Dumbbell iron core easy to replace

Abstract

The utility model discloses a dumbbell iron core easy to replace, which comprises dumbbell iron cores arranged at two ends of a handle, a plurality of annularly distributed strip-shaped bulges arranged in inner rings of the dumbbell iron cores, corresponding strip-shaped grooves arranged at two ends of the handle, the strip-shaped bulges are inserted in the strip-shaped grooves in a sliding manner, through holes are arranged in the strip-shaped grooves, and baffle plates are inserted in the through holes. The blocking pieces can retract from the through holes, notches are formed in the strip-shaped protrusions, the positions of the notches correspond to the positions of the through holes, and the blocking pieces can be inserted into the notches. According to the dumbbell iron core easy to replace, the handle and the dumbbell iron core are clamped or detached by easily rotating the rotary shifting block, and different dumbbell iron cores can be replaced conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to body -building apparatus technical field, concretely is an easily replaced dumbbell iron core. BACKGROUND

[0002] Dumbbell handle and dumbbell iron core need to be fixed by welding or fixed by screw cap with thread, the welding fixing mode cannot replace the dumbbell iron core of different weight, is not favorable to power upgrade training, and the screw cap fixing mode is troublesome to disassemble, and easy to loosen, therefore, an easily replaced dumbbell iron core is designed. UTILITY MODEL CONTENTS

[0003] The utility model discloses a kind of easily replaced dumbbell iron core, to solve the problem of replacing difficultly of existing dumbbell iron core disassembly and assembly in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: an easily replaced dumbbell iron core, including the dumbbell iron core of installation at the both ends of handle, multiple annular distribution's strip protrusions are set in dumbbell iron core inner ring, corresponding strip slot is set at the both ends of handle, strip protrusion is slidably inserted in strip slot, through-hole is set in strip slot, and stop sheet is inserted in through-hole, and stop sheet can be retracted from through-hole, notch is set on strip protrusion, the position of notch corresponds with through-hole and stop sheet can be inserted into notch.

[0005] Preferably, rotary disc is set in handle, stop sheet is distributed at the outer edge of rotary disc, and stop sheet is arc-shaped and can be elastically deformed to the center position of rotary disc, connecting column is fixed at the center position of rotary disc, and sealing cover is fixedly connected to the outer end of connecting column, sealing cover is set at the handle port and sealing cover is rotatably connected relative to handle.

[0006] Preferably, ladder port is set at the handle port, and snap spring groove is set on the inner wall of ladder port, sealing cover is installed in ladder port and snap spring is clamped in snap spring groove to limit sealing cover.

[0007] Preferably, rotating knob is set on the outside of sealing cover.

[0008] Compared with prior art, the utility model has the advantages of the following:

[0009] The utility model discloses an easily replaced dumbbell iron core, which is easy to replace different dumbbell iron cores by rotating the rotating knob easily. DRAWINGS

[0010] Figure 1 It is the explosion drawing of the utility model;

[0011] Figure 2 It is the section view of the dumbbell iron core in the utility model;

[0012] Figure 3 Figure is a schematic diagram of the turntable and the sealing cover structure of the utility model;

[0013] Figure 4 Figure is a schematic diagram of the overall structure of the utility model.

[0014] In the figure: 1, handle; 2, strip-shaped slot; 3, through hole; 4, dumbbell iron core; 5, strip-shaped protrusion; 6, notch; 7, stepped port; 8, circlip groove; 9, turntable; 10, baffle; 11, connecting column; 12, sealing cover; 13, rotary knob; 14, circlip. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0016] Please refer to Figures 1-4 A replaceable dumbbell iron core, which comprises a dumbbell iron core 4 installed at both ends of a handle 1, a plurality of annular strip-shaped protrusions 5 arranged in the inner ring of the dumbbell iron core 4, corresponding strip-shaped slots 2 arranged at both ends of the handle 1, the strip-shaped protrusions 5 being slidably inserted into the strip-shaped slots 2, a through hole 3 arranged in the strip-shaped slot 2, a baffle 10 inserted into the through hole 3 and capable of being retracted from the through hole 3, a notch 6 arranged on the strip-shaped protrusion 5, and the notch 6 corresponding to the through hole 3 and capable of inserting the baffle 10. The dumbbell iron core 4 is installed on the handle 1, the baffle 10 is clamped into the notch 6 to limit the axial position of the dumbbell iron core 4, and the strip-shaped protrusions 5 and the strip-shaped slots 2 cooperate to limit the radial position of the dumbbell iron core 4.

[0017] The handle 1 is provided with a turntable 9, the baffles 10 are arranged at the outer edge of the turntable 9, the baffles 10 are arc-shaped and can be elastically deformed towards the center of the turntable 9, the center of the turntable 9 is fixedly provided with a connecting column 11, the outer end of the connecting column 11 is fixedly connected with a sealing cover 12, the sealing cover 12 is arranged at the port of the handle 1 and is rotationally connected with the handle 1.

[0018] Specifically, the port of the handle 1 is provided with a stepped port 7, the inner wall of the stepped port 7 is provided with a circlip groove 8, the sealing cover 12 is installed in the stepped port 7 and is clamped with a circlip 14 in the circlip groove 8 to limit the sealing cover 12. The outer side of the sealing cover 12 is provided with a rotary knob 13. The rotary knob 13 can rotate the sealing cover 12 together with the turntable 9, thereby driving the baffles 10 to rotate, and the baffles 10 can be clamped into the notches 6 to limit and fix the dumbbell iron core 4 after being rotated to a certain angle.

[0019] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An easily replaceable dumbbell core comprising a dumbbell core (4) mounted at both ends of a handle (1), characterized in that: The dumbbell iron core (4) is provided with a plurality of annular strip-shaped protrusions (5) in the inner ring, the handle (1) is provided with corresponding strip-shaped grooves (2) at both ends, the strip-shaped protrusions (5) are slidingly inserted into the strip-shaped grooves (2), the strip-shaped grooves (2) are provided with through holes (3), the through holes (3) are inserted with stop flaps (10), the stop flaps (10) can be retracted from the through holes (3), the strip-shaped protrusions (5) are provided with notches (6), the notches (6) are corresponding to the through holes (3) and the stop flaps (10) can be inserted into the notches (6).

2. A replaceable dumbbell iron core according to claim 1, characterized in that: The handle (1) is provided with a rotating disc (9), the stop flaps (10) are distributed on the outer edge of the rotating disc (9), the stop flaps (10) are arc-shaped and can be elastically deformed towards the center of the rotating disc (9), the center of the rotating disc (9) is fixedly connected with a connecting column (11), the outer end of the connecting column (11) is fixedly connected with a sealing cover (12), the sealing cover (12) is arranged at the port of the handle (1) and is rotatably connected with the handle (1).

3. A replaceable dumbbell iron core as defined in claim 2, characterized in that: The handle (1) is provided with a stepped port (7) at the port, the inner wall of the stepped port (7) is provided with a snap spring groove (8), the sealing cover (12) is arranged in the stepped port (7) and is snap-connected with a snap spring (14) in the snap spring groove (8) to limit the sealing cover (12).

4. A replaceable dumbbell iron core as defined in claim 3, characterized in that: The sealing cover (12) is provided with a rotating knob (13) on the outer side.

Images