Multifunctional dumbbell with adjustable weight

Abstract

The invention discloses a multifunctional dumbbell with adjustable weight, which comprises a dumbbell body, a weight plate and a base. The dumbbell body comprises a middle handle, both sides of the middle handle are connected with weight plate seats, three side handles are connected between the plate seats, the outer side surface of the plate seat is provided with a fan-shaped groove to form a handle, a plurality of weight plates are arranged in the plate seat, the weight plates are located in the first card slots on both sides of the plate seat, and the center of the plates is sleeved on the central axis of the plate seat, a weight adjustment device is arranged on the central axis of the plate seat, the weight adjustment device is located in the groove in the middle of the plates, a button is arranged on the upper part of the weight adjustment device, and locking tongue blocks are arranged on both sides, the locking tongue blocks are located in the inner side wall groove of the groove, and the button and the locking tongue blocks are respectively located at the through holes on the upper part and the two sides of the weight adjustment device. The invention has the advantages of novel multifunctional use structure, convenient and fast arbitrary increase and decrease of exercise weight and multiple selectivity of center of gravity moment in exercise.

Description

Technical Field

[0001] The invention belongs to the field of fitness equipment, and in particular relates to a multifunctional dumbbell with adjustable weight. Background Art

[0002] Dumbbells are the most common auxiliary equipment for exercise and fitness. They are simple in structure and easy to use. They can be used for rehabilitation, muscle building and strength training. In order to adapt to the needs of different weights and projects, users need to buy a lot of dumbbells, barbells, kettlebells, fitness balls and other equipment of different weights and specifications, which not only takes up a large space for storage, but also causes great waste of economy and resources. In the process of using and exercising, the existing adjustable weight dumbbells increase or decrease the weight by putting bells of different weights on both ends of the dumbbell handle, but it requires a cumbersome disassembly and installation process, which is not convenient for rapid weight change, and the weight of the dumbbell in use needs to be calculated manually, which is not convenient for use; and the existing dumbbells have only a single middle handle, which can only be used with one hand and have a single function; at the same time, the torque of the user to overcome the weight of the dumbbell cannot be changed, resulting in a single and boring training project. At the same time, when exercising with a single hand holding the dumbbell, there are safety hazards of spraining the wrist and slipping out of the hand. Summary of the invention

[0003] The purpose of the present invention is to overcome the above limitations and provide a multifunctional dumbbell with adjustable weight that can adjust the dumbbell weight quickly and conveniently through a special multi-handle structure and a button structure, without the need for manual weight calculation, and is simple to operate and easy to use.

[0004] The objective of the present invention is achieved through the following technical scheme: a multifunctional dumbbell with adjustable weight, comprising a middle handle, both sides of the middle handle are connected to a weight plate seat for increasing or decreasing weight, three side handles are also connected between the weight plate seats, the three side handles are evenly arranged on the outside of the middle handle, a handle is provided on the outside of the weight plate seat, a plurality of weighted bell plates are arranged in the weight plate seat, both sides of the weighted bell plates are located in first slots on both sides of the bell plate seat, and the center of the weighted bell plates is sleeved on the central axis of the bell plate seat, a weight adjustment device is provided on the central axis of the bell plate seat, the weight adjustment device is located in a groove in the middle of the bell plate, a button is provided on the upper part of the weight adjustment device, a locking tongue block is provided on the side part, the locking tongue block is located in the inner side wall groove of the groove, the button and the locking tongue block are respectively located at the through holes on the upper part and the side part of the weight adjustment device, and the weighted bell plates are placed in the second slot and the third slot of the base.

[0005] Preferably, the button is connected to a push-and-turn cam with a serrated opening at the tail, the rotating cam cooperates with the push-and-turn cam and the height adjustment stop groove on the outer sleeve portion, the sleeve portion is provided with a through hole portion and a limit slot, the rotating cam is connected to a conical boss rod, the conical boss rod is placed between two lock tongue blocks, and a conical groove is provided on the side of the lock tongue block facing the conical boss rod, a second spring is provided at the lower end of the conical boss rod, and a first spring is connected below the lock tongue block.

[0006] Preferably, the bottom end of the push-rotating cam has a serrated first inclined surface and a first convex surface, the middle part of the rotating cam is provided with a serrated second inclined surface and a second convex surface, and the height adjustment stop groove provided in the sleeve part cooperates with the first convex surface and the second convex surface to slide.

[0007] Preferably, a fan-shaped groove is provided on the baffle plate at the outer edge of the bell plate seat to form an exercise handle.

[0008] Preferably, a display screen is provided on the outer baffle of the weight plate holder for displaying the number of buttons pressed and the total weight of the dumbbells in use, the time, speed, number of exercises and the energy consumption values ​​calculated.

[0009] Preferably, a safety lock is provided on the top of the weight adjustment device, and the safety lock is located on one side of the button.

[0010] In summary, the present invention has the following advantages: 1. The training weight of the dumbbell weight can be quickly adjusted through the button structure, and the display screen can intuitively reflect the weight, without manual weight calculation, simple operation and easy to use, one product can meet different training weight requirements, reducing the storage space of equipment and avoiding economic and resource waste; 2. When the middle handle is grasped by one hand for exercise, when the wrist is bent to about ten degrees, the side handle will contact the inner or outer side of the arm to prevent further bending of the wrist and prevent wrist sprain; 3. When any side handle is grasped by one hand, the other two adjacent side handles will also contact the inner or outer side of the arm for support, thereby avoiding wrist sprain; 4. Both hands can be used. Grab any two side handles for exercise, which reduces the potential safety hazard of the dumbbell slipping out of your hand and injuring someone. At the same time, you can also switch between one hand and the other hand quickly and continuously during exercise; 5. A hand grip is added at each end of the weight plate holder, so that there are six handles on the dumbbell, which greatly increases the ways for users to hold the dumbbell, and users have more choices for the torque to overcome the weight of the dumbbell; 6. When the middle handle is grasped with one hand, the product has the exercise effect of a dumbbell; when any of the middle side handles is grasped with one hand, the product has the exercise effect of a kettlebell ball; when both hands grasp the handles on the outer baffles on both sides, the product has the function of a barbell, which can diversify the training and there is no need to repeatedly change the exercise equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the present invention;

[0012] Figure 2 It is a structural diagram of the present invention when it is unloaded;

[0013] Figure 3 A structural diagram of the present invention when used;

[0014] Figure 4 It is a structural diagram of the base of the present invention;

[0015] Figure 5 This is a structural diagram of the weighted bell plate of the present invention being located on a base;

[0016] Figure 6 is a schematic diagram of the interior of the weight adjustment device of the present invention;

[0017] Figure 7 is a schematic diagram of the interior of the sleeve portion of the present invention;

[0018] Figure 8 It is a structural diagram of a single weighted bell piece of the present invention;

[0019] Fig. 9 , Fig.10 It is a structural diagram of other embodiments of the present invention with different shapes;

[0020] Numbers in the figure: 1-middle handle, 2-bell plate seat, 3-side handle, 4-handle, 5-weight bell plate, 6-first slot, 7-weight adjustment device, 8-groove, 9-button, 10-lock tongue block, 11-inner wall slot, 12-second slot, 13-third slot, 14-push cam, 15-rotating cam, 16-conical boss rod, 17-first spring, 18-second spring, 19-sleeve part, 20-height adjustment stop groove, 21-limiting slot, 22-through hole part, 23-conical groove, 24-first inclined surface, 25-first protruding surface, 26-second inclined surface, 27-second protruding surface, 28-third inclined surface, 29-fan-shaped groove, 30-display screen, 31-safety lock. DETAILED DESCRIPTION

[0021] 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.

[0022] Example 1: Figure 1 , 4As shown in Figures 8 and 9, the present invention provides a multifunctional dumbbell with adjustable weight, comprising a middle handle 1, both sides of which are connected to weight plate seats 2, and three side handles 3 are connected between the weight plate seats 2. The three side handles 3 are evenly arranged on the outside of the middle handle 1, and the center points of the same horizontal section of the three side handles 3 are connected to form an equilateral triangle. When the middle handle 1 is grasped by one hand for exercise, when the wrist is bent to about ten degrees, the side handle 3 will contact the inner side or outer side of the arm to block further bending of the wrist, thereby preventing wrist sprain; when any side handle 3 is grasped by one hand, the other two adjacent side handles 3 will also contact the inner side or outer side of the arm for support, thereby avoiding wrist sprain; any two side handles 3 can be grasped by both hands for exercise, so that rapid and continuous switching between one hand and two hands can be achieved during exercise, thereby achieving multiple exercise purposes. ; Be provided with a plurality of counterweight bell pieces 5 in the bell piece seat 2, counterweight bell piece 5 both sides are positioned in the first draw-in slot 6 on both sides of the bell piece seat 2, and the center of the counterweight bell piece 5 is sleeved on the central axis of the bell piece seat 2, the central axis of the bell piece seat 2 is provided with a weight adjusting device 7, the weight adjusting device 7 is positioned in the groove 8 in the middle part of the counterweight bell piece 5, the weight adjusting device 7 top is provided with a button 9, the side is provided with a lock tongue block 10, the lock tongue block 10 is positioned in the inner side wall groove 11 of the groove 8, the button 9 and the lock tongue block 10 are respectively positioned at the through hole at the top and the side of the weight adjusting device 7, the lock tongue block 10 can be stretched out and hooked on the inner side wall groove 11 by pressing the button 9, so that the counterweight bell piece 5 is selected, and the lock tongue block 10 can be rebounded by pressing the button 9 again, and the corresponding selected counterweight bell piece 5 is cancelled, and the counterweight bell piece 5 is placed in the second draw-in slot 12 and the 3rd draw-in slot 13 of the base.

[0023] Embodiment 2 discloses a method in which the button 9 and the lock tongue block 10 cooperate to move: Figure 6 , 7 As shown, the button 9 is mounted on the push-and-rotate cam 14. The end of the push-and-rotate cam 14 is provided with a sawtooth-shaped first inclined surface 24 and a first protruding surface 25. The sawtooth-shaped first inclined surface 24 cooperates with the second inclined surface 26 on the rotating cam 15 below. The first protruding surface 25 on the push-and-rotate cam 14 and the second protruding surface 27 on the rotating cam 15 cooperate with the height adjustment stop groove 20 and the third inclined surface 28 on the sleeve portion 19. The height adjustment stop groove 20 includes a shallow groove and a deep groove. While the rotating cam 15 is moved up and down, the rotating cam 15 can rotate in sequence between high and low positions during rotation. A conical boss rod 16 is connected below the rotating cam 15. The conical boss rod 16 is arranged between two locking tongue blocks 10, and a conical groove 23 is provided on the side of the locking tongue block 10 facing the conical boss rod 16. A second spring 18 is provided on the top of the conical boss rod 16, and a first spring 17 is connected below the locking tongue block 10. As shown Figure 5 As shown, before use, the dumbbell body and the weight plate 5 are placed on the base. Figure 6 , 7As shown, according to the required weight, the button 9 of the corresponding counterweight bell piece 5 is pressed, the sleeve portion 19 is in a fixed position, and the top of the push-rotating cam 14 extends out of the through-hole portion 22. At this time, the button 9 moves downward, pushing the push-rotating cam 14, the rotating cam 15, and the conical boss rod 16 to move downward together. The protruding conical surface of the conical boss rod 16 will push the locking tongue blocks 10 on both sides to move outward respectively, and the limiting groove 21 limits the rotation of the conical boss rod 16, thereby clamping the inner side wall groove 11 on the counterweight bell piece 5. At this time, the second protruding surface 27 on the rotating cam 15 is placed in the shallow groove in the sleeve portion 19, preventing the entire connecting rod from rising. When the button 9 is pressed again, the chamfered surface at the top of the second protruding surface 27 on the rotating cam 15 cooperates with the third inclined surface 28 on the sleeve portion 19 to push the rotating cam 15 to rotate and displace, so that the second protruding surface 27 on the rotating cam 15 is placed in the deep groove in the sleeve portion 19, and the entire connecting rod moves upward under the push of the second spring 18, the conical boss rod 16 is reset, and the locking tongue block 10 is also reset under the action of the first spring 17, and the stuck counterweight 5 is released, thereby achieving the function of reducing the counterweight 5.

[0024] like Figure 1 As shown, a fan-shaped groove 29 is provided on the baffle plate on the outer edge of the weight plate seat 2 to form a hand grip 4 on one side, so that a hand grip is added to the sides of the weight plate seat 2 on both sides. In this way, there are six handles on this dumbbell, which greatly increases the ways in which the user can hold the dumbbell, and the torque of the user to overcome the weight of the dumbbell is also greatly increased. The hand grip 4 is specially designed with a symmetrical arc and plane combination according to ergonomics, and is comfortable to hold.

[0025] like Figure 1 , 2 As shown, through the setting of the internal circuit and sensor of the weight adjustment device 7, a corresponding display screen 30 is provided on the outer baffle of the weight plate holder 2, which can display the number of buttons 9 pressed and the calculated total weight of the dumbbells, the time, speed, number of exercises and the energy consumption value, so that the user can intuitively perceive his or her own exercise situation.

[0026] like Figure 3 As shown, a safety lock 31 is provided on the top of the weight adjustment device 7, and the safety lock 31 is located on one side of the button 9 to prevent the weight plate 5 from slipping and causing injury due to accidental touching of the button 9 when using the dumbbell.

[0027] Example 3: Fig. 9 , Fig.10 As shown, the weight plate 5 can also be made into other shapes such as square, and the handles can be set to one or five to increase the diversity of the product.

Claims

1. A multifunctional dumbbell with adjustable weight, characterized in that: The invention comprises a middle handle (1), both sides of which are connected to a weight plate seat (2) for increasing or decreasing weight, three side handles (3) are further connected between the weight plate seats (2), and the three side handles (3) are evenly arranged on the outside of the middle handle (1), a fan-shaped groove (29) is provided on the outer baffle plate of the weight plate seat (2) to form a side handle (4), a plurality of weighted weight plates (5) are arranged in the weight plate seat (2), both sides of the weighted weight plates (5) are located in the first slots (6) on both sides of the weight plate seat (2), and the center of the weighted weight plates (5) is sleeved on the central axis of the weight plate seat (2), and a weight adjustment device is provided on the central axis of the weight plate seat (2). The weight adjustment device (7) is located in a groove (8) in the middle of a bell plate (5), a button (9) is provided on the upper part of the weight adjustment device (7), and a locking tongue block (10) is provided on the side part, the locking tongue block (10) is located in an inner side wall groove (11) of the groove (8), the button (9) and the locking tongue block (10) are respectively located at through holes on the upper part and the side part of the weight adjustment device (7), the weighted bell plate (5) is placed in a second groove (12) and a third groove (13) of a base, the button (9) is connected to a push-rotate cam (14) with a sawtooth opening at the tail, and a rotating cam (15) is connected to the push-rotate cam (14) and an adjusting height stop groove (20) on an outer sleeve portion (19); the sleeve portion (19) is provided with a through hole portion (22) and a limit groove (21); the rotating cam (15) is connected to a conical boss rod (16); the conical boss rod (16) is placed between two locking tongue blocks (10); a conical groove (23) is provided on the side of the locking tongue block (10) facing the conical boss rod (16); a second spring (18) is provided at the lower end of the conical boss rod (16); a first spring (17) is connected below the locking tongue block (10); a sawtooth first inclined surface (24) and a first inclined surface (23) are provided at the bottom end of the pushing cam (14); A convex surface (25), a sawtooth-shaped second inclined surface (26) and a second convex surface (27) are provided in the middle of the rotating cam (15), a height adjustment stop groove (20) arranged in the sleeve portion (19) cooperates and slides with the first convex surface (25) and the second convex surface (27), a display screen (30) is provided on the baffle plate of the outer edge of the dumbbell seat (2) for displaying the number of buttons (9) pressed and displaying the total weight of the dumbbell in use, the time, speed, number of times of exercise and the energy consumption value calculated, and a safety lock (31) is provided on the top of the weight adjustment device (7), and the safety lock (31) is located on one side of the button (9).

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