Novel detachable dumbbell

Abstract

The utility model relates to the technical field of fitness equipment, and discloses a novel detachable dumbbell which comprises a mounting rod, a holding portion is fixedly sleeved in the middle of the mounting rod, two blocking pieces are fixedly connected to the surface of the mounting rod and located on the two sides of the holding portion, dumbbell pieces are sleeved on the surface of the mounting rod, and the dumbbell pieces are fixedly connected to the surface of the mounting rod and located on the two sides of the holding portion. The dumbbell pieces are located on the sides, away from the holding part, of the blocking pieces, and a fixing structure is arranged on the surface of the mounting rod. By arranging the fixing structure, when the rotating handle is operated to rotate, the dumbbell pieces can rapidly fall on the surface of the mounting rod, when the rotating handle is loosened, the clamping keys are pulled through the coil springs, the dumbbell pieces can be blocked, the clamping keys are located in the expansion notches of the dumbbell pieces, the dumbbell pieces can be blocked, and half of the width of the clamping keys is equal to the width of the expansion notches; the adjacent dumbbell pieces can be tightly attached, shaking of the dumbbell pieces is effectively avoided, the dumbbell pieces are blocked through the clamping keys, and falling of the dumbbell pieces can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, in particular to a novel detachable dumbbell. Background Art

[0002] like Figure 1 As shown, most existing detachable dumbbells have this type of structure, including a mounting rod 1, a grip portion 2, a baffle 3, a dumbbell plate 4, and a tightening ring 11. The mounting rod 1 is provided with threads on both ends. After the dumbbell plate 4 is placed on the surface of the mounting rod 1, the tightening ring 11 is rotated to engage with the threads on the surface of the mounting rod 1, and finally the dumbbell plate 4 is clamped between the tightening ring 11 and the baffle 3, thereby completing the installation of the dumbbell plate 4. When removing the dumbbell plate 4, the tightening ring 11 needs to be unscrewed from the surface of the mounting rod 1 before the dumbbell plate 4 can be removed. The entire process is slow. Moreover, this dumbbell that uses the tightening ring 11 to tighten the dumbbell plate 4 can easily loosen the tightening ring 11 after a period of use. The dumbbell plate 4 itself has a certain weight, which poses a certain safety hazard. Therefore, those skilled in the art provide a new type of detachable dumbbell to solve the problems raised in the above background technology. Utility Model Content

[0003] The purpose of the present invention is to provide a novel detachable dumbbell to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A new type of detachable dumbbell includes a mounting rod, a grip portion is fixedly mounted on the middle portion of the mounting rod, two baffles are fixedly connected to the surface of the mounting rod, the baffles are located on both sides of the grip portion, a dumbbell plate is mounted on the surface of the mounting rod, the dumbbell plate is located on the side of the baffle away from the grip portion, and a fixing structure is provided on the surface of the mounting rod.

[0006] As a further solution of the present invention: the fixing structure includes a key, and every two of the keys are arranged into a group, and the two keys in the same group are symmetrical about the central axis of the mounting rod. The keys in each group are equidistantly arranged on the surface of the mounting rod, and a sliding cavity is opened inside the mounting rod. The bottom end of the key extends and slides inside the sliding cavity. An inner shaft is arranged for rotation inside the mounting rod, and a coil spring is sleeved on the surface of the inner shaft. One end of the coil spring is fixed to the surface of the inner shaft, and the other end of the coil spring is fixed to the end surface of the key located inside the sliding cavity.

[0007] As a further solution of the present invention: one end of the inner shaft away from the baffle extends to the outside of the mounting rod, and the end of the inner shaft is fixedly connected to a rotating handle, the surface of the rotating handle is provided with anti-slip grooves, and the diameter of the rotating handle is smaller than the diameter of the mounting rod.

[0008] As a further solution of the present invention: expansion notches are provided on both sides of the dumbbell piece along the mounting hole thereof, and the thickness of the expansion notches is equal to half the thickness of the key.

[0009] As a further solution of the present invention: the minimum distance between two adjacent keys is equal to the width of the dumbbell plate mounting hole.

[0010] As a further solution of the present invention, the end of the mounting rod and the end of the rotating handle away from the blocking piece are both chamfered.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] By setting up a fixed structure, when the rotating handle is rotated, the dumbbell plates can be quickly dropped onto the surface of the mounting rod, and when the rotating handle is released, the coil spring is used to pull the card key to block the dumbbell plates, and the card key is located in the expanded notch of the dumbbell plates, which can block the dumbbell plates, and half of the width of the card key is equal to the width of the expanded notch, which can make the adjacent dumbbell plates fit tightly together, effectively preventing the dumbbell plates from shaking. By blocking the dumbbell plates with the card key, the dumbbell plates can be prevented from falling off, and when the dumbbell is used, the dumbbell plates can be prevented from falling off due to shaking, which is safer. When installing and replacing the dumbbell plates, you only need to operate the rotating handle to rotate, and the whole process is faster and saves time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of an existing detachable dumbbell;

[0014] Figure 2 It is a structural diagram of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0016] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at A in the middle;

[0017] Figure 5 The figure is a schematic diagram of the structure of dumbbell plates in a new type of detachable dumbbell.

[0018] In the figure: 1. Mounting rod; 2. Grip; 3. Blocking plate; 4. Dumbbell plate; 5. Rotating handle; 6. Key; 7. Inner shaft; 8. Coil spring; 9. Sliding cavity; 10. Expansion notch; 11. Tightening ring. DETAILED DESCRIPTION

[0019] See also Figures 2 to 5 In an embodiment of the present invention, a new type of detachable dumbbell includes a mounting rod 1, a gripping portion 2 is fixedly sleeved on the middle part of the mounting rod 1, two baffles 3 are fixedly connected to the surface of the mounting rod 1, the baffles 3 are located on both sides of the gripping portion 2, a dumbbell piece 4 is sleeved on the surface of the mounting rod 1, the dumbbell piece 4 is located on the side of the baffle 3 away from the gripping portion 2, and a fixing structure is provided on the surface of the mounting rod 1.

[0020] Preferably, the fixing structure includes a card key 6, and every two card keys 6 are arranged into a group. The two card keys 6 in the same group are symmetrical about the central axis of the mounting rod 1. The card keys 6 in each group are equidistantly arranged on the surface of the mounting rod 1. A sliding cavity 9 is opened inside the mounting rod 1. The bottom end of the card key 6 extends and slides inside the sliding cavity 9. An inner shaft 7 is provided for rotation inside the mounting rod 1. A coil spring 8 is provided on the surface of the inner shaft 7. One end of the coil spring 8 is fixed to the surface of the inner shaft 7, and the other end of the coil spring 8 is fixed to the end surface of the card key 6 located inside the sliding cavity 9.

[0021] Preferably, one end of the inner shaft 7 away from the baffle 3 extends to the outside of the mounting rod 1, and the end of the inner shaft 7 is fixedly connected to a rotating handle 5, the surface of the rotating handle 5 is provided with anti-slip grooves, and the diameter of the rotating handle 5 is smaller than the diameter of the mounting rod 1.

[0022] Preferably, expansion notches 10 are provided on both sides of the dumbbell piece 4 along its mounting hole, the thickness of the expansion notch 10 is equal to half the thickness of the key 6, and the minimum distance between two adjacent keys 6 is equal to the width of the mounting hole of the dumbbell piece 4, which can make the dumbbell pieces 4 fit tightly against each other and prevent the dumbbell pieces from shaking.

[0023] Preferably, the end of the mounting rod 1 and the end of the rotating handle 5 away from the blocking piece 3 are both chamfered, which can make it easier for the dumbbell piece 4 to be inserted into the surface of the mounting rod 1.

[0024] When the dumbbell piece 4 needs to be replaced or disassembled, the rotating handle 5 is rotated again to retract the card key 6 into the interior of the sliding cavity 9, and the card key 6 does not block the dumbbell piece 4, and then the dumbbell piece 4 is disassembled and replaced.

[0025] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A novel detachable dumbbell, comprising a mounting rod (1), a gripping portion (2) fixedly sleeved on the middle portion of the mounting rod (1), two baffles (3) fixedly connected to the surface of the mounting rod (1), the baffles (3) being located on both sides of the gripping portion (2), a dumbbell plate (4) sleeved on the surface of the mounting rod (1), the dumbbell plate (4) being located on a side of the baffle (3) away from the gripping portion (2), and characterized in that: A fixing structure is provided on the surface of the mounting rod (1).

2. A novel detachable dumbbell according to claim 1, characterized in that: The fixing structure includes a key (6), and every two of the keys (6) are arranged into a group. The two keys (6) in the same group are symmetrical about the central axis of the mounting rod (1). The keys (6) in each group are equidistantly arranged on the surface of the mounting rod (1). A sliding cavity (9) is opened inside the mounting rod (1). The bottom end of the key (6) extends and slides inside the sliding cavity (9). An inner shaft (7) is rotatably arranged inside the mounting rod (1). A coil spring (8) is sleeved on the surface of the inner shaft (7). One end of the coil spring (8) is fixed to the surface of the inner shaft (7), and the other end of the coil spring (8) is fixed to the end surface of the key (6) located inside the sliding cavity (9).

3. A novel detachable dumbbell according to claim 2, characterized in that: One end of the inner shaft (7) away from the baffle (3) extends to the outside of the mounting rod (1), and a rotating handle (5) is fixedly connected to the end of the inner shaft (7). The surface of the rotating handle (5) is provided with anti-slip grooves, and the diameter of the rotating handle (5) is smaller than the diameter of the mounting rod (1).

4. The novel detachable dumbbell according to claim 2, characterized in that: Both sides of the dumbbell plate (4) are provided with expansion notches (10) along the mounting holes thereof, and the thickness of the expansion notches (10) is equal to half the thickness of the key (6).

5. The novel detachable dumbbell according to claim 4, characterized in that: The minimum distance between two adjacent latches (6) is equal to the width of the mounting hole of the dumbbell plate (4).

6. The novel detachable dumbbell according to claim 3, characterized in that: The end of the mounting rod (1) and the end of the rotating handle (5) away from the blocking piece (3) are both chamfered.

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