An arm exerciser

Abstract

The utility model relates to the technical field of body -building equipment, concretely relates to an arm strength device, including first connecting piece and second connecting rod spare, first connecting piece and second connecting rod spare coaxial setting, one end of first connecting piece and one end of second connecting rod spare rotatory connection, the other end side part of first connecting piece and second connecting rod spare all rotatory settings grip, first connecting piece and second connecting rod spare with corresponding grip all have certain angle C, the rotation of grip sets up damping, when training, hand holds two grips, makes two grips to two different directions, then both hands do around the chest, first connecting piece and second connecting rod spare can follow certain angle rotation, the relative rotation of first connecting piece and second connecting rod spare can better adapt the twist when the joint activity of people, can be more favorable to the power output of user training.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, specifically to an arm strength trainer. Background Technology

[0002] There are many kinds of fitness equipment available today, including a wide variety of arm exercisers. However, many arm exercisers are not ergonomically designed, especially those that require rotating the arms by holding two handles. These exercisers can easily cause wrist and arm joint sprains when used. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an arm strength trainer.

[0004] The technical solution of this utility model is as follows:

[0005] This utility model provides an arm strength exerciser, including a first connecting member and a second connecting rod. The first connecting member and the second connecting rod are coaxially arranged. One end of the first connecting member is rotatably connected to one end of the second connecting rod. A gripping part is rotatably arranged on the other side of both the first connecting member and the second connecting rod. The first connecting member and the second connecting rod and the corresponding gripping part have a certain included angle C. The rotation of the gripping part is damped.

[0006] Furthermore, the included angle C is ninety degrees.

[0007] Furthermore, a resistance adjustment structure is provided at the rotatable connection between the first connecting member and the second connecting rod, which can adjust the resistance to the relative rotation of the first connecting member and the second connecting rod.

[0008] Furthermore, the rotational damping of the grip is adjustable.

[0009] Furthermore, the resistance adjustment structure includes a convex shaft assembly at one end of the first connector, a through hole in the second connecting rod along its length, the convex shaft assembly extending into the through hole and fixedly fitted with an expansion tube, a conical expansion body inside the expansion tube, a screw part at the inner end of the conical expansion body, an internal threaded hole at the inner end of the convex shaft assembly that is threaded to the screw part, and a knob part at the outer end of the conical expansion body.

[0010] Furthermore, the end of the through hole furthest from the first connector is a flared end with a certain taper, and the shape of the expansion tube is adapted to the flared end.

[0011] The beneficial effects achieved by this utility model are as follows:

[0012] When training, the user holds the two grips with their hands facing two different directions, and then wraps their hands around their chest. The first connecting piece and the second link can rotate at a certain angle accordingly. The relative rotation of the first connecting piece and the second link can better adapt to the twisting motion of the user's joints, which can be more conducive to the output of force during training. Attached Figure Description

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

[0014] Figure 2 This is a side view structural diagram of the present invention;

[0015] Figure 3 It is along Figure 2 BB line sectional view;

[0016] Figure 4 It is along Figure 2 A schematic diagram of the AA-line section;

[0017] Figure 5 yes Figure 4 A magnified view of part D. Detailed Implementation

[0018] To facilitate understanding of this utility model by those skilled in the art, the specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0019] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] like Figures 1-5As shown, this utility model provides an arm strength device, including a first connecting member 1 and a second connecting rod 2. The first connecting member 1 and the second connecting rod 2 are coaxially arranged. One end of the first connecting member 1 is rotatably connected to one end of the second connecting rod 2. A gripping part 3 is rotatably provided on the other side of both the first connecting member 1 and the second connecting rod 2. The first connecting member 1 and the second connecting rod 2 and the corresponding gripping part have a certain included angle C, preferably 90 degrees. The rotation of the gripping part 3 is damped, and the damping is preferably adjustable. A resistance adjustment structure is provided at the rotatable connection between the first connecting member 1 and the second connecting rod 2. The resistance of the relative rotation of the first connecting member 1 and the second connecting rod 2 can be adjusted by the resistance adjustment structure.

[0022] In one embodiment of the resistance adjustment structure, a convex shaft assembly 4 is provided at one end of the first connecting member 1, and a through hole 5 is opened along the length direction of the second connecting rod 2. The end of the through hole 5 away from the first connecting member is a flared end with a certain taper. The convex shaft assembly 4 extends into the through hole 5 and is fitted with an expansion tube 6. The expansion tube 6 cannot rotate relative to the convex shaft assembly 4. The shape of the expansion tube 6 is adapted to the flared end. A conical expansion body 7 is provided inside the expansion tube 6. A screw part 701 is provided at the inner end of the conical expansion body 7. An internal threaded hole that is threaded with the screw part is provided at the inner end of the convex shaft assembly 4. A knob part 702 is provided at the outer end of the conical expansion body 7. By rotating the knob part 702, the relative distance between the conical expansion body and the convex shaft assembly can be adjusted, thereby squeezing the expansion tube 6 to expand it, and thus adjusting the friction between the expansion tube and the inner wall of the through hole. In this way, the resistance to the relative rotation of the first connecting member 1 and the second connecting rod 2 can be adjusted. Different users can adjust it according to their own situation to achieve a more suitable resistance.

[0023] The grip 3 has adjustable damping when rotating relative to the first connector 1 and the second link 2. The user can adjust the damping according to their own strength. The unique design of the first connector 1 and the second link 2 allows the user to rotate relative to each other. When training, the user holds the two grips with the grips facing two different directions, and then makes a circle around the chest with both hands. The first connector and the second link can rotate at a certain angle accordingly. The relative rotation of the first connector and the second link can better adapt to the twisting motion of the human joints and can be more conducive to the output of force during training.

[0024] The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An arm strength trainer, characterized in that: It includes a first connector and a second link, which are coaxially arranged. One end of the first connector is rotatably connected to one end of the second link. Both the first connector and the second link are rotatably provided with a gripping part near their other ends. The first connector and the second link and the corresponding gripping part have a certain included angle C. The rotation of the gripping part is damped.

2. The arm strength trainer according to claim 1, characterized in that: The included angle C is 90 degrees.

3. The arm strength trainer according to claim 1, characterized in that: A resistance adjustment structure is provided at the rotatable connection between the first connector and the second link, which can adjust the resistance to the relative rotation of the first connector and the second link.

4. The arm strength trainer according to claim 1, characterized in that: The rotational damping of the grip is adjustable.

5. The arm strength trainer according to claim 3, characterized in that: The resistance adjustment structure includes a cam shaft assembly at one end of the first connector, a through hole along the length of the second connecting rod, the cam shaft assembly extending into the through hole and fixedly fitted with an expansion tube, a conical expansion body inside the expansion tube, a screw part at the inner end of the conical expansion body, an internal threaded hole at the inner end of the cam shaft assembly that is threaded to the screw part, and a knob part at the outer end of the conical expansion body.

6. The arm strength trainer according to claim 5, characterized in that: The end of the through hole furthest from the first connector is a flared end with a certain taper, and the shape of the expansion tube is adapted to the flared end.

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