Adjustable dumbbell

Abstract

The utility model relates to the technical field of dumbbells, and discloses an adjustable dumbbell, which solves the problem that better practicability is inconvenient to achieve due to the fact that the weight of the weight-adjustable dumbbell is inconvenient to increase or decrease quickly in the using process, and comprises a main rod, and a handheld groove is formed in the outer side of the middle of the main rod. Round baffles are fixedly installed at the two ends of the main rod correspondingly, a square rod is fixedly installed on the sides, away from the main rod, of the round baffles, three dumbbell pieces are movably installed on the outer side of the square rod, square openings matched with the square rod are formed in the middles of the three dumbbell pieces in a penetrating mode correspondingly, and triangular indication grooves are formed in the top ends of one sides of the three dumbbell pieces correspondingly. Fixing holes are formed in the middles of the top ends of the three dumbbell pieces, and an adjusting and fixing assembly is fixedly installed on the outer side of the main rod; according to the weight-adjustable dumbbell disclosed by the utility model, in the use process of the weight-adjustable dumbbell, the weight can be conveniently and quickly increased and decreased, so that better practicability can be conveniently achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dumbbells, in particular to an adjustable dumbbell. Background Art

[0002] Dumbbell is a simple equipment used to enhance muscle strength training. Its main material is cast iron, and some are covered with a layer of rubber. It is used for muscle strength training and muscle compound movement training. Dumbbells are of two types: fixed weight and adjustable weight. The adjustable weight dumbbell is made by opening threads on the outside of both ends of the dumbbell rod, and then using suitable nuts to fix the weighted round iron plate. However, during the use of the adjustable weight dumbbell, it is not convenient to quickly increase or decrease the weight, which makes it difficult to achieve better practicality. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an adjustable dumbbell, which effectively solves the problem that the weight of the adjustable dumbbell is not easy to increase or decrease quickly during use, thereby not being easy to achieve better practicality.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable dumbbell, comprising a main rod, a grip groove is provided on the outer side of the middle part of the main rod, circular baffles are fixedly installed at both ends of the main rod, a square rod is fixedly installed on the side of the circular baffle away from the main rod, three dumbbell plates are movably installed on the outer side of the square rod, and square openings matching the square rod are penetrated through the middle parts of the three dumbbell plates, the three dumbbell plates have the same thickness, and the diameters of the three dumbbell plates decrease successively, a triangular indicator groove is provided on the top of one side of the three dumbbell plates, and the pointed ends of the triangular indicator groove face upwards, and a fixing hole is provided in the middle of the top of the three dumbbell plates, an adjustment fixing assembly is fixedly installed on the outer side of the main rod, and the adjustment fixing assembly is connected to the dumbbell plates through the fixing hole.

[0005] Preferably, the adjustment and fixing assembly includes symmetrically arranged positioning seats, and the two positioning seats are symmetrically fixedly installed on the outside of the main rod, the tops of the two positioning seats are fixedly installed with positioning frames, and both sides of the positioning frames are open structures, a positioning vertical rod is fixedly installed inside the positioning frame, a movable sleeve is slidably installed on the outside of the bottom end of the positioning vertical rod, a positioning spring is provided at the top of the movable sleeve and located on the outside of the positioning vertical rod, and the top of the positioning spring is fixedly connected to the inner top end of the positioning frame, a first connecting rod is fixedly installed on the side away from each other of the two movable sleeves, and the first connecting rod is an L-shaped structure, a movable bar is fixedly installed on the top of the first connecting rod, and three fixing rods are evenly fixedly installed on the bottom of the movable bar, and the lengths of the three fixing rods increase and decrease in sequence with the diameters of the three dumbbell plates, and the bottom of the fixing rod extends to the inside of the fixing hole.

[0006] Preferably, a second connecting rod is fixedly installed on the side where the two movable sleeves are close to each other, and the second connecting rod is an L-shaped structure. A connecting strip is fixedly installed between the top ends of the two second connecting rods, and a handle groove is opened on the outer side of the middle part of the connecting strip.

[0007] Preferably, a support frame is symmetrically fixedly installed on the outer side of the main rod, and the support frame is an L-shaped structure.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] 1) During operation, the main rod, the circular baffle, the square rod, the dumbbell piece, the triangular indicator groove, the fixing hole and the adjusting and fixing assembly interact with each other, so that the dumbbell with adjustable weight can be easily and quickly increased or decreased in weight during use, thereby achieving better practicality;

[0010] 2) During work, the support frame can be set up to facilitate better placement of the dumbbells during use, thereby ensuring the stability of the dumbbells when placed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0012] In the attached picture:

[0013] Figure 1 This is a schematic diagram of the structure of an adjustable dumbbell of the utility model;

[0014] Figure 2 This is a schematic diagram of the main rod structure of the utility model;

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

[0016] Figure 4 It is a schematic diagram of the structure of the adjusting and fixing component of the utility model.

[0017] In the figure: 1. main rod; 2. grip groove; 3. round baffle; 4. square rod; 5. dumbbell plate; 6. square opening; 7. triangular indicator groove; 8. fixing hole; 9. adjustment fixing assembly; 10. positioning seat; 11. positioning frame; 12. positioning vertical rod; 13. movable sleeve; 14. positioning spring; 15. first connecting rod; 16. movable bar; 17. fixed rod; 18. second connecting rod; 19. connecting bar; 20. handle groove; 21. support frame. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with 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 of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] Embodiment 1, by Figure 1 , Figure 2 , Figure 3 and Figure 4 The utility model comprises a main rod 1, a grip groove 2 is provided on the outer side of the middle part of the main rod 1, circular baffles 3 are fixedly installed at both ends of the main rod 1, a square rod 4 is fixedly installed on the side of the circular baffle 3 away from the main rod 1, three dumbbell pieces 5 are movably installed on the outer side of the square rod 4, and the middle parts of the three dumbbell pieces 5 are penetrated with square openings 6 adapted to the square rod 4, the three dumbbell pieces 5 have the same thickness, and the diameters of the three dumbbell pieces 5 decrease successively, a triangular indicating groove 7 is provided on the top of one side of the three dumbbell pieces 5, and the pointed ends of the triangular indicating groove 7 face upwards, and a fixing hole 8 is provided in the middle part of the top of the three dumbbell pieces 5, an adjusting fixing assembly 9 is fixedly installed on the outer side of the main rod 1, and the adjusting fixing assembly 9 is connected to the dumbbell pieces 5 through the fixing hole 8, and a support frame 21 is symmetrically fixedly installed on the outer side of the main rod 1, and the support frame 21 is an L-shaped structure;

[0020] The adjustment and fixing assembly 9 includes a symmetrically arranged positioning seat 10, and the two positioning seats 10 are symmetrically fixedly installed on the outside of the main rod 1, and the tops of the two positioning seats 10 are fixedly installed with a positioning frame 11, and both sides of the positioning frame 11 are open structures, and the interior of the positioning frame 11 is fixedly installed with a positioning vertical rod 12, and a movable sleeve 13 is slidably installed on the outside of the bottom end of the positioning vertical rod 12, and the top of the movable sleeve 13 and the outer side of the positioning vertical rod 12 are sleeved with a positioning spring 14, and the top of the positioning spring 14 is fixedly connected to the inner top of the positioning frame 11, and the two movable sleeves 13 are fixedly installed on the side away from each other. There is a first connecting rod 15, and the first connecting rod 15 is an L-shaped structure. A movable bar 16 is fixedly installed on the top of the first connecting rod 15, and three fixed rods 17 are evenly fixedly installed on the bottom of the movable bar 16, and the lengths of the three fixed rods 17 increase and decrease in sequence with the diameters of the three dumbbell plates 5. The bottom of the fixed rod 17 extends to the inside of the fixing hole 8. A second connecting rod 18 is fixedly installed on the side where the two movable sleeves 13 are close to each other, and the second connecting rod 18 is an L-shaped structure. A connecting strip 19 is fixedly installed between the top ends of the two second connecting rods 18, and a handle groove 20 is opened on the outer side of the middle part of the connecting strip 19.

[0021] During use, through the interaction of the main rod 1, circular baffle 3, square rod 4, dumbbell plate 5, triangular indicator groove 7, fixing hole 8 and adjustment fixing assembly 9, the weight of the dumbbell with adjustable weight can be increased or decreased quickly during use, thereby achieving better practicality, and through the support frame 21, the dumbbell can be placed better during use, thereby ensuring the stability of the dumbbell when placed.

[0022] Working principle: When working, first hold the handle groove 20 to drive the connecting bar 19 to move upward, the connecting bar 19 drives the two second connecting rods 18 to move upward at the same time, the second connecting rod 18 drives the movable sleeve 13 to slide upward on the outside of the positioning vertical rod 12, the movable sleeve 13 moves upward to squeeze the positioning spring 14, so that the positioning spring 14 undergoes elastic deformation, and at the same time the movable sleeve 13 drives the first connecting rod 15 to move upward, the first connecting rod 15 drives the movable bar 16 to move upward, the movable bar 16 drives the fixed rod 17 to move upward, the fixed rod 17 moves upward and disengages from the fixing hole 8 The dumbbell pieces 5 are released from the outside of the square rod 4, and the dumbbell pieces 5 can be removed from the outside of the square rod 4. After the required weight is reached, the connecting strip 19 is released. Under the dual effects of gravity and the rebound force of the positioning spring 14, the movable sleeve 13 moves down and resets. The movable sleeve 13 drives the movable bar 16 to move down and reset through the first connecting rod 15. The movable bar 16 drives the fixed rod 17 to move down to fix the remaining dumbbell pieces 5. In this way, the dumbbell with adjustable weight can be quickly increased or decreased in weight during use, thereby achieving better practicality.

Claims

1. An adjustable dumbbell, comprising a main rod (1), characterized in that: A hand grip groove (2) is provided on the outer side of the middle of the main rod (1), circular baffles (3) are fixedly installed at both ends of the main rod (1), a square rod (4) is fixedly installed on the side of the circular baffle (3) away from the main rod (1), three dumbbell plates (5) are movably installed on the outer side of the square rod (4), and a square opening (6) matching the square rod (4) is penetrated through the middle of the three dumbbell plates (5), and the diameters of the three dumbbell plates (5) decrease in sequence, a triangular indicating groove (7) is provided on the top of one side of the three dumbbell plates (5), and the pointed end of the triangular indicating groove (7) faces upward, and a fixing hole (8) is provided in the middle of the top of the three dumbbell plates (5), and an adjusting fixing assembly (9) is fixedly installed on the outer side of the main rod (1), and the adjusting fixing assembly (9) is connected to the dumbbell plates (5) through the fixing hole (8).

2. An adjustable dumbbell according to claim 1, characterized in that: The adjusting and fixing assembly (9) comprises symmetrically arranged positioning seats (10), and the two positioning seats (10) are symmetrically fixedly installed on the outer side of the main rod (1), the tops of the two positioning seats (10) are fixedly installed with positioning frames (11), and both sides of the positioning frames (11) are open structures, the interior of the positioning frames (11) is fixedly installed with positioning vertical rods (12), the outer side of the bottom end of the positioning vertical rod (12) is slidably installed with movable sleeves (13), and the top of the movable sleeve (13) and the outer side of the positioning vertical rod (12) are sleeved with positioning springs (14), The top of the positioning spring (14) is fixedly connected to the inner top of the positioning frame (11); a first connecting rod (15) is fixedly installed on the sides of the two movable sleeves (13) away from each other, and the first connecting rod (15) is an L-shaped structure; a movable bar (16) is fixedly installed on the top of the first connecting rod (15); three fixed rods (17) are evenly fixedly installed on the bottom of the movable bar (16); and the lengths of the three fixed rods (17) increase or decrease in sequence with the diameters of the three dumbbell plates (5); and the bottoms of the fixed rods (17) extend to the inside of the fixing holes (8).

3. An adjustable dumbbell according to claim 2, characterized in that: A second connecting rod (18) is fixedly installed on the side where the two movable sleeves (13) are close to each other, and the second connecting rod (18) is an L-shaped structure. A connecting strip (19) is fixedly installed between the top ends of the two second connecting rods (18), and a handle groove (20) is opened on the outer side of the middle part of the connecting strip (19).

4. The adjustable dumbbell according to claim 1, characterized in that: A support frame (21) is symmetrically fixedly mounted on the outer side of the main rod (1), and the support frame (21) is an L-shaped structure.

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