Novel dumbbell

Abstract

The utility model discloses a novel dumbbell which is provided with a handle and an arm force application part, two dumbbell piece bases are symmetrically arranged on the handle, and a plurality of dumbbell pieces are axially fixed on the dumbbell piece bases through inserting protrusions or inserting grooves. Through the structural arrangement, during training, the handle is held by a hand, the arm force application part is just located above a small arm, the whole dumbbell can be supported in an auxiliary mode, wrist strength can be shared during training, and injuries are avoided; according to the dumbbell, axial locking and radial falling prevention of the dumbbell pieces are achieved through an axial concave-convex insertion matching structure, the defects in the prior art are overcome, and the dumbbell is an ideal dumbbell.

Description

Technical Field

[0001] This utility model belongs to the field of fitness equipment technology, specifically relating to a new type of dumbbell that enables arm-assisted force application. Background Technology

[0002] Dumbbells are a common piece of exercise equipment in the fitness field. Existing equipment of this type is mainly used for training arm muscles. In order to be used by different groups of people, existing dumbbells allow multiple dumbbell plates to be stacked arbitrarily by screwing or locking screws, thereby increasing the weight of the dumbbell.

[0003] In existing dumbbell training, the force is applied by gripping the lever with the palm, transferring the force to the wrist, then to the arm, and finally using the arm muscle strength to vertically lift the dumbbell to achieve strength training.

[0004] The drawback of existing dumbbell training methods is that the transfer of force must be done through the wrist to the palm. When training with heavy weights or when there are underlying injuries in the wrist area, dumbbell training can easily cause wrist injuries, and in severe cases, even permanent and irreversible joint damage.

[0005] Given the current situation of dumbbells, as the research and development unit of dumbbell products, it is very necessary for the applicant to improve the existing dumbbell structure and design a dumbbell that is easy to assemble and can distribute the force of the wrist during use. The purpose is to meet the needs of arm strength training while protecting the wrist area. Summary of the Invention

[0006] To overcome the shortcomings of existing technology, this utility model provides a novel dumbbell with a novel structural design. It adopts a multi-point locking connection and is equipped with an auxiliary force-bearing area in conjunction with the force-applying bar, which can distribute the force on the wrist, protect the trainee during training, and at the same time ensure the training effect of the arm.

[0007] To achieve the above technical objectives, the present invention adopts the following solution:

[0008] A novel dumbbell includes a handle and an arm-applying part spaced apart. Two dumbbell plate bases are symmetrically arranged on the handle, each base having a protrusion or groove for insertion. Several dumbbell plates are fixed to the bases, each plate having a protrusion and groove on both sides. Threaded holes are provided at both ends of the handle, the arm-applying part, or the dumbbell plate bases, with locking screws fitted into these holes for axially pressing the dumbbell plates.

[0009] The handle is positioned on the middle height plane of the dumbbell plates, and the arm force application part is positioned on the upper rear side of the handle.

[0010] The dumbbell plate is provided with a vertical insertion slot and a positioning hole. The locking screw is provided with an outer pressing surface. The locking screw passes through the positioning hole and locks the dumbbell plate to the handle, the arm force application part, or the dumbbell plate base, pressing the dumbbell plate onto the dumbbell plate base.

[0011] The dumbbell plates are circular or polygonal in structure. When polygonal, the corners are chamfered.

[0012] The arm's force-applying part has a multi-layered structure, including a central rod and an outer buffer pad. The buffer pad is made of rubber, sponge, or fabric.

[0013] The dumbbell plates are provided with symmetrical positioning holes, insertion protrusions and insertion slots, which allows for symmetrical installation of the dumbbell plates.

[0014] The beneficial effects of this utility model are as follows: This utility model is equipped with a handle and an arm force application part. Two dumbbell plate bases are symmetrically arranged on the handle. Multiple dumbbell plates are axially fixed on the dumbbell plate bases through plug-in protrusions or plug-in slots. With the above structural design, when holding the handle during training, the arm force application part is located just above the forearm, which can assist in supporting the entire dumbbell and can distribute the wrist force during training to avoid injury. This utility model also adopts an axial concave-convex plug-in matching structure to realize the axial locking and radial anti-dislodgement of multiple dumbbell plates, which overcomes the shortcomings of the prior art and is an ideal dumbbell. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the dumbbell plate assembly structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of a dumbbell plate;

[0018] Figure 4 This is a schematic diagram of the structure of this utility model.

[0019] In the attached image:

[0020] 1. Handle; 11. Handle screw; 2. Arm exertion part; 21. Center bar; 22. Buffer pad; 23. Locking screw; 24. Outer extrusion surface; 3. Dumbbell plate base; 31. Insertion groove; 4. Dumbbell plate; 41. Clearance hole; 42. Insertion protrusion; 43. Positioning hole; 44. Vertical insertion groove; 45. Chamfer; 5. Palm; 51. Forearm. Detailed Implementation

[0021] As shown in the attached drawings, this utility model is a novel dumbbell, which includes a handle 1 and an arm force application part 2 arranged at intervals. The handle 1 has threaded holes at both ends and the handle 1 passes through a dumbbell plate base 3 at both ends. The handle 1 is fixed to the dumbbell plate base 3 at both ends by handle screws 11.

[0022] Two dumbbell plate bases 3 are symmetrically arranged on the handle 1, and the dumbbell plate bases 3 are provided with insertion slots 31; several dumbbell plates 4 are fixed on the dumbbell plate bases 3.

[0023] like Figure 3 As shown, each dumbbell plate 4 has a plugging protrusion 42 and a plugging groove 31 on both sides; the dumbbell plate 4 also has a vertical plugging groove 44 and a positioning hole 43, and an avoidance hole 41 for avoiding the screw 11 on the handle.

[0024] The handle 1 is positioned on the middle height plane of the dumbbell plate 4. In this embodiment, the handle 1 is positioned slightly forward of the middle height of the dumbbell plate 4, and the arm exertion part 2 is positioned above and behind the handle 1. There is a certain distance between the two both horizontally and vertically; in use, such as... Figure 4 As shown, after the palm 5 grips the handle 1, the forearm 51 is positioned directly below the arm force application part 2. The user can directly pick up the entire dumbbell with their palm, or use their forearm 51 to assist in picking it up, achieving a combination of two methods.

[0025] The arm-applying part 2 has threaded holes at both ends, and locking screws 23 are installed in the threaded holes for axial locking of the arm-applying part 2 and for pressing and fixing the dumbbell plate 4. As an equivalent technology, threaded holes can also be provided on the dumbbell plate base 3, and locking screws 23 can be installed in the threaded holes for axial locking of the arm-applying part 2 and for pressing and fixing the dumbbell plate 4. In this case, the arm-applying part 2 is fixed to the dumbbell plate base 3 by welding.

[0026] The arm force-applying part 2 consists of a multi-layer structure, including a central rod 21 and an outer buffer pad 22. The buffer pad 22 is made of rubber, sponge, or fabric. In this embodiment, sponge is used so that there is no pressure sensation when the forearm 51 is supported.

[0027] The locking screw 23 has an outer pressing surface 24. The locking screw 3 passes through the positioning hole 43 and locks with the central rod 21 on the arm force application part 2, simultaneously pressing the dumbbell plate 4 onto the dumbbell plate base 3. When installing the dumbbell plate 4, vertical insertion can be achieved through the vertical insertion slot 44, and axial locking is achieved at the positioning hole 43. The insertion protrusion 42 and insertion slot 31 on the dumbbell plate 4 are stacked and screwed together to achieve insertion between adjacent dumbbell plates 4, thereby achieving vertical anti-slip.

[0028] Furthermore, in the design of this utility model, the dumbbell plate 4 is provided with symmetrical positioning holes 43, insertion protrusions 42, and insertion grooves 31. This design allows for symmetrical installation of the dumbbell plate 4, and this structure allows the dumbbell plate 4 to be used from both sides without distinguishing between left and right.

[0029] Furthermore, the dumbbell plate 4 is circular or polygonal. When a polygon is used, its corners are chamfered to prevent sharp objects from injuring people.

[0030] In summary, with the above structural design, when training, the hand holding the handle 1 has the arm force application part 2 positioned directly above the forearm 51, which can assist in supporting the entire dumbbell and distribute the wrist force during training, thus preventing injury.

[0031] This invention also employs an axial concave-convex interlocking matching structure to achieve axial locking and radial anti-dislodgement of multiple dumbbell plates 4, resulting in good stability after installation and preventing axial or radial separation. This dumbbell offers high safety and a cleaner appearance, overcoming the shortcomings of existing technologies and making it an ideal dumbbell.

Claims

1. A new type of dumbbell characterized in that: It includes the handle and arm force part which are arranged at intervals, two dumbbell piece bases are symmetrically arranged on the handle, and the inserting convex or inserting slot is arranged on the dumbbell piece base; the dumbbell piece base is fixed with several dumbbell pieces, the inserting convex and inserting slot are respectively arranged on two sides of each dumbbell piece; the screw hole is arranged on the both ends of the handle or the both ends of the arm force part or the dumbbell piece base, and the locking screw is arranged in cooperation with the screw hole for axially extruding the dumbbell piece.

2. A new type of dumbbell as claimed in claim 1, characterized in that: The handle is arranged on the middle height plane of the dumbbell piece, and the arm force part is arranged above the rear side of the handle.

3. A new type of dumbbell as claimed in claim 1, characterized in that: The vertical inserting slot and positioning hole are arranged on the dumbbell piece, the outer extruding surface is arranged on the locking screw, the locking screw is locked with the handle or the arm force part or the dumbbell piece base through the positioning hole to extrude the dumbbell piece on the dumbbell piece base.

4. A new type of dumbbell as claimed in claim 1, characterized in that: The dumbbell piece adopts the circular or polygonal structure, and the corner is cut when the polygonal structure is adopted.

5. A new type of dumbbell as claimed in claim 1, characterized in that: The arm force part is arranged in the multi-layer structure, which includes the center rod and the peripheral buffer pad.

6. A new type of dumbbell as claimed in claim 1, characterized in that: The positioning hole, the inserting convex and the inserting slot which are left-right symmetrical are arranged on the dumbbell piece.

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