Reinforced drum-shaped yo-yo ball body with double-layer sandwich structure

Abstract

The utility model discloses a strengthened drum type yo-yo ball body with a double-layer interlayer structure, and particularly relates to the technical field of yo-yo balls, the strengthened drum type yo-yo ball body comprises a yo-yo ball body, the yo-yo ball body comprises a ball body, a connecting column and a ball cover, the double-interlayer structure is arranged on one side, close to the ball cover, of the ball body, the connecting column is connected in an empty groove reserved in the ball body, and the ball cover is connected with the connecting column. A bolt groove is formed in one end of the connecting column, the ball cover is arranged on the outer side of the ball body, and the connecting end, close to the ball body, of the ball cover is clamped in the double-interlayer structure. The problem that the yo-yo cover is prone to falling off is solved by changing the structure of the yo-yo, meanwhile, the weight distribution of the yo-yo is adjusted, the yo-yo is more convenient for a player to operate, in addition, the connection strength between the yo-yo body and the yo-yo cover can be improved, and the service life of the yo-yo is prolonged. The yo-yo ball is convenient to disassemble and assemble and cannot fall off easily during practice or playing, the weight distribution of the yo-yo ball can be optimized, and the yo-yo ball has better performance.

Description

Technical Field

[0001] The utility model relates to the technical field of yo-yos, and in particular to a reinforced drum-type yo-yo ball with a double-layer sandwich structure. Background Art

[0002] As yo-yo is well known as an extreme hand sport, yo-yo has been accepted and loved by people of all ages due to its good viewing, high playability, strong competitiveness and strong self-challenge. There are many kinds of yo-yo structural designs. One common yo-yo structure is: a bulging shape with a cover in the middle of the sphere (hereinafter referred to as a drum-shaped yo-yo with a cover). This kind of yo-yo often hits the ground or surrounding obstacles due to unskilled skills when players are practicing fancy moves, resulting in the disintegration of the yo-yo and damage to the cover.

[0003] The structure of a conventional drum-shaped yo-yo with a cover is composed of a ball cover, a sphere, a central axis, a bearing support, a nut, a ball bearing, and a gasket, wherein the ball cover is stuck in the middle of the sphere, and the fixing effect is achieved by the inward interference fit of the sphere on the outer edge of the ball cover. Since the ball cover itself is mostly arc-shaped, the sphere extrusion force pointing from the outer edge to the center will be unbalanced during the collision of the yo-yo, resulting in an increase in local directional pressure, causing the ball cover to deform and loosen from the sphere, and even fall and be thrown out due to high-speed rotation, which greatly increases the financial cost and risk factor of practicing yo-yo fancy moves. In order to prevent this problem, the traditional method of directly gluing the ball cover and the sphere together with glue is used to circumvent it. This method has obvious defects, because the structure of the ball cover being glued together makes it difficult for players to remove the ball cover, thereby making it difficult to customize the yo-yo, such as adding a metal ring between the sphere and the ball cover to change the weight, and adding light accessories between the sphere and the ball cover to achieve a luminous effect. Utility Model Content

[0004] The utility model aims to provide a reinforced drum-shaped yo-yo ball body with a double-layer sandwich structure to solve the above-mentioned shortcomings in the technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reinforced drum-shaped yo-yo ball with a double-layer sandwich structure, comprising:

[0006] The yo-yo body comprises a sphere, a connecting column and a ball cover. A double sandwich structure is provided on one side of the sphere close to the ball cover, and the connecting column is connected to a reserved empty slot of the sphere.

[0007] Preferably, a bolt groove is provided at one end of the connecting column.

[0008] Preferably, the ball cover is arranged on the outside of the sphere, and the connecting end of the ball cover close to the sphere is clamped inside the double sandwich structure.

[0009] Preferably, the outer side wall of the ball cover is arc-shaped.

[0010] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0011] The problem of the yo-yo cover falling off easily is solved by changing the ball structure. At the same time, the weight distribution of the yo-yo is adjusted to make it easier for players to operate. In addition, the connection strength between the drum-shaped yo-yo ball and the yo-yo ball cover can be improved to make it easier to disassemble and assemble but will not fall off easily during practice or play. The weight distribution of the yo-yo can also be optimized to make it have better performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the back side of the utility model;

[0015] Figure 3 It is a schematic plan cross-sectional view of the utility model;

[0016] Figure 4 It is a schematic diagram of the plane splitting of the utility model.

[0017] Description of reference numerals:

[0018] 1. Sphere; 2. Connecting column; 3. Bolt slot; 4. Ball cover; 5. Double sandwich structure. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] The utility model provides Figure 1 and Figure 2 A reinforced drum-type yo-yo ball with a double-layer sandwich structure is shown, comprising:

[0021] The yo-yo body includes a sphere 1, a connecting column 2 and a ball cover 4. A double sandwich structure 5 is provided on the side of the sphere 1 close to the ball cover 4. The outer wall of the ball cover 4 is arc-shaped. The ball cover 4 is arranged on the outside of the sphere 1, and the connecting end of the ball cover 4 close to the sphere 1 is clamped in the inside of the double sandwich structure 5. The connecting column 2 is connected to the empty groove reserved in the sphere 1, and a bolt groove 3 is provided at one end of the connecting column 2.

[0022] Through the above technical solution:

[0023] The problem of the ball cover 4 being easy to fall off is solved by changing the ball structure, and at the same time, the weight distribution of the yo-yo is adjusted to make it easier for players to operate. There is also a circle of circular ball wall structure on the inner side of the ball 1, and a sandwich is formed between the inner wall of the outermost side of the ball 1. The size design of the sandwich is matched with the outer edge of the ball cover 4 of the yo-yo, so that the sandwich can clamp the circular wall at the bottom of the ball cover 4 from two opposite directions through appropriate interference fit. This double sandwich structure 5 can not only make the ball 1 tightly clamp the ball cover 4, and prevent the ball cover 4 from colliding under high-speed rotation and causing stress imbalance and falling off and flying out, but also The ball cover 4 is pushed out from the position of the central screw of the yo-yo, realizing a glue-free high-strength connection between the ball cover 4 and the sphere 1, which not only improves the stability coefficient of the yo-yo structure, but also facilitates players to customize and modify it. At the same time, in order to control the overall weight of the yo-yo, the thickness of the bottom of the yo-yo is slightly thinned in this solution, and its weight is transferred to the inner interlayer circular wall of the sphere 1, thereby realizing the distribution effect of the yo-yo weight from the center to the outside. This adjustment can not only realize the double sandwich structure 5 under the premise of maintaining the overall weight of the yo-yo, but also concentrate the weight on the outside of the yo-yo to improve the idling ability and control stability of the yo-yo.

[0024] In summary, the utility model can improve the connection strength between the yo-yo ball body and the ball cover in a glue-free manner, and improve the weight distribution inside the yo-yo, so that the operation feel of the yo-yo is more handy.

[0025] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A reinforced drum-type yo-yo ball with a double-layer sandwich structure, characterized in that: include: The yo-yo body comprises a sphere (1), a connecting column (2) and a ball cover (4); a double sandwich structure (5) is provided on one side of the sphere (1) close to the ball cover (4); and the connecting column (2) is connected to a reserved empty groove of the sphere (1).

2. The reinforced drum-type yo-yo ball with a double-layer sandwich structure according to claim 1, characterized in that: A bolt groove (3) is formed at one end of the connecting column (2).

3. The reinforced drum-type yo-yo ball with a double-layer sandwich structure according to claim 1, characterized in that: The ball cover (4) is arranged on the outside of the sphere (1), and the connection end of the ball cover (4) close to the sphere (1) is clamped inside the double sandwich structure (5).

4. The reinforced drum-type yo-yo ball with a double-layer sandwich structure according to claim 1, characterized in that: The outer side wall of the ball cover (4) is in an arc shape.

Images