Multifunctional combined dumbbell

Abstract

The utility model discloses a multifunctional combined dumbbell, which belongs to the technical field of dumbbells and comprises a dumbbell rod, two symmetrically distributed balancing weights are arranged on the outer surface of the dumbbell rod, two symmetrically distributed connecting rings are fixedly connected to the outer surface of the dumbbell rod, and extension columns are arranged in two sides of the dumbbell rod. By means of the sliding grooves and the inserting mechanism between the extension columns and the dumbbell rod, a user can easily adjust the length of the dumbbell to meet different training requirements or adapt to users with different heights and arm lengths, the flexibility of the dumbbell is improved, more use functions of the dumbbell can be expanded, and the practicability and multifunctionality of the dumbbell are improved.

Description

Technical Field

[0001] This utility model relates to the field of dumbbell technology, and more specifically, to a multifunctional combination dumbbell. Background Technology

[0002] Dumbbells are a simple piece of equipment used for training to increase muscle strength. They are usually a pair, shaped like short iron or plastic bars with metal plates (or "plates") of different weights at each end. These plates can be screwed onto the dumbbell bar to adjust the weight as needed. Dumbbells come in a wide range of weights, from a few pounds to hundreds of pounds, to suit different training levels and goals.

[0003] Patent CN211434912U discloses a modular multi-functional dumbbell, including a dumbbell assembly. The dumbbell assembly includes a pair of dumbbell bars, each dumbbell bar having a dumbbell grip. Threaded rods are fixed to both ends of the dumbbell grip along the axis. It also includes two pairs of adjustable weight blocks, each pair capable of being mounted on the threaded rods at both ends of the dumbbell bars. Furthermore, it includes a barbell assembly, including a barbell barrel. Internal threads 'a' are provided on the inner walls of both ends of the barbell barrel, and these internal threads 'a' can be matched with the threaded rods. This device enables the combined use of multiple equipment, fulfilling the need for various equipment during fitness activities, saving equipment costs and reducing the space occupied by fitness equipment.

[0004] Although the device has many benefits, the following problems still exist: While the dumbbell saves on equipment costs and reduces the space occupied by fitness equipment, traditional dumbbells have a single function, mainly used for strength training, and cannot meet diverse fitness needs. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a multifunctional combination dumbbell that solves the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a multifunctional combination dumbbell, including a dumbbell bar, two symmetrically distributed counterweights on the outer surface of the dumbbell bar, two symmetrically distributed connecting rings fixedly connected to the outer surface of the dumbbell bar, and extension columns on both sides of the dumbbell bar, and further including:

[0009] Two sets of plug-in components, both located on the outer surface of the connecting ring, are used to secure the extension post to the dumbbell bar;

[0010] A locking component, located on the outer surface of the dumbbell bar, is used to adjust the position of the weight on the dumbbell bar.

[0011] Preferably, the plug-in assembly includes a plug-in block, a fixing block, and a connecting post. The fixing block is fixedly connected to the outer surface of the connecting ring, the connecting post is movably connected to the inside of the fixing block, and the plug-in block is fixedly connected to the bottom of the connecting post.

[0012] Preferably, a telescopic spring is elastically connected between the fixing block and the connecting column. The telescopic spring is located inside the fixing block. A movable groove is provided on the outer surface of the fixing block. A snap-fit ​​column is slidably connected inside the movable groove. The snap-fit ​​column is fixedly connected to the connecting column.

[0013] Preferably, the movable groove is arranged in an L-shape.

[0014] Preferably, the outer surface of the extension column is provided with a plurality of equally spaced insertion slots, and the insertion block is inserted into the corresponding insertion slot.

[0015] Preferably, the inner wall of the dumbbell bar has two symmetrically distributed grooves, and the extension column is slidably connected to the two grooves.

[0016] Preferably, the locking assembly includes a first connecting block, a second connecting block, threads, and slots. The outer surface of the dumbbell bar has multiple interlocking slots located between two counterweights. The outer surface of the dumbbell bar is fixedly connected to two symmetrically distributed second connecting blocks. The outer surface of the dumbbell bar has two sets of symmetrically distributed threads. The outer surface of the dumbbell bar is threadedly connected to two symmetrically distributed first connecting blocks, both of which are located outside the two counterweights.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a multifunctional combination dumbbell with the following features:

[0019] Beneficial effects:

[0020] 1. This multi-functional combination dumbbell, through the sliding and plugging mechanism between the extension column and the dumbbell bar, allows users to easily adjust the length of the dumbbell to meet different training needs or adapt to users of different heights and arm lengths. This not only increases the flexibility of the dumbbell but also enables it to expand its functions, improving the practicality and versatility of the product.

[0021] 2. This multi-functional combination dumbbell allows for adjustment of the position of the weight blocks through multiple slots on the dumbbell bar. Combined with the rotating connection design of the first connecting block and the thread, users can freely change the distance between the weight blocks, thereby adjusting the center of gravity of the dumbbell or achieving different training effects, meeting the needs of personalized training and improving the adaptability and flexibility of the dumbbell. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0024] Figure 3 This is a schematic diagram of the slide groove structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the plug-in assembly structure of this utility model.

[0026] In the diagram: 1. Dumbbell bar; 2. Extension post; 3. Counterweight; 4. First connecting block; 5. Second connecting block; 6. Thread; 7. Insertion slot; 8. Connecting ring; 9. Groove; 10. Insertion block; 11. Fixing block; 12. Slide groove; 13. Connecting post; 14. Snap-fit ​​post; 15. Movable groove; 16. Telescopic spring. Detailed Implementation

[0027] 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 protection scope of the present utility model.

[0028] Please see Figure 1-4 This utility model provides a technical solution:

[0029] A multi-functional combination dumbbell includes a dumbbell bar 1, with two symmetrically distributed counterweights 3 on the outer surface of the dumbbell bar 1, and two symmetrically distributed connecting rings 8 fixedly connected to the outer surface of the dumbbell bar 1. Extension posts 2 are provided inside both sides of the dumbbell bar 1. It also includes:

[0030] Two sets of plug-in components, both located on the outer surface of the connecting ring 8, are used to fix the extension post 2 to the dumbbell bar 1;

[0031] A locking component, located on the outer surface of the dumbbell bar 1, is used to adjust the position of the counterweight 3 on the dumbbell bar 1. Connecting rings 8 are provided at both ends of the dumbbell bar 1 for fixing and connecting other components. Two counterweights 3 are slidably connected on the dumbbell bar 1, and their positions can be adjusted as needed.

[0032] Furthermore, the plug-in assembly includes a plug-in block 10, a fixing block 11, and a connecting post 13. The fixing block 11 is fixedly connected to the outer surface of the connecting ring 8, and the connecting post 13 is movably connected inside the fixing block 11. The plug-in block 10 is fixedly connected to the bottom of the connecting post 13. By pushing the connecting post 13 located on the fixing block 11, the plug-in block 10 is aligned with the plug-in groove 7 on the outer surface of the extension post 2 and inserted, thereby fixing the extension post 2 during the connection process.

[0033] Furthermore, a telescopic spring 16 is elastically connected between the fixing block 11 and the connecting post 13. The telescopic spring 16 is located inside the fixing block 11. A movable groove 15 is provided on the outer surface of the fixing block 11. A snap-fit ​​post 14 is slidably connected inside the movable groove 15. The snap-fit ​​post 14 is fixedly connected to the connecting post 13. The telescopic spring 16 provides a downward elastic force to the connecting post 13 to ensure that the plug-in block 10 is tightly connected to the plug-in groove 7.

[0034] Furthermore, the movable groove 15 is designed in an L-shape, which facilitates the snap-fit ​​of the snap-fit ​​post 14.

[0035] Furthermore, the outer surface of the extension column 2 is provided with multiple equally spaced insertion slots 7. The insertion block 10 is inserted into the corresponding insertion slot 7, so that the insertion block 10 is aligned with the insertion slot 7 on the outer surface of the extension column 2 and inserted, thereby fixing the extension column 2.

[0036] Furthermore, the inner wall of the dumbbell bar 1 has two symmetrically distributed grooves 12, and the extension column 2 is slidably connected to the two grooves 12, so that the extension column 2 can slide out of the grooves 12 of the dumbbell bar 1 to the appropriate position.

[0037] Furthermore, the locking assembly includes a first connecting block 4, a second connecting block 5, a thread 6, and a slot 9. Multiple interlocking slots 9 are formed on the outer surface of the dumbbell bar 1, located between two counterweights 3. Two symmetrically distributed second connecting blocks 5 are fixedly connected to the outer surface of the dumbbell bar 1. Two sets of symmetrically distributed threads 6 are formed on the outer surface of the dumbbell bar 1. Two symmetrically distributed first connecting blocks 4 are threadedly connected to the outer surface of the dumbbell bar 1. Both first connecting blocks 4 are located outside the two counterweights 3. By rotating the first connecting block 4 to connect with the thread 6, the distance between the two counterweights 3 can be changed, thereby adjusting the center of gravity of the dumbbell or achieving different training effects. The second connecting block 5 serves as a support point, ensuring the counterweights 3 remain stable during movement. When the first connecting block 4 rotates to the desired position, it engages tightly with the thread 6 of the dumbbell bar 1, locking the counterweights 3.

[0038] Working principle: When the operator needs to use this multi-functional combination dumbbell, or needs to increase the length of the dumbbell or perform other functional extensions, the extension post 2 is slid out of the groove 12 of the dumbbell bar 1 to the appropriate position. By pushing the connecting post 13 located on the fixing block 11, the insertion block 10 is aligned with the insertion groove 7 on the outer surface of the extension post 2 and inserted, thus fixing the extension post 2. During the connection process, the telescopic spring 16 provides downward elastic force to the connecting post 13, ensuring that the insertion block 10 is tightly connected to the insertion groove 7 and is not easy to fall off. The locking post 14 slides in the movable groove 15. When the insertion block 10 is fully inserted into the insertion groove 7, the locking post 14 will lock into the corresponding position of the fixing block 11, forming a double lock and enhancing the stability of the connection. When further adjustment is needed, it can be... The movable locking post 14 moves within the movable slot 15, locking the post 14 onto the top of the movable slot 15, thereby disengaging the insertion block 10 from the insertion slot 7. Multiple slots 9 on the outer surface of the dumbbell bar 1 allow for position adjustment of the weight block 3 on the dumbbell bar 1. By rotating the first connecting block 4 connected to the thread 6, the distance between the two weight blocks 3 can be changed, thereby adjusting the dumbbell's center of gravity or achieving different training effects. The second connecting block 5 serves as a support point, ensuring the weight block 3 remains stable during movement. When the first connecting block 4 rotates to the desired position, it tightly engages with the thread 6 of the dumbbell bar 1, locking the weight block 3 and preventing displacement during training. The multiple slots 9 increase friction, facilitating user operation.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multifunctional combined dumbbell comprising a dumbbell rod (1), the outer surface of the dumbbell rod (1) is provided with two symmetrical distributed counterweights (3), characterized in that: The outer surface of the dumbbell rod (1) is fixedly connected with two symmetrically distributed connecting rings (8), both sides of the dumbbell rod (1) are provided with extension columns (2), and further comprises: Two groups of plug-in assemblies are located on the outer surface of the connecting ring (8) and used for fixing the extension column (2) on the dumbbell rod (1); A locking assembly is located on the outer surface of the dumbbell rod (1) and used for adjusting the position of the weight block (3) on the dumbbell rod (1).

2. The multi-functional combination dumbbell according to claim 1, wherein: The plug-in assembly comprises a plug-in block (10), a fixed block (11) and a connecting column (13), the outer surface of the connecting ring (8) is fixedly connected with the fixed block (11), the inner part of the fixed block (11) is movably connected with the connecting column (13), and the bottom of the connecting column (13) is fixedly connected with the plug-in block (10).

3. The multi-functional combination dumbbell of claim 2, wherein: Elastic springs (16) are elastically connected between the fixed block (11) and the connecting column (13), the elastic springs (16) are located in the inner part of the fixed block (11), the outer surface of the fixed block (11) is provided with a movable groove (15), the inner part of the movable groove (15) is slidably connected with a clamping column (14), and the clamping column (14) is fixedly connected with the connecting column (13).

4. The multi-functional combination dumbbell of claim 3, wherein: The movable groove (15) is in L-shaped structure.

5. The multi-functional combination dumbbell of claim 2, wherein: The outer surface of the extension column (2) is provided with a plurality of equidistantly distributed plug-in grooves (7), and the plug-in block (10) is plugged into the corresponding plug-in groove (7).

6. The multi-functional combination dumbbell of claim 1, wherein: The inner wall of the dumbbell rod (1) is provided with two symmetrically distributed sliding grooves (12), and the extension column (2) is slidably connected with the two sliding grooves (12).

7. The multi-functional combination dumbbell of claim 1, wherein: The locking assembly comprises a first connecting block (4), a second connecting block (5), a screw (6) and a notch (9), the outer surface of the dumbbell rod (1) is provided with a plurality of interlaced notches (9), the notches (9) are located between the two weight blocks (3), the outer surface of the dumbbell rod (1) is fixedly connected with two symmetrically distributed second connecting blocks (5), the outer surface of the dumbbell rod (1) is provided with two symmetrically distributed screws (6), the outer surface of the dumbbell rod (1) is screw-connected with two symmetrically distributed first connecting blocks (4), and the two first connecting blocks (4) are located on the outer sides of the two weight blocks (3).

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