Barbell capable of being connected with dumbbell and barbell assembly

Abstract

The utility model discloses a barbell capable of being connected with a dumbbell and a barbell assembly, and relates to the technical field of fitness equipment, the barbell is connected with the dumbbell through a connecting end, the function conversion of the barbell and the dumbbell is realized, and the utilization rate and the practicability of the fitness equipment are improved. The shell covers connected with the ends are connected through the opening and closing assemblies, the movable grip rotates to control opening and closing of the shell covers, and the dumbbell is convenient to assemble and disassemble. The movable grip design simplifies operation and improves loading and unloading efficiency. Meanwhile, a sleeve rod in the opening and closing assembly comprises a movable rod and a connecting rod, the connecting rod is provided with a clamping nut, the clamping nut is used for clamping the movable rod, the stability of the sleeve rod is enhanced, the movable rod can flexibly slide to adjust the position, and stable opening and closing during rotation are ensured. Due to the design of the clamping nut, the stability is enhanced, and the movable rod is prevented from falling off. After the dumbbell is clamped by the shell cover, the shell cover is locked by the opening and closing assembly, and safe and reliable use is ensured.

Description

[Technical Field]

[0002] This utility model relates to the field of fitness equipment technology, and in particular to a barbell and barbell assembly that can be connected to dumbbells. [Background Technology]

[0004] In the current fitness equipment market, barbells and dumbbells are usually designed as two separate machines, each requiring a certain amount of storage space. This design not only leads to wasted space but is also relatively expensive, as users need to purchase both machines separately. Therefore, a multi-functional barbell exists, consisting of a main barbell bar and multiple detachable dumbbells, enabling multiple training functions with both barbells and dumbbells on a single machine. Users only need to purchase one product to enjoy the dual benefits of barbell and dumbbell training. However, in existing multi-functional barbells, the connection structure between the barbell bar and dumbbells is complex, making it difficult for users to easily and quickly attach and detach dumbbells from the barbell bar. Furthermore, the safety of using multi-functional barbells cannot be guaranteed. [Utility Model Content]

[0006] To address the problem of inconvenient assembly and disassembly of existing multi-functional barbells, this utility model provides a barbell that can be connected to dumbbells. The barbell that can be connected to dumbbells includes a barbell bar and a connecting end. A connecting end is provided at each end of the barbell bar. The connecting end includes a first shell cover and a second shell cover. The connecting end is defined with an opening end and a rotating end. The first shell cover and the second shell cover are rotatably connected at the rotating end. The barbell bar is connected to the side of the second shell cover away from the first shell cover.

[0007] The connecting end also includes an opening and closing assembly located at the opening and closing end. The opening and closing assembly includes a movable handle and a sleeve. One end of the sleeve is rotatably connected to the second shell cover, and the movable handle is connected to the first shell cover. At the same time, the movable handle is connected to the end of the sleeve away from the second shell cover. The connecting end is provided with a clamping part, and the closed first shell cover and the second shell cover form a clamping part for placing dumbbells.

[0008] Preferably, the sleeve includes a movable rod and a connecting rod. A hook is provided on the second shell cover, and one end of the connecting rod is engaged with the hook. A first locking nut and a second locking nut are provided on the connecting rod. The connecting rod passes through both ends of the movable rod, and the first locking nut and the second locking nut clamp the movable rod. At the same time, the movable rod is rotatably connected to the movable handle.

[0009] Preferably, the opening and closing assembly further includes an adapter, which includes a first adapter segment and a second adapter segment connected together. The first adapter segment is fixedly connected to the outer wall of the first cover on the side away from the second cover. The second adapter segment is set at an angle to the first adapter segment and extends above the opening and closing end. The movable handle is rotatably connected to the second adapter segment.

[0010] Preferably, the movable handle is located on the side of the first cover away from the second cover, and when the first and second covers are closed, the movable handle is parallel to the first cover.

[0011] Preferably, the connecting end further includes a rotating shaft, which is located at the rotating end and passes through the first and second housing covers, and the clamping part is located between the rotating shaft and the opening and closing assembly.

[0012] Preferably, both the first and second shell covers are composed of a base plate and side plates disposed on opposite sides of the base plate. When the first and second shell covers are closed, a gap is formed between their base plates, and their side plates at least partially overlap.

[0013] Preferably, the side plates of the first and second shell covers are respectively provided with a first recess and a second recess, and when the first and second shell covers are closed, the first recess and the second recess are joined together to form a clamping part.

[0014] Preferably, the barbell bar can be a straight bar or a curved bar; when the barbell bar is a curved bar, the curved bar has a first bent segment and a second bent segment that are symmetrical about the midpoint of the curved bar.

[0015] Preferably, the bending angle of the first and second bending segments in the bent rod is set to 120-150 degrees.

[0016] To solve the above-mentioned technical problems, the present invention also provides a barbell assembly, which includes a barbell and dumbbells that can be connected to dumbbells, with the dumbbells clamped in the clamping part of the barbell.

[0017] Compared with the prior art, the barbell and barbell assembly that can be connected to dumbbells provided by this utility model have the following advantages:

[0018] 1. The barbell that can be connected to dumbbells provided by this utility model includes a barbell bar and a connecting end. By connecting dumbbells to the connecting end and using the barbell bar as a barbell, the function of barbell and dumbbell is converted, which improves the utilization rate and practicality of fitness equipment.

[0019] The first and second shell covers in the connecting end are rotatably connected at the rotating end of the connecting end, and an opening / closing assembly is provided at the opening / closing end of the connecting end. The opening / closing assembly is connected to the first and second shell covers respectively via a movable handle and a sleeve. Rotating the movable handle can cause the first shell cover to open and close relative to the second shell cover, thereby realizing the installation and removal of dumbbells between the first and second shell covers. The design of the movable handle makes operation simpler; users only need to rotate the movable handle to achieve the opening and closing action, without complicated operation steps, enabling faster and more convenient installation and removal of dumbbells from the barbell bar. The sleeve, as a bridge connecting the movable handle and the shell covers, ensures the stability and reliability of rotation. When installing or removing dumbbells, users can observe the position of the movable handle to determine the opening and closing state of the first and second shell covers, thereby accurately performing the installation and removal of dumbbells. The method of installing and removing dumbbells by rotating the movable handle also makes the barbell provided by this utility model more convenient to use.

[0020] 2. The sleeve provided by this utility model includes a movable rod and a connecting rod. A hook is provided on the second shell cover. One end of the connecting rod is engaged with the hook. The movable rod is sleeved on the connecting rod. At the same time, the movable rod is rotatably connected to the movable handle. The movable handle drives the connecting rod to rotate relative to the second shell cover through the movable rod.

[0021] Meanwhile, the connecting rod is equipped with a first locking nut and a second locking nut, which clamp the movable rod. This design makes the sleeve rod structure more stable, and the movable rod can slide flexibly on the connecting rod, facilitating position adjustment during the assembly of the connecting ends. Simultaneously, the movable rod is firmly fixed by the first and second locking nuts, ensuring that when the movable handle is rotated, the movable rod can stably drive the first cover relative to the second cover to open and close. The hook simplifies the connection process between the sleeve rod and the second cover; simply snap one end of the connecting rod onto the hook, greatly improving the ease of assembly.

[0022] Furthermore, the design of the first and second locking nuts not only enhances the stability of the bar structure but also makes the movable rod less likely to fall off during rotation and use. When a dumbbell is clamped between the first and second shell covers, the weight of the dumbbell causes the first shell cover to tend to open. The movable rod moves toward the first locking nut under the influence of the first shell cover, allowing the movable rod and the first locking nut to self-lock due to the dumbbell. At the same time, the movable rod drives the connecting rod to move toward the first shell cover, causing the end of the connecting rod to engage with the hook and self-lock with the hook, ensuring the safety and reliability of the barbell.

[0023] 3. The opening and closing assembly provided by this utility model also includes an adapter, which comprises a first adapter segment and a second adapter segment connected together. The first adapter segment is fixedly connected to the outer wall of the first shell cover on the side away from the second shell cover. The second adapter segment is angled relative to the first adapter segment and extends to the opening and closing end. The movable grip is rotatably connected to the second adapter segment. The design of the adapter segment makes the connection between the movable grip and the first shell cover more stable, and also increases the flexibility of the movable grip rotation. The angle between the second adapter segment and the first adapter segment can be adjusted according to actual needs, so that the user can more comfortably hold the movable grip and perform opening and closing operations. Through the connection of the adapter segment, the movable grip can stably drive the first shell cover to open and close relative to the second shell cover, thereby realizing the function of quickly attaching and detaching dumbbells at the connecting end. This design not only improves the practicality of the barbell, but also makes it more convenient for users to operate during fitness.

[0024] 4. The movable grip provided by this utility model is located on the side of the first shell cover away from the second shell cover. When the first and second shell covers are closed, the movable grip is parallel to the first shell cover. This design ensures that when not in use, the movable grip will not protrude or interfere with other parts of the barbell, guaranteeing the overall aesthetics and comfort of the barbell. Simultaneously, the parallel design of the movable grip to the first shell cover also saves space when storing the barbell, facilitating storage and carrying for the user. Furthermore, the movable grip is preferably made of a soft and non-slip material to provide a good grip feel and ensure user safety and stability during use.

[0025] 5. The connecting end provided by this utility model also includes a rotating shaft, which is located at the rotating end and passes through the first and second shell covers. A clamping part is located between the rotating shaft and the opening / closing assembly. The design of the rotating shaft allows the first and second shell covers to rotate smoothly at the rotating end, ensuring the flexibility and durability of the connecting end. Simultaneously, as a key component connecting the first and second shell covers, the stability of the rotating shaft ensures that the barbell will not loosen or be damaged during use. The clamping part, located between the rotating shaft and the opening / closing assembly, allows the dumbbell to be stably clamped on the connecting end, preventing it from easily falling off and ensuring the user's safety during exercise. Furthermore, the cooperative design of the rotating shaft and the clamping part allows the dumbbell to be easily and quickly installed and removed, improving the practicality and convenience of the barbell.

[0026] 6. The first and second shell covers provided by this utility model are both composed of a base plate and side plates disposed on opposite sides of the base plate. When the first and second shell covers are closed, a gap is formed between the base plates, and the side plates overlap at least partially. This design not only increases the structural strength between the first and second shell covers but also makes the connecting end more stable when clamping dumbbells. The gap between the base plates provides sufficient space for the dumbbells, ensuring that the dumbbells can be completely clamped within the connecting end, preventing them from shaking or falling off. In addition, this combination design of the first and second shell covers also makes the connecting end more neat and aesthetically pleasing, meeting the aesthetic requirements of modern fitness equipment.

[0027] 7. The first and second shell covers provided by this utility model are respectively provided with a first recess and a second recess on their side plates. When the first and second shell covers are closed, the first and second recesses connect to form a clamping part. The connection design of the first and second recesses not only makes the clamping part more stable, but also enhances the friction when clamping the dumbbell, preventing the dumbbell from slipping during training. At the same time, the recesses also facilitate user hand operation, making the installation and removal of the dumbbell easier and faster. In addition, the shape and size of the first and second recesses can be adapted to the size of the dumbbell to ensure that the dumbbell can be tightly clamped to the connecting end, further improving the practicality and safety of the barbell.

[0028] 8. The barbell bar provided by this utility model can be set as a straight bar or a curved bar; when the barbell bar is set as a curved bar, the curved bar is provided with a first bending segment and a second bending segment symmetrically along the midpoint of the curved bar, and the bending angle of the first bending segment and the second bending segment in the curved bar is set to 120-150 degrees.

[0029] This design allows the barbell to maintain sufficient strength while also being flexibly adjustable to suit the user's training needs. The curved bar not only increases the diversity of training but also better targets various parts of the body, improving training effectiveness. Furthermore, the bending angles of the first and second bends are set at 120-150 degrees. This angle range ensures the stability of the barbell during use while providing a comfortable grip and reducing arm fatigue during prolonged training. In addition, the curved bar design saves space when storing the barbell, making it easy for users to store and carry.

[0030] 9. This utility model also provides a barbell assembly, which includes a barbell and dumbbells that can be connected to dumbbells. The dumbbells are clamped in the clamping part of the barbell. The barbell assembly has the same beneficial effects as the barbell that can be connected to dumbbells described above, and will not be described in detail here. [Attached Image Description]

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a front view of the barbell that can be connected to dumbbells provided in the first embodiment of this utility model. Figure 1 .

[0034] Figure 2 This is an isometric view of the connecting end provided in the first embodiment of this utility model.

[0035] Figure 3 This is an exploded view of the connection end provided in the first embodiment of this utility model.

[0036] Figure 4 This is a left view of the connector end provided in the first embodiment of this utility model.

[0037] Figure 5 This is a front view of the barbell that can be connected to dumbbells provided in the first embodiment of this utility model. Figure 2 .

[0038] Figure 6 This is a left view of the barbell assembly provided in the second embodiment of this utility model.

[0039] Figure 7 This is a schematic diagram of another connection end structure provided in the first embodiment of this utility model.

[0040] Explanation of reference numerals in the attached diagram:

[0041] 1. A barbell that can connect to dumbbells; 2. A barbell assembly;

[0042] 11. Barbell bar; 12. Connecting end; 21. Dumbbell;

[0043] 111. Bent rod; 121. Rotating end; 122. Opening / closing end; 123. Opening / closing assembly; 124. First shell cover; 125. Second shell cover; 126. Clamping part; 127. Rotating shaft; 128. Base plate; 129. Side plate;

[0044] 1111, First bend section; 1112, Second bend section; 1231, Movable handle; 1232, Sleeve rod; 1233, Adapter; 1234, First locking nut; 1235, Second locking nut; 1236, Threaded area; 1237, Adjusting bolt; 1241, First recess; 1251, Second recess; 1252, Hook; 1281, Spacing;

[0045] 12321, Connecting rod; 12322, Movable rod; 12331, First transition section; 12332, Second transition section.

Detailed Implementation Methods

[0047] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0048] It should be noted that the terms "first" and "second" in the specification and claims of this utility model are used to distinguish different objects, rather than to describe a specific order.

[0049] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0050] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0051] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0052] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0053] An existing multi-functional barbell typically consists of a main barbell bar and multiple detachable dumbbells, enabling users to perform various barbell and dumbbell training functions on a single machine. Users only need to purchase one product to enjoy the dual benefits of barbell and dumbbell training. However, in existing multi-functional barbells, the connection structure between the barbell bar and dumbbells is complex, making it difficult for users to easily and quickly attach and detach dumbbells. Furthermore, the safety of using multi-functional barbells cannot be guaranteed.

[0054] To address the inconvenience of assembling and disassembling existing multi-functional barbells, please refer to the following: Figures 1-3 The first embodiment of this utility model provides a barbell 1 that can be connected to dumbbells. The barbell 1 includes a barbell bar 11 and a connecting end 12. A connecting end 12 is provided at each end of the barbell bar 11. The connecting end 12 includes a first shell 124 and a second shell 125. The connecting end 12 defines an opening end 122 and a rotating end 121. The first shell 124 and the second shell 125 are rotatably connected at the rotating end 121. The barbell bar 11 is connected to the side of the second shell 125 away from the first shell 124.

[0055] The connecting end 12 also includes an opening and closing assembly 123 disposed on the opening and closing end 122. The opening and closing assembly 123 includes a movable handle 1231 and a sleeve 1232. One end of the sleeve 1232 is rotatably connected to the second shell cover 125. The movable handle 1231 is connected to the first shell cover 124. At the same time, the movable handle 1231 is connected to the end of the sleeve 1232 away from the second shell cover 125. The connecting end 12 is provided with a clamping part 126. The clamping part 126 for placing dumbbells is formed between the closed first shell cover 124 and the second shell cover 125.

[0056] The barbell 1 that can be connected to dumbbells provided in this embodiment achieves the conversion between barbell and dumbbell functions by connecting dumbbells to the connecting end 12 and combining it with the barbell bar 11, thereby improving the utilization rate and practicality of fitness equipment.

[0057] Furthermore, the first cover 124 and the second cover 125 in the connecting end 12 are rotatably connected at the rotating end 121 of the connecting end 12, and an opening and closing assembly 123 is provided at the opening and closing end 122 of the connecting end 12. The opening and closing assembly 123 is connected to the first cover 124 and the second cover 125 respectively through a movable handle 1231 and a sleeve 1232. Rotating the movable handle 1231 can drive the first cover 124 to open and close relative to the second cover 125, thereby realizing the opening and closing of the first cover 124. The design of the movable handle 1231 simplifies the process of attaching and detaching dumbbells between the barbell 124 and the second cover 125. The user simply rotates the movable handle 1231, causing the sleeve 1232 to disengage from the second cover 125. Simultaneously, the movable handle 1231 rotates the first cover 124 relative to the second cover 125, opening both covers and allowing the dumbbell to be placed in the clamping part 126. Rotating the movable handle 1231 in the opposite direction then connects the sleeve 1232 to the second cover 125 until the movable handle 1231 is rotated parallel to the first cover 124, completing the locking closure. This eliminates the need for complicated procedures, allowing for quicker and easier attachment and detachment of dumbbells from the barbell 11. The sleeve 1232, acting as a bridge between the movable handle 1231 and the cover, ensures the stability and reliability of the rotation.

[0058] As another implementation method, please refer to Figure 7 The opening and closing assembly 123 can be configured as an adjusting bolt 1237. The adjusting bolt 1237 is located at the opening and closing end 122 of the connecting end 12 and passes through the first cover 124 and the second cover 125. By tightening the adjusting bolt 1237, the adjusting bolt 1237 clamps the first cover 124 and the second cover 125, thereby fixing the dumbbell placed inside the connecting end 12. At the same time, by loosening the adjusting bolt 1237 and removing the adjusting bolt 1237 from the opening and closing end 122, the first cover 124 and the second cover 125 can be opened to install or remove the dumbbell.

[0059] Specifically, please refer to Figure 3 The sleeve 1232 includes a movable rod 12322 and a connecting rod 12321. A hook 1252 is provided on the second cover 125. When the first cover 124 and the second cover 125 are locked and closed, one end of the connecting rod 12321 is engaged with the hook 1252. A threaded area 1236 is provided on the connecting rod 12321. A first locking nut 1234 and a second locking nut 1235 are provided on the threaded area 1236. The connecting rod 12321 passes through both ends of the movable rod 12322, and the first locking nut 1234 and the second locking nut 1235 clamp the movable rod 12322. At the same time, the movable rod 12322 is rotatably connected to the movable handle 1231.

[0060] When using the barbell 1, which can be connected to dumbbells, rotate the movable handle 1231 so that the movable handle 1231 drives the connecting rod 12321 to disengage from the hook 1252 via the movable rod 12322. The movable handle 1231 rotates towards the second cover 125. During the rotation, the movable handle 1231 drives the first cover 124 to rotate relative to the second cover 125, opening the opening end 122, thereby allowing the dumbbell to be placed in the clamping part 126. Then, rotate the movable handle 1231 in the opposite direction so that the connecting rod 12321 engages with the hook 1252. The movable handle 1231 pushes the first cover 124 and the second cover to close until the movable handle 1231 rotates to a position parallel to the first cover 124, completing the locking and fixing of the dumbbell.

[0061] The movable rod 12322 can slide flexibly on the connecting rod 12321, and can also be clamped by the first locking nut 1234 and the second locking nut 1235, making the structure of the sleeve rod 1232 more stable. The movable rod 12322 can be easily adjusted in position during the assembly process of the connecting end 12. At the same time, the movable rod 12322 is firmly fixed by the first locking nut 1234 and the second locking nut 1235, ensuring that when the movable handle 1231 is rotated, the movable rod 12322 can stably drive the first shell cover 124 to open and close relative to the second shell cover 125. The hook 1252 simplifies the connection process between the sleeve rod 1232 and the second shell cover 125. Only one end of the connecting rod 12321 needs to be engaged with the hook 1252, which greatly improves the convenience of assembly.

[0062] Furthermore, the design of the first locking nut 1234 and the second locking nut 1235 not only enhances the stability of the sleeve bar 1232 structure, but also makes the movable rod 12322 less likely to fall off during rotation and use. When the dumbbell 21 is clamped between the first cover 124 and the second cover 125, the first cover 124 will have a tendency to move in the opening direction due to the weight of the dumbbell 21. The movable rod 12322 will move towards the first locking nut 1234 under the action of the first cover 124, so that the movable rod 12322 and the first locking nut 1234 complete self-locking under the influence of the dumbbell 21. At the same time, the movable rod 12322 will drive the connecting rod 12321 to move towards the first cover 124, so that the end of the connecting rod 12321 engaged in the hook 1252 is self-locked with the hook 1252, ensuring the safety and reliability of the barbell use.

[0063] Specifically, please refer to Figure 3The opening and closing assembly 123 also includes a connector 1233, which includes a first connector segment 12331 and a second connector segment 12332 connected together. The first connector segment 12331 is fixedly connected to the outer wall of the first cover 124 on the side away from the second cover 125. The second connector segment 12332 is set at an angle to the first connector segment 12331 and extends above the opening and closing end 122. The movable handle 1231 is rotatably connected to the second connector segment 12332.

[0064] The design of the adapter 1233 makes the connection between the movable grip 1231 and the first cover 124 more stable, and also increases the flexibility of the movable grip 1231's rotation. The angle between the second adapter section 12332 and the first adapter section 12331 can be adjusted by using different adapters 1233 to change the relative alignment between the movable grip 1231 and the first cover 124, allowing the user to grip the movable grip 1231 more comfortably and perform opening and closing operations. Through the connection of the adapter 1233, the movable grip 1231 can stably drive the first cover 124 to open and close relative to the second cover 125, thereby enabling quick attachment and detachment of the dumbbell 21 from the connecting end 12. This design not only improves the barbell's practicality but also makes it more convenient for users to operate during exercise.

[0065] Furthermore, please refer to the following: Figure 3 and Figure 4 The movable handle 1231 is located on the side of the first cover 124 away from the second cover 125. When the first cover 124 and the second cover 125 are closed, the movable handle 1231 is parallel to the first cover 124.

[0066] The design of the movable grip 1231 ensures that when not in use, it does not protrude or interfere with other parts of the barbell, maintaining the overall aesthetics and comfort of use. Simultaneously, the parallel alignment of the movable grip 1231 with the first shell cover 124 saves space during storage, facilitating easy handling and transport. Furthermore, the movable grip 1231 is preferably made of a soft and non-slip material to provide a comfortable grip and ensure user safety and stability during use.

[0067] Specifically, please refer to Figure 3 The connecting end 12 also includes a rotating shaft 127, which is located at the rotating end 121 and passes through the first cover 124 and the second cover 125. The clamping part 126 is located between the rotating shaft 127 and the opening and closing assembly 123.

[0068] The design of the pivot 127 allows the first cover 124 and the second cover 125 to rotate smoothly at the rotating end 121, ensuring the flexibility and durability of the connecting end 12. Simultaneously, as a key component connecting the first cover 124 and the second cover 125, the pivot 127's stability ensures the barbell will not loosen or be damaged during use. The clamping part 126 is located between the pivot 127 and the opening / closing assembly 123. This layout allows the dumbbell 21 to be stably clamped on the connecting end 12, preventing it from easily falling off and ensuring user safety during exercise. Furthermore, the cooperative design of the pivot 127 and the clamping part 126 allows the dumbbell 21 to be easily and quickly installed and removed, improving the barbell's practicality and convenience.

[0069] Further, please refer to Figure 3 The first cover 124 and the second cover 125 are both composed of a base plate 128 and side plates 129 disposed on opposite sides of the base plate 128. When the first cover 124 and the second cover 125 are closed, a gap 1281 is formed between the base plates 128 of the two covers, and the side plates 129 of the two covers overlap at least partially. The overlapping part of the side plates 129 of the two covers contacts the dumbbell bar of the dumbbell placed in the clamping part 126.

[0070] This design not only increases the structural strength between the first cover 124 and the second cover 125, but also makes the connecting end 12 more stable when holding the dumbbell 21. The gap 1281 between the base plates 128 provides sufficient space for the dumbbell 21, ensuring that the dumbbell 21 can be completely clamped within the connecting end 12, preventing it from wobbling or falling off. In addition, this combination design of the first cover 124 and the second cover 125 also makes the connecting end 12 more aesthetically pleasing and meets the aesthetic requirements of modern fitness equipment.

[0071] Specifically, a flexible sleeve is fitted on the side plate 129, and the connecting end 12 contacts the dumbbell through the flexible sleeve at the clamping part 126, thus avoiding wear on the clamping area of ​​the dumbbell caused by the connecting end 12.

[0072] Specifically, please refer to Figure 3 The first shell cover 124 and the second shell cover 125 are respectively provided with a first recess 1241 and a second recess 1251 on the side plate 129. When the first shell cover 124 and the second shell cover 125 are closed, the first recess 1241 and the second recess 1251 are joined together to form a clamping part 126.

[0073] The mating design of the first recess 1241 and the second recess 1251 not only makes the clamping part 126 more stable, but also enhances the friction when clamping the dumbbell 21, preventing the dumbbell 21 from slipping during training. At the same time, the recessed design facilitates user hand operation, making the installation and removal of the dumbbell 21 easier and faster. Furthermore, the shape and size of the first recess 1241 and the second recess 1251 can be adapted to the size of the dumbbell 21 to ensure that the dumbbell 21 can be tightly clamped to the connecting end 12, further improving the practicality and safety of the barbell.

[0074] Specifically, please refer to the following: Figure 1 and Figure 5 The barbell bar 11 can be configured as a straight bar or a bent bar 111. When the barbell bar 11 is configured as a bent bar 111, the bent bar 111 is provided with a first bent segment 1111 and a second bent segment 1112 symmetrically arranged along the midpoint of the bent bar 111.

[0075] Optionally, when the barbell bar 11 is configured as a bent bar 111, the bent bar 111 is provided with a first bent segment 1111 and a second bent segment 1112 symmetrical about the midpoint of the bent bar 111.

[0076] This design allows the barbell 11 to maintain sufficient strength while also being flexibly adjustable to suit the user's training needs. The curved bar 111 not only increases the diversity of training but also better targets various parts of the body, improving training effectiveness.

[0077] Preferably, the bending angle of the first bending segment 1111 and the second bending segment 1112 in the bent bar 111 is set to 120-150 degrees, specifically 135 degrees. This angle range ensures the stability of the barbell bar 11 during use while providing a comfortable grip and reducing arm fatigue during prolonged training. Furthermore, the design of the bent bar 111 saves space when storing the barbell, making it easier for users to store and carry.

[0078] The first embodiment of this utility model provides a barbell 1 that can connect to dumbbells. A dumbbell 21 is connected via a connecting end 12, enabling the conversion between the barbell and dumbbell 21 functions and improving the utilization and practicality of the fitness equipment. The cover of the connecting end 12 is connected via an opening and closing assembly 123. The movable handle 1231 can be rotated to control the opening and closing of the cover, facilitating the loading and unloading of the dumbbell 21. The movable handle 1231 is designed to simplify operation and improve loading and unloading efficiency. The sleeve 1232 ensures rotational stability and reliability. When loading and unloading the dumbbell 21, the user can determine the state of the cover by the position of the movable handle 1231, and can easily assemble or disassemble the dumbbell 21 by rotating the movable handle 1231, making it convenient to use. Meanwhile, the sleeve 1232 includes a movable rod 12322 and a connecting rod 12321, with the connecting rod 12321 engaging with a hook 1252 on the cover. The connecting rod 12321 is equipped with a locking nut that clamps the movable rod 12322. The movable rod 12322 is rotatably connected to the movable handle 1231. The locking nut design enhances the stability of the sleeve rod 1232, and the movable rod 12322 can be flexibly slidably adjusted to ensure stable opening and closing during rotation. The locking nut design not only enhances stability but also prevents the movable rod 12322 from falling off. After the cover clamps the dumbbell 21, the movable rod 12322 and the locking nut self-lock, ensuring safe and reliable use.

[0079] To resolve the above technical issues, please refer to [link / reference]. Figure 6 The second embodiment of this utility model also provides a barbell assembly 2, which includes a barbell 1 and dumbbells 21 that can be connected to dumbbells, with the dumbbells 21 clamped in the clamping part 126 of the barbell. The barbell assembly 2 has the same beneficial effects as the barbell 1 that can be connected to dumbbells described above, and will not be described in detail here.

[0080] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connectable dumbbell bar, characterized by: The barbell bar includes a barbell bar and a connecting end. Each of the two ends of the barbell bar is provided with a connecting end. The connecting end includes a first cover and a second cover. The connecting end defines an opening end and a rotating end. The first cover and the second cover are rotatably connected at the rotating end. The barbell bar is connected to the side of the second cover opposite to the first cover. The connecting end also includes an opening and closing assembly located at the opening and closing end. The opening and closing assembly includes a movable handle and a sleeve. One end of the sleeve is rotatably connected to the second shell cover. The movable handle is connected to the first shell cover, and at the same time, the movable handle is connected to the end of the sleeve away from the second shell cover. The connecting end is provided with a clamping part, and the clamping part for placing dumbbells is formed between the closed first shell cover and the second shell cover.

2. A connectable dumbbell bar according to claim 1, characterized in that: The sleeve includes a movable rod and a connecting rod. A hook is provided on the second shell cover, and one end of the connecting rod is engaged with the hook. A first locking nut and a second locking nut are provided on the connecting rod. The connecting rod passes through both ends of the movable rod, and the first locking nut and the second locking nut clamp the movable rod. At the same time, the movable rod is rotatably connected to the movable handle.

3. A connectable dumbbell bar according to claim 2, characterized in that: The opening and closing assembly also includes a connector, which includes a first connector segment and a second connector segment connected together. The first connector segment is fixedly connected to the outer wall of the first cover on the side away from the second cover. The second connector segment is set at an angle to the first connector segment and extends above the opening and closing end. The movable handle is rotatably connected to the second connector segment.

4. A connectable dumbbell bar according to claim 3, characterized in that: The movable handle is located on the side of the first cover away from the second cover. When the first cover and the second cover are closed, the movable handle is parallel to the first cover.

5. The connectable dumbbell barbell of claim 1, wherein: The connection end also includes a rotating shaft, which is located at the rotating end and passes through the first shell cover and the second shell cover. The clamping part is located between the rotating shaft and the opening and closing assembly.

6. A connectable dumbbell bar according to claim 5, characterized in that: Both the first and second shell covers consist of a base plate and side plates disposed on opposite sides of the base plate. When the first and second shell covers are closed, a gap is formed between the base plates of the two shell covers, and the side plates of the two shell covers at least partially overlap.

7. A connectable dumbbell bar according to claim 6, characterized in that: The first and second shell covers are respectively provided with a first recess and a second recess on their side plates. When the first and second shell covers are closed, the first and second recesses are joined together to form the clamping part.

8. A barbell that can be connected to dumbbells according to claim 1, characterized in that: The barbell bar can be configured as a straight bar or a curved bar; when the barbell bar is configured as a curved bar, the curved bar has a first bending segment and a second bending segment symmetrical about the midpoint of the curved bar.

9. A connectable dumbbell bar according to claim 8, characterized in that: The bending angles of the first and second bending sections of the bent rod are set to 120-150 degrees.

10. A barbell assembly characterized by: Includes a barbell and dumbbells that can be connected to dumbbells as described in any one of claims 1-9, wherein the dumbbells are clamped in the clamping part of the barbell.

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