Locking structure of adjustable dumbbell

Abstract

The utility model provides an adjustable dumbbell locking structure which comprises a dumbbell holding rod and dumbbell piece seats connected to the two ends of the dumbbell holding rod, each dumbbell piece seat comprises a connecting rod and two end covers, the two end covers are arranged in a spaced mode and are fixedly connected through the connecting rod, and a dumbbell piece installation area is formed between the two end covers. A rotation stopping disc and elastic clamping tongues are arranged on the end cover, the rotation stopping disc is in linkage with the dumbbell holding rod, a plurality of clamping openings are evenly distributed in the circumferential direction of the rotation stopping disc, and the elastic clamping tongues are arranged at the bottom of the end cover and can be clamped into the clamping openings to limit rotation of the rotation stopping disc. According to the dumbbell with the locking structure, it can be ensured that the dumbbell holding rod is in a locking state and cannot slip in the training process of the dumbbell.

Description

Technical Field

[0001] The utility model relates to a locking structure of an adjustable dumbbell. Background Art

[0002] Dumbbells are common fitness equipment. Currently, some dumbbells on the market allow users to adjust the number of dumbbell plates, or in other words, the overall weight, by rotating the dumbbell grip. This allows users to adjust the weight at any time according to their training needs. These dumbbells are popular due to their ease of use. However, these dumbbells also have drawbacks. For example, during dumbbell training, the dumbbell grip can slip. This slippage occurs when the dumbbell grip and the dumbbell plates rotate relative to each other, making it difficult for users to hold the dumbbells securely, which can lead to safety accidents. Utility Model Content

[0003] In order to solve the above problems, the present invention proposes a locking structure for an adjustable dumbbell. With the locking structure, the dumbbell can be prevented from slipping during training.

[0004] The utility model proposes a locking structure of an adjustable dumbbell, which includes a dumbbell grip and a dumbbell plate holder connected to both ends of the dumbbell grip, the dumbbell plate holder includes a connecting rod and two end covers, the two end covers are arranged at intervals and are connected and fixed by the connecting rod, and a dumbbell plate installation area is formed between the two end covers, a rotation-stop disk and an elastic latch are provided on the end covers, the rotation-stop disk is linked to the dumbbell grip, and a plurality of latches are evenly distributed circumferentially on the rotation-stop disk, the elastic latch is arranged at the bottom position of the end cover and can be latched into the latch to limit the rotation of the rotation-stop disk.

[0005] In one or more embodiments, a cavity for installing an elastic tongue is provided at the bottom of the end cover, and the elastic tongue includes a first spring and a first locking tongue, and the first spring member is respectively abutted against the cavity and the first locking tongue.

[0006] In one or more embodiments, a plurality of blocking pieces are distributed on the outer edge of the anti-rotation disk, and the blocking piece forms the blocking piece.

[0007] In one or more embodiments, a rotatable wheel and a telescopic part are provided inside the end cover. The wheel is connected to the anti-rotation disk, and a plurality of grooves are evenly distributed circumferentially on the wheel. The telescopic part can be extended and retracted when the wheel rotates and enter different grooves accordingly.

[0008] In one or more embodiments, the telescopic portion includes a second spring member and a second locking tongue. A mounting groove is provided on the end cover to accommodate the second spring member and the second locking tongue. The second spring member is respectively abutted against the mounting groove and the second locking tongue.

[0009] In one or more embodiments, the number of the telescopic parts is two or more.

[0010] In one or more embodiments, the wheel disc and the anti-rotation disc are fixed together by screws.

[0011] Compared with the prior art, this solution has the beneficial effect that the dumbbell with the locking structure can ensure that the dumbbell grip is in a locked state during training and will not slip. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the dumbbell grip and dumbbell plate holder of this utility model;

[0013] Figure 2 Schematic diagram of the internal structure of the practical end cover;

[0014] Figure 3 It is a structural diagram of the practical anti-rotation disk. DETAILED DESCRIPTION

[0015] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0016] Please see attached Figure 1-3 The utility model provides a locking structure of an adjustable dumbbell, which includes a dumbbell grip 1 and a dumbbell plate holder connected to the two ends of the dumbbell grip. The dumbbell plate holder includes a connecting rod 2 and two end covers 3. The two end covers are arranged at intervals and are connected and fixed by the connecting rod 2. A dumbbell plate installation area is formed between the two end covers. The end covers 3 are provided with a rotation-stop disk 4 and an elastic tongue. The rotation-stop disk is linked to the dumbbell grip 1. A plurality of bayonet holes 5 are evenly distributed on the circumference of the rotation-stop disk 4. The elastic tongue is arranged at the bottom position of the end cover 3 and can be stuck in the bayonet hole to limit the rotation of the rotation of the rotation disk 4. When the user is lifting the dumbbells normally, the elastic tongue is stuck on the bayonet hole, thereby limiting the rotation of the rotation disk and also limiting the rotation and slipping of the dumbbell grip. The advantage of arranging elastic tongues on the two end covers is that the rotation of the dumbbell grip can be further locked, solving the slipping problem. Even if the elastic tongue on one of the end covers fails, the other elastic tongues can still play a locking role.

[0017] A cavity for installing an elastic latch tongue is provided at the bottom of the end cover 3. The elastic latch tongue includes a first spring 6 and a first lock tongue 7. The first spring member is respectively against the cavity and the first lock tongue. With this structure, it can be ensured that the first lock tongue always maintains an outward protruding force under the elastic force of the first spring, ensuring that it is firmly stuck on the bayonet.

[0018] A plurality of baffles 8 are distributed on the outer edge of the anti-rotation disk 4, and the bayonet 5 is formed between the baffles. The baffles are bent inwardly to form a high structural strength and are not easily deformed.

[0019] A rotatable wheel 9 and a telescopic part are provided inside the end cover 3. The wheel is connected to the anti-rotation disk 4. A plurality of grooves 10 are evenly distributed circumferentially on the wheel. The telescopic part can be telescoped and extended when the wheel rotates and enters different grooves accordingly. When the user needs to adjust the weight of the dumbbell and rotates the dumbbell grip, the wheel rotates with the dumbbell grip, and the telescopic part enters different grooves in turn, which has a damping effect and a gear effect. When the user stops rotating the dumbbell grip, the wheel is positioned to determine the gear position of the current dumbbell weight.

[0020] The telescopic part includes a second spring member 11 and a second locking tongue 12. The end cover is provided with a mounting groove to accommodate the second spring member and the second locking tongue. The second spring member is respectively abutted against the mounting groove and the second locking tongue. Under the action of the second spring, the second locking tongue always remains abutted against the wheel disc.

[0021] The number of the telescopic parts is two or more, which can be selected according to actual needs and is not limited here.

[0022] The wheel disc 9 and the anti-rotation disc 4 are fixed together by screw connection, and the use of screws for fixing has the advantage of being easy to assemble and disassemble.

[0023] The above description is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the content disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A locking structure for an adjustable dumbbell, characterized by: The dumbbell plate holder comprises a dumbbell grip (1) and a dumbbell plate holder connected to both ends of the dumbbell grip. The dumbbell plate holder comprises a connecting rod (2) and two end covers (3). The two end covers are spaced apart and connected and fixed by the connecting rod (2). A dumbbell plate installation area is formed between the two end covers. A rotation-stop disk (4) and an elastic latch are provided on the end covers (3). The rotation-stop disk is linked to the dumbbell grip (1). A plurality of latches (5) are evenly distributed circumferentially on the rotation-stop disk (4). The elastic latch is provided at the bottom of the end covers (3) and can be latched into the latch to limit the rotation of the rotation-stop disk (4).

2. The locking structure of an adjustable dumbbell according to claim 1, characterized in that: A cavity for installing an elastic latch tongue is provided at the bottom of the end cover (3); the elastic latch tongue comprises a first spring (6) and a first locking tongue (7); the first spring member is respectively in contact with the cavity and the first locking tongue.

3. The locking structure of an adjustable dumbbell according to claim 1, characterized in that: A plurality of baffles (8) are distributed on the outer edge of the anti-rotation disk (4), and the bayonet (5) is formed between the baffles.

4. The locking structure of an adjustable dumbbell according to any one of claims 1 to 3, characterized in that: A rotatable wheel disc (9) and a telescopic portion are provided inside the end cover (3). The wheel disc is linked to the anti-rotation disc (4). A plurality of grooves (10) are evenly distributed circumferentially on the wheel disc. The telescopic portion can be extended and retracted when the wheel disc rotates and enter different grooves accordingly.

5. The locking structure of an adjustable dumbbell according to claim 4, characterized in that: The telescopic portion comprises a second spring member (11) and a second locking tongue (12); a mounting groove is provided on the end cover to accommodate the second spring member and the second locking tongue; the second spring member is respectively in contact with the mounting groove and the second locking tongue.

6. The locking structure of an adjustable dumbbell according to claim 4, characterized in that: The number of the telescopic parts is two or more.

7. The locking structure of an adjustable dumbbell according to claim 4, characterized in that: The wheel disc (9) and the anti-rotation disc (4) are fixed together by screw connection.

Images