Weight-adjustable dumbbell

Abstract

The utility model discloses a weight-adjustable dumbbell which comprises a dumbbell rod, two supporting frames are connected to the two ends of the dumbbell rod, a fixing frame is connected to each supporting frame, a first supporting plate is connected to the inner wall of each fixing frame in a threaded mode, four cylindrical grooves and a cross groove are evenly formed in each supporting frame, and the first supporting plate is connected with a second supporting plate in a threaded mode. A fixing rod is arranged in the middle of the cross groove, the other end of the fixing rod penetrates through the first supporting plate and is in threaded connection with a first fixing nut, and a first balancing weight and a second balancing weight are placed in the four cylindrical grooves respectively. The dumbbell solves the problems that when the dumbbell pieces are continuously taken, placed and installed, the locking structure between the dumbbell pieces and the dumbbell becomes loose, and when the dumbbell is used, large-amplitude exercise actions possibly cause the risk that the balancing weight falls off.

Description

Technical Field

[0001] The utility model relates to the field of fitness equipment, in particular to a dumbbell with adjustable weight. Background Art

[0002] Dumbbells are simple and common fitness equipment, and different parts of muscles can be exercised through dumbbells. Compared with traditional integrally formed dumbbells, adjustable-weight dumbbells are often more favored by fitness enthusiasts in the market. By placing or removing dumbbell plates on the dumbbell rod, the weight of the dumbbell can be adjusted, making the dumbbell better meet the needs of exercise. However, when continuously placing and removing the dumbbell plates, the locking structure between the dumbbell plates and the dumbbell will become loose, and during large-scale exercise movements when using the dumbbell, there may be a risk of the counterweight falling off. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the existing defects and provide a dumbbell with adjustable weight, which can prevent the counterweight from loosening while adjusting the weight and reduce potential safety hazards.

[0004] The technical solution for realizing the above purpose is: a dumbbell with adjustable weight, including a dumbbell rod, two support frames are connected to both ends of the dumbbell rod, a fixing frame is connected to each support frame, a first support plate is threadedly connected to the inner wall of the fixing frame, four cylindrical grooves and a cross groove are evenly opened in each support frame, a fixing rod is arranged in the middle part of the cross groove, the other end of the fixing rod passes through the first support plate and is threadedly connected with a first fixing nut, the first fixing nut is closely attached to the first support plate, a first counterweight and a second counterweight are respectively placed in the four cylindrical grooves, the ends of the first counterweight and the second counterweight are closely attached to the first support plate, and an anti-slip component for facilitating disassembly is installed on the dumbbell rod.

[0005] Preferably, the anti-slip component includes two arched support plates, a plurality of water-absorbing sponges and eight third support plates. Two arched support plates are closely attached to the outer wall of the dumbbell rod. A plurality of water-absorbing sponges are evenly arranged on the outer wall of each arched support plate. Anti-slip lines are arranged between the water-absorbing sponges. A first anti-slip soft pad is arranged on the inner wall of each arched support plate. A plurality of third support plates are mirror-symmetrically arranged at both ends of each arched support plate. A plurality of through holes are opened in each third support plate, and a fixing bolt and a second fixing nut are installed in each through hole.

[0006] Preferably, a placement groove is opened on the first support plate, the first fixing nut is located in the placement groove, and a gasket is closely attached between the first fixing nut and the first support plate.

[0007] Preferably, both the first counterweight block and the second counterweight block are composed of two cylindrical counterweight blocks and a second support plate, and two ends of the second support plate are respectively connected to side walls of the two cylindrical counterweight blocks.

[0008] Preferably, the second support plate in the first counterweight block is aligned with ends of the two cylindrical counterweight blocks.

[0009] Preferably, the second support plate in the second counterweight block is close to ends of the two cylindrical counterweight blocks, and there is a distance between the second support plate and the ends of the two cylindrical counterweight blocks.

[0010] Preferably, second anti-slip pads are installed in the four cylindrical grooves.

[0011] Preferably, a third anti-slip pad is provided on the first support plate, and the third anti-slip pad is closely attached to the four cylindrical counterweight blocks.

[0012] The beneficial effects of the present utility model are as follows: Fixing frames are connected to each support frame, and a first support plate is threadedly connected to an inner wall of the fixing frame. Four cylindrical grooves and a cross groove are evenly formed in each support frame. A fixing rod is provided in a middle part of the cross groove, and the other end of the fixing rod passes through the first support plate and is threadedly connected to a first fixing nut. The first counterweight block and the second counterweight block are respectively placed in the four cylindrical grooves, and ends of the first counterweight block and the second counterweight block are closely attached to the first support plate. The weight of the device can be adjusted by taking and placing the first counterweight block and the second counterweight block. Meanwhile, the first counterweight block and the second counterweight block are placed in the four cylindrical grooves, and then the first counterweight block and the second counterweight block are locked by the first support plate. Through the fixing method of the double-thread structure, loosening of the counterweight block can be effectively prevented, and the safety hazard of the counterweight block falling off can be reduced;

[0013] Two arched support plates are closely attached to an outer wall of the dumbbell rod. A plurality of third support plates are mirror-symmetrically provided at two ends of each arched support plate. A plurality of through holes are formed in each third support plate, and fixing bolts and second fixing nuts are installed in the through holes. All the bolts and second fixing nuts installed on the third support plates are disassembled, and the anti-slip assembly is separated from the dumbbell rod, which is convenient for cleaning and disinfecting the anti-slip assembly. Description of the Drawings

[0014] Figure 1 is a perspective view of the present utility model;

[0015] Figure 2 is a partial cross-sectional view of the present utility model with the first support plate hidden;

[0016] Figure 3 is an exploded view of the present utility model;

[0017] Figure 4This is an exploded view of another perspective of the present utility model.

[0018] In the figure: 1, dumbbell rod; 2, support frame; 3, fixing frame; 4, first support plate; 5, fixing rod; 6, first counterweight; 7, second counterweight; 8, cylindrical counterweight; 9, second support plate; 11, cylindrical groove; 12, cross groove; 13, placement groove; 14, first fixing nut; 101, arched support plate; 102, water-absorbing sponge; 103, third support plate. Specific embodiments

[0019] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0020] Next, the present utility model will be further described in conjunction with the accompanying drawings.

[0021] As Figures 1-4 shown, an adjustable-weight dumbbell includes a dumbbell rod 1, two support frames 2, two fixing frames 3, two first support plates 4, two fixing rods 5, a first counterweight 6, a second counterweight 7, and an anti-slip assembly.

[0022] Specifically, two support frames 2 are connected to both ends of the dumbbell rod 1, a fixing frame 3 is connected to each support frame 2, a first support plate 4 is threadedly connected to the inner wall of the fixing frame 3, four cylindrical grooves 11 and a cross groove 12 are evenly formed in each support frame 2, a fixing rod 5 is provided in the middle part of the cross groove 12, the other end of the fixing rod 5 passes through the first support plate 4 and is threadedly connected to a first fixing nut 14, the first fixing nut 14 is in close contact with the first support plate 4, the first counterweight 6 and the second counterweight 7 are respectively placed in the four cylindrical grooves 11, the ends of the first counterweight 6 and the second counterweight 7 are in close contact with the first support plate 4, and an anti-slip assembly for facilitating disassembly is installed on the dumbbell rod 1.

[0023] Specifically, the anti-slip assembly includes two arched support plates 101, a plurality of water-absorbing sponges 102, and eight third support plates 103. Two arched support plates 101 are closely attached to the outer wall of the dumbbell rod 1. A plurality of water-absorbing sponges 102 are evenly arranged on the outer walls of the arched support plates 101. The water-absorbing sponges 102 can absorb the sweat on the exerciser's palms to prevent the device from slipping out of the hand due to hand sweat. Anti-slip patterns are provided between the water-absorbing sponges 102 to increase the friction between the exerciser's hand and the anti-slip assembly and improve the anti-slip effect of the device. First anti-slip cushions are provided on the inner walls of the arched support plates 101. The first anti-slip cushions can increase the friction between the two arched support plates 101 and the dumbbell rod 1 and improve the stability of the fixation of the two arched support plates 101 and the dumbbell rod 1. A plurality of third support plates 103 are mirror-symmetrically arranged at both ends of each arched support plate 101. A plurality of through holes are provided on each third support plate 103, and fixing bolts and second fixing nuts are installed in each through hole. By removing all the bolts and second fixing nuts installed on the third support plates 103, the anti-slip assembly can be separated from the dumbbell rod 1, which is convenient for cleaning and disinfecting the anti-slip assembly.

[0024] Specifically, a placement groove 13 is provided on the first support plate 4, and the first fixing nut 14 is located in the placement groove 13. By providing the placement groove 13, the first fixing nut 14 is hidden to prevent the protrusion of the first fixing nut 14 from affecting daily use. A gasket is closely attached between the first fixing nut 14 and the first support plate 4.

[0025] Specifically, both the first counterweight 6 and the second counterweight 7 are composed of two cylindrical counterweights 8 and a second support plate 9. The two ends of the second support plate 9 are respectively connected to the side walls of the two cylindrical counterweights 8. The second support plate 9 in the first counterweight 6 is aligned with the ends of the two cylindrical counterweights 8, and the second support plate 9 in the second counterweight 7 is close to the ends of the two cylindrical counterweights 8, and there is a certain distance between the second support plate 9 and the ends of the two cylindrical counterweights 8.

[0026] Specifically, second anti-slip pads are installed in each of the four cylindrical grooves 11, and a third anti-slip pad is provided on the first support plate 4. The third anti-slip pad is closely attached to the four cylindrical counterweights 8. Through the cooperation of the multiple second anti-slip pads and the third anti-slip pad, the first counterweight 6 and the second counterweight 7 can be fastened in the four cylindrical grooves 11 and a cross groove 12, improving the stability of the fixation of the first counterweight 6 and the second counterweight 7.

[0027] Working principle: When it is necessary to adjust the weight of the dumbbell, there are three weight configuration methods. The first weight configuration method is to remove all the first weight blocks 6 and the second weight blocks 7 at both ends of the device, and then install the first support plate 4 on the corresponding fixing frame 3. The second weight configuration method is to remove either the first weight block 6 or the second weight block 7 at both ends of the device. Only two first weight blocks 6 or two second weight blocks 7 are retained on the support frame 2, and then the first support plate 4 is installed on the corresponding fixing frame 3. The third weight configuration method is to place all the first weight blocks 6 and the second weight blocks 7 at both ends of the device inside the support frame 2, and then install the first support plate 4 on the corresponding fixing frame 3.

[0028] After the exerciser has finished exercising, in order to ensure the hygiene and safety of the device, all the bolts and the second fixing nuts installed on the third support plate 103 are removed, and the anti-slip assembly is separated from the dumbbell rod 1, which is convenient for cleaning and disinfecting the anti-slip assembly.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable-weight dumbbell, characterized in that, It includes a dumbbell rod (1), two support frames (2) are connected to both ends of the dumbbell rod (1), a fixing frame (3) is connected to each of the support frames (2), a first support plate (4) is threadedly connected to the inner wall of the fixing frame (3), four cylindrical grooves (11) and a cross groove (12) are evenly formed in each of the support frames (2), a fixing rod (5) is provided in the middle part of the cross groove (12), the other end of the fixing rod (5) passes through the first support plate (4) and is threadedly connected with a first fixing nut (14), the first fixing nut (14) is in close contact with the first support plate (4), a first counterweight block (6) and a second counterweight block (7) are respectively placed in the four cylindrical grooves (11), the ends of the first counterweight block (6) and the second counterweight block (7) are in close contact with the first support plate (4), and an anti-slip component for facilitating disassembly is installed on the dumbbell rod (1).

2. The adjustable dumbbell according to claim 1, wherein The anti-slip component includes two arched support plates (101), a plurality of water-absorbing sponges (102) and eight third support plates (103), two of the arched support plates (101) are in close contact with the outer wall of the dumbbell rod (1), a plurality of the water-absorbing sponges (102) are evenly provided on the outer wall of each of the arched support plates (101), anti-slip lines are provided between the water-absorbing sponges (102), a first anti-slip soft pad is provided on the inner wall of each of the arched support plates (101), a plurality of the third support plates (103) are mirror-symmetrically provided at both ends of each of the arched support plates (101), a plurality of through holes are formed in each of the third support plates (103), and fixing bolts and second fixing nuts are installed in the through holes.

3. A weight-adjustable dumbbell according to claim 2, wherein, A placement groove (13) is formed in the first support plate (4), the first fixing nut (14) is located in the placement groove (13), and a gasket is in close contact between the first fixing nut (14) and the first support plate (4).

4. A weight-adjustable dumbbell according to claim 1, wherein, Both the first counterweight block (6) and the second counterweight block (7) are composed of two cylindrical counterweight blocks (8) and a second support plate (9), and both ends of the second support plate (9) are respectively connected to the side walls of the two cylindrical counterweight blocks (8).

5. A weight-adjustable dumbbell according to claim 4, wherein The second support plate (9) in the first counterweight block (6) is aligned with the ends of the two cylindrical counterweight blocks (8).

6. The adjustable dumbbell according to claim 4, wherein, The second support plate (9) in the second counterweight block (7) is close to the ends of the two cylindrical counterweight blocks (8), and there is a distance between the second support plate (9) and the ends of the two cylindrical counterweight blocks (8).

7. A weight-adjustable dumbbell according to claim 1, characterized in that, A second anti-slip pad is installed in each of the four cylindrical grooves (11).

8. A weight-adjustable dumbbell according to claim 4, wherein, A third anti-slip pad is provided on the first support plate (4), and the third anti-slip pad is in close contact with the four cylindrical counterweight blocks (8).

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