Adjustable weight kettlebell

Abstract

A weight-adjustable kettlebell, comprising: a shell; a handle (1); a plurality of weight plates (3); and a base (7). The shell comprises an inner shell (17), an outer shell (2), and a weight support frame (20). The weight support frame (20) is fixed to the inner shell (17) and the outer shell (2), and the weight support frame (20) is provided with hanging members (21) corresponding to the weight plates (3). The weight plates (3) are sequentially positioned and stacked, the weight plates (3) are provided with arc-shaped engagement ridges (11) corresponding to the hanging members (21), and the arc-shaped engagement ridges (11) are sequentially arranged, from top to bottom, from the longest to the shortest to form weight adjustment levels. A center positioning seat (5) is arranged on the base (7), a turnplate (6) is arranged between the base (7) and the center positioning seat (5), the weight plates (3) are positioned and placed on the center positioning seat (5), and the shell is positioned and placed on the turnplate (6) and covers the weight plates (3). When the handle (1) drives the shell to rotate, the hanging members (21) slide into positions under the corresponding arc-shaped engagement ridges (11) to achieve weight adjustment. The kettlebell using the above structure has advantages such as a reasonable structural design, a small fitting gap, good stability, being easy and convenient to adjust by rotating, and being safe to use.

Description

1 / 14 “Adjustable Weight Kettlebell” FIELD OF THE INVENTION

[0001] The present invention relates to the technical field of sports and fitness equipment, especially an adjustable weight kettlebell whose weight can be adjusted by rotating the handle. BACKGROUND OF THE INVENTION

[0002] The kettlebell is a fitness equipment commonly used in strength training combinations. By training the overall two-handed grip for swinging, it can train more muscle groups and promote the healthy and coordinated development of all parts of the body. Conventional kettlebells have an unchanging weight and are constructed in a single piece. A set of kettlebells of varying weights is necessary to accommodate various training requirements and intensities. While families rarely buy a complete set, gyms are more suited to purchasing such a set.

[0003] To overcome the problem of the fixed and non-adjustable weight of transmission kettlebells and the acquisition of a complete set, China Patent Bulletin No. CN217246498U discloses an adjustable weight kettlebell. The structure can be used to obtain different weights of kettlebells simply by adjusting the number of internal counterweights by inserting pins in different positions, where a kettlebell can replace the traditional kettlebell set, making it more economical and convenient for fitness centers and family use, occupying little space, a good solution to the problems of existing traditional kettlebells.However, the structure also presents the following deficiencies in the process of use: (1) each counterweight block needs to be installed on the limit components and the pins with the use of the counterweight block structure are very complex, production and installation are inconvenient and there are also defects of failure of the limit component; (2) as the counterweight is not placed on a lower base, it is easy to lose it during the counterweight adjustment process, making it impossible to place it. Petition 870250060702, dated 07 / 15 / 2025, page 10 / 55 2 / 14 organized form; (3) there is a large space between the counterweight blocks, which produces a mechanical collision sound during training; there is room for further improvements. SUMMARY OF THE INVENTION

[0004] To overcome the problems existing above in the aforementioned technique, the objective of the present invention is to provide an adjustable weight kettlebell with reasonable structural design, simple and convenient rotation and adjustment of the counterweight, safe and reliable use, small adjustment clearance and good stability.

[0005] The technical solution adopted by the present invention to solve the aforementioned technical problems comprises a body, a handle fixed to the body, multiple counterweight bars and a lower base. Said body includes an inner body and an outer body, a counterweight support structure, the counterweight support structure is fixedly connected to the inner and outer bodies, and the counterweight support structure has a suspended component corresponding to the counterweight bar; said counterweight bars are positioned and stacked in order of arrangement, wherein the counterweight bars have curved suspension locks corresponding to the suspended components, and the curved suspension locks on the counterweight bars are adjusted from top to bottom, in order from largest to smallest, and form the counterweight adjustment locks;The aforementioned base has a central positioning base, in which a rotation disc is provided between the lower base and the central positioning base; the counterweight bar is positioned on the central positioning base, the body is positioned on the rotation disc and covers the counterweight bar; when the handle triggers the body to rotate, the component suspended in the counterweight support structure slides onto the corresponding counterweight bar under the curved suspension lock to ensure the counterweight adjustment.

[0006] In a further embodiment of the present invention, said body has a rotation locking device for the bar. Petition 870250060702, dated 07 / 15 / 2025, page 11 / 55 3 / 14 counterweight, said rotation locking device comprises a guide plate that slides over the body, a counterweight bar locking block fixedly connected to the upper part of the guide plate, a locking block spring that applies elasticity to the counterweight bar locking block; the higher counterweight bar has an anti-rotation positioning groove in conjunction with the counterweight bar locking block, the number of anti-rotation positioning grooves being equal to the number of counterweight adjustment locks; when the body is placed on the rotation disc, the guide plate rests on top of the rotation disc and the counterweight bar locking block, under the action of the guide plate, causes the counterweight bar locking block and the corresponding anti-rotation positioning groove to be separated and unlocked, and the body is able to rotate relative to the counterweight bar to adjust the counterweight;When the handle is raised, the guide plate is separated from the rotation disc and the locking block, under the action of the locking block spring, causes the counterweight bar locking block to be combined and locked with the corresponding anti-rotation positioning groove, and causes the counterweight bar not to be rotated relative to the body.

[0007] In a further embodiment of the present invention, said rotating disc is fixed with a lower cover, and a rotating disc locking position locking device is provided between the rotating disc and the lower cover; said rotating disc locking position locking device has a locking position locking bar, a locking bar position spring, a locking pin and a locking pin spring; the central positioning base has a locking position groove that corresponds to the locking position of the counterweight adjustment; the locking position locking bar has a locking position groove and a locking head that is locked together with the locking position groove; the locking pin has a straight pin portion that is movable relative to the locking groove in the part Petition 870250060702, dated 07 / 15 / 2025, page 12 / 55 4 / 14 upper and a non-movable locking part corresponding to the locking groove on the lower part; the locking position locking bar is fixed horizontally to the rotation disc by means of a locking bar spring, the locking pin is fixed in the locking groove and fixed longitudinally between the rotation disc and the lower cover by means of a locking pin spring, and the straight pin part of the locking pin extends out of the straight pin hole of the rotation disc and works in conjunction with the body; when the body is pressed against the straight pin part, the locking pin moves downwards and the locking position locking bar is able to move outwards relative to the straight pin part to unlock the rotation disc;At this moment, when the handle is rotated, the locking bar of the locking position overcomes the spring force of the locking bar and moves from the previous locking groove to the next locking groove, causing the body and the rotation disc to rotate in sync to adjust the counterweight; when the body and the straight pin part are separated, the locking pin will jump upwards under the spring force of the locking pin, the locking bar of the locking position will work together with the locking groove so that the locking position cannot be moved and the locking head will work together with the locking position groove to lock the rotation disc.

[0008] In a further embodiment of the present invention, said counterweight support structure is fixed with a central positioning component, the upper part of the counterweight bar has a central positioning groove and the lower part has a counterweight bar positioning block, and the central positioning base has a counterweight bar positioning groove; the central positioning piece in the counterweight support structure fits into the central positioning groove of the counterweight bar of the upper layer, and the counterweight bar positioning block of the lower layer fits into the counterweight bar positioning groove in the base of Petition 870250060702, dated 07 / 15 / 2025, page 13 / 55 5 / 14 center positioning; the counterweight bars are positioned relative to each other by fitting the counterweight bar positioning block into the center positioning groove.

[0009] In a further embodiment of the present invention, said rotating disc has a body positioning base, and the body has a positioning guide component that is positioned together with the body positioning base.

[0010] In a further embodiment of the present invention, said central positioning base is provided with an initial position arrow, and the counterweight bar has an arrow and a counterweight bar positioning number.

[0011] In a further embodiment of the present invention, said lower base has a counterweight indicator window aligned with the angle of the counterweight adjustment locking position, and the rotation disc has a counterweight indicator arrow cooperating with the counterweight indicator window.

[0012] In a further embodiment of the present invention, said counterweight indicator window is fitted with a counterweight display and a transparent cover to cover the counterweight display.

[0013] After adopting the aforementioned structure, compared with existing technology, the invention presents the following advantages and effects: (1) when the kettlebell is in a static state, the weight of the kettlebell can be adjusted by rotating the handle in the locking position, and the weight adjustment is simple and convenient. (2) when adjusting the weight of the kettlebells, the corresponding suspension components in the counterweight support structure and the corresponding curved suspension locks of the counterweight bar are combined, and at least two groups of suspension components and the corresponding curved suspension locks are combined to hold the counterweight bar, with a small gap, the counterweight bar is fitted with a compact, stable, reliable and minimal connection. Petition 870250060702, dated 07 / 15 / 2025, page 14 / 55 6 / 14 vibration. (3) After the counterweight adjustment is complete, the counterweight bar is automatically locked to the body by means of the rotation locking device, so that the counterweight bar cannot be rotated relative to the body, to ensure that the training does not fall off the piece, thus ensuring the safety of using Kettlebells. (4) The rotation disc locking position device allows free rotation during counterweight adjustment; in addition, the rotation disc is automatically locked to the central positioning base when the handle is lifted, ensuring that the locking position indication is consistent with the counterweight adjustment. DRAWING DESCRIPTION

[0014] Figure 1 shows a schematic diagram of the breakdown of the creation of the present invention.

[0015] Figure 2 shows a schematic diagram with a top view of the handle assembly of the present invention.

[0016] Figure 3 shows a schematic diagram with a vertical view of the handle assembly of the present invention.

[0017] Figure 4 shows a schematic diagram of the disassembly of the handle assembly of the present invention.

[0018] Figure 5 shows a schematic diagram of the breakdown of the lower base assembly of the present invention.

[0019] Figure 6 shows a schematic diagram with a main view of the creation of the present invention.

[0020] Figure 7 shows a schematic diagram of section AA of the creation of the present invention.

[0021] Figure 8 shows a schematic diagram of section BB of the present invention when no parts are suspended.

[0022] Figure 9 shows a schematic diagram of section BB of the present invention when all parts are suspended.

[0023] being 1 handle, 2 outer body, 3 counterweight bar, 4 arrow and counterweight bar positioning number, 5 positioning base Petition 870250060702, dated 07 / 15 / 2025, page 15 / 55 7 / 14 central, 6 rotation disc, 7 lower base, 8 body positioning base, 9 central positioning groove, 10 anti-rotation positioning groove, 11 curved suspension lock, 12 counterweight bar positioning groove, 13 initial position arrow, 14 rotation disc locking position locking device, 15 indicator arrow, 16 counterweight indicator window, 17 inner body, 18 central positioning piece, 19 rotation locking device, 20 counterweight support structure, 21 suspension component, 22 guide plate, 23 positioning guide component, 24 locking block spring, 25 counterweight bar locking block, 26 locking position locking bar, 27 locking bar spring, 28 locking pin, 29 locking pin spring, 30 lower cover, 31 ball rotation support, 32 counterweight dial, 33 transparent cover, 34 locking groove, 35 straight pin part,36 lower base positioning groove, 37 locking head, 38 locking part, 39 locking position groove. DETAILED DESCRIPTION OF THE INVENTION

[0024] Figures 1 to 9 show a specific implementation solution for creating the present invention of an adjustable Kettlebell with counterweight, comprising a body, a handle 1 fixed to the body, multiple counterweight bars 3, a lower base 7.The said body includes an inner body 17 and an outer body 2, a counterweight support structure 20, the counterweight support structure 20 is fixedly connected to the inner body 17 and outer body 2, and the counterweight support structure 20 has a suspended component 21 corresponding to the counterweight bar 3; said counterweight bars 3 are positioned and stacked in order of arrangement and cannot be rotated relative to each other; the counterweight bars 3 have curved suspension locks 11 corresponding to the suspended component 21; the curved suspension locks 11 on the counterweight bars 3 are installed from top to bottom, from longest to shortest, and form the counterweight adjustment positions, one for each locking position; there are. Petition 870250060702, dated 07 / 15 / 2025, page 16 / 55 8 / 14 six counterweight bars 3, as well as neutral locking positions; each bar has 3 kg and the counterweight adjustment locking positions are 7 positions in total; said lower base 7 has a lower base positioning groove 36, the central positioning base 5 is mounted on the lower base 7 by means of the lower base positioning groove 36, ensuring that the mounting position of the central positioning base 5 is unique; said lower base 7 has a rotation disc 6 between the lower base 7 and the central positioning base 5; the central positioning base 5 is located in the center of the rotation disc 6; the rotation disc 6 is rotatably fixed to the lower base 7 by means of a ball rotation structure 31; the counterweight bar 3 is positioned and placed on the central positioning base 5; the body is positioned and placed on the rotation disc 6 and covers the counterweight bar 3.When handle 1 rotates the body, the suspension component 21 of the counterweight support structure 20 slides under the curved suspension lock 11 of the corresponding counterweight bar 3 to ensure the adjustment of the counterweight.

[0025] To ensure the stability and reliability of the counterweight adjustment and to prevent the counterweight bar 3 from rotating, said inner body has a rotation locking device 19 for the counterweight bar, said rotation locking device 19 comprises a guide plate 22 that slides on the body, a counterweight bar locking block 25 fixedly connected to the upper part of the guide plate 22, a locking block spring 24 that applies elasticity to the counterweight bar locking block 25; the higher counterweight bar 3 has an anti-rotation positioning groove 10 in conjunction with the counterweight bar locking block 25, the number of anti-rotation positioning grooves being equal to the number of counterweight adjustment locks, with a total of 7 anti-rotation positioning grooves 10;When the body is placed on the rotation disc 6, the guide plate 22 rests on top of the rotation disc 6, and the locking block of the counterweight bar 25, under the action of the guide plate 22, causes the block to; Petition 870250060702, dated 07 / 15 / 2025, page 17 / 55 9 / 14 counterweight bar locking 25 and the corresponding anti-rotation positioning groove 10 are separated and unlocked, and the body can rotate relative to the counterweight bar 3 to adjust the counterweight; when handle 1 is raised, guide plate 22 is separated from rotation disc 6 and the locking block, under the action of the locking block spring 24, causes the counterweight bar locking block 25 to combine and lock with the corresponding anti-rotation positioning groove 10, and causes the counterweight bar 3 to be unable to rotate relative to the body.

[0026] To perform the locking position adjustment and prevent the locking position from being accidentally changed, the lower cover 30 is fixed to the rotating disc 6. Said rotating disc 6 is fixed with a lower cover, and a locking position device for the rotating disc 14 is provided between the rotating disc 6 and the lower cover; said locking position device for the rotating disc 14 has a locking position locking bar 26, a locking bar position spring 27, a locking pin 28 and a locking pin spring 29; the central positioning base 5 has a locking position groove 39 that corresponds to the locking position of the counterweight adjustment; the locking position locking bar 26 has a locking position groove 39 and a locking head 37 that is locked together with the locking position groove 39;the locking pin 28 has a straight pin portion 35 that is movable relative to the locking groove 34 at the top and a non-movable locking pin portion 38 corresponding to the locking groove 34 at the bottom; the locking position bar 26 is horizontally fixed to the rotating disc 6 by means of a locking bar spring 27, the locking pin 28 is fixed in the locking groove 34 and longitudinally fixed between the rotating disc 6 and the lower cover 30 by means of a locking pin spring 29, and the straight pin portion 35 of the locking pin 28 extends out of the straight pin hole of the rotating disc 6 and works in conjunction with the body; when the body is; Petition 870250060702, dated 07 / 15 / 2025, page 18 / 55 10 / 14 pressed against the straight pin part 35, the locking pin 28 moves downwards, the straight pin part 35 engages with the locking groove 34, the locking part 38 becomes misaligned with the locking groove 34 and the locking position bar 26 is able to move outwards relative to the straight pin part 35 to unlock the rotation disc 6; at this moment, when the handle 1 is turned, the locking position bar 26 overcomes the spring force of the locking bar 27 and moves from the previous locking groove 39 to the next locking groove 39, causing the body and the rotation disc 6 to rotate in sync to adjust the counterweight;When handle 1 is raised, the body and straight pin part 35 are separated, the locking pin 28 will spring up under the force of the locking pin spring 29, the locking position bar 26 will work together with the locking groove 34 so that the locking position cannot be moved and the locking head 37 will work together with the locking position groove 39 to lock the rotating disc 6.

[0027] To ensure uniform stacking of the corresponding counterweight bars 3, said counterweight support structure 20 is fixed with a central positioning component 18, the upper part of the counterweight bar 3 has a central positioning groove 9 and the lower part has a counterweight bar positioning block, and the central positioning base 5 has a counterweight bar positioning groove 12; the central positioning piece 18 in the counterweight support structure 20 fits into the central positioning groove 9 of the counterweight bar 3 of the upper layer, and the counterweight bar positioning block of the lower layer fits into the counterweight bar positioning groove 3 in the central positioning base 5; the counterweight bars 3 are positioned relative to each other by fitting the counterweight bar positioning block 3 into the central positioning groove 9;the counterweight bar positioning blocks and the groove; Petition 870250060702, dated 07 / 15 / 2025, page 19 / 55 11 / 14 center positioning 9 9 of the counterweight bars 3 have a different coordination angle for each piece, so the center positioning groove 9 9 and the counterweight bars 3 can only be stacked in the order in which they are arranged and cannot be stacked if they are not arranged in order.

[0028] To ensure that the body is positioned for placement on the rotation disc 6, said rotation disc 6 has a body positioning base 8, the body has positioning guide components 23 that are positioned together with the body positioning base 8, and the body can only be inserted in one position to ensure that the body is accurately positioned on the rotation disc 6. Said central positioning base 5 has an initial position arrow 13 and a positioning arrow, and the counterweight bar 3 has a counterweight positioning arrow and a number 4 that corresponds to the positioning arrow on the central positioning base 5; the numbers on the counterweight bar 3 are arranged sequentially from top to bottom.

[0029] In order to allow the counterweight to be read visually, said lower base 5 has a counterweight indicator window 16 aligned with the angle of the counterweight adjustment locking position, and the rotation disc 6 has a counterweight indicator arrow 15 in cooperation with the counterweight indicator window 15. Said counterweight indicator window 16 is equipped with a counterweight dial 32 and a transparent cover 33 to cover the counterweight dial 33.

[0030] The operating principle of the present invention is as follows: in the initial state, the initial position arrow 13 on the central positioning base 5 and the indication arrow 15 on the rotation disc 6, indicating the counterweight, are aligned with the counterweight indication window 16, the counterweight bars 3 stacked in an organized sequence are placed on the central positioning base 5 and the counterweight positioning arrows and numbers 4 are aligned with the arrows of Petition 870250060702, dated 07 / 15 / 2025, page 20 / 55 12 / 14 positioning on the central positioning base 5, the body is placed on the rotation disc 6 by means of the positioning guide components 23 together with the body positioning base 8, as shown in Figures 1 and 8, with the counterweight adjustment located in the neutral locking position, none of the suspension components 21 being fitted into the corresponding curved suspension locks 11, the counterweight indicator arrows 15 being aligned with the counterweight indicator window 1 of the 2 kg neutral locking counterweight, i.e., the weights of the handles 1 and the body.At this moment, the guide plate 22 is pressed against the rotation disc 6, where the guide plate 22 overcomes the elastic force of the locking block spring 24 and pushes the counterweight bar locking block 25 upwards, the counterweight bar locking block 25 separates from the anti-rotation positioning groove 10 of the neutral block, causing the rotation locking device 19 to be in an unlocked state and the body to be able to rotate relative to the counterweight bar 3 to adjust the counterweight.Simultaneously, the body presses against the straight pin part 35 of the locking pin 28, the locking pin 28 overcomes the spring force of the locking pin 29 and moves downwards; the locking part 38 disengages from the locking groove 34, the straight pin part 35 engages with the locking groove 34, the locking device of the rotating disc lock position 14 is unlocked and the locking head 37 of the locking bar of the lock position 26 engages with the neutral position lock groove 39; when the rotating disc 6 is rotated, the locking bar of the locking position 26 is able to move outwards relative to the straight pin part 35 to ensure locking adjustment after overcoming the spring force of the locking bar 27.

[0031] The Kettlebell counterweight is adjusted as follows: when handle 1 is rotated through an angle from a locked position, handle 1 triggers the suspended component 21 in the counterweight support frame 20 to rotate. Petition 870250060702, dated 07 / 15 / 2025, page 21 / 55 13 / 14 through the body, and the suspended component 21 of the first lock slides to the bottom of the curved suspended lock 11 of the counterweight bar 3 of the first lock to perform the counterweight adjustment, while the suspended component 21 of the other locks is still in the separation state of the curved suspended lock 11 of the other locks; at this moment, the indicator arrow 15 indicating the counterweight is aligned with the counterweight indicator window 1 of the first lock with a 5 kg counterweight, the locking block of the counterweight bar 25 corresponds to the anti-rotation positioning position 10 of the first lock, and the locking head 37 of the locking bar of the locking position 26 of the block slides from the locking position groove 39 of the neutral lock to the locking position groove 39 of the first lock;Continuing to rotate handle 1 according to the steps above, the adjustment of the counterweight from the locking position of the second lock to the position of the sixth lock can be achieved, which will not be repeated in this document; the adjustment of the counterweight is shown in Figure 9 as being located in the position of the sixth lock; all suspended components 21 are fitted into the corresponding curved suspended locks 11, and the indicator arrow 15 indicating the counterweight is aligned with the counterweight indicator window 1 with a 20 kg counterweight in the sixth lock.

[0032] When handle 1 is raised after the kettlebell weight adjustment is complete, guide plate 22 separates from rotation disc 6, and the counterweight bar locking block 25 automatically engages with the corresponding anti-rotation positioning groove 10 under the action of the locking block spring force 24 to lock the counterweight bar 3; causing the counterweight bar 3 to be unable to rotate relative to the body, thus ensuring that the kettlebell reliably connects the counterweight bar 3 to the body during training. Simultaneously, the body is separated from the lower base 7, the locking pin 28 springs upward under the action of the locking pin spring 29; the locking part 38 works in conjunction with the locking groove 34 to make the bar... Petition 870250060702, dated 07 / 15 / 2025, page 22 / 55 14 / 14 locking of the locking position 26 immobile, and the locking head 37 of the locking bar of the locking position 26 locks into the locking groove 39 of the corresponding locking positioning position of the central positioning base 5, thus locking the rotation disc 6 and ensuring that the locking position indication is aligned with the counterweight adjustment.

[0033] The above-mentioned content is merely a specific example of the implementation of the present invention and is not a limitation of the present invention in any way. Simple modifications, equivalent alterations, or modifications made based on the technical scheme of the present invention without departing from the present invention fall within the scope of protection of the present invention. Petition 870250060702, dated 07 / 15 / 2025, page 23 / 55

Claims

1 / 5 CLAIMS 1. Adjustable weight kettlebell, including a body, a handle (1) fixed to the body, multiple counterweight bars (3) and a lower base (7), characterized in that: said body includes an inner body and an outer body (17, 2), a counterweight support structure (20), the counterweight support structure (20) being an inverted U-shaped structure that is fixedly connected to the inner body 17 and outer body 2, suspension component (21) corresponding to the counterweight plates (3) being symmetrically arranged on the suspension arms on both sides of the counterweight support structure (20);the said counterweight bars (3) being positioned and stacked in order of arrangement, wherein the counterweight bars (3) having curved suspension locks (11) corresponding to the suspended components, and the curved suspension locks (11) on the counterweight bars (3) being adjusted from top to bottom, in order from largest to smallest, and forming the counterweight adjustment locks; said lower base having a central positioning lower base (5), wherein a rotation disc (6) is provided between the lower base (7) and the central positioning lower base (5), the counterweight bar being positioned on the central positioning lower base (5), the body being positioned on the rotation disc (6) and covering the counterweight bar (3);when the handle (1) activates the body to rotate, the suspended component (21) in the counterweight support structure (20) slides onto the corresponding counterweight bar (3) under the curved suspended lock (11) to ensure the adjustment of the counterweight.

2. Kettlebell, according to claim 1, characterized in that: said body having a rotation locking device Petition 870250060702, dated 07 / 15 / 2025, page 28 / 55 2 / 5 (19) for the counterweight bar (3), said rotation locking device (19) comprising a guide rod (22) that slides on the body, a counterweight bar locking block (25) fixedly connected to the upper part of the guide rod (22), a locking block spring (24) that applies elasticity to the counterweight bar locking block (25); the higher counterweight bar (3) having an anti-rotation positioning groove (10) in conjunction with the counterweight bar locking block (25), the number of anti-rotation positioning grooves (10) being equal to the number of counterweight adjustment locks;When the body is placed on the rotation disc (6), the guide rod (22) rests on top of the rotation disc (6) and the locking block of the counterweight bar (25), under the action of the guide rod (22), causes the locking block of the counterweight bar (25) and the corresponding anti-rotation positioning groove (10) to be separated and unlocked, and the body is able to rotate relative to the counterweight bar (3) to adjust the counterweight; when the handle (1) is raised, the guide rod (22) is separated from the rotation disc (6) and the locking block, under the action of the locking block spring (24), causes the locking block of the counterweight bar (25) to be combined and locked with the corresponding anti-rotation positioning groove (10), and causes the counterweight bar (3) not to be able to rotate relative to the body.

3. Kettlebell, according to claim 1 or 2, characterized in that: said rotation disc (6) being fixed with a lower cover (30), and said rotation disc locking position locking device (14) being provided between the rotation disc (6) and the lower cover (30); said rotation disc locking position locking device (14) having a locking position locking bar (26), a locking bar position spring (27), a locking pin (28) and a locking pin spring (29); Petition 870250060702, dated 07 / 15 / 2025, page 29 / 55 3 / 5 the central positioning lower base (5) having a locking position groove (39) that corresponds to the counterweight adjustment locking position; the locking position bar (26) has a locking position groove (39) and a locking head (37) that is locked together with the locking position groove (39);the locking pin (28) having a straight pin part (35) movable relative to the locking groove (34) at the top and a non-movable locking pin part (38) corresponding to the locking groove (34) at the bottom; the locking position locking bar (26) being fixed horizontally to the rotating disc (6) by means of a locking bar spring (27), the locking pin (28) being fixed in the locking groove and fixed longitudinally between the rotating disc (6) and the lower cover (30) by means of a locking pin spring (29), and the straight pin part (35) of the locking pin (28) extending out of the straight pin hole of the rotating disc (6) and working together with the body;when the body is pressed against the straight pin part (35), the locking pin (28) moves downwards and the locking position bar (26) is able to move outwards relative to the straight pin part (35) to unlock the rotation disc (6); at this moment, when the handle (1) is turned, the locking position bar (26) overcomes the spring force of the locking bar (27) and moves from the previous locking groove (39) to the next locking groove (39), causing the body and the rotation disc (6) to rotate in synchrony to adjust the counterweight;when the body and the straight pin part (35) are separated, the locking pin (28) will spring up under the force of the locking pin spring (29), the locking position bar (26) will work together with the locking groove (39) so that the locking position Petition 870250060702, dated 15 / 07 / 2025, page 30 / 55 4 / 5 cannot be moved and the locking head (37) will work together with the locking position groove (39) to lock the rotating disc (6).; 4. Kettlebell, according to claim 3, characterized in that: said counterweight support structure (20) being fixed with a central positioning component (18), the upper part of the counterweight bar (3) having a central positioning groove (9) and the lower part having a counterweight bar positioning block, and the central positioning base (5) having a counterweight bar positioning groove (12); the central positioning piece (18) in the counterweight support structure (20) fitting into the central positioning groove (9) of the upper layer counterweight bar (3), and the lower layer counterweight bar positioning block fitting into the counterweight bar positioning groove (12) in the lower central positioning base (5); the counterweight bars (3) being positioned relative to each other by fitting the counterweight bar positioning block into the central positioning groove (9).

5. Kettlebell, according to claim 1, characterized in that: said rotating disc (6) having a body positioning base (8), and the body having a positioning guide component (23) that is positioned together with the body positioning base (8).

6. Kettlebell, according to claim 1, characterized in that: in a further embodiment of the present invention, said central positioning base (5) being provided with an initial position arrow (13), and the counterweight bar (3) having an arrow and a counterweight bar positioning number (4).

7. Kettlebell, according to claim 4, characterized in that: said lower base (7) having a counterweight indicator window (16) aligned with the angle of the counterweight adjustment lock position, and the rotation disc (6) having a counterweight indicator arrow (15) in cooperation with the counterweight indicator window (16).

8. Kettlebell according to claim 1, characterized in that: said counterweight indicator window (16) being fitted with a counterweight dial (32) and a transparent cover (33) to cover the counterweight dial (32). Petition 870250060702, dated 15 / 07 / 2025, p. 32 / 55

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