Dumbbell rod locking structure

Abstract

The utility model provides a dumbbell rod locking structure which comprises a dumbbell holding rod and end covers connected to the two ends of the dumbbell holding rod, each end cover is provided with a locking disc and an elastic spring bolt, a wheel disc connected with the dumbbell holding rod in a linkage mode is arranged in each end cover, a plurality of gear grooves are evenly distributed in the periphery of each wheel disc, and telescopic parts extending into the gear grooves are arranged on the end covers. The telescopic part can stretch out and draw back when the wheel disc rotates and enter different gear grooves along with the wheel disc, the locking disc is connected and linked with the wheel disc, a plurality of locking openings are evenly distributed in the locking disc in the circumferential direction, and the elastic spring bolt is arranged at the bottom of the end cover and can be clamped into the locking openings to limit rotation of the locking disc. According to the dumbbell with the locking structure, it can be ensured that the dumbbell holding rod is in a locked state and cannot slip in the training process of the dumbbell.

Description

Technical Field

[0001] The utility model relates to a dumbbell bar locking structure. Background Art

[0002] Dumbbells are common fitness equipment. Currently, there is a type of dumbbell on the market that can adjust the number of dumbbell plates by rotating the dumbbell grip, that is, adjust the overall weight of the dumbbell, so that users can adjust the weight at any time according to training needs. It is easy to use and is deeply loved by people. However, this type of dumbbell has also been found to have its disadvantages during use. For example, when users use dumbbells for training, the dumbbell grip will slip. The slip refers to the relative rotation of the dumbbell grip and the dumbbell plates, which makes it difficult for users to hold the dumbbells steadily due to the slipping of the dumbbell grip, which is prone to safety accidents. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a dumbbell rod locking structure, which can prevent the dumbbell from slipping during training.

[0004] The utility model proposes a dumbbell bar locking structure, which comprises a dumbbell grip and end covers connected at both ends of the dumbbell grip, a locking disk and an elastic locking tongue are arranged on the end covers, a wheel disc connected and linked with the dumbbell grip is arranged inside the end covers, a plurality of gear grooves are evenly distributed on the outer circumference of the wheel disc, a telescopic part extending into the gear groove is arranged on the end covers, the telescopic part can be telescoped and extended when the wheel disc rotates and enters different gear grooves accordingly, the locking disk is connected and linked with the wheel disc, a plurality of locking openings are evenly distributed on the locking disk in a circumferential direction, the elastic locking tongue is arranged at the bottom position of the end cover and can be clamped in the locking opening to limit the rotation of the locking disk.

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

[0006] In one or more embodiments, the telescopic portion includes a second spring member and a second locking tongue, the end cover is provided with a mounting groove to accommodate the second spring member and the second locking tongue, and the second spring member is respectively abutted against the mounting groove and the second locking tongue.

[0007] In one or more embodiments, two telescopic parts are provided on the end cover, and the two telescopic parts are symmetrically arranged on the left and right.

[0008] In one or more embodiments, the locking plate is arranged on the inner side surface of the end cover, a plurality of positioning parts are arranged on the wheel plate in the direction toward the locking plate, and a positioning hole connected to the positioning part is opened on the locking plate.

[0009] 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

[0010] Figure 1 This is a schematic diagram of the structure of a dumbbell with a locking structure (without dumbbell plates);

[0011] Figure 2 for Figure 1 Sectional view through the central axis;

[0012] Figure 3 Schematic diagram of the internal structure of the practical end cover. DETAILED DESCRIPTION

[0013] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0014] Please see attached Figure 1-3 The utility model provides a dumbbell bar locking structure, which includes a dumbbell grip 1 and end covers 2 connected to both ends of the dumbbell grip, a locking plate 3 and an elastic locking tongue are arranged on the end covers, a wheel disc 4 connected and linked to the dumbbell grip 1 is arranged inside the end covers, a plurality of gear grooves 5 are evenly distributed on the periphery of the wheel disc, a telescopic part extending into the gear groove is arranged on the end covers, the telescopic part can be telescoped and extended when the wheel disc 4 rotates and enter different gear grooves accordingly, the cooperation between the telescopic part and the gear groove produces a damping effect when the wheel disc rotates, and emits a "click-click-click" sound, The user is prompted that the dumbbell grip is being rotated to adjust the gear position. The locking plate 3 is connected and linked with the wheel plate 4. A plurality of locking openings 6 are evenly distributed circumferentially on the locking plate 3. An elastic locking tongue is arranged at the bottom position of the end cover 2 and can be inserted into the locking opening 6 to limit the rotation of the locking plate. Under normal circumstances, the elastic locking tongue extends into the locking opening. In this case, the locking plate is in a state where it cannot rotate. Since the dumbbell grip and the wheel plate are linked with the locking plate, they are also in a locked state. Therefore, the dumbbell grip can be prevented from rotating and slipping when the dumbbells are used for training.

[0015] A cavity 7 for installing an elastic locking tongue is provided at the bottom position of the end cover 2. The elastic locking tongue includes a first spring member 8 and a first locking tongue 9. The first spring member is respectively abutted against the cavity and the first locking tongue. The dumbbell grip can be rotated only after the first locking tongue is pressed to exit the locking mouth. Currently, the dumbbell seats on the market are equipped with corresponding ejection parts for pressing the first locking tongue. That is, the dumbbell grip can be rotated to adjust the weight of the dumbbell only after the dumbbell is put back on the dumbbell seat. When the dumbbell is lifted up again after the weight is adjusted, the first locking tongue is reinserted into the locking mouth to lock the dumbbell grip under the elastic force of the first spring member.

[0016] The telescopic part includes a second spring member 10 and a second locking tongue 11. The end cover 2 is provided with a mounting groove 12 to accommodate the second spring member and the second locking tongue. The second spring member is respectively against the mounting groove and the second locking tongue. During the rotation of the wheel, the first spring member is deformed from compression to recovery, and the cooperation between the second locking tongue and the gear groove achieves a damping effect. Preferably, two telescopic parts are provided on the end cover 2, and the two telescopic parts are symmetrically arranged.

[0017] The locking plate 3 is arranged on the inner side surface of the end cover 2, and the wheel disc 4 is provided with a plurality of positioning parts 41 in the direction of the locking plate. The locking plate is provided with positioning holes 31 connected to the positioning parts. The positioning parts can specifically be positioning columns. By adopting a simple structural combination of the positioning parts and the positioning holes, the connection and linkage between the wheel disc and the locking plate can be realized.

[0018] The above description is only a preferred embodiment of the present invention, and 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 contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A dumbbell bar locking structure, characterized in that: The dumbbell grip comprises a dumbbell handle (1) and an end cover (2) connected to both ends of the dumbbell handle, wherein a locking plate (3) and an elastic locking tongue are provided on the end cover, a wheel disc (4) connected and linked to the dumbbell handle (1) is provided inside the end cover, a plurality of gear grooves (5) are evenly distributed on the outer circumference of the wheel disc, a telescopic portion extending into the gear groove is provided on the end cover, and the telescopic portion can be telescoped and enter different gear grooves when the wheel disc (4) rotates, the locking plate (3) is connected and linked to the wheel disc (4), a plurality of locking openings (6) are evenly distributed circumferentially on the locking plate (3), and the elastic locking tongue is provided at the bottom of the end cover (2) and can be inserted into the locking opening (6) to limit the rotation of the locking plate.

2. A dumbbell bar locking structure according to claim 1, characterized in that: A cavity (7) for installing an elastic locking tongue is provided at the bottom of the end cover (2); the elastic locking tongue comprises a first spring member (8) and a first locking tongue (9); the first spring member is respectively in contact with the cavity and the first locking tongue.

3. A dumbbell bar locking structure according to claim 1, characterized in that: The telescopic portion comprises a second spring member (10) and a second locking tongue (11); the end cover (2) is provided with a mounting groove (12) for accommodating 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.

4. A dumbbell bar locking structure according to claim 1 or 3, characterized in that: The end cover (2) is provided with two telescopic parts, and the two telescopic parts are arranged symmetrically on the left and right.

5. A dumbbell bar locking structure according to claim 1, characterized in that: The locking plate (3) is arranged on the inner side surface of the end cover (2), the wheel disc (4) is provided with a plurality of positioning parts (41) in the direction facing the locking plate, and the locking plate is provided with positioning holes (31) connected to the positioning parts.

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