Weight-adjustable training shot

Abstract

The utility model relates to the technical field of sporting goods, and discloses a weight-adjustable training shot to solve the technical problems that an existing shot cannot meet the requirement that the balance weight cannot be adjusted under the condition that the size is not changed, and matched teaching according to materials cannot be carried out for different students within effective teaching time. Comprising a first hemisphere, a second hemisphere and a base plate, the base plate is a circular plate body, connecting screws are arranged at the centers of the upper end and the lower end of the base plate respectively, the first hemisphere and the second hemisphere are each of a hemisphere structure with an inner cavity, and connecting cylinders are arranged on the inner side of the first hemisphere and the inner side of the second hemisphere respectively; the first hemisphere, the second hemisphere and the base plate form a detachable connecting structure through the connecting screws and the connecting cylinders. A plurality of mounting rods are arranged at the upper end and the lower end of the base plate respectively, threads are arranged at the top ends of the mounting rods, the mounting rods are sleeved with a plurality of balancing weights, and nuts in threaded connection are arranged at the top ends of the mounting rods.

Description

Technical Field

[0001] This utility model relates to the field of sports equipment technology, specifically to a training shot put with adjustable weight. Background Technology

[0002] Shot put is a track and field event in which the athlete uses the strength of the whole body to push a shot put of a certain weight from the shoulder with the arms. Depending on the weight, the shot put will often be larger and larger. Currently, shot puts are usually set in different weight classes, and people usually choose the corresponding weight for practice. In the process of physical education teaching, it is not possible to adjust the weight according to the different athletic abilities of different people.

[0003] In actual teaching and training, it has been found that the size of the shot put has a significant impact on the throwing posture. A shot put that is too large or too small often directly affects the throwing motion, not only easily causing distorted throwing technique and affecting throwing performance, but also increasing the risk of injury due to incorrect throwing posture. Using shot puts of different sizes and weights for training and instruction prevents muscles from forming motor memory and hinders rapid improvement in athletic performance. Furthermore, existing shot puts cannot allow for weight adjustment while maintaining a constant size, making it impossible to provide individualized instruction tailored to different students within the limited teaching time. Utility Model Content

[0004] The technical problem to be solved by this invention is to overcome the defects of the above-mentioned technology and provide a training shot put with adjustable weight.

[0005] To solve the above-mentioned technical problems, the present invention provides a weight-adjustable training shot put, comprising a first hemisphere, a second hemisphere, a base plate, and an elastic washer. The base plate is a circular plate with connecting screws fixedly connected to the center of its upper and lower ends. The first hemisphere and the second hemisphere are both hemisphere structures with internal cavities. The inner sides of the first hemisphere and the second hemisphere are respectively provided with connecting cylinders corresponding to the connecting screws. The first hemisphere, the second hemisphere, and the base plate form a detachable connection structure through the connecting screws and the connecting cylinders.

[0006] The substrate is provided with multiple mounting rods at its upper and lower ends, the top of each mounting rod is threaded, multiple counterweights are sleeved on the mounting rod, and the top of each mounting rod is provided with a threaded nut.

[0007] Furthermore, the connecting cylinder is provided with threads, and the connecting screw is threadedly connected to the connecting cylinder.

[0008] Furthermore, multiple mounting rods are respectively provided at the upper and lower ends of the substrate along the circumferential direction, and the mounting rods are fixedly connected to the substrate.

[0009] Furthermore, the counterweight has a connection hole corresponding to the mounting rod.

[0010] Furthermore, the nut is a hexagonal nut or a wing nut.

[0011] Furthermore, an elastic washer is provided between the first hemisphere and the second hemisphere. The elastic washer has a circular ring structure, and the inner diameter of the elastic washer is the same as the outer diameter of the substrate.

[0012] The advantages of this invention compared with the prior art are as follows: This device connects the first hemisphere, the second hemisphere, and the base plate through a connecting cylinder and a connecting screw. At the same time, the number of counterweights on the base plate can be adjusted according to the required conditions, making it easy to adjust the weight while maintaining the original shape of the lead ball. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a training shot put with adjustable weight according to the present invention;

[0014] Figure 2 This utility model relates to an explosion mechanism for a training shot put with adjustable weight. Figure 1 ;

[0015] Figure 3 This utility model relates to an explosion mechanism for a training shot put with adjustable weight. Figure 2 .

[0016] As shown in the figure: 1. Hemisphere No. 1, 2. Hemisphere No. 2, 3. Base plate, 4. Elastic washer, 5. Connecting screw, 6. Connecting cylinder, 7. Mounting rod, 8. Counterweight, 9. Nut. Detailed Implementation

[0017] The following is a detailed description of an adjustable-weight training shot put according to the present invention, with reference to the accompanying drawings.

[0018] Referring to the accompanying drawings, a weight-adjustable training shot put includes a first hemisphere 1, a second hemisphere 2, a base plate 3, and an elastic washer 4. The base plate 3 is a circular plate with connecting screws 5 fixedly connected to the center of its upper and lower ends. The first hemisphere 1 and the second hemisphere 2 are both hemisphere structures with inner cavities. The inner sides of the first hemisphere 1 and the second hemisphere 2 are respectively provided with connecting cylinders 6 corresponding to the connecting screws 5. The first hemisphere 1, the second hemisphere 2, and the base plate 3 form a detachable connection structure through the connecting screws 5 and the connecting cylinders 6.

[0019] The base plate 3 is provided with multiple mounting rods 7 at its upper and lower ends respectively. The top end of the mounting rod 7 is threaded. Multiple counterweights 8 are sleeved on the mounting rod 7. The top end of the mounting rod 7 is provided with a threaded nut 9.

[0020] In a preferred embodiment of this invention, the connecting cylinder 6 is provided with threads, and the connecting screw 5 is threadedly connected to the connecting cylinder 6.

[0021] In a preferred embodiment of this invention, the upper and lower ends of the substrate 3 are respectively provided with a plurality of mounting rods 7 arranged circumferentially, and the mounting rods 7 are fixedly connected to the substrate 3.

[0022] In a preferred embodiment of this invention, the counterweight 8 is provided with a connection hole corresponding to the mounting rod 7.

[0023] In a preferred embodiment of this invention, the nut 9 is a hexagonal nut or a wing nut.

[0024] In a preferred embodiment of this invention, an elastic washer 4 is provided between the first hemisphere 1 and the second hemisphere 2. The elastic washer 4 is a circular ring structure, and the inner diameter of the elastic washer 4 is the same as the outer diameter of the substrate 3. The elastic washer 4 can be sleeved on the outside of the substrate 3.

[0025] In the specific implementation of this utility model, since the first hemisphere 1, the second hemisphere 2 and the substrate 3 form a detachable connection structure through the connecting screw 5 and the connecting cylinder 6, when it is necessary to adjust the weight of the lead ball, the first hemisphere 1 and the second hemisphere 2 are rotated respectively to disengage them from the substrate 3.

[0026] Then, by rotating the nut 9, the nut 9 is disengaged from the mounting rod 7. At this time, the number of counterweights 8 placed on the mounting rod 7 can be adjusted as needed. After adjustment, the nut 9 is reconnected to the mounting rod 7 to fix the counterweights 8. Finally, the first hemisphere 1, the second hemisphere 2 and the base plate 3 are connected by the threaded connection of the connecting screw 5 and the connecting cylinder 6.

[0027] Meanwhile, in order to reduce wear caused by hard contact between hemisphere 1 and hemisphere 2, an elastic washer 4 is provided between hemisphere 1 and hemisphere 2. The elastic washer 4 is a ring structure, and the inner diameter of the elastic washer 4 is the same as the outer diameter of the substrate 3.

[0028] This device allows for convenient weight adjustment while maintaining the original shape of the shot put.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A weight-adjustable training shot put, characterized in that, It includes a first hemisphere (1), a second hemisphere (2), a base plate (3), and an elastic washer (4). The base plate (3) is a circular plate with connecting screws (5) fixedly connected at the center of its upper and lower ends. The first hemisphere (1) and the second hemisphere (2) are hemisphere structures with inner cavities. The inner sides of the first hemisphere (1) and the second hemisphere (2) are respectively provided with connecting cylinders (6) corresponding to the connecting screws (5). The first hemisphere (1), the second hemisphere (2), and the base plate (3) form a detachable connection structure through the connecting screws (5) and the connecting cylinders (6). The base plate (3) has multiple mounting rods (7) at its upper and lower ends respectively. The top end of the mounting rod (7) is threaded. Multiple counterweights (8) are sleeved on the mounting rod (7). The top end of the mounting rod (7) is provided with a nut (9) with a threaded connection.

2. The adjustable-weight training shot put according to claim 1, characterized in that, The connecting cylinder (6) is threaded, and the connecting screw (5) is threadedly connected to the connecting cylinder (6).

3. The adjustable-weight training shot put according to claim 1, characterized in that, The upper and lower ends of the substrate (3) are respectively provided with a plurality of mounting rods (7) arranged circumferentially, and the mounting rods (7) are fixedly connected to the substrate (3).

4. The adjustable-weight training shot put according to claim 1, characterized in that, The counterweight (8) has a connection hole that corresponds to the mounting rod (7).

5. A weight-adjustable training shot put according to claim 1, characterized in that, The nut (9) is a hexagonal nut or a wing nut.

6. A weight-adjustable training shot put according to claim 1, characterized in that, An elastic washer (4) is provided between the first hemisphere (1) and the second hemisphere (2). The elastic washer (4) has a circular ring structure and the inner diameter of the elastic washer (4) is the same as the outer diameter of the substrate (3).

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