Counterweight shell structure of dumbbell

Abstract

The counterweight shell structure comprises a connecting shell and end covers connected to the two ends of the connecting shell, embedding parts are arranged at the two ends of the connecting shell, screw holes are formed in the embedding parts, embedding cavities are formed in the inner side faces of the end covers, and mounting holes are formed in the positions, corresponding to the screw holes, of the embedding cavities. The embedding part is connected with the embedding cavity in a matched mode, and the end cover is connected with the mounting hole and the screw hole through a screw to be fixed to the connecting shell. The connecting shell and the end covers at the two ends are connected through the embedding parts and the embedding cavities, the structural strength of the connecting shell and the end covers at the connecting positions is enhanced, and the bearing capacity is obviously improved.

Description

Technical Field

[0001] The utility model relates to a counterweight outer shell structure of a dumbbell.

Background Art

[0002] Patent CN202220340927.X discloses a dumbbell convenient for adjusting load, which discloses a connecting shell for counterweight and inner and outer shells connected to both ends of the connecting shell. When carrying dumbbell plates, the connection between the connecting shell and the inner and outer shells is one of the stress points. However, the connection between the connecting shell and the inner and outer shells adopts a straight rod connection, and the straight rod bears most of the weight. In actual use, the straight rod is prone to breakage, presenting an obvious potential safety hazard.

[0003] Therefore, it is necessary to further improve it.

Content of the Utility Model

[0004] The purpose of the utility model is to overcome the above problems. We provide a counterweight outer shell structure of a dumbbell, which solves the load-bearing problem.

[0005] To achieve the above purpose, the utility model provides a counterweight outer shell structure of a dumbbell, which includes a connecting shell and end caps connected to both ends of the connecting shell. Embedding parts are arranged at both ends of the connecting shell, screw holes are opened on the embedding parts, embedding cavities are arranged on the inner side surfaces of the end caps, mounting holes are opened at positions corresponding to the screw holes on the embedding cavities, the embedding parts are connected and matched with the embedding cavities, and the end caps are fixed to the connecting shell by screwing the mounting holes and the screw holes.

[0006] In one or more embodiments, the embedding part is trapezoidal, the thickness of the embedding part is 0.8 - 1.5 MM, and the depth of the embedding cavity is the same as the thickness of the embedding part.

[0007] In one or more embodiments, an arc transition structure is arranged at the corner position of the embedding part.

[0008] In one or more embodiments, a recessed area is arranged around the mounting hole on the outer side surface of the end cap, and a decorative piece is pasted on the recessed area.

[0009] In one or more embodiments, the inside of the embedding part is a hollow structure, a column body is arranged inside the embedding part, the screw hole is opened on the column body, and a concave position connected to the column body is arranged on the embedding cavity.

[0010] In one or more embodiments, the connecting shell and the embedding part are an injection-molded integral structure.

[0011] In one or more embodiments, the inside of the connecting shell is a hollow structure, and reinforcing ribs for supporting the inner wall are distributed inside the connecting shell.

[0012] The effect of the present utility model compared with the background technology is that between the connecting shell and the end caps at both ends, the connection of the embedding part and the embedding cavity is adopted to strengthen the structural strength at the connection part of the two, and the load-bearing capacity is significantly improved.

Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the connecting shell and the end cap of this embodiment;

[0014] Figure 2 It is a schematic internal structural diagram of the connecting shell of this embodiment.

Specific Embodiments

[0015] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0016] Refer to the attached Figure 1 and 2 , this application provides a weight shell structure of a dumbbell, which includes a connecting shell 1 and end caps 2 connected to both ends of the connecting shell. Embedding parts 3 are provided at both ends of the connecting shell, screw holes 4 are opened on the embedding parts, embedding cavities 5 are provided on the inner side surfaces of the end caps 2, mounting holes 6 are opened at positions corresponding to the screw holes in the embedding cavities, the embedding parts are connected and matched with the embedding cavities, and the end caps 2 are fixed to the connecting shell 1 by screwing screws 7 into the mounting holes and the screw holes. The connection between the embedding parts and the embedding cavities on the end caps strengthens the structural tightness of the connection between the connecting shell and the end caps, increases the stress area, and enhances the load-bearing capacity. Using screws for connection and fixation has the advantages of easy installation and disassembly.

[0017] The embedding part 3 is trapezoidal in shape, and the thickness of the embedding part is 0.8 - 1.5 MM, preferably 0.8 MM, 1.0 MM, 1.2 MM, and 1.5 MM. The depth of the embedding cavity 5 is the same as the thickness of the embedding part.

[0018] An arc transition structure 8 is provided at the edge positions of the embedding part 3. The arc transition structure can make it easier for the embedding part to be connected with the embedding cavity.

[0019] A recessed area 9 is provided around the mounting holes on the outer side surface of the end cap 2, and a decorative piece 10 is pasted on the recessed area. The decorative piece can cover the screws and play a role in beautification. And the depth of the provided recessed area is preferably the same as the thickness of the decorative piece, which can avoid the protrusion of the decorative piece and cause an abrupt feeling.

[0020] The interior of the embedding part 3 is a hollow structure. A column body 11 is arranged inside the embedding part. The screw hole 4 is opened on the column body. A concave position 12 connected to the column body is arranged on the embedding cavity 5. The connection between the column body and the concave position can further strengthen the structural tightness of the connection between the connection shell and the end cover.

[0021] The connection shell 1 and the embedding part 3 are an integrally injection-molded structure, which can save the fixing work of the embedding part and the connection shell, and the overall structure of the connection shell after injection molding is light. The interior of the connection shell 1 is a hollow structure, and reinforcing ribs 13 for supporting the inner wall are distributed inside the connection shell. The reinforcing ribs can improve the structural strength of the connection shell and make it not prone to deformation problems.

[0022] Certainly, the present utility model is not limited to the above embodiments. Those skilled in the art can make equivalent deformations or replacements without departing from the spirit of the present utility model, and these equivalent deformations and replacements are all included in the scope defined by the claims of this application.

Claims

1. A weight housing structure of a dumbbell, characterized in that: It includes a connecting shell (1) and end caps (2) connected to both ends of the connecting shell. Mounting parts (3) are provided at both ends of the connecting shell, screw holes (4) are formed on the mounting parts, embedding cavities (5) are provided on the inner side surfaces of the end caps (2), mounting holes (6) are formed at positions corresponding to the screw holes in the embedding cavities, the mounting parts are connected and matched with the embedding cavities, and the end caps (2) are fixed to the connecting shell (1) by screws (7) connecting the mounting holes and the screw holes.

2. The weight housing structure of a dumbbell according to claim 1, wherein: The mounting part (3) is trapezoidal in shape, the thickness of the mounting part is 0.8 - 1.5 MM, and the depth of the embedding cavity (5) is the same as the thickness of the mounting part.

3. The weight housing structure of a dumbbell according to claim 1 or 2, characterized in that: An arc transition structure (8) is provided at the corner positions of the mounting part (3).

4. The weight housing structure of a dumbbell according to claim 1, characterized in that: A recessed area (9) is provided around the mounting hole on the outer side surface of the end cap (2), and a decorative piece (10) is pasted on the recessed area.

5. The weight outer shell structure of a dumbbell according to claim 1, characterized in that: The inside of the mounting part (3) is a hollow structure, a cylinder (11) is provided inside the mounting part, the screw hole (4) is formed on the cylinder, and a concave position (12) connected to the cylinder is provided on the embedding cavity (5).

6. The weight outer shell structure of a dumbbell according to claim 1, characterized in that: The connecting shell (1) and the mounting part (3) are of an injection-molded integral structure.

7. The weight housing structure of a dumbbell according to claim 6, characterized in that: The inside of the connecting shell (1) is a hollow structure, and reinforcing ribs (13) for supporting the inner wall are distributed inside the connecting shell.

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