A dumbbell structure with dual-mode adjustment function
By designing a dumbbell structure with dual-mode adjustment, using slide rails and threaded connections to stabilize the counterweight components, and combining them with blocking components to prevent detachment, the problem of loosening and detaching the dumbbell core is solved, achieving safe and flexible dumbbell training.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI DIANJI UNIV
- Filing Date
- 2025-07-16
- Publication Date
- 2026-08-04
AI Technical Summary
In the existing dumbbell structure, the dumbbell core is prone to detaching from the connecting rod during use, posing a safety hazard.
Design a dumbbell structure with dual-mode adjustment function, including a dumbbell bar, a mounting component, a counterweight component, and a blocking component. The counterweight component is secured by a slide rail and a threaded connection, and the blocking component prevents it from falling off.
It achieves a secure connection of the weight components on the dumbbell bar, preventing loosening and detachment, improving safety, and allowing for free adjustment of the weight to meet the training needs of different users.
Smart Images
Figure CN224585255U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fitness equipment technology, and in particular to a dumbbell structure with dual-mode adjustment function. Background Technology
[0002] Dumbbells are a common piece of fitness equipment, mainly used to enhance muscle strength, shape the body, and improve endurance. Dumbbell training stimulates muscle growth through weight training, increasing muscle strength and size. Through different training movements, multiple muscle groups in the body can be exercised, such as the chest, back, legs, shoulders, and arms.
[0003] In modern fitness culture, dumbbells are considered one of the most basic and efficient training tools. Whether for aerobic exercise, strength training, or rehabilitation training, dumbbells are highly adaptable.
[0004] Chinese Patent Publication No. CN215084578U discloses a dumbbell structure, including a handle and a dumbbell core. The handle includes a gripping rod and a connecting rod, with connecting rods at both ends of the gripping rod. The gripping rod and the connecting rod are integrally formed. A semi-circular ring is provided on the upper surface of the connecting rod. The dumbbell core has a connecting hole. A semi-circular limiting ring is provided on one side of the connecting hole, and a positioning ring is provided on the other side of the connecting hole. The dumbbell core, the semi-circular limiting ring, and the positioning ring are integrally formed. The utility model in the above-mentioned document has a simple structure and reasonable design. It does not require welding or machining for fixing, resulting in lower cost, higher assembly and disassembly efficiency, and greater environmental friendliness. One handle can be used with multiple specifications of dumbbell cores, further reducing costs. At the same time, it can prevent the dumbbell from accidentally falling off, thus improving safety performance.
[0005] The aforementioned device lacks a structure to prevent the dumbbell core from detaching from the end of the connecting rod after it is mounted on the connecting rod via a semi-circular ring. As a result, when users perform rapid movements or high-load training with the aforementioned device, the dumbbell core can easily become loose or detach from the connecting rod, thereby causing a safety accident. Utility Model Content
[0006] The main purpose of this utility model is to provide a dumbbell structure with dual-mode adjustment function, which can effectively solve the problem that after the counterweight structure is installed on the dumbbell bar, the end of the dumbbell bar lacks a device to prevent the counterweight structure from detaching from the dumbbell bar, thus posing a safety hazard.
[0007] To solve the above-mentioned technical problems, the present invention provides a dumbbell structure with dual-mode adjustment function, comprising:
[0008] Dumbbell bar with baffles at both ends;
[0009] The mounting components are detachably attached to the end of the dumbbell bar and limited by the baffle.
[0010] A counterweight assembly, detachably connected to and fixedly positioned relative to the mounting assembly; wherein,
[0011] Each mounting component and each counterweight component of different specifications, after assembly, form a combination module of different specifications. Multiple combination modules of different specifications can be detached and connected to each other to achieve free adjustment of the dumbbell's counterweight.
[0012] A blocking component is detachably connected to the other end of the mounting assembly that connects to the dumbbell bar, and together with the baffle, limits the counterweight assembly to prevent it from detaching from the mounting assembly.
[0013] Optionally, the two ends of the dumbbell bar are exposed above the baffle and have connection holes.
[0014] Optionally, the mounting components include:
[0015] The first connecting rod and the round rod are integrally formed, and the first connecting rod is detachably connected to the connecting hole of the dumbbell rod.
[0016] A limiting plate is formed at the connection between the first connecting rod and the round rod. When the mounting assembly is connected to the dumbbell bar, the limiting plate contacts the baffle to limit the movement between the mounting assembly and the dumbbell bar.
[0017] The surface of the round rod has a pair of first slide rails and a pair of second slide rails arranged symmetrically along the axial direction of the dumbbell rod. The first slide rails are provided with threaded grooves.
[0018] The first connecting rod is a solid structure, and the end face of the round rod has an inward connecting groove.
[0019] Optionally, the counterweight assembly includes:
[0020] The counterweight has a through positioning and mounting hole at its center and two elongated mounting holes that extend from the edges of the counterweight at symmetrical positions toward the positioning and mounting hole. The elongated mounting holes are connected to the positioning and mounting hole.
[0021] A fixing component, one end of which passes through the elongated mounting hole and protrudes into the positioning mounting hole, and when the counterweight is fitted onto the round rod through the positioning mounting hole, the fixing component is inserted into the threaded groove corresponding to its position to connect the counterweight to the round rod; and
[0022] A shielding component is attached to the other end of the fixing component that is exposed outside the counterweight to shield the fixing component.
[0023] Optionally, the positioning mounting hole also has a pair of first slide rail grooves and a pair of second slide rail grooves corresponding to the positions of the first slide rail and the second slide rail, and the counterweight is connected to the round rod through the cooperation of the first slide rail, the first slide rail groove and the second slide rail, the second slide rail groove.
[0024] Optionally, the fixing component includes:
[0025] A threaded rod that passes through the elongated mounting hole and the threaded groove to align and connect the counterweight and the round rod;
[0026] A rotating block is formed at the end of the threaded rod that exposes the counterweight block, and a rubber block with a continuous arc-shaped array of edges is also fitted on its outside to facilitate twisting. The blocking component is fitted on the threaded rod and covers the rotating block when closed.
[0027] Optionally, the shading component includes:
[0028] The first cylinder is sleeved and connected to the threaded rod and located below the rotating block;
[0029] The second cylinder is detachably threaded to the first cylinder, and after the first cylinder and the second cylinder are connected, they cover the rotating block.
[0030] A connecting ring is connected to the outer walls of the first cylinder and the second cylinder.
[0031] Optionally, the blocking component includes:
[0032] The second docking rod and the rotating plate are integrally formed, and the second docking rod is detachably connected to the docking groove of the round rod;
[0033] A blocking plate is formed at the connection between the second connecting rod and the rotating plate. When the second connecting rod is connected to the round rod, the blocking plate contacts the round rod to limit the distance between the blocking assembly and the mounting assembly, and restricts the counterweight between the limiting plate and the blocking plate in the axial direction of the dumbbell bar.
[0034] Optionally, when the number of the combined modules is one, the two ends of the mounting component are respectively connected to the dumbbell bar and the blocking component.
[0035] Optionally, when there are two or more combined modules, the two ends of the mounting component are respectively connected to the dumbbell bar and the blocking component, or respectively connected to the front mounting component and the rear mounting component, or respectively connected to the front mounting component and the blocking component.
[0036] The beneficial effects of this utility model's technical solution are:
[0037] 1. The mounting components of this utility model allow the counterweight components to be assembled with the dumbbell bar, and multiple mounting components can be assembled sequentially, thereby allowing multiple counterweight components to be added to the dumbbell bar. This enables the device to freely adjust the counterweight, thus meeting the different training requirements of different users. The blocking components can seal the ends of the mounting components to prevent the counterweight components installed on the mounting components from becoming loose or even detaching from the ends of the mounting components when the user is using this device for fast training or heavy weight training, thereby preventing safety accidents.
[0038] 2. The two first and second slide rails provided in this utility model serve as limiters, ensuring that after the round rod passes through the counterweight block, the two threaded rods are aligned with the two threaded grooves, thus ensuring that the two threaded rods can be inserted into the two threaded grooves respectively, thereby completing the work of installing the counterweight assembly on the mounting assembly, making the assembly of this device simple and convenient; at the same time, the presence of the two first and second slide rails can prevent the counterweight block installed on the round rod from rotating. Attached Figure Description
[0039] Figure 1 This is a schematic diagram of the overall structure and appearance of this utility model;
[0040] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0041] Figure 3 This is a schematic diagram of the installation component structure of this utility model;
[0042] Figure 4 This is a schematic diagram of the counterweight component structure of this utility model;
[0043] Figure 5 This is a partial structural diagram of the counterweight component of this utility model;
[0044] Figure 6 This is a schematic diagram of the blocking component structure of this utility model.
[0045] In the diagram: 1. Dumbbell bar; 2. Baffle; 3. Mounting assembly; 31. First connecting rod; 32. Round rod; 33. Limiting plate; 34. First slide rail; 35. Threaded groove; 36. Second slide rail; 37. Connecting groove; 4. Counterweight assembly; 41. Counterweight block; 411. Positioning mounting hole; 412. Long mounting hole; 413. First slide rail groove; 414. Second slide rail groove; 42. Fixing assembly; 421. Threaded rod; 422. Rotating block; 423. Rubber block; 43. Blocking assembly; 431. First cylinder; 432. Second cylinder; 433. Connecting ring; 5. Blocking assembly; 51. Second connecting rod; 52. Blocking plate; 53. Rotating plate; 100. Combination module. Detailed implementation method:
[0046] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.
[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0048] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0049] In this utility model, unless otherwise explicitly 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 connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0050] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature 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 includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0051] Please see Figure 1 and Figure 2 As shown, an embodiment of a dumbbell structure with dual-mode adjustment function is illustrated, comprising:
[0052] Dumbbell bar 1, with baffles 2 at both ends;
[0053] Mounting component 3 is detachably connected to the end of dumbbell bar 1 and is limited by baffle 2;
[0054] The counterweight component 4 is detachably connected to the mounting component 3 in a relatively fixed position; wherein,
[0055] Each mounting component 3 and each counterweight component 4 of different specifications, after assembly, form a combination module 100 of different specifications. Multiple combination modules 100 of different specifications can be detached and connected to each other to achieve free adjustment of the dumbbell's counterweight.
[0056] The blocking component 5 is detachably connected to the other end of the mounting component 3 that connects to the dumbbell bar 1, and together with the baffle 2, it limits the counterweight component 4 to prevent the counterweight component 4 from detaching from the mounting component 3.
[0057] In this embodiment, the two ends of the dumbbell bar 1 are exposed by the baffle 2 and have connection holes (not shown).
[0058] like Figure 3 As shown, in this embodiment, the installation component 3 includes:
[0059] The first connecting rod 31 and the round rod 32 are integrally formed, and the first connecting rod 31 is detachably connected to the connecting hole of the dumbbell rod 1.
[0060] A limiting plate 33 is formed at the connection between the first connecting rod 31 and the round rod 32. When the mounting assembly 3 is connected to the dumbbell bar 1, the limiting plate 33 contacts the baffle 2 to limit the movement between the mounting assembly 3 and the dumbbell bar 1.
[0061] The surface of the round rod 32 has a pair of first slide rails 34 and a pair of second slide rails 36 arranged symmetrically along the axial direction of the dumbbell rod 1. The first slide rails 34 are provided with threaded grooves 35.
[0062] The first connecting rod 31 is a solid structure with external threads, and the end face of the round rod 32 has a connecting groove 37.
[0063] like Figure 4 As shown, in this embodiment, the counterweight component 4 includes:
[0064] The counterweight 41 has a through positioning and mounting hole 411 at its center and two elongated mounting holes 412 that are symmetrically located on the edge of the counterweight 41 and open toward the positioning and mounting hole 411. The elongated mounting holes 412 are connected to the positioning and mounting hole 411.
[0065] The fixing component 42 has one end passing through the elongated mounting hole 412 and protruding from the positioning mounting hole 411. When the counterweight 41 is fitted onto the round rod 32 through the positioning mounting hole 411, the fixing component 42 is inserted into the threaded groove 35 corresponding to its position to connect the counterweight 41 to the round rod 32; and
[0066] The shielding component 43 is connected to the other end of the fixing component 42 that is exposed outside the counterweight 41, so as to shield the fixing component 42.
[0067] In this embodiment, the positioning mounting hole 411 also has a pair of first slide rail grooves 413 and a pair of second slide rail grooves 414 corresponding to the positions of the first slide rail 34 and the second slide rail 36. The counterweight 41 is connected to the round rod 32 through the cooperation of the first slide rail 34, the first slide rail groove 413 and the second slide rail 36, the second slide rail groove 414.
[0068] like Figure 5 As shown, in this embodiment, the fixing component 52 includes:
[0069] A threaded rod 421 passes through an elongated mounting hole 412 and a threaded groove 35 to align and connect the counterweight 41 and the round rod 32.
[0070] The rotating block 422 is formed at the end of the threaded rod 421 that exposes the counterweight block 41. A rubber block 423 with a continuous arc-shaped array structure is also sleeved on its outside to facilitate turning. The blocking component 43 is sleeved on the threaded rod 421 and blocks the rotating block 422 when closed.
[0071] See also Figure 5 As shown, in this embodiment, the shading component 43 includes:
[0072] The first cylinder 431 is sleeved and connected to the threaded rod 421 and located below the rotating block 422;
[0073] The second cylinder 432 is detachably connected to the first cylinder 431 by threads. After the first cylinder 431 and the second cylinder 432 are connected, they cover the rotating block 422.
[0074] The connecting ring 433 is connected to the outer wall of the first cylinder 431 and the second cylinder 432.
[0075] like Figure 6 As shown, in this embodiment, the blocking component 5 includes:
[0076] The second docking rod 51 and the rotating plate 53 are integrally formed, and the second docking rod 51 is detachably connected to the docking groove 37 of the round rod 32;
[0077] The blocking plate 52 is formed at the connection between the second docking rod 51 and the rotating plate 53. When the second docking rod 51 is connected to the round rod 37, the blocking plate 52 contacts the round rod 37 to limit the blocking assembly 5 and the mounting assembly 3, and restrict the counterweight 41 between the limiting plate 33 and the blocking plate 52 in the axial direction of the dumbbell rod 1.
[0078] In this embodiment, when there is only one combination module 100, the two ends of the mounting component 3 are connected to the dumbbell bar 1 and the blocking component 5, respectively.
[0079] In this embodiment, when there are two or more combination modules 100, the two ends of the mounting component 3 are respectively connected to the dumbbell bar 1 and the blocking component 5, or respectively connected to the front mounting component 3 and the rear mounting component 3, or respectively connected to the front mounting component 3 and the blocking component 5.
[0080] The features and functions of this utility model will be further understood through the following detailed description.
[0081] This embodiment of a dumbbell structure with dual-mode adjustment function includes a dumbbell bar 1, baffles 2 are symmetrically fixedly connected to the left and right sides of the outer surface of the dumbbell bar 1, mounting components 3 are symmetrically arranged on the left and right sides of the dumbbell bar 1, counterweight components 4 are symmetrically arranged on the side away from each other of the two baffles 2, and blocking components 5 are symmetrically arranged on the side away from each other of the two counterweight components 4.
[0082] In the specific implementation, two mounting components 3 are installed on the left and right sides of the dumbbell bar 1 respectively, and then a counterweight component 4 is fixed by the two mounting components 3 respectively. Then, two blocking components 5 are installed on the two mounting components 3 respectively, thus forming a complete dumbbell.
[0083] If it is necessary to increase the weight of the dumbbell, remove the two blocking components 5 from the two mounting components 3 respectively, install the two uninstalled mounting components 3 onto the two installed mounting components 3 respectively, and then fix a counterweight component 4 with the two added mounting components 3 respectively. In this way, counterweight components 4 are added on the left and right sides of the dumbbell bar 1, thereby completing the work of increasing the counterweight.
[0084] Following the above procedure, each time a counterweight needs to be added, an additional mounting component 3 is added to the already installed mounting component 3, and then the uninstalled counterweight component 4 is fixed to the added mounting component 3.
[0085] After the work of adding counterweights is completed, the two blocking components 5 are installed on the two outermost mounting components 3 respectively.
[0086] Specifically, in order to allow the counterweight of this device to be freely adjusted to meet the different training requirements of different users, please refer to... Figure 3 The mounting assembly 3 includes a first docking rod 31, which is threaded to the right side of the inner surface of the dumbbell rod 1. A round rod 32 is fixedly connected to the right end of the first docking rod 31. A limit plate 33 is fixedly connected to the left side of the outer surface of the round rod 32. First slide rails 34 are symmetrically fixedly connected to the upper and lower sides of the outer surface of the round rod 32. Threaded grooves 35 are opened in the middle of the two first slide rails 34 at opposite ends. Second slide rails 36 are symmetrically fixedly connected to the left and right sides of the outer surface of the round rod 32. A docking groove 37 is opened at the right end of the round rod 32. The first docking rod 31 is threaded to the inner surface of the docking groove 37.
[0087] Further reading Figure 4 The counterweight assembly 4 includes a counterweight block 41, which is slidably connected to the outer surfaces of the two first slide rails 34 and the two second slide rails 36. Fixing components 42 are symmetrically arranged on the upper and lower sides of the inner surface of the counterweight block 41, and shielding components 43 are symmetrically arranged on the upper and lower sides of the outer surface of the counterweight block 41.
[0088] Further reading Figure 5 The fixing component 42 includes a rotating block 422. A threaded rod 421 is threaded through and extends from the upper surface of the outer surface of the counterweight block 41 to the inner surface of the counterweight block 41. The rotating block 422 is fixedly connected to the upper end of the threaded rod 421. The threaded rod 421 is threadedly connected to the inner surface of the upper threaded groove 35. Several rubber blocks 423 are fixedly connected to the outer surface of the rotating block 422. The several rubber blocks 423 are arranged in an arc-shaped array. The shielding component 43 includes a first cylinder 431. The first cylinder 431 is fixedly connected to the upper surface of the outer surface of the counterweight block 41. A second cylinder 432 is threadedly connected to the upper surface of the outer surface of the first cylinder 431. A connecting ring 433 is fixedly connected to the lower surface of the outer surface of the first cylinder 431 and the outer surface of the second cylinder 432.
[0089] Further reading Figure 6 The blocking component 5 includes a second docking rod 51, which is threaded to the inner surface of the docking groove 37. A blocking plate 52 is fixedly connected to the right end of the second docking rod 51, and a rotating plate 53 is fixedly connected to the middle of the right end of the blocking plate 52.
[0090] The thread design of the inner surfaces of the first connecting rod 31 and dumbbell rod 1, the thread design of the inner surfaces of the first connecting rod 31 and connecting groove 37, and the thread design of the inner surfaces of the second connecting rod 51 and connecting groove 37 are all the same.
[0091] The outer surface of the aforementioned counterweight 41 is marked with a weight indication. In actual use, the weights of several counterweights 41 installed on the mounting assembly 3 can be the same or different. The inner surfaces of counterweights 41 of different weights are adapted to the design of the threaded groove 35 and the second slide rail 36 to ensure that counterweights 41 of different weights can be installed on the same mounting assembly 3.
[0092] The two second slide rails 36 mentioned above are each provided with a number of rotatably connected steel balls at the ends away from the round rod 32, thereby reducing the friction between the inner surface of the counterweight block 41 and the outer surface of the two second slide rails 36 when sliding, thereby reducing the wear of the inner surface of the counterweight block 41 and improving the service life of the counterweight block 41. The connection method between the two second slide rails 36 and the number of steel balls is a mature technical means in the prior art, and this solution will not be elaborated on further here;
[0093] In the specific implementation, the first connecting rod 31 is inserted into the right dumbbell bar 1, and the round rod 32 is rotated to drive the first connecting rod 31 to rotate. The mounting component 3 is installed on the right side of the dumbbell bar 1 through the first connecting rod 31. At this time, the limiting plate 33 abuts against the right end of the right dumbbell bar 1. The two first slide rails 34 are vertically distributed up and down, and the two second slide rails 36 are horizontally distributed left and right.
[0094] Following the above steps, install another mounting component 3 on the left side of the dumbbell bar 1;
[0095] Rotate the two second cylinders 432 to separate the two second cylinders 432 from the two first cylinders 431 respectively. Rotate the rotating block 422 clockwise to drive the threaded rod 421 to rotate, thereby driving the threaded rod 421 to move into the counterweight block 41.
[0096] After the threaded rod 421 on one side moves into the counterweight 41, the threaded rod 421 on the other side also moves into the counterweight 41.
[0097] After completing the above operations, insert the two first slide rails 34 and the two second slide rails 36 into the counterweight 41 respectively, slide the counterweight 41 so that the counterweight 41 abuts against the limiting plate 33, at which time the two threaded grooves 35 are respectively aligned with the two threaded rods 421.
[0098] Rotate the rotating block 422 counterclockwise to drive the threaded rod 421 to rotate and move towards the thread groove 35 until the threaded rod 421 is fully inserted into the thread groove 35.
[0099] Repeat the above operation so that the threaded rod 421 on the other side is also inserted into another threaded groove 35;
[0100] Then, the two second cylinders 432 are respectively installed together with the two first cylinders 431, thereby covering the two rotating blocks 422 to prevent the user from accidentally touching the two rotating blocks 422 during the exercise of this device, causing the two threaded rods 421 to rotate, which would affect the stability of the counterweight 41 installed on the mounting assembly 3.
[0101] This completes the installation of the counterweight 41 onto the mounting assembly 3. This process is simple and convenient, providing convenience for users assembling this device.
[0102] Following the above procedure, install another counterweight component 4 onto the mounting component 3 on the other side;
[0103] After completing the above operations, insert the second docking rod 51 into the docking groove 37 on one side, rotate the rotating plate 53, and use the second docking rod 51 to fix the blocking component 5 and the mounting component 3 on one side together.
[0104] The blocking plate 52 will block the end of the round rod 32 to prevent the counterweight 41 from becoming loose or even detaching from the end of the round rod 32 when the user is using this device for fast training or heavy weight training, thereby causing a safety accident.
[0105] Following the above procedure, install another blocking component 5 onto the mounting component 3 on the other side;
[0106] If it is necessary to increase the number of counterweight components 4, thereby increasing the weight of the device, remove the blocking components 5 on both sides from the mounting components 3 on both sides respectively.
[0107] Insert the first docking rod 31 of the uninstalled mounting component 3 into the docking groove 37 of the installed mounting component 3 on one side, and rotate the round rod 32 to drive the first docking rod 31 to rotate, thereby installing the uninstalled mounting component 3 on the mounting component 3 on one side.
[0108] Following the above operation, another non-installed counterweight component 4 is installed on the added installation component 3, thereby increasing the number of counterweight components 4 on this device, thus increasing the weight of this device, allowing the device to freely adjust the counterweight, thereby meeting the different training requirements of different users.
[0109] Repeat the above operation to install another counterweight component 4 onto the mounting component 3 on the other side that has already been installed;
[0110] After completing the above operations, install the two blocking components 5 on the two additional mounting components 3 respectively.
[0111] The working principle of this utility model is as follows:
[0112] Insert the first connecting rod 31 into both sides of the dumbbell bar 1, and use the two first connecting rods 31 to install the two mounting components 3 on both sides of the dumbbell bar 1.
[0113] Insert the two first slide rails 34 and the two second slide rails 36 on one side into the counterweight 41, slide the counterweight 41 so that the counterweight 41 abuts against the limiting plate 33, rotate the two rotating blocks 422 counterclockwise so that the two threaded rods 421 rotate and move into the two threaded grooves 35 respectively until they are inserted into the two threaded grooves 35 respectively.
[0114] Following the above procedure, install another counterweight component 4 onto the mounting component 3 on the other side;
[0115] Then, insert the second docking rod 51 into the docking groove 37 on one side, rotate the rotating plate 53, and use the second docking rod 51 to fix the blocking assembly 5 and the mounting assembly 3 on one side together.
[0116] Following the above procedure, another blocking component 5 is installed on the mounting component 3 on the other side.
[0117] In summary, the mounting components provided in this embodiment allow the weight assembly to be assembled with the dumbbell bar, and multiple mounting components can be assembled sequentially. This enables the addition of multiple weight assemblies to the dumbbell bar, allowing the device to freely adjust the weight and meet the different training requirements of different users. The blocking components can seal the ends of the mounting components to prevent the weight assemblies from becoming loose or even detaching from the ends of the mounting components during rapid or heavy weight training, thus preventing safety accidents.
[0118] The two first and second slide rails in this embodiment serve as limiters, ensuring that after the round rod passes through the counterweight, the two threaded rods are aligned with the two threaded grooves, thus allowing the two threaded rods to be inserted into the two threaded grooves respectively. This completes the installation of the counterweight assembly onto the mounting assembly, making the assembly of this device simple and convenient. At the same time, the presence of the two first and second slide rails prevents the counterweight mounted on the round rod from rotating.
[0119] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A dumbbell structure with dual-mode adjustment function, characterized in that, include: Dumbbell bar with baffles at both ends; The mounting components are detachably attached to the end of the dumbbell bar and limited by the baffle. A counterweight assembly, detachably connected to and fixedly positioned relative to the mounting assembly; wherein, Each mounting component and each counterweight component of different specifications, after assembly, form a combination module of different specifications. Multiple combination modules of different specifications can be detached and connected to each other to achieve free adjustment of the dumbbell's counterweight. A blocking component is detachably connected to the other end of the mounting component that connects to the dumbbell bar, and together with the baffle, limits the counterweight component to prevent it from detaching from the mounting component; Both ends of the dumbbell bar are exposed by the baffle and have connection holes; The installation components include: The first connecting rod and the round rod are integrally formed, and the first connecting rod is detachably connected to the connecting hole of the dumbbell rod. A limiting plate is formed at the connection between the first connecting rod and the round rod. When the mounting assembly is connected to the dumbbell bar, the limiting plate contacts the baffle to limit the movement between the mounting assembly and the dumbbell bar. The surface of the round rod has a pair of first slide rails and a pair of second slide rails arranged symmetrically along the axial direction of the dumbbell rod. The first slide rails are provided with threaded grooves. The first connecting rod is a solid structure, and the end face of the round rod has an inward connecting groove.
2. The dumbbell structure with dual-mode adjustment function according to claim 1, characterized in that, The counterweight assembly includes: The counterweight has a through positioning and mounting hole at its center and two elongated mounting holes that extend from the edges of the counterweight at symmetrical positions toward the positioning and mounting hole. The elongated mounting holes are connected to the positioning and mounting hole. A fixing component, one end of which passes through the elongated mounting hole and protrudes into the positioning mounting hole, and when the counterweight is fitted onto the round rod through the positioning mounting hole, the fixing component is inserted into the threaded groove corresponding to its position to connect the counterweight to the round rod; and A shielding component is attached to the other end of the fixing component that is exposed outside the counterweight to shield the fixing component.
3. The dumbbell structure with dual-mode adjustment function according to claim 2, characterized in that, The positioning mounting hole also has a pair of first slide rail grooves and a pair of second slide rail grooves corresponding to the positions of the first slide rail and the second slide rail. The counterweight block is connected to the round rod through the cooperation of the first slide rail, the first slide rail groove, the second slide rail, and the second slide rail groove.
4. The dumbbell structure with dual-mode adjustment function according to claim 3, characterized in that, The fixing component includes: A threaded rod that passes through the elongated mounting hole and the threaded groove to align and connect the counterweight and the round rod; A rotating block is formed at the end of the threaded rod that exposes the counterweight block, and a rubber block with a continuous arc-shaped array of edges is also fitted on its outside to facilitate twisting. The blocking component is fitted on the threaded rod and covers the rotating block when closed.
5. The dumbbell structure with dual-mode adjustment function according to claim 4, characterized in that, The shading component includes: The first cylinder is sleeved and connected to the threaded rod and located below the rotating block; The second cylinder is detachably threaded to the first cylinder, and after the first cylinder and the second cylinder are connected, they cover the rotating block. A connecting ring is connected to the outer walls of the first cylinder and the second cylinder.
6. The dumbbell structure with dual-mode adjustment function according to claim 5, characterized in that, The blocking component includes: The second docking rod and the rotating plate are integrally formed, and the second docking rod is detachably connected to the docking groove of the round rod; A blocking plate is formed at the connection between the second connecting rod and the rotating plate. When the second connecting rod is connected to the round rod, the blocking plate contacts the round rod to limit the distance between the blocking assembly and the mounting assembly, and restricts the counterweight between the limiting plate and the blocking plate in the axial direction of the dumbbell bar.
7. The dumbbell structure with dual-mode adjustment function according to claim 6, characterized in that, When the number of the combined modules is one, the two ends of the mounting component are respectively connected to the dumbbell bar and the blocking component.
8. The dumbbell structure with dual-mode adjustment function according to claim 7, characterized in that, When there are two or more combined modules, the two ends of the mounting component are respectively connected to the dumbbell bar and the blocking component, or respectively connected to the front mounting component and the rear mounting component, or respectively connected to the front mounting component and the blocking component.