides with the first movable channel, the limiting member has a first state of moving along the first movable channel to a locked position and a second state of moving along the first movable channel to an unlocked position, in the first state the limiting member is at least partially located in the limiting groove, in the second state the limiting member is disengaged from the limiting groove.

[0009] In some optional embodiments, the pull rope fixing assembly is provided with a driving member and a second movable channel, the second movable channel is connected to the first movable channel, the driving member is slidably engaged with the second movable channel, and the driving member is provided with a driving part that is drivenly connected to the limiting member.

[0010] When the driving member moves along the second active channel, the driving part is used to drive the limiting member to move from the locked position to the unlocked position.

[0011] In some alternative embodiments, the pull rope fixing assembly has an adjusting sleeve for fitting onto the rod body, a first movable channel is arranged in the radial direction of the adjusting sleeve, a second movable channel is arranged in the axial direction of the adjusting sleeve, the driving part is arranged obliquely relative to the extension direction of the first movable channel, and at least a portion of the driving member protrudes from the outer end face of the adjusting sleeve.

[0012] In some alternative embodiments, an elastic element connected to the limiting member is provided in the first active channel, the elastic element being used to apply a spring force to the limiting member to move toward the locked position.

[0013] In some alternative embodiments, the drive member is provided with a positioning groove extending along the extension direction of the second active channel, and a portion of the limiting member is movably inserted into the positioning groove.

[0014] In some optional embodiments, the drive member is provided with a plurality of anti-detachment parts, the anti-detachment parts and the drive member are arranged sequentially along the extension direction of the second active channel, and in the first state where the limiting member is in the locked position, a portion of the limiting member is located between the anti-detachment parts and the drive member.

[0015] In some alternative embodiments, at least one side of the limiting member is provided with a travel limiting groove extending along the extension direction of the first active channel, and a portion of the driving member is located within the travel limiting groove.

[0016] In some optional embodiments, an elastic element connected to the limiting member is provided in the first active channel, the elastic element being used to apply a spring force to the limiting member toward the locking position;

[0017] The first active channel has a port at one end facing the limiting groove;

[0018] One end of the limiting member is detachably provided with a limiting end, at least a portion of the limiting end protrudes from the outer periphery of the limiting member, the elastic member is sleeved on the outer periphery of the limiting member, and the two ends of the elastic member are respectively connected to the limiting end and the driving member.

[0019] When the limiting member is in the locked position, at least a portion of the limiting end engages with the limiting groove.

[0020] In some alternative embodiments, the pull rope fixing assembly includes an adjusting sleeve, a pull rope connector, and a fixing sleeve, wherein the adjusting sleeve is fitted onto the rod body;

[0021] The limiting member is disposed on the adjusting sleeve, and the limiting member is configured to engage with any of the limiting grooves to limit the axial position of the adjusting sleeve relative to the rod.

[0022] The adjusting sleeve or the fixing sleeve is provided with a connecting shaft, and the pull rope connector is provided with a shaft hole. The connecting shaft is connected to the shaft hole. The fixing sleeve and the adjusting sleeve are connected through the connecting shaft. The adjusting sleeve and the fixing sleeve cooperate to restrict the axial position of the pull rope connector relative to the connecting shaft.

[0023] In some alternative embodiments, the limiting groove surrounds the rod body circumferentially, and the limiting member is configured to rotate along the limiting groove in a limiting engagement state.

[0024] Compared to existing technologies, the adjustable barbell bar for training of this invention allows for adjustment of the position of the cable fixing component along the axial direction of the barbell bar, and the limiting component can easily and quickly engage with the limiting groove. Compared to shaft-hole fitting, the limiting groove in this application provides a larger accommodating space when the cable fixing component is moved to the appropriate position, thus facilitating the quick insertion of the limiting component into the limiting groove and achieving a limiting fit, resulting in better operational convenience and flexibility.

[0025] To provide a clearer understanding of this invention, the specific embodiments of the invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an adjustable barbell for training according to one embodiment of the present invention;

[0027] Figure 2 This is a cross-sectional view of an adjustable barbell for training according to an embodiment of the present invention.

[0028] Figure 3 for Figure 2 The enlarged view at point A is shown below;

[0029] Figure 4 This is a cross-sectional view of the pull rope fixing assembly according to an embodiment of the present invention, showing the hidden part structure and the limiting member in the locked position;

[0030] Figure 5 This is a cross-sectional view of the hidden part of the pull rope fixing assembly according to an embodiment of the present invention, with the limiting member in the unlocked position;

[0031] Figure 6 This is a schematic diagram of the structure of a drive component according to an embodiment of the present invention;

[0032] Figure 7 This is an exploded view of a limiting member according to an embodiment of the present invention;

[0033] Figure 8 This is an exploded view of the concealed portion of the pull rope fixing assembly according to an embodiment of the present invention;

[0034] Figure 9 This is a schematic diagram of the structure of a pull rope fixing assembly according to an embodiment of the present invention;

[0035] Figure 10 This is an exploded view of a rope fixing assembly according to an embodiment of the present invention.

[0036] Explanation of reference numerals in the attached figures:

[0037] 10. Rod body; 11. Limiting groove; 12. Grip part; 13. Adjusting part; 20. Pull rope fixing assembly; 21. Limiting component; 211. Stroke limiting groove; 212. Limiting end; 213. Screw; 22. First moving channel; 221. Port; 222. Clearance opening; 23. Elastic component; 24. Driving component; 241. Driving part; 242. Positioning groove; 243. Anti-detachment part; 25. Second moving channel; 26. Adjusting sleeve; 261. Connecting shaft; 262. Limiting part; 27. Pull rope connector; 271. Shaft hole; 28. Fixing sleeve. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. In addition, unless otherwise stated, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 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.

[0040] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] In the description of this utility model, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. 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.

[0042] The existing tension fixing component is equipped with a limit shaft and a socket on the barbell bar body. The limit shaft and the socket are fixed and limited by the fit between the shaft and the socket. The fit between the limit shaft and the socket has a low fault tolerance and requires extremely precise alignment. As a result, in actual operation, the operability is obviously poor and the adjustment is inflexible.

[0043] The adjustable barbell for training of this invention allows for adjustment of the position of the cable fixing component along the axial direction of the barbell, and the limiting component can easily and quickly engage with the limiting groove. Compared to a shaft-hole fit, the limiting groove in this application provides a larger accommodating space when the cable fixing component is moved to the appropriate position, thus facilitating the quick insertion of the limiting component into the limiting groove to achieve a limiting fit. This results in better operational convenience and flexibility, and a higher tolerance for error.

[0044] Please see Figure 1 One embodiment of this utility model provides an adjustable barbell for training, including: a bar body 10 and a rope fixing assembly 20.

[0045] Multiple limiting grooves 11 are provided on the rod body 10, and the limiting grooves 11 are arranged sequentially along the axial direction of the rod body 10;

[0046] Please see Figures 1 to 3 The rope fixing assembly 20 is used to connect with the rope. The rope fixing assembly 20 is sleeved on the rod 10 and can move along the axial direction of the rod 10. The rope fixing assembly 20 is provided with a limiting member 21. The limiting member 21 is configured to cooperate with any limiting groove 11 to limit the axial position of the rope fixing assembly 20 relative to the rod 10. The position of the rope fixing assembly 20 is adjusted along the axial direction of the rod 10 according to the rope outlet position of the training device. Then, the limiting member 21 is cooperated with the corresponding limiting groove 11 to limit the rope fixing assembly 20 in a suitable position to facilitate different training movements or different training groups.

[0047] Please see Figures 4 to 5 The switching method of the limiting member 21 and the limiting groove 11 can be selected according to the actual needs. For example, a connecting groove is provided between adjacent limiting grooves 11, and a movable blocking member is provided in the connecting groove. The blocking member can restrict the limiting member 21 from moving between adjacent limiting grooves 11. By removing the blocking member, the limiting member 21 can move through the connecting groove to other limiting grooves 11, thereby realizing the limiting member 21 and the limiting groove 11.

[0048] In this embodiment, the pull rope fixing assembly 20 is provided with a first movable channel 22 extending toward the limiting groove 11. The limiting member 21 is slidably engaged with the first movable channel 22. The limiting member 21 has a first state of moving along the first movable channel 22 to the locked position and a second state of moving along the first movable channel 22 to the unlocked position. In the first state, the limiting member 21 is at least partially located in the limiting groove 11, thereby limiting the engagement between the limiting member 21 and the limiting groove 11. In the second state, the limiting member 21 is disengaged from the limiting groove 11. At this time, the pull rope fixing assembly 20 can be adjusted along the axial direction of the rod 10.

[0049] Please see Figures 4 to 5The way the limiting member 21 moves along the first movable channel 22 can be selected according to actual needs. For example, a part of the limiting member 21 extends outside the first movable channel 22, and the user can directly operate the part of the limiting member 21 outside the first movable channel 22. In some optional embodiments, the pull rope fixing assembly 20 is provided with a driving member 24 and a second movable channel 25. The second movable channel 25 is connected to the side of the first movable channel 22. The second movable channel 25 and the first movable channel 22 are not parallel to each other. In this embodiment, the second movable channel 25 and the first movable channel 22 are perpendicular to each other. The driving member 24 is slidably engaged with the second active channel 25. At least a portion of the driving member 24 is located outside the second active channel 25. The driving member 24 is provided with a driving part 241 that is drivenly connected to the limiting member 21. The driving part 241 is arranged at an angle relative to the extension direction of the first active channel 22. When the driving member 24 moves along the second active channel 25, the driving part 241 is used to drive the limiting member 21 from the locked position to the unlocked position, thereby realizing the switching of the limiting member 21 from the first state to the second state. The user can press the driving member 24 to move the driving member 24 into the second active channel 25.

[0050] It should be noted that the relative positional relationship between the second active channel 25 and the first active channel 22 is not specifically limited in this application. Their relative positional relationship only needs to satisfy the requirement that the driving member 24 can drive the limiting member 21 to move between the locked position and the unlocked position. Furthermore, the specific structure of the driving unit 241 is not specifically limited; the specific structure of the driving unit only needs to satisfy the requirement that it can drive the limiting member 21 to move.

[0051] Please see Figures 4 to 6 In some optional embodiments, the driving member 24 is provided with a positioning groove 242 extending along the extension direction of the second active channel 25, and a portion of the limiting member 21 is movably inserted into the positioning groove 242, so that when the driving member 24 moves along the second active channel 25, the limiting member 21 is not easy to sway relative to the extension direction of the second active channel 25, thereby improving structural stability and enabling the driving part 241 to slide stably with the limiting member 21.

[0052] Please see Figures 4 to 6In some optional embodiments, the drive member 24 is provided with a plurality of anti-detachment parts 243, the anti-detachment parts 243 and the drive member 241 are arranged sequentially along the extension direction of the second active channel 25, and a portion of the limiting member 21 is located between the anti-detachment parts 243 and the drive member 241. In the first state where the limiting member 21 is in the locked position, a portion of the limiting member 21 is located between the anti-detachment parts 243 and the drive member 241. The anti-detachment parts 243 and the limiting member 21 are in a limiting cooperation, so that the movement range of the drive member 24 in the extension direction of the second active channel 25 is restricted, and the drive member 24 is not easy to detach from the second active channel 25.

[0053] Please see Figure 4 , Figure 5 and Figure 7 In some optional embodiments, at least one side of the limiting member 21 is provided with a stroke limiting groove 211 extending along the extension direction of the first active channel 22, and part of the driving member 24 is located in the stroke limiting groove 211. The stroke limiting groove 211 makes it difficult for the limiting member 21 to sway in a direction perpendicular to the extension direction of the first active channel 22 when it moves along the first active channel 22, thereby improving structural stability. In addition, the stroke limiting groove 211 and the driving member 24 cooperate to limit the movement range of the limiting member 21 in the first active channel 22, thereby preventing the limiting member 21 from disengaging from the first active channel 22.

[0054] Based on the travel limiting groove 211 and the drive member 24 working together to limit the movement range of the limiting member 21, the limiting member 21, the anti-detachment part 243 and the drive part 241 work together to limit the movement range of the drive member 24, so that the limiting member 21 and the drive member 24 restrict each other, making it difficult for the limiting member 21 and the drive member 24 to detach, while simplifying the structure.

[0055] In this embodiment, the limit member 21 is provided with travel limiting grooves 211 on both sides, and the part of the drive member 24 located on both sides of the positioning groove 242 extends into the travel limiting grooves 211.

[0056] Please see Figures 4 to 5 In some optional embodiments, an elastic member 23 connected to the limiting member 21 is provided in the first active channel 22. The elastic member 23 generates elastic force and applies elastic force to the limiting member 21 to move toward the locked position. The elastic member 23 can keep the limiting member 21 in the locked position, thereby facilitating the limiting engagement between the limiting member 21 and the limiting groove 11, and thus keeping the limiting member 21 in the first state. Moreover, when the limiting member 21 is moved to the unlocked position by external force and then the external force is released, the limiting member 21 can be driven to reset to the locked position by the elastic member 23.

[0057] In this embodiment, when the driving member 24 moves within the second movable channel 25, the driving part 241 drives the limiting member 21 to move in the direction from the locked position to the unlocked position. The user can press the driving member 24 to move it into the second movable channel 25. As the limiting member 21 moves to the unlocked position, the elastic member 23 deforms. After the user releases the driving member 24, the elastic member 23 drives the limiting member 21 back to the locked position, and the elastic member 23 moves along the driving part 241 and drives the driving member 24 to move out of the second movable channel 25, so that the driving member 24 returns to its original position. Of course, in other embodiments, if the driving member 24 is not provided, the elastic member 23 can be connected to the limiting member 21 and the inner wall of the first movable channel 22 respectively.

[0058] In addition, in this embodiment, due to the design of the elastic member 23, the elastic force of the elastic member 23 causes the limiting member 21 to press against the driving member 24. The driving member 24 is restricted by the cooperation of the limiting member 21, the anti-detachment part 243 and the driving part 241, which restricts the range of movement of the driving member 24 in the extension direction of the second active channel 25, and the driving member 24 is not easy to detach from the second active channel 25.

[0059] Please see Figure 5 and Figure 8In some optional embodiments, the first active channel 22 has a port 221 at one end facing the limiting groove 11; one end of the limiting member 21 is detachably provided with a limiting end 212, which protrudes from the outer periphery of the limiting member 21, and the limiting member 21 is sleeved on the outer periphery of the limiting member 21. The spring is connected to the limiting end 212 and the driving member 24 respectively; when the limiting member 21 is in the locked position, the limiting end 212 is limited and engaged with the limiting groove 11. In this embodiment, the elastic member 23 is a spring, which is sleeved on the outer periphery of the limiting member 21. Of course, in other embodiments, the elastic member 23 may also adopt other suitable structures and be sleeved on the outer periphery of the limiting member 21. In this embodiment, the limiting member 21 is first inserted into the first movable channel 22 through the clearance mounting port, and the limiting member 21 is in the unlocked state. Then, the driving member 24 is extended into the second movable channel 25, so that the limiting member 21 extends into the positioning groove 242 at the same time as the driving member 24 extends into the travel limiting groove 211. Then, the spring is extended into the first movable channel 22, and the spring abuts against the driving member 24, connecting the limiting end 212 with the end of the limiting member 21, so that the limiting end 212 abuts against the spring. Under the elastic force of the spring, the limiting member 21 is driven by the limiting end 212 to press the driving member 24, so that part of the limiting member 21 is restricted between the anti-detachment part 243 and the driving part 241, thus completing the assembly. In some alternative embodiments, the end of the first active channel 22 away from the limiting groove 11 is formed with a relief opening 222, so that when the limiting member 21 is in the unlocked position, the limiting member 21 extends out from the relief opening 222, thereby reducing the thickness of the pull rope fixing assembly 20 while avoiding affecting the movement of the limiting member 21.

[0060] The limiting end 212 can be detachably engaged with the limiting member 21 through threaded locking parts, pins, snap-fit ​​structures, etc. In this embodiment, the limiting end 212 is locked onto the limiting member 21 by screws 213.

[0061] In some alternative embodiments, the pull rope fixing assembly 20 has an adjusting sleeve 26 for fitting onto the rod 10. A first movable channel 22 is arranged in the radial direction of the adjusting sleeve 26, and a second movable channel 25 is arranged in the axial direction of the adjusting sleeve 26. The driving part 241 is arranged obliquely relative to the extension direction of the first movable channel 22. At least a portion of the driving member 24 protrudes from the outer end face of the adjusting sleeve 26, thereby facilitating the placement of the driving member 24 in a suitable position for user operation. Moreover, by changing the moving direction of the driving member 24, the moving direction of the driving member 24 can meet practical needs. This is because if the driving member 24 moves radially along the rod 10, it is easy to cause misoperation or accidental unlocking due to the driving member 24 accidentally hitting other objects.

[0062] Please see Figure 9 and Figure 10The structure of the pull rope fixing assembly 20 can be selected according to actual needs. For example, in some optional embodiments, the pull rope fixing assembly 20 includes an adjusting sleeve 26, a pull rope connector 27, and a fixing sleeve 28. The adjusting sleeve 26 is sleeved on the rod body 10, and a limiting member 21 is disposed on the adjusting sleeve 26. The limiting member 21 is configured to cooperate with any limiting groove 11 to limit the axial position of the adjusting sleeve 26 relative to the rod body 10. In this embodiment, the first movable channel 22, the second movable channel 25, the driving member 24, and the elastic member 23 are all disposed on the adjusting sleeve 26.

[0063] A connecting shaft 261 is provided on the adjusting sleeve 26 or the fixed sleeve 28, and a shaft hole 271 is provided on the pull rope connector 27. The connecting shaft 261 is connected to the shaft hole 271. The fixed sleeve 28 and the adjusting sleeve 26 are connected through the connecting shaft 261. The adjusting sleeve 26 and the fixed sleeve 28 cooperate to restrict the axial position of the pull rope connector 27 relative to the connecting shaft 261. This design allows the pull rope connector to be fixed between the adjusting sleeve 26 and the fixed sleeve 28. The pull rope connector 27 is used to connect the pull rope.

[0064] In this embodiment, the connecting shaft 261 is mounted on the adjusting sleeve 26. (See also...) Figure 9 and Figure 10 To facilitate the assembly of the adjusting sleeve 26, the fixing sleeve 28, and the pull rope connector 27, in some optional embodiments, the adjusting sleeve 26 is provided with a limiting part 262, the fixing sleeve 28 is connected to the connecting shaft 261, and the fixing sleeve 28 is located on the side of the pull rope connector 27 away from the limiting part 262. The limiting part 262 and the fixing sleeve 28 cooperate to limit the axial position of the pull rope connector 27 relative to the connecting shaft 261. The fixing sleeve 28 restricts the pull rope connector 27 to the connecting shaft 261, facilitating production assembly. In this embodiment, the fixing sleeve 28 is detachably connected to the connecting shaft 261 by a threaded part. Of course, the fixing sleeve 28 can also be detachably connected to the connecting shaft 261 by a snap-fit ​​structure or a pin structure, and is not limited to this example.

[0065] Please see Figure 1 , Figure 9 and Figure 10One or two draw rope fixing components 20 can be provided on the bar body 10. In one embodiment, multiple limiting grooves 11 and one draw rope fixing component 20 can be provided only at one end of the adjustable barbell bar for training, while one end of the adjustable barbell bar for training is a fixed draw rope connection structure. By adjusting the draw rope fixing component 20, the distance between the draw rope fixing component 20 and the draw rope connection structure can be adapted to the distance between the two rope exit positions. In this embodiment, the adjustable barbell bar for training includes two draw rope fixing components 20; a gripping part 12 and two adjusting parts 13 are formed on the bar body 10, wherein one adjusting part 13, the gripping part 12 and the other adjusting part 13 are arranged sequentially along the axial direction of the bar body 10, and multiple limiting grooves 11 are provided on the adjusting part 13. The two draw rope fixing components 20 are respectively sleeved on the adjusting part 13, and the limiting member 21 on the draw rope fixing component 20 is limited and engaged with any limiting groove 11 on the corresponding adjusting part 13. By adjusting the position of the two rope fixing components 20 according to the corresponding rope exit position, it is beneficial to make the gripping part 12 be in the middle of the two rope exit positions.

[0066] Please see Figure 1 In some optional embodiments, the limiting groove 11 surrounds the rod 10 circumferentially, and the limiting member 21 is configured to rotate along the limiting groove 11 in a limiting engagement state. In this embodiment, the limiting portion 262 of the limiting member 21 can move circumferentially along the limiting groove 11. The limiting member 21 is configured to rotate along the limiting groove 11, allowing the rod 10 and the rope fixing assembly 20 to rotate adaptively relative to each other. This facilitates different training movements by the user. Since the end of the rope connected to the resistance source is relatively fixed, while the other end of the rope connected to the rod 10 changes with the range of motion of the user's training movements, the rod 10 and the rope fixing assembly 20 are configured to rotate adaptively relative to each other. This allows the rope to smoothly transmit force to the rod 10, and the rod 10 is not constrained by the rope fixing assembly 20 during operation, resulting in a better training experience. On the other hand, the rod body 10 and the rope fixing assembly 20 are designed to rotate relative to each other, which greatly improves the flexibility of adjusting the position of the rope fixing assembly 20 on the rod body 10. The user only needs to operate the limiting member 21 to disengage from the limiting groove 11, then move the rope fixing assembly 20 to the appropriate position, and release the limiting member 21. The limiting member 21 can then be directly inserted into the annular limiting groove 11 for limiting engagement, eliminating the need for precise positioning and making the operation extremely convenient. Furthermore, in this application, the limiting groove 11 provides both axial limiting for the rope fixing assembly 20 and rotational freedom for the rope fixing assembly 20 relative to the rod body 10, greatly simplifying the product design.

[0067] Of course, to ensure that the operation of the rod 10 is not constrained by the rope fixing assembly 20, and is not limited to the rotational engagement of the rope fixing assembly 20 and the rod 10, please refer to [link to relevant documentation]. Figure 1 and Figure 10 In some optional embodiments, the pull rope connector 27 is rotatably engaged with the adjusting sleeve 26; and / or, the adjusting sleeve 26 is rotatably engaged with the rod body 10. Both the rotatable engagement of the pull rope connector 27 with the adjusting sleeve 26 and the rotatable engagement of the adjusting sleeve 26 with the rod body 10 allow the rod body 10 to adjust its angle relative to the pull rope connector 27, thereby ensuring that the operation of the rod body 10 is not constrained by the pull rope fixing assembly 20. In this embodiment, the rod body 10, the adjusting sleeve 26, and the pull rope connector 27 can rotate relative to each other in sequence. Additionally, in this embodiment, the adjusting sleeve 26 can be rotatably engaged with the shaft hole 271 of the pull rope connector 27 via the connecting shaft 261.

[0068] The adjustable barbell bar for training described above can be used in a training device, which includes: an adjustable barbell bar for training as described above.

[0069] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable barbell bar for training, characterized in that, include: A rod body, wherein a plurality of limiting grooves are provided on the rod body, and the limiting grooves are arranged sequentially along the axial direction of the rod body; A pull rope fixing assembly is provided for connecting to a pull rope. The pull rope fixing assembly is sleeved on the rod body and is movable along the axial direction of the rod body. The pull rope fixing assembly is provided with a limiting member, which is configured to engage with any of the limiting grooves to limit the axial position of the pull rope fixing assembly relative to the rod body.

2. The adjustable barbell for training according to claim 1, characterized in that: The pull cord fixing assembly is provided with a first movable channel extending toward the limiting groove. The limiting member slides with the first movable channel. The limiting member has a first state of moving along the first movable channel to a locked position and a second state of moving along the first movable channel to an unlocked position. In the first state, the limiting member is at least partially located in the limiting groove. In the second state, the limiting member is disengaged from the limiting groove.

3. The adjustable barbell for training according to claim 2, characterized in that: The pull rope fixing assembly is provided with a driving component and a second movable channel, the second movable channel is connected to the first movable channel, the driving component is slidably engaged with the second movable channel, and the driving component is provided with a driving part that is drivenly connected to the limiting component. When the driving member moves along the second active channel, the driving part is used to drive the limiting member to move from the locked position to the unlocked position.

4. The adjustable barbell for training according to claim 3, characterized in that: The pull rope fixing assembly has an adjusting sleeve for being fitted onto the rod body. The first movable channel is arranged along the radial direction of the adjusting sleeve, and the second movable channel is arranged along the axial direction of the adjusting sleeve. The driving part is arranged obliquely relative to the extension direction of the first movable channel, and at least a portion of the driving member protrudes from the outer end face of the adjusting sleeve.

5. The adjustable barbell for training according to claim 2, characterized in that: The first active channel is provided with an elastic element connected to the limiting member, and the elastic element is used to apply a spring force to the limiting member to move toward the locking position.

6. The adjustable barbell for training according to claim 3, characterized in that: The driving component is provided with a positioning groove extending along the extension direction of the second active channel, and a portion of the limiting component is movably inserted into the positioning groove.

7. The adjustable barbell for training according to claim 3, characterized in that: The drive member is provided with a plurality of anti-detachment parts, and the anti-detachment parts and the drive member are arranged sequentially along the extension direction of the second active channel. In the first state where the limiting member is in the locked position, a portion of the limiting member is located between the anti-detachment parts and the drive member.

8. An adjustable barbell for training according to claim 3, characterized in that: At least one side of the limiting member is provided with a travel limiting groove extending along the extension direction of the first active channel, and a portion of the driving member is located within the travel limiting groove.

9. An adjustable barbell for training according to claim 3, characterized in that: The first active channel is provided with an elastic element connected to the limiting member, and the elastic element is used to apply a spring force to the limiting member to move toward the locking position; The first active channel has a port at one end facing the limiting groove; One end of the limiting member is detachably provided with a limiting end, at least a portion of the limiting end protrudes from the outer periphery of the limiting member, the elastic member is sleeved on the outer periphery of the limiting member, and the two ends of the elastic member are respectively connected to the limiting end and the driving member. When the limiting member is in the locked position, at least a portion of the limiting end engages with the limiting groove.

10. An adjustable barbell for training according to any one of claims 1 to 9, characterized in that: The pull rope fixing assembly includes an adjusting sleeve, a pull rope connector, and a fixing sleeve, with the adjusting sleeve fitted onto the rod body; The limiting member is disposed on the adjusting sleeve, and the limiting member is configured to engage with any of the limiting grooves to limit the axial position of the adjusting sleeve relative to the rod. The adjusting sleeve or the fixing sleeve is provided with a connecting shaft, and the pull rope connector is provided with a shaft hole. The connecting shaft is connected to the shaft hole. The fixing sleeve and the adjusting sleeve are connected through the connecting shaft. The adjusting sleeve and the fixing sleeve cooperate to restrict the axial position of the pull rope connector relative to the connecting shaft.

11. An adjustable barbell for training according to any one of claims 1 to 9, characterized in that: The limiting groove surrounds the rod body circumferentially, and the limiting member is configured to rotate along the limiting groove in a limiting engagement state.

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