A novel tightly connected combination dumbbell

Abstract

This utility model relates to the field of fitness equipment technology, and in particular to a novel tightly connected dumbbell. The utility model includes a dumbbell bar, with limiting rings fixed to the middle of both outer ends of the dumbbell bar, and limiting strips fixed to both outer ends of the dumbbell bar. The ends of the limiting strips that are close to each other are fixed to the limiting rings. Several dumbbell plates are slidably connected to the outer sides of the limiting strips. Adjusting rings are slidably connected to both outer ends of the dumbbell bar. Guide blocks are fixed to the top and bottom of one end of each adjusting ring. Locking blocks are slidably connected inside the guide blocks, and the ends of the two locking blocks that are close to each other are engaged with the dumbbell bar. This utility model provides a novel tightly connected dumbbell that uses adjusting rings to compress several dumbbell plates, and then locks them into corresponding slots using locking blocks, thereby effectively limiting and fixing different numbers of dumbbell plates, and effectively adding or removing plates according to gravity requirements.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to a novel tightly connected dumbbell. Background Technology

[0002] Fitness exercises refer to physical activities conducted by using specialized and scientific movements and methods, either without equipment or with the aid of various devices, with the aim of developing muscles, increasing physical strength, improving physique, and cultivating character.

[0003] When using the above technology, the following technical problems were found in the existing technology:

[0004] Currently, most commercially available combination dumbbells typically employ an assembly structure of a round dumbbell bar, dumbbell plates, and a nut. In this design, the dumbbell plates are fitted onto the round dumbbell bar and secured primarily by the nut's contact. However, this traditional structure has significant drawbacks: First, the nut is prone to rotation during use, causing gaps between the dumbbell plates and affecting the tightness of the connection. Second, insufficient clamping force from the nut can easily cause the dumbbell plates to loosen or even fall off. Most importantly, the dumbbell plates may rotate during use, and this rotational force not only affects training effectiveness but may also pose a risk of wrist strain to the exerciser. Therefore, we have designed a novel, tightly connected combination dumbbell to provide an alternative technical solution to the aforementioned problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A novel tightly connected dumbbell includes a dumbbell bar with a limiting ring fixed to the middle of each of its outer ends. A limiting strip is also fixed to each of the outer ends of the dumbbell bar, with the ends of the limiting strips close to each other fixed to the limiting rings. Several dumbbell plates are slidably connected to the outer sides of the limiting strips. Adjusting rings are slidably connected to each of the outer ends of the dumbbell bar. Guide blocks are fixed to the top and bottom of one end of each adjusting ring, and locking blocks are slidably connected inside the guide blocks. The ends of two locking blocks close to each other engage with the dumbbell bar.

[0007] In a preferred embodiment of the novel tightly connected dumbbell provided by this utility model, an A guide groove is provided on the inner side of the adjusting ring, and a B guide groove is provided on the inner side of the dumbbell plate. The inner sides of the A guide groove and the B guide groove are slidably connected to the limiting strip.

[0008] As a preferred embodiment of the novel tightly connected dumbbell provided by this utility model, the top and bottom ends of both ends of the dumbbell bar are provided with several slots, and the ends of the two blocks that are close to each other are slidably connected to the corresponding slots.

[0009] As a preferred embodiment of the novel tightly connected dumbbell provided by this utility model, a limiting mechanism is provided on the outer side of the adjusting ring for engaging the locking block with the corresponding locking slot. The limiting mechanism includes a rotating ring, a return spring, and a return assembly. The rotating ring is rotatably connected to the outer side of the adjusting ring. An arc-shaped rail is provided at the bottom end of the top end on one side of the rotating ring. A return spring is slidably connected to the inner side of the arc-shaped rail. One end of the return spring is fixed to the locking block.

[0010] In a preferred embodiment of the novel tightly connected dumbbell provided by this utility model, the reset assembly includes a belt spring, and a belt spring is assembled between the adjusting ring and the rotating ring. One end of the outer side of the belt spring is fixed to the rotating ring, and the other end of the inner side of the belt spring is fixed to the adjusting ring.

[0011] In a preferred embodiment of the novel tightly connected dumbbell provided by this utility model, several anti-slip pads are fixed on the outer side of the swivel.

[0012] In a preferred embodiment of the novel tightly connected dumbbell provided by this utility model, an anti-slip strip is sleeved in the middle of the outer side of the dumbbell bar.

[0013] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0014] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0015] This utility model provides a novel tightly connected dumbbell assembly. A counter-clockwise rotating ring drives an arc-shaped rail to rotate, causing the belt spring to contract. This, in turn, causes the arc-shaped rail to slide away from the dumbbell bar, along with a return spring and a locking block. The sliding ring then compresses several dumbbell plates with an adjusting ring and the locking block, releasing the ring. The elastic release of the belt spring causes the ring to rotate clockwise, allowing the arc-shaped rail, return spring, and locking block to engage with corresponding slots. This effectively limits the tightness between the dumbbell plates. Simultaneously, rotating the ring causes the locking block to disengage from its slot, allowing for quick addition and removal of plates according to the user's weight requirements. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure between the dumbbell bar and the dumbbell plates of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure between the adjusting ring and the limiting strip of this utility model;

[0020] Figure 4 This is a schematic diagram of the limiting mechanism of this utility model.

[0021] In the diagram: 1. Dumbbell bar; 2. Anti-slip strip; 3. Dumbbell plate; 4. Limiting ring; 5. Limiting strip; 6. Slot; 7. Adjusting ring; 8. Rotary ring; 9. Curved rail; 10. Locking block; 11. Guide block; 12. Anti-slip pad; 13. Belt spring; 14. Return spring; 15. A guide groove; 16. B guide groove. Detailed Implementation

[0022] 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 present utility model.

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] Please refer to Figures 1-4A novel tightly connected dumbbell includes a dumbbell bar 1, with limiting rings 4 fixed at the middle of both outer ends of the dumbbell bar 1, and limiting strips 5 fixed at both outer ends of the dumbbell bar 1. The ends of the limiting strips 5 that are close to each other are fixed to the limiting rings 4 respectively. Several dumbbell plates 3 are slidably connected to the outer side of the limiting strips 5. Adjusting rings 7 are slidably connected to both outer ends of the dumbbell bar 1. An A guide groove 15 is opened on the inner side of the adjusting ring 7, and a B guide groove 16 is opened on the inner side of the dumbbell plates 3. The inner sides of the A guide groove 15 and the B guide groove 16 are slidably connected to the limiting strips 5. A guide block 11 is fixed at the top and bottom of one end of the adjusting ring 7. A locking block 10 is slidably connected inside the guide block 11. The ends of the two locking blocks 10 that are close to each other are engaged with the dumbbell bar 1. Several locking slots 6 are opened at the top and bottom of both ends of the dumbbell bar 1. The ends of the two locking blocks 10 that are close to each other are slidably connected to the corresponding locking slots 6 respectively.

[0027] In use, several dumbbell plates 3 are slidably installed onto the limiting strips 5 at both ends of the dumbbell bar 1, thereby effectively adding plates according to the weight adapted to the exerciser. Then, the adjusting ring 7 is used to press the dumbbell plates 3, and the locking block 10 is engaged with the corresponding locking slot 6, thereby effectively limiting and fixing different numbers of dumbbell plates 3, and effectively adding or removing plates according to the exerciser's weight requirements. The limiting strips 5 effectively limit the dumbbell plates 3 and the adjusting ring 7, preventing the dumbbell plates 3 and the adjusting ring 7 from rotating and causing instability in the device during use.

[0028] The outer side of the adjusting ring 7 is provided with a limiting mechanism for engaging the locking block 10 with the corresponding locking slot 6. The limiting mechanism includes a rotating ring 8, a return spring 14 and a reset assembly. The outer side of the adjusting ring 7 is rotatably connected to the rotating ring 8. An arc-shaped rail 9 is provided at the top and bottom of one side of the rotating ring 8. The inner side of the arc-shaped rail 9 is slidably connected to the return spring 14. One end of the return spring 14 is fixed to the locking block 10.

[0029] The reset assembly includes a belt spring 13. The belt spring 13 is assembled between the adjusting ring 7 and the rotating ring 8. One end of the outer side of the belt spring 13 is fixed to the rotating ring 8, and the other end of the inner side of the belt spring 13 is fixed to the adjusting ring 7.

[0030] Specifically, when the exerciser places several dumbbell plates 3 on the outside of the limiting strip 5, the adjusting ring 7 is then placed on the outside of the limiting strip 5. Rotating the rotating ring 8 counterclockwise causes the arc-shaped rail 9 to rotate. At this point, the adjusting ring 7 cannot rotate due to the limitation of the limiting strip 5, while the counterclockwise rotation of the rotating ring 8 contracts the belt spring 13. The arc-shaped rail 9 then causes the return spring 14 and the locking block 10 to slide away from the dumbbell bar 1. The sliding rotating ring 8 then causes the adjusting ring 7 and the locking block 10 to press against the dumbbell plates 3, thus releasing the rotating ring 8. The elastic release of the belt spring 13 causes the rotating ring 8 to rotate clockwise, allowing the arc-shaped rail 9 to engage with the return spring 14 and the locking block 10 in the corresponding slot 6, thus limiting the dumbbell plates 3 and effectively improving the tightness between them.

[0031] Several anti-slip pads 12 are fixed to the outside of the rotating ring 8, and the rotating ring 8 can be manually rotated effectively through the anti-slip pads 12;

[0032] An anti-slip strip 2 is attached to the middle of the outer side of the dumbbell bar 1, which effectively increases the anti-slip effect on the exerciser's hands.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A novel tightly connected dumbbell, characterized in that, The dumbbell bar (1) includes a limiting ring (4) fixed at the middle of both outer ends of the dumbbell bar (1), and a limiting strip (5) fixed at both outer ends of the dumbbell bar (1). The ends of the limiting strips (5) that are close to each other are fixed to the limiting rings (4). Several dumbbell plates (3) are slidably connected to the outer side of the limiting strips (5). Adjusting rings (7) are slidably connected to both outer ends of the dumbbell bar (1). Guide blocks (11) are fixed at the top and bottom of one end of the adjusting ring (7). A locking block (10) is slidably connected inside the guide block (11). The ends of the two locking blocks (10) that are close to each other are engaged with the dumbbell bar (1).

2. The novel tightly connected dumbbell according to claim 1, characterized in that, The inner side of the adjusting ring (7) is provided with a guide groove A (15), and the inner side of the dumbbell plate (3) is provided with a guide groove B (16). The inner sides of the guide groove A (15) and the guide groove B (16) are slidably connected to the limiting strip (5).

3. A novel tightly connected dumbbell according to claim 2, characterized in that, The dumbbell bar (1) has several slots (6) at its top and bottom ends, and the two locking blocks (10) are slidably connected to the corresponding slots (6) at their close ends.

4. A novel tightly connected dumbbell according to claim 2, characterized in that, The outer side of the adjusting ring (7) is provided with a limiting mechanism for engaging the locking block (10) with the corresponding locking slot (6). The limiting mechanism includes a rotating ring (8), a reset spring (14), and a reset assembly. The outer side of the adjusting ring (7) is rotatably connected to the rotating ring (8). The bottom end of the top end of one side of the rotating ring (8) is provided with an arc-shaped rail (9). The inner side of the arc-shaped rail (9) is slidably connected to the reset spring (14). One end of the reset spring (14) is fixed to the locking block (10).

5. A novel tightly connected dumbbell according to claim 4, characterized in that, The reset assembly includes a belt spring (13), and the belt spring (13) is assembled between the adjusting ring (7) and the rotating ring (8). One end of the belt spring (13) on the outside is fixed to the rotating ring (8), and the other end of the belt spring (13) on the inside is fixed to the adjusting ring (7).

6. A novel tightly connected dumbbell according to claim 5, characterized in that, Several anti-slip pads (12) are fixed on the outer side of the rotating ring (8).

7. A novel tightly connected dumbbell according to claim 2, characterized in that, An anti-slip strip (2) is fitted onto the middle of the outer side of the dumbbell bar (1).

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