Dumbbell weight adjusting device

Abstract

The utility model discloses a dumbbell weight adjusting device, which relates to the technical field of dumbbells and comprises a threaded pipe, threads are arranged in the threaded pipe, an anti-skidding rubber sleeve is arranged on the surface of the threaded pipe, two ends of the threaded pipe are in threaded connection with threaded rods, one end of each threaded rod is fixedly connected with a screwing gripper, and the other end of each threaded rod is fixedly connected with a handle. The two ends of the threaded pipe are fixedly connected with weight stacks, the weight stacks are hexagonal, and the surfaces of the weight stacks are provided with tablet adding grooves which are in a convex shape. According to the dumbbell weight adjusting device, a rotating clamping block is not blocked, then a weighting piece can be clamped by a screwing gripper, one face of the rotating clamping block is blocked by a screwing clamping groove when the screwing gripper clamps the weighting piece, then the screwing gripper can be blocked and prevented from rotating, and therefore the dumbbell cannot fall off or shake in the body building process; the weighting piece can be better clamped and fixed, and the situation that the weighting piece falls off to hurt a user due to the fact that the screwing tongs are loosened is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dumbbells, in particular to a dumbbell weight adjusting device. Background Art

[0002] Dumbbells are an auxiliary equipment for weightlifting and fitness exercises, used to enhance muscle strength training. Because of their bell-shaped structure and silent practice, they are named dumbbells. Dumbbells are made of wood and iron. Wooden dumbbells are mainly used for dumbbell exercises, while iron dumbbells are mainly used for bodybuilding and upper limb strength exercises.

[0003] During the use of dumbbells, the weight required for exercise with dumbbells varies due to different training objectives, target muscle groups, and movements. Therefore, the weight of the dumbbells needs to be adjusted. However, during the existing dumbbell adjustment process, the weight plates may rotate or become loose, and the weight plates may fall off during exercise and fitness, causing injury to the user. Therefore, this solution proposes a dumbbell weight adjustment device to solve the above problem. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a dumbbell weight adjustment device that can solve the problems of the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a dumbbell weight adjustment device comprises a threaded tube, the interior of the threaded tube is provided with a threaded tube, the surface of the threaded tube is provided with an anti-slip rubber sleeve, both ends of the threaded tube are threadedly connected to a threaded rod, one end of the threaded rod is fixedly connected to a tightening gripper, and the two ends of the threaded tube are fixedly connected to a counterweight plate, the counterweight plate is hexagonal, the surface of the counterweight plate is provided with a sheet-adding groove, the sheet-adding groove is convex, the surface of the counterweight plate is provided with a ball groove, the surface of the counterweight plate is provided with a sliding groove, the sliding groove and the ball groove are connected to each other, a weighting plate is provided on one side of the counterweight plate, the weighting plate is also hexagonal, a circular hole is provided in the center of the weighting plate, the weighting plate is slidably connected to the surface of the threaded rod, a clamping protrusion is fixedly connected to the surface of the weighting plate, the clamping protrusion is convex, the clamping protrusion coincides with the sheet-adding groove, and the tightening gripper is squeezed and connected to the weighting plate.

[0006] Preferably, a tightening slot is provided on the surface of the weighted plate, and the tightening slot is triangular in shape.

[0007] Preferably, a circular hole is provided at a position of the tightening grip near the tightening slot, a linkage rod is slidably connected to the circular hole of the tightening grip, and one end of the linkage rod is fixedly connected to a disassembly handle.

[0008] Preferably, one end of the linkage rod away from the disassembly handle is fixedly connected to a rotating block, the rotating block is triangular in shape, and the rotating block is consistent with the tightening slot.

[0009] Preferably, a clamping spring is fixedly connected inside the circular hole of the tightening grip.

[0010] Preferably, a spring stopper is fixedly connected to the surface of the linkage rod, and the other end of the clamping spring is fixedly connected to the surface of the spring stopper.

[0011] Preferably, a circular groove is provided on the surface of the weighting plate, and a top ball spring is fixedly connected in the circular groove of the weighting plate.

[0012] Preferably, the other end of the top ball spring is fixedly connected to a top ball, and the top ball is slidably connected to the sliding groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) The dumbbell weight adjustment device, when the tightening grip contacts the weight plate, the slope of the rotating block contacts the slope of the tightening slot, without blocking the rotating block, thereby enabling the tightening grip to clamp the weight plate. When the tightening grip is clamped, the tightening slot blocks one side of the rotating block, thereby blocking the tightening grip to prevent it from rotating. Therefore, the dumbbell will not fall off or shake during fitness, and the weight plate can be better clamped and fixed, avoiding the tightening grip from loosening and causing the weight plate to fall off and cause harm to the user.

[0015] (2) In the dumbbell weight adjustment device, when the top ball moves along the sliding groove, it enters the interior of the weight plate and squeezes the top ball spring. The top ball spring is squeezed and deformed to shrink. When the top ball moves to the position of the ball groove, the top ball spring loses its squeezing force and pushes the top ball to engage with the ball groove, preventing the weight plate from falling off when the grip is tightened and the weight plate is not clamped, causing injury to the user or inconvenience in installation.

[0016] (3) The dumbbell weight adjustment device is configured such that when adding weight plates, the engaging protrusion is inserted into the plate adding slot to complete the engaging. When adding a specified weight, the threaded rod is passed through the hollow of the weight plate and into the threaded tube. The grip is rotated and tightened to squeeze and tighten the weight plate. This prevents the weight plate from rotating and affecting the fitness experience when exercising with the dumbbells. The weight plate and the weight plate are both hexagonal, which can prevent the dumbbell from rolling when it is put down and causing damage to nearby objects or people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a structural diagram of a dumbbell weight adjustment device of the utility model;

[0019] Figure 2This is a cross-sectional view of the structure of a dumbbell weight adjustment device of the utility model;

[0020] Figure 3 This is a schematic diagram of a dumbbell weight adjustment device of the present utility model;

[0021] Figure 4 This is a cross-sectional view of a dumbbell weight adjustment device according to the present invention;

[0022] Figure 5 For this utility model Figure 2 Enlarged view of point A in the middle;

[0023] Figure 6 For this utility model Figure 4 Enlarged view of point B in the middle;

[0024] Figure 7 This is a schematic diagram of the structure of the weight plate of the utility model.

[0025] Figure numerals: 1. threaded tube; 2. weighting plate; 3. plate adding groove; 4. sliding groove; 5. ball bearing groove; 6. tightening grip; 7. tightening slot; 8. threaded rod; 9. disassembly handle; 10. counterweight plate; 11. linkage rod; 12. snap spring; 13. spring stopper; 14. rotating block; 15. anti-slip rubber sleeve; 16. snap protrusion; 17. top ball spring; 18. top ball. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0027] See also Figure 1-7 The utility model provides a technical solution: a dumbbell weight adjustment device, comprising a threaded tube 1, the interior of the threaded tube 1 is provided with a thread, the surface of the threaded tube 1 is provided with an anti-slip rubber sleeve 15, both ends of the threaded tube 1 are threadedly connected to a threaded rod 8, one end of the threaded rod 8 is fixedly connected to a tightening grip 6, and both ends of the threaded tube 1 are fixedly connected to a counterweight plate 10, the counterweight plate 10 is hexagonal, and the surface of the counterweight plate 10 is provided with a plate adding groove 3, the plate adding groove 3 is convex, and the counterweight plate 10 is fixedly connected to the weight plate 10. A ball groove 5 is provided on the surface, a sliding groove 4 is provided on the surface of the counterweight plate 10, the sliding groove 4 and the ball groove 5 are connected to each other, a weighting plate 2 is provided on one side of the counterweight plate 10, the weighting plate 2 is also hexagonal, and a circular hole is provided at the center of the weighting plate 2, the weighting plate 2 is slidably connected to the surface of the threaded rod 8, and a snap-on protrusion 16 is fixedly connected to the surface of the weighting plate 2, the snap-on protrusion 16 is convex, and the snap-on protrusion 16 coincides with the plate groove 3, and the gripper 6 is tightened to be squeezed and connected to the weighting plate 2.

[0028] When the dumbbells are needed, the weight plates 2 can be added as needed. When adding the weight plates 2, the snap-fitting protrusions 16 are inserted into the adding plate slots 3 to complete the snap-fitting. When adding to the specified weight, the threaded rod 8 is passed through the hollow of the weight plate 2 into the interior of the threaded tube 1, and the gripper 6 is rotated and tightened to squeeze and tighten the weight plate 10. This can prevent the weight plate 2 from rotating and affecting the fitness experience when exercising with the dumbbells. The weight plate 2 and the weight plate 10 are both hexagonal, which can prevent the dumbbells from rolling when they are put down and causing damage to nearby objects or people.

[0029] A tightening slot 7 is provided on the surface of the weighting plate 2, and the tightening slot 7 is triangular. A circular hole is provided near the tightening slot 7 of the tightening grip 6, and a linkage rod 11 is slidably connected to the circular hole of the tightening grip 6. One end of the linkage rod 11 is fixedly connected to the disassembly handle 9, and the end of the linkage rod 11 away from the disassembly handle 9 is fixedly connected to a rotating block 14, which is triangular in shape and coincides with the tightening slot 7. A clamping spring 12 is fixedly connected to the inside of the circular hole of the tightening grip 6, and a spring blocking piece 13 is fixedly connected to the surface of the linkage rod 11, and the other end of the clamping spring 12 is fixedly connected to the surface of the spring blocking piece 13.

[0030] When it is necessary to remove the tightening grip 6 to increase or decrease the weight, the disassembly handle 9 is pulled out to drive the linkage rod 11 to slide on the tightening grip 6. When the linkage rod 11 moves, it drives the spring block 13 to slide inside the circular hole of the tightening grip 6. When the spring block 13 slides inside the tightening grip 6, it generates an extrusion force on the clamping spring 12 to cause it to deform and shrink. At the same time, the linkage rod 11 drives the rotating clamping block 14 to disengage it from the inside of the tightening slot 7, and then the tightening grip 6 can be rotated to make the threaded rod 8 rotate inside the threaded tube 1 and removed. After increasing the weight and decreasing the weight, the threaded rod 8 is inserted into the inside of the threaded tube 1, and then rotated to tighten. The gripper 6 drives the threaded rod 8 to be tightened, thereby clamping the weight plate 2. When the tightening gripper 6 contacts the weight plate 2, the slope of the rotating block 14 contacts the slope of the tightening slot 7, and does not block the rotating block 14, thereby enabling the tightening gripper 6 to clamp the weight plate 2. When the tightening gripper 6 is clamped, the tightening slot 7 blocks one side of the rotating block 14, thereby blocking the tightening gripper 6 from rotating. Therefore, the dumbbell will not fall off or shake during fitness, and the weight plate 2 can be better clamped and fixed, avoiding the loosening of the tightening gripper 6 and causing the weight plate 2 to fall off and cause injury to the user.

[0031] A circular groove is provided on the surface of the weighting piece 2 , a top ball spring 17 is fixedly connected in the circular groove of the weighting piece 2 , a top ball 18 is fixedly connected to the other end of the top ball spring 17 , and the top ball 18 is slidably connected to the sliding groove 4 .

[0032] When the weight plate 2 is added to one side of the counterweight plate 10, the top ball 18 moves along the sliding groove 4. When the top ball 18 moves along the sliding groove 4, it will enter the interior of the weight plate 2 and squeeze the top ball spring 17. The top ball spring 17 is squeezed and deformed to shrink. When the top ball 18 moves to the position of the ball groove 5, the top ball spring 17 loses the squeezing force and pushes the top ball 18 to engage with the ball groove 5, preventing the weight plate 2 from falling off when the grip 6 is tightened and the weight plate 2 is not clamped, causing injury to the user or inconvenience in installation.

[0033] Working principle:

[0034] When dumbbells are needed, weight plates 2 can be added as needed. When adding weight plates 2, the snap-fitting protrusions 16 are inserted into the adding plate slots 3 to complete the snap-fitting. When adding to the specified weight, the threaded rod 8 is passed through the hollow of the weight plate 2 into the interior of the threaded tube 1, and the gripper 6 is rotated and tightened to squeeze and tighten the weight plate 10, thereby preventing the weight plate 2 from rotating and affecting the fitness experience when exercising with dumbbells.

[0035] When it is necessary to remove the tightening grip 6 to increase or decrease the weight, the disassembly handle 9 is pulled out to drive the linkage rod 11 to slide on the tightening grip 6. When the linkage rod 11 moves, it drives the spring stopper 13 to slide inside the circular hole of the tightening grip 6. When the spring stopper 13 slides inside the tightening grip 6, it generates an extrusion force on the clamping spring 12 to cause it to deform and shrink. At the same time, the linkage rod 11 drives the rotating block 14 to disengage it from the inside of the tightening slot 7, and then the tightening grip 6 can be rotated to make the threaded rod 8 rotate inside the threaded tube 1 and removed. After increasing the weight and decreasing the weight, the threaded rod 8 is inserted Insert it into the interior of the threaded tube 1, then rotate the tightening grip 6 to drive the threaded rod 8 to tighten it, so that the weight plate 2 can be clamped. When the tightening grip 6 contacts the weight plate 2, the slope of the rotating block 14 contacts the slope of the tightening slot 7, and does not block the rotating block 14, so that the tightening grip 6 can clamp the weight plate 2. When the tightening grip 6 is clamped, the tightening slot 7 blocks one side of the rotating block 14, so that the tightening grip 6 can be blocked to prevent it from rotating. Therefore, the dumbbell will not fall off or shake during fitness, and the weight plate 2 can be better clamped and fixed.

[0036] When the weight plate 2 is added to one side of the counterweight plate 10, the top ball 18 moves along the sliding groove 4. When the top ball 18 moves along the sliding groove 4, it will enter the interior of the weight plate 2 and squeeze the top ball spring 17. The top ball spring 17 is squeezed and deformed to shrink. When the top ball 18 moves to the position of the ball groove 5, the top ball spring 17 loses the squeezing force and pushes the top ball 18 to engage with the ball groove 5, preventing the weight plate 2 from falling off when the grip 6 is tightened and the weight plate 2 is not clamped.

[0037] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A dumbbell weight adjustment device, comprising a threaded tube (1), characterized in that: The threaded tube (1) is provided with a threaded interior, and a non-slip rubber sleeve (15) is provided on the surface of the threaded tube (1). Both ends of the threaded tube (1) are threadedly connected to a threaded rod (8), and one end of the threaded rod (8) is fixedly connected to a tightening grip (6). Both ends of the threaded tube (1) are fixedly connected to a counterweight plate (10), and the counterweight plate (10) is hexagonal. A plate adding groove (3) is provided on the surface of the counterweight plate (10), and the plate adding groove (3) is convex. A ball groove (5) is provided on the surface of the counterweight plate (10). The counterweight plate (10) A sliding groove (4) is provided on the surface of the weight plate (10), and the sliding groove (4) and the ball groove (5) are communicated with each other. A weight plate (2) is provided on one side of the weight plate (10), and the weight plate (2) is also hexagonal. A round hole is provided at the center of the weight plate (2). The weight plate (2) is slidably connected to the surface of the threaded rod (8). A clamping protrusion (16) is fixedly connected to the surface of the weight plate (2), and the clamping protrusion (16) is convex. The clamping protrusion (16) is consistent with the plate groove (3). The gripper (6) is tightened to squeeze and connect with the weight plate (2).

2. A dumbbell weight adjustment device according to claim 1, characterized in that: A tightening slot (7) is provided on the surface of the weighted piece (2), and the tightening slot (7) is triangular in shape.

3. A dumbbell weight adjustment device according to claim 2, characterized in that: The tightening grip (6) is provided with a circular hole near the tightening slot (7); a linkage rod (11) is slidably connected to the circular hole of the tightening grip (6); and a disassembly handle (9) is fixedly connected to one end of the linkage rod (11).

4. A dumbbell weight adjustment device according to claim 3, characterized in that: One end of the linkage rod (11) away from the disassembly handle (9) is fixedly connected to a rotating block (14), the rotating block (14) is triangular, and the rotating block (14) is consistent with the tightening groove (7).

5. A dumbbell weight adjustment device according to claim 4, characterized in that: A clamping spring (12) is fixedly connected inside the circular hole of the tightening grip (6).

6. A dumbbell weight adjustment device according to claim 5, characterized in that: A spring stopper (13) is fixedly connected to the surface of the linkage rod (11), and the other end of the clamping spring (12) is fixedly connected to the surface of the spring stopper (13).

7. The dumbbell weight adjustment device according to claim 1, characterized in that: A circular groove is provided on the surface of the weighted plate (2), and a top ball spring (17) is fixedly connected in the circular groove of the weighted plate (2).

8. The dumbbell weight adjustment device according to claim 7, characterized in that: The other end of the top ball spring (17) is fixedly connected with a top ball (18), and the top ball (18) is slidably connected to the sliding groove (4).

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