Adjusting structure for dumbbell, kettle-bell and barbell set

Abstract

The adjusting structure comprises a fixed holding rod, conical threads are arranged on the outer surface, close to the right side edge, of the fixed holding rod, an opening is formed in the outer surface, close to the right side edge, of the fixed holding rod, the right side of the fixed holding rod is in threaded connection with a fixed sleeve, and the fixed sleeve is in threaded connection with the right side of the fixed holding rod. A conical internal thread is arranged in the fixing sleeve, an adjusting holding rod is slidably connected to the interior of the fixing holding rod, dumbbell pieces are slidably connected to the two sides of the adjusting holding rod, limiting blocks are matched with the outer surfaces, close to the edge, of the two sides of the adjusting holding rod, and the limiting blocks are located on the outer sides of the dumbbell pieces. By means of the structure, the fixing sleeve and the fixing holding rod can be in threaded connection through cooperation of the conical internal threads in the fixing sleeve and the conical threads on the outer surface of the fixing holding rod, so that the fixing sleeve extrudes the fixing holding rod, and movement of the adjusting holding rod in the fixing holding rod is limited.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, specifically an adjustment structure for dumbbell, kettlebell, and barbell sets. Background Technology

[0002] Dumbbells are a common strength training tool, consisting of a handle in the middle and weights at both ends. They are typically made of metal or rubber and come in both fixed-weight and adjustable-weight versions. Despite their simple design, dumbbells are versatile, allowing for single-arm or double-arm training. Through various movements (such as curls, presses, and squats), they effectively work all muscle groups, enhancing strength, endurance, and muscle coordination. Their compact size makes them suitable for home workouts or gyms. They can be used independently or in combination with other equipment, making them a practical tool for fitness enthusiasts to improve muscle mass and sculpt their bodies.

[0003] Most existing dumbbell / barbell handles are non-adjustable, with protruding bar tips at both ends during use. This can cause injury, especially when the number of plates is minimal, as the protruding bar tips can collide with the handle and cause injury. To reduce the risk of injury from equipment during exercise, we provide an adjustable mechanism for dumbbell, kettlebell, and barbell sets. Summary of the Invention

[0004] This utility model provides an adjustment structure for dumbbell, kettlebell, and barbell sets. The fixed sleeve and the fixed grip bar are threaded together by the tapered internal thread inside the fixed sleeve and the tapered thread on the outer surface of the fixed grip bar. This allows the fixed sleeve to compress the fixed grip bar, thereby restricting the movement of the adjustable grip bar inside the fixed grip bar.

[0005] To achieve the above objectives, an adjustment structure for dumbbell, kettlebell, and barbell sets is provided, including a fixed grip bar with tapered threads on its outer surface near the right edge. An opening is formed on the outer surface of the fixed grip bar near the right edge. A fixed sleeve is threaded to the right side of the fixed grip bar, and the fixed sleeve has a tapered internal thread. An adjusting grip bar is slidably connected inside the fixed grip bar. Dumbbell plates are slidably connected to both sides of the adjusting grip bar. Limiting blocks are fitted to the outer surfaces of the adjusting grip bar near the edges on both sides. The limiting blocks are located outside the dumbbell plates and are used to lock the dumbbell plates.

[0006] According to the aforementioned adjustment structure for dumbbell, kettlebell, and barbell sets, an anti-slip plate is fixedly connected to the outer surface of the fixed grip bar, and scale lines are provided on the outer surface of the adjustable grip bar.

[0007] According to the aforementioned adjustment structure for dumbbell, kettlebell, and barbell sets, a groove is provided on the outer surface of the adjustment grip, and a slider is fixedly connected to the inner surface of the dumbbell plate. The slider and the groove make the dumbbell plate more stable during use.

[0008] According to the aforementioned adjustment structure for dumbbell, kettlebell, and barbell sets, the outer surface of the dumbbell plates is provided with a weight mark, and the slider and the groove are slidably connected.

[0009] According to the aforementioned adjustment structure for dumbbell, kettlebell, and barbell sets, the outer surface of the fixed sleeve is provided with a triangular index and a locking mark.

[0010] According to the aforementioned adjustment structure for dumbbell, kettlebell, and barbell sets, the outer surface of the fixed sleeve is provided with an unlocking mark, and the edges of the dumbbell plates are rounded.

[0011] According to the aforementioned adjustment structure for dumbbell, kettlebell, and barbell sets, the corners of the dumbbell plates are chamfered.

[0012] The beneficial effects of this utility model are: the barbell / dumbbell rod length adjustment is achieved through a simple rotation and tapered thread structure, the structure is simpler, the operation is more convenient, and the production cost is reduced.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of the overall structure of an adjustment structure for dumbbell, kettlebell, and barbell sets according to the present invention.

[0016] Figure 2 This is a schematic diagram of a fixed grip structure for an adjustment structure of dumbbells, kettlebells, and barbell sets according to the present invention;

[0017] Figure 3 This is a schematic diagram of the adjusting grip structure for an adjusting structure of dumbbells, kettlebells, and barbell sets according to the present invention;

[0018] Figure 4 This is a schematic diagram of a dumbbell plate structure for an adjustment structure of dumbbell, kettlebell, and barbell sets according to the present invention.

[0019] Figure 5 This is a schematic diagram of a fixing sleeve structure for an adjustment structure of dumbbell, kettlebell, and barbell sets according to the present invention.

[0020] Figure 6 This is an enlarged view of point A of an adjustment structure for dumbbell, kettlebell, and barbell sets according to the present invention.

[0021] Legend:

[0022] 1. Fixed grip; 2. Fixed sleeve; 3. Adjustable grip; 4. Limit block; 5. Dumbbell plate; 6. Tapered thread; 7. Tapered internal thread; 8. Opening; 9. Anti-slip plate; 10. Unlock mark; 11. Lock mark; 12. Triangular indicator; 13. Slide groove; 14. Scale line; 15. Weight mark; 16. Slider. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figures 1 to 6 This utility model provides an adjustment structure for dumbbell, kettlebell, and barbell sets, comprising a fixed grip bar 1. The outer surface of the fixed grip bar 1 near its right edge has tapered threads 6. An opening 8 is formed on the outer surface of the fixed grip bar 1 near its right edge. A fixed sleeve 2 is threaded to the right side of the fixed grip bar 1. The fixed sleeve 2 has tapered internal threads 7. An adjusting grip bar 3 is slidably connected inside the fixed grip bar 1. Dumbbell plates 5 are slidably connected to both sides of the adjusting grip bar 3. Limiting blocks 4 are fitted to the outer surfaces of the adjusting grip bar 3 near its edges, located outside the dumbbell plates 5. An anti-slip plate 9 is fixedly connected to the outer surface of the fixed grip bar 1. The outer surface of the adjusting grip bar 3 has scale lines 14 and a groove 13. The dumbbell... The inner surface of the dumbbell plate 5 is fixedly connected to a slider 16, and the outer surface of the dumbbell plate 5 is marked with a weight number 15. The slider 16 and the groove 13 are slidably connected. The outer surface of the fixing sleeve 2 is marked with a triangular indicator 12, a locking mark 11, and an unlocking mark 10. The edges of the dumbbell plate 5 are rounded, and the corners of the dumbbell plate 5 are chamfered. The tapered thread 6 (also known as a tapered thread or tapered pipe thread) is a tapered thread design whose diameter gradually increases or decreases along the axial direction to form a tapered thread structure. The weight number 15 allows the user to clearly see the weight of the dumbbell plate 5. The rounded edges and chamfered corners of the dumbbell plate 5 make the dumbbell plate 5 safer to use.

[0025] Working principle: The end of the fixed grip bar 1 has an opening 8 and a tapered thread 6. It is connected to the fixed sleeve 2 through the tapered internal thread 7. This allows the opening 8 of the fixed grip bar 1 to be reduced or enlarged, thereby limiting the movement of the adjustable grip bar 3 and shortening the distance between the dumbbell plates 5 and the dumbbell plates, reducing the risk of accidental injury to the human body.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An adjustment structure for dumbbell, kettlebell, and barbell sets, characterized in that, The device includes a fixed grip (1), which has tapered threads (6) on its outer surface near the right edge and an opening (8) on its outer surface near the right edge. A fixed sleeve (2) is threaded to the right side of the fixed grip (1), and a tapered internal thread (7) is provided inside the fixed sleeve (2). An adjustable grip (3) is slidably connected inside the fixed grip (1), and dumbbell plates (5) are slidably connected to both sides of the adjustable grip (3). Limiting blocks (4) are fitted to the outer surfaces of both sides of the adjustable grip (3) near the edge, and the limiting blocks (4) are located outside the dumbbell plates (5).

2. The adjustment structure for dumbbell, kettlebell, and barbell sets according to claim 1, characterized in that, The outer surface of the fixed grip (1) is fixedly connected with an anti-slip plate (9), and the outer surface of the adjustable grip (3) is provided with scale lines (14).

3. The adjustment structure for dumbbell, kettlebell, and barbell sets according to claim 1, characterized in that, The outer surface of the adjustable grip (3) is provided with a sliding groove (13), and the inner surface of the dumbbell plate (5) is fixedly connected with a slider (16).

4. The adjustment structure for dumbbell, kettlebell, and barbell sets according to claim 3, characterized in that, The outer surface of the dumbbell plate (5) is provided with a weight number (15), and the slider (16) and the groove (13) are slidably connected.

5. The adjustment structure for dumbbell, kettlebell, and barbell sets according to claim 1, characterized in that, The outer surface of the fixing sleeve (2) is provided with a triangular index (12) and a locking mark (11).

6. The adjustment structure for dumbbell, kettlebell, and barbell sets according to claim 1, characterized in that, The outer surface of the fixing sleeve (2) is provided with an unlocking mark (10), and the edges of the dumbbell plate (5) are rounded.

7. The adjustment structure for dumbbell, kettlebell, and barbell sets according to claim 1, characterized in that, The corners of the dumbbell plates (5) are chamfered.

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