Soft kettle-bell

Abstract

The utility model discloses a soft kettle bell which comprises a kettle bell sphere and a handle which are integrally formed through a rotational molding process, a spherical diaphragm protruding downwards is arranged in the kettle bell sphere, a proper amount of plasticizer and a proper amount of stabilizer are added into an upper mold during rotational molding processing, and after cooling and shaping, the kettle bell sphere and the handle are made into a whole. The materials of the upper part of the kettle-bell ball body and the handle part are hardened into hard PVC (Polyvinyl Chloride); and the lower part of the mould is made of soft PVC (Polyvinyl Chloride). A bowl-shaped cavity is formed by the downwards-protruding spherical diaphragm and the soft PVC part at the bottom of the kettle-bell ball body, iron sand is filled in the bowl-shaped cavity to serve as the basic self weight of the kettle-bell, and therefore most of the outer contour of the bottom of the kettle-bell ball body is a soft anti-collision soft PVC shell. A huge cavity is formed by the spherical diaphragm protruding downwards and the hardened hard PVC on the upper portion of the kettle-bell sphere, the filling opening and the cover are arranged to serve as a balance weight bin, the weight of the kettle-bell is adjusted by increasing or decreasing the number of the bagged iron sand placed in the balance weight bin, and the purpose that the weight of the soft kettle-bell can be adjusted is achieved. And the adjusting range is larger.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, in particular to a soft kettlebell with adjustable counterweight. Background Art

[0002] With the continuous progress of society, the awareness of fitness exercise has gradually penetrated into the public. As a convenient exercise method, kettlebell exercise is quite popular among the public. For safety considerations and to better meet the needs of current home fitness enthusiasts, a soft kettlebell with a soft PVC outer shell at the bottom and filled with high-density fillers such as iron sand has emerged. The soft kettlebell is generally made by one-piece rotational molding. During the production process, a PVC film is placed in the mold of the kettlebell sphere to divide the kettlebell sphere into upper and lower parts. During processing, an appropriate amount of plasticizer and stabilizer are added to the rotational molding mold at the upper end. After cooling and shaping, the upper part of the kettlebell sphere becomes hard PVC; the lower end is formed into a soft cavity for filling high-density fillers such as iron sand as the counterweight of the kettlebell. In order to reduce the damage caused by bumps during use, the soft part of the soft kettlebell should account for more than two-thirds of the contour of the kettlebell sphere. Therefore, the soft kettlebell has the characteristics of safety against bumps and silence. However, most of the internal space of the above-mentioned soft kettlebell is filled with the soft PVC cavity filled with iron sand. Such a soft kettlebell cannot adjust its own weight and cannot be adjusted according to needs when used at home. Summary of the Invention

[0003] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a soft kettlebell, which has the characteristics of anti-collision and silence of ordinary soft kettlebells, and can adjust its weight by itself.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a soft kettlebell, which is made by integrally molding through a rotational molding process, including a handle and a kettlebell ball. A diaphragm is arranged in the rotational molding mold to divide the inner cavity of the kettlebell ball into an upper part and a lower part. The diaphragm is composed of a downwardly protruding hard PVC spherical bubble shell and a PVC film. The diaphragm is arranged on the upper part of the kettlebell ball, and the height is between 2 / 3-3 / 4 of the height of the kettlebell ball. During the rotational molding process, plasticizers and stabilizers are added to the upper mold, so that the upper part of the material becomes hard PVC after cooling and molding. The diaphragm is fused with the kettlebell sphere after heating, and the diaphragm will also harden under the action of plasticizers and stabilizers. The spherical diaphragm that bulges downward and the hardened shell of the upper part of the kettlebell sphere form a large hard cavity as a counterweight bin, and the hard PVC part exposed outside the kettlebell sphere only occupies a small part of the outer surface of the kettlebell sphere; the material in the lower mold is cooled and molded into a soft PVC shell, which forms a bowl-shaped cavity with the diaphragm, and is filled with high-density fillers such as iron sand as a deadweight bin. In this way, most of the outer contour of the kettlebell sphere is covered by soft PVC, which can play a role in preventing collision and bumping, while most of the internal space of the kettlebell sphere is a counterweight bin composed of the hardened diaphragm inside and a small part of the hard PVC exposed on the surface. A filling port is opened above the counterweight bin and a matching movable cover is set. At the same time, it is equipped with a number of bagged iron sand that can be put into the counterweight bin through the filling port to adjust the overall quality of the kettlebell.

[0005] Through the above technical scheme, a downwardly protruding spherical diaphragm is added on the basis of traditional rotational molding to realize that most of the bottom of the kettlebell sphere is soft PVC, and most of the space inside the kettlebell sphere is reserved to be used as a counterweight bin for adjusting its own weight. A filling port is opened and equipped with several bags of iron sand, so that the user can adjust the weight of the kettlebell according to his own situation. Because sufficient space is reserved for the counterweight bin, the counterweight adjustment range of the soft kettlebell described in the utility model is larger.

[0006] The beneficial effects of the utility model are as follows: compared with other forms of adjustable kettlebells, the soft kettlebell described in the utility model has a simple structure and is easy to process, and most of the kettlebell ball is soft PVC with better anti-collision and silent effects, and the soft bottom also makes the kettlebell not easy to be broken and extends the service life; compared with general soft kettlebells, the soft kettlebell described in the utility model is provided with a larger hard cavity inside the kettlebell ball as a counterweight bin, so that the kettlebell's own weight has a considerable adjustment space, and the user can adjust the weight at any time according to needs to meet various usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 The utility model is a schematic diagram of the cross-sectional structure of a soft kettlebell.

[0008] Legend:

[0009] 1. Handle; 2. Kettlebell sphere; 3. Movable lid; 4. Diaphragm; 5. Self-weight chamber; 6. Counterweight chamber. Specific embodiments

[0010] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0011] Refer to Figure 1 , an embodiment provided by the present invention: Taking a soft kettlebell with an outer diameter of 22 cm of the kettle body as an example, according to the structure of a soft kettlebell described in the present invention, a downwardly convex spherical diaphragm is arranged at 3 / 4 of the upper sphere height of the kettlebell sphere, and is integrally formed by rotational molding. Plasticizers and stabilizers are added to the upper half of the rotational molding mold. The bottom of the kettlebell sphere is made of soft PVC in a bowl shape; inside the sphere is a huge cavity composed of a hardened diaphragm and 1 / 4 of the hardened PVC in the upper part of the kettlebell sphere. A filling port is started at the upper end of this cavity, and a lid is provided as a counterweight chamber; above the kettlebell sphere is a handle integrally formed and hardened. When the counterweight chamber is filled with bagged iron sand, the weight of this kettlebell can reach 12 KG; when all the bagged iron sand in the counterweight chamber is taken out, the weight of this kettlebell is only 3 KG. 3 / 4 of the lower part of the sphere of this kettlebell is made of soft PVC material, which minimizes the damage caused by bumps and the noise generated by collisions. At the same time, it can also realize the random adjustment of the load between 3 KG and 12 KG to meet the different needs of users, and is more suitable for daily home use. And the structure of this kettlebell is simple and convenient to process. The kettlebell sphere and the handle are integrally formed and are also more durable.

[0012] It should be finally noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A soft kettlebell, comprising a kettlebell ball and a handle, which is integrally formed by rotational molding, and is characterized by: The lower part of the kettlebell ball is a soft PVC cavity as a deadweight bin, which is filled with iron sand. A diaphragm is provided above the deadweight bin, and above the diaphragm is a hard PVC counterweight bin. A filling port is provided at the top of the counterweight bin, and a movable cover that cooperates with the filling port is provided. Above the counterweight bin is an integrally formed U-shaped handle.

2. A soft kettlebell according to claim 1, characterized in that: The diaphragm used for spacing the deadweight bin and the counterweight bin is a spherical surface protruding downward.

3. A soft kettlebell according to claim 1, characterized in that: The diaphragm is arranged on the upper half of the kettlebell sphere, and its height is between 2 / 3 and 3 / 4 of the height of the kettlebell sphere.

4. The soft kettlebell according to claim 1, characterized in that: The counterweight bin There are bags of iron sand inside for counterweight.

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