Multi-gear adjusting structure of kettle-bell

Abstract

The utility model discloses a multi-gear adjusting structure of a kettle-bell, which comprises a plurality of kettle-bell sheets and a housing, an accommodating cavity for accommodating the kettle-bell sheets is arranged in the housing, the plurality of kettle-bell sheets are stacked up and down and accommodated in the accommodating cavity of the housing, a bearing group is arranged on the housing, the bearing group comprises bearing blocks which are in one-to-one correspondence with the kettle-bell sheets, and the bearing blocks are arranged in the accommodating cavity of the housing. The bearing blocks in the same group are vertically arranged into a straight line, the side portions of the kettle-bell pieces are provided with hanging lugs corresponding to the bearing blocks on the housing, and one end of the hanging lug on the upper layer of kettle-bell pieces in the hanging lugs corresponding to the bearing blocks in the same group exceeds one end of the hanging lug on the lower layer of kettle-bell pieces. At least one section of part of the hanging lug corresponding to the bearing blocks in the same group is located on the same vertical line, the kettle-bell pieces can be hung on the corresponding bearing blocks layer by layer by rotating the cover shell relative to the kettle-bell pieces, the adjusting mode is simple, control is convenient, the kettle-bell pieces only need to be provided with the hanging lugs to be matched with the bearing blocks on the cover shell to be hung, and the structure is simple.

Description

Technical Field

[0001] This utility model relates to a kettlebell, and more particularly to a multi-position adjustable structure for a kettlebell. Background Technology

[0002] A traditional kettlebell consists of a nearly spherical body and a handle attached to the body. It is a common piece of fitness equipment that can be used for various pushing, lifting, raising, throwing, and squatting jumps. The difference between kettlebell training and dumbbell or barbell training is that kettlebells are more effective in comprehensively improving overall explosive power, which is why kettlebells are more popular among combat and martial arts trainers.

[0003] For example, patent CN205019632U ​​discloses a vulcanized overcoated kettlebell, which includes an overcoating layer and a core. The overcoating layer wraps around the outer layer of the core. The core includes an arc-shaped kettlebell body and a handle. The kettlebell body and the handle are connected. The core contains filler. The weight of the kettlebell varies from a few kilograms to tens of kilograms. Existing traditional kettlebells are generally a single structure, and the weight cannot be changed. Exercisers need to equip a set of several kettlebells of different weights to meet all training needs, which not only increases the purchase cost but also makes it inconvenient to store and carry.

[0004] To address the aforementioned issues, adjustable-weight kettlebells have emerged on the market. For example, the kettlebell disclosed in patent CN217246498U includes a shell, a pin, and several first counterweights. The shell has an internal mounting cavity, and several positioning holes on both sides. The first counterweights are stacked vertically and housed within the mounting cavity. The pin is inserted into any of the positioning holes. The bottom of each first counterweight has a first guide groove corresponding to the pin. A limiting component is provided within the first guide groove. When the limiting component engages with the first limiting groove on the pin, it fixes the first counterweight above the pin within the mounting cavity. This patent allows for the production of kettlebells of different weights simply by adjusting the insertion position of the pin and replacing the internal counterweights, eliminating the need to prepare multiple kettlebells.

[0005] The existing adjustable weight kettlebell has a problem: in order for the first counterweight to engage with the pin inserted into the housing for locking, a limiting component needs to be installed on each first counterweight. The limiting component includes a first spring and a first stop corresponding to the first limiting groove. The setting of the limiting component increases the number of components on the counterweight, making the structure of the counterweight more complicated. Utility Model Content

[0006] Based on the kettlebell with counterweight adjusted by a pin, in order to lock the counterweight with the pin, a limiting component consisting of a spring and a stop needs to be added to the counterweight. The addition of the limiting component increases the components of the counterweight, making the counterweight structure more complex. This utility model provides a multi-position adjustment structure for the kettlebell.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a multi-position adjustable structure for a kettlebell, including several kettlebell plates and a cover. The cover has a cavity for accommodating the kettlebell plates, and the bottom of the cover has an opening for the cavity to allow the kettlebell plates to enter. Several kettlebell plates are stacked one on top of the other and housed in the cavity of the cover. The cover has a support group for hanging the kettlebell plates inside. The support group includes a load-bearing block corresponding to each layer of kettlebell plates. The load-bearing blocks in the same group are arranged vertically in a straight line. The side of the kettlebell plate has a hanging ear corresponding to the load-bearing block on the cover. In the hanging ear corresponding to the load-bearing block in the same group, one end of the hanging ear on the upper layer of kettlebell plate extends beyond one end of the hanging ear on the lower layer of kettlebell plate, and at least one part of the hanging ear corresponding to the load-bearing block in the same group is on the same vertical line. The cover can rotate relative to the kettlebell plates. Rotating the cover relative to the kettlebell plates allows the kettlebell plates to be hung on the corresponding load-bearing blocks layer by layer.

[0008] A further preferred technical solution of this utility model is as follows: the hanging ears corresponding to the load-bearing blocks in the same group are arranged from top to bottom in descending order of length, and the other end of the hanging ear corresponding to the load-bearing blocks in the same group is flush or substantially flush.

[0009] A further preferred technical solution of this utility model is as follows: the cover is provided with two sets of support groups, which are arranged symmetrically on both sides inside the cover; the kettlebell plate is provided with two hanging ears corresponding to the two sets of support groups, which are arranged symmetrically on both sides of the kettlebell plate; and a channel for the weight block to pass through is provided between the two hanging ears on the kettlebell plate.

[0010] A further preferred embodiment of this utility model is as follows: the top of the cavity is provided with a first positioning protrusion, the center of the upper surface of the kettlebell is provided with a positioning groove, the center of the lower surface of the kettlebell is provided with a second positioning protrusion, the positioning groove of the uppermost kettlebell is inserted into the first positioning protrusion and can rotate relative to each other, the kettlebells are connected to the second positioning protrusion through the positioning groove, and the second positioning protrusion cooperates with the positioning groove to restrict the relative rotation of the two kettlebells.

[0011] A further preferred embodiment of this utility model is as follows: the cover is provided with a locking mechanism to prevent the kettlebell plate, which is attached to the load-bearing block, from rotating relative to the cover. The locking mechanism includes a locking element and a spring that applies elastic force to the locking element. The locking element can move linearly in the vertical direction relative to the cover. The lower end of the locking element extends to the bottom of the cover. The uppermost kettlebell plate is provided with a locking groove that cooperates with the locking element.

[0012] When the cover and kettlebell are placed on the support, the support pushes the locking element upward, causing the locking element to disengage from the corresponding locking groove. The cover can then rotate relative to the kettlebell it houses.

[0013] When the cover is lifted by an external force and separates from the supporting part, the lower end of the locking part loses force, and the spring pushes the locking part to move downward, so that the locking part is locked into the corresponding locking groove to lock the relative rotation of the cover and the kettlebell plate inside.

[0014] A further preferred embodiment of this utility model is as follows: the kettlebell plate is disc-shaped, the lug is arc-shaped, and the lug extends along the outline of the outer periphery of the kettlebell plate.

[0015] A further preferred embodiment of this invention is that the kettlebell plate has markings on its surface.

[0016] A further preferred embodiment of this utility model is as follows: the first positioning protrusion is a cylinder, the positioning groove of the uppermost kettlebell plate is a matching circular groove, the second positioning protrusion includes two positioning posts and an intermediate positioning part disposed between the two positioning posts, the positioning groove corresponding to the second positioning protrusion has the same shape as the second positioning protrusion, and the second positioning protrusion on the upper layer kettlebell plate is inserted into the positioning groove on the lower layer kettlebell plate to restrict the relative rotation of the two kettlebell plates.

[0017] A further preferred embodiment of this utility model is that the locking element is L-shaped.

[0018] A further preferred embodiment of this utility model is that the identifier can be numbers, letters, or patterns.

[0019] Compared with the prior art, the advantages of this utility model are that by setting load-bearing blocks arranged in a vertical line on the cover, and setting corresponding lugs on the side of the kettlebell, since one end of the lug on the upper layer of kettlebell in the same group of load-bearing blocks extends beyond one end of the lug on the lower layer of kettlebell, and at least a section of the lug on the same group of load-bearing blocks is on the same vertical line, rotating the cover relative to the kettlebell allows the kettlebell to be hung on the corresponding load-bearing blocks layer by layer, thereby realizing the adjustment of the kettlebell weight. The number of kettlebells hung on the cover is controlled by rotating the cover relative to the kettlebell, which is simple to adjust and easy to operate. Moreover, the kettlebell only needs to be equipped with lugs to cooperate with the load-bearing blocks on the cover for hanging, and the structure is simple. Attached Figure Description

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the overall structure of a kettlebell;

[0022] Figure 2 A cross-section diagram of a kettlebell Figure 1 ;

[0023] Figure 3 A cross-section diagram of a kettlebell Figure 2 ;

[0024] Figure 4 for Figure 3 Enlarged view of a portion at point A;

[0025] Figure 5 A diagram showing the disassembly of the cover, base, and kettlebell plate;

[0026] Figure 6 This is a schematic diagram of the internal structure of the casing;

[0027] Figure 7 A diagram illustrating the explosion of each kettle bell. Figure 1 ;

[0028] Figure 8 A diagram illustrating the explosion of each kettle bell. Figure 2 ;

[0029] Figure 9 This is a schematic diagram of the structure of the topmost kettlebell plate;

[0030] Figure 10 This is a schematic diagram of the base structure;

[0031] Figure 11 This is a schematic diagram showing the interaction between the load-bearing block and the kettlebell plate in the first gear position.

[0032] Figure 12 This is a schematic diagram showing the interaction between the load-bearing block and the kettlebell plate in the second position.

[0033] Figure 13 This is a schematic diagram showing the interaction between the load-bearing block and the kettlebell plate in the three positions.

[0034] Figure 14 This is a schematic diagram showing the interaction between the load-bearing block and the kettlebell plate in four different positions.

[0035] Figure 15 This is a schematic diagram showing the interaction between the load-bearing block and the kettlebell plate in the fifth position.

[0036] Figure 16 This is a schematic diagram showing the interaction between the load-bearing block and the kettlebell plate in the sixth position.

[0037] In the diagram: 1. Cover; 2. Base; 3. Handle; 4. Load-bearing block; 5. Kettlebell; 6. Support assembly; 7. Cavity; 8. Locking element; 9. Spring; 10. Protrusion; 11. Locking block; 12. Locking rod; 13. Locking groove; 14. First positioning protrusion; 15. Hanging ear; 16. Positioning groove; 17. Marker; 18. Middle positioning part; 19. Positioning post; 20. Second positioning protrusion; 21. Top block; 22. First kettlebell; 23. Second kettlebell; 24. Third kettlebell; 25. Fourth kettlebell; 26. Fifth kettlebell; 27. Sixth kettlebell. Detailed Implementation

[0038] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0039] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0040] Figures 1-16 As shown, the multi-position adjustable structure of the kettlebell includes several kettlebell plates 5 and a cover 1. The cover 1 has a cavity 7 for accommodating the kettlebell plates 5. The bottom of the cover 1 has an opening for the cavity 7, which is used to allow the kettlebell plates 5 to enter the cavity 7. Several kettlebell plates 5 are stacked one on top of the other. The cover 1 covers the stacked kettlebell plates 5 from the bottom opening, so that the kettlebell plates 5 are contained in the cavity 7 of the cover 1.

[0041] Figure 6 As shown, the cover 1 is provided with a support group 6 for attaching the kettlebell plates 5 that are internally housed. Each support group 6 includes a load-bearing block 4 corresponding to each layer of kettlebell plates 5. The load-bearing blocks 4 in the same group are arranged vertically in a straight line. The side of the kettlebell plate 5 is provided with a hanging ear 15 corresponding to the load-bearing block 4 on the cover 1. One end of the hanging ear 15 on the upper layer of kettlebell plate 5 extends beyond one end of the hanging ear 15 on the lower layer of kettlebell plate 5, and at least one part of the hanging ear 15 corresponding to the load-bearing block 4 in the same group is on the same vertical line. The cover 1 is fitted over the kettlebell plate 5 and can rotate relative to the kettlebell plate 5. Rotating the cover 1 relative to the kettlebell plate 5 allows the kettlebell plate 5 to be attached to the corresponding load-bearing block 4 layer by layer.

[0042] For example, when there are six kettlebell plates 5, the six kettlebell plates 5 are stacked one on top of the other, and the kettlebell plates 5 are arranged from top to bottom as the first kettlebell plate 22, the second kettlebell plate 23, the third kettlebell plate 24, the fourth kettlebell plate 25, the fifth kettlebell plate 26, and the sixth kettlebell plate 27. A set of support groups 6 includes six load-bearing blocks 4, each corresponding to one of the six kettlebell plates 5.

[0043] Figures 11-16As shown, since one end of the upper kettlebell plate 5 on the lug 15 corresponding to the load-bearing block 4 in the same group extends beyond one end of the lower kettlebell plate 5 on the lug 15, and at least a portion of the lug 15 corresponding to the load-bearing block 4 in the same group is on the same vertical line, and the load-bearing blocks 4 in the same group are vertically arranged in a straight line, initially, no kettlebell plate 5 is attached to the corresponding load-bearing block 4, and this state is considered an empty state. The cover 1 is rotated relative to the kettlebell plate 5 by a certain angle, causing the load-bearing block 4 corresponding to the first kettlebell plate 22 to move to below the portion of the lug 15 on the first kettlebell plate 22 that extends beyond one end of the lug 15 on the second kettlebell plate 23. The other load-bearing blocks 4 below are not below the lug 15 on their corresponding kettlebell plates 5. At this time, only... One kettlebell plate 5 is attached to the cover 1, considered as the first gear position. The cover 1 is rotated a certain angle relative to the kettlebell plate 5, causing the weight block 4 corresponding to the second kettlebell plate 23 to move to below the portion of the lug 15 on the second kettlebell plate 23 that extends beyond the lug 15 on the third kettlebell plate 24. The weight block 4 corresponding to the first kettlebell plate 22 remains below its corresponding lug 15. The other weight blocks 4 are not below the lug 15 on their respective kettlebell plates 5. At this point, two kettlebell plates 5 are attached to the cover 1, considered as the second gear position. The cover 1 is rotated a certain angle relative to the kettlebell plates 5, causing the weight block 4 corresponding to the third kettlebell plate 24 to move to the portion of the lug 15 on the third kettlebell plate 24 that extends beyond the lug 15 on the fourth kettlebell plate 25. Below, the weight block 4 corresponding to the first kettlebell 22 and the second kettlebell 23 is still below the corresponding lug 15, while the other weight blocks 4 are not below the lug 15 on their respective kettlebell 5. At this time, three kettlebells 5 are hooked to the cover 1, which is considered as the third position. The cover 1 is rotated a certain angle relative to the kettlebells 5, so that the weight block 4 corresponding to the fourth kettlebell 25 moves to below the part of the lug 15 on the fourth kettlebell 25 that extends beyond the lug 15 on the fifth kettlebell 26. The weight blocks 4 corresponding to the first kettlebell 22, the second kettlebell 23, and the third kettlebell 24 are still below the corresponding lug 15, while the other weight blocks 4 are not below the lug 15 on their respective kettlebells. At this time, there are four weight blocks 4. With the kettlebell plates engaged with the cover 1, considered as the fourth position, the cover 1 is rotated a certain angle relative to the kettlebell plates 5. This causes the weight block 4 corresponding to the fifth kettlebell plate 26 to move below the portion of the lug 15 on the fifth kettlebell plate 26 that extends beyond the lug 15 on the sixth kettlebell plate 27. The weight blocks 4 corresponding to the first kettlebell plate 22, second kettlebell plate 23, third kettlebell plate 24, and fourth kettlebell plate 25 remain below their respective lugs 15, while the weight block 4 corresponding to the sixth kettlebell plate 27 is not below its corresponding lug 15. At this point, five kettlebell plates 5 are engaged with the cover 1, considered as the fifth position. The cover 1 is then rotated a certain angle relative to the kettlebell plates 5, causing all six weight blocks 4 to move below the lugs 15 on their respective kettlebell plates 5.At this point, six kettlebell plates 5 are engaged with the cover 1, which is considered as the sixth position.

[0044] This patent controls the number of kettlebell plates 5 hanging on the cover 1 by rotating the cover 1 relative to the kettlebell plates 5, thereby adjusting the weight of the kettlebell. The adjustment method is simple and easy to operate. Moreover, the kettlebell plates 5 only need to be equipped with lugs 15 to cooperate with the load-bearing blocks 4 on the cover 1 for hanging, and the structure is simple.

[0045] Preferably, the length of the lugs 15 corresponding to the load-bearing blocks 4 in the same group decreases from top to bottom. The other end of the lugs 15 corresponding to the load-bearing blocks 4 in the same group is flush or basically flush with each other. This makes the lugs 15 of each kettlebell piece 5 present a state in which one end of the lug 15 on the upper layer of kettlebell piece 5 extends beyond one end of the lug 15 on the lower layer of kettlebell piece 5, and at least one part of the lug 15 corresponding to the load-bearing blocks 4 in the same group is on the same vertical line.

[0046] The aforementioned ear loops 15 can also be of equal length and partially staggered, or of random length. They are not limited to the ear loops 15 corresponding to the load-bearing blocks 4 in the same group being arranged from top to bottom in descending order of length, and the other end of the ear loops 15 corresponding to the load-bearing blocks 4 in the same group being flush or basically flush. As long as the ear loops 15 are stacked on top of each other, the ear loops 15 must satisfy the following: one end of the ear loop 15 on the upper layer of the kettlebell 5 corresponding to the load-bearing blocks 4 in the same group extends beyond one end of the ear loop 15 on the lower layer of the kettlebell 5, and at least one part of the ear loop 15 corresponding to the load-bearing blocks 4 in the same group is on the same vertical line.

[0047] Figure 2 , Figure 7 , Figure 8 As shown, preferably, the cover 1 is provided with two sets of support groups 6, which are arranged symmetrically on both sides inside the cover 1. The kettlebell plate 5 is provided with two lugs 15 corresponding to the two sets of support groups 6, which are arranged symmetrically on both sides of the kettlebell plate 5. A channel is provided between the two lugs 15 on the kettlebell plate 5 for the weight block 4 to pass through. The channel allows the weight block 4 to move to a position lower than the lug 15 on the corresponding kettlebell plate 5 when the cover 1 is placed downwards over the outside of the kettlebell plate 5.

[0048] By setting support groups 6 on both sides inside the casing 1 and corresponding hanging ears 15 on both sides of the kettlebell plate 5, the kettlebell plate 5 can be hung more stably while maintaining a simple structure.

[0049] Preferably, the kettlebell plate 5 is disc-shaped, and the lug 15 is arc-shaped, extending along the outline of the outer periphery of the kettlebell plate 5.

[0050] Preferably, the surface of the kettlebell plate 5 is provided with a mark 17, which can be a number, letter or pattern. The mark 17 makes it easy for the user to identify which layer the kettlebell plate 5 is stacked on.

[0051] Preferably, the identifier 17 is a number. For example, the identifier 17 is set to number 1 on the first kettlebell 22, the identifier 17 is set to number 2 on the second kettlebell 23, the identifier 17 is set to number 3 on the third kettlebell 24, the identifier 17 is set to number 4 on the fourth kettlebell 25, the identifier 17 is set to number 5 on the fifth kettlebell 26, and the identifier 17 is set to number 6 on the sixth kettlebell 27.

[0052] The top of the cavity 7 is provided with a first positioning protrusion 14, the center of the upper surface of the kettlebell 5 is provided with a positioning groove 16, and the center of the lower surface of the kettlebell 5 is provided with a second positioning protrusion 20. The positioning groove 16 of the uppermost kettlebell 5 is inserted into the first positioning protrusion 14 to position the uppermost kettlebell 5 relative to the cover 1. The first positioning protrusion 14 and the positioning groove 16 can rotate relative to each other. The kettlebell 5 are positioned by inserting the positioning groove 16 into the second positioning protrusion 20. The second positioning protrusion 20 and the positioning groove 16 cooperate to restrict the relative rotation of the upper and lower kettlebell 5. The cooperation between the second positioning protrusion 20 and the positioning groove 16 ensures that the kettlebell 5 will not rotate relative to each other when the cover 1 rotates relative to the kettlebell 5, so that the position between the lugs 15 of each kettlebell 5 will not change, thus achieving the above-mentioned weight adjustment.

[0053] Figures 6-10 As shown, preferably, the first positioning protrusion 14 is a cylinder, and the positioning groove 16 of the uppermost kettlebell plate 5 is a matching circular groove. The first positioning protrusion 14, when inserted into the positioning groove 16 of the uppermost kettlebell plate 5, only serves a positioning function. The first positioning protrusion 14 can rotate within the inserted positioning groove 16, allowing the cover 1 to rotate relative to the kettlebell plate 5. The second positioning protrusion 20 includes two positioning posts 19 and an intermediate positioning part 18 disposed between the two positioning posts 19. The positioning groove 16 corresponding to the second positioning protrusion 20 has the same shape as the second positioning protrusion 20. The second positioning protrusion 20 on the upper layer kettlebell plate 5 is inserted into the positioning groove 16 on the lower layer kettlebell plate 5 to restrict the relative rotation of adjacent kettlebell plates 5. The second positioning protrusion 20, when inserted into the corresponding positioning groove 16, serves both a positioning function and a function of restricting relative rotation. The shape of the second positioning protrusion 20 is not limited to the above-described structure; other structures that can achieve relative rotation restriction after insertion are also applicable to this patent.

[0054] The cover 1 is provided with a locking mechanism to prevent the kettlebell 5, which is attached to the load-bearing block 4, from rotating relative to the cover 1. The locking mechanism includes a locking member 8 and a spring 9 that applies elastic force to the locking member 8. The locking member 8 can move linearly in the vertical direction relative to the cover 1. The lower end of the locking member 8 extends to the bottom of the cover 1. The uppermost kettlebell 5 is provided with a locking groove 13 that cooperates with the locking member 8.

[0055] When the cover 1 and the kettlebell 5 are placed on the support part, the support part pushes the locking member 8 upward so that the locking member 8 disengages from the corresponding locking groove 13, and the cover 1 can rotate relative to the kettlebell 5 contained therein to adjust the number of kettlebell 5 that are connected to the load-bearing block 4.

[0056] When the cover 1 is lifted by external force and separates from the supporting part, the lower end of the locking member 8 loses force, and the spring 9 pushes the locking member 8 to move downward, so that the locking member 8 is locked into the corresponding locking groove 13 to lock the relative rotation of the cover 1 and the kettlebell 5 hanging inside. Since the locking member 8 is locked in the locking groove 13 on the uppermost kettlebell 5, it locks the rotation of the uppermost kettlebell 5 and the cover 1. Also, because the adjacent kettlebell 5 is limited to rotate by cooperating with the positioning groove 16 through the second positioning protrusion 20, the relative rotation of the cover 1 and the kettlebell 5 hanging inside can be locked when the locking member 8 is locked into the corresponding locking groove 13.

[0057] Preferably, the locking element 8 is L-shaped, and there are two locking elements 8. The uppermost kettlebell plate 5 is provided with two sets of locking grooves 13, which correspond to the two locking elements 8 respectively. Each set of locking grooves 13 is provided with at least a number of locking grooves 13 corresponding to the maximum number of kettlebell plates 5 that can be hung in the cover 1. For example, if the maximum number of kettlebell plates 5 that can be hung in the cover 1 is 6, then each set of locking grooves 13 contains at least 6 locking grooves 13 that cooperate with one locking element 8. When the cover 1 is rotated to adjust the gear, the locking element 8 jumps in different locking grooves 13. The two sets of locking grooves 13 are respectively set at the positions of the hanging ears 15 on both sides of the uppermost kettlebell plate 5.

[0058] Specifically, the locking component 8 includes a locking rod 12 and a locking block 11. The locking rod 12 is vertically positioned and movably mounted on the housing 1. The lower end of the locking rod 12 extends downward to the bottom of the housing 1. The locking block 11 is fixed to the upper end of the locking rod 12 for engaging with the locking groove 13. The locking block 11 is provided with a protrusion 10. One end of the spring 9 is fitted onto the protrusion 10, and the other end of the spring 9 abuts against the housing 1. The spring 9 has an elastic pushing force on the locking block 11 downward.

[0059] The aforementioned supporting part can be a placement platform, a base 2, or the ground. When the supporting part is a flat surface such as the ground or a placement platform, the lower end of the locking rod 12 can be set to extend beyond the bottom of the cover 1. When the cover 1 is placed on a flat surface, the locking rod 12 is pushed up on the flat surface to move the locking rod 12 and the locking block 11 upward, so that the locking block 11 can disengage from the locking groove 13. When the supporting part is the base 2, the base 2 can be used to place the stacked kettlebell pieces 5 and the cover 1. A protruding top block 21 can be provided on the base 2. When the cover 1 is placed on the base 2, the top block 21 pushes the locking rod 12 up to move the locking rod 12 and the locking block 11 upward, so that the locking block 11 can disengage from the locking groove 13.

[0060] A positioning groove 16 can be provided on the base 2 to engage with the second positioning protrusion 20 at the bottom of the bottom kettlebell plate 5 for positioning. The positioning groove 16 is located at the center of the top surface of the base 2, and the shape of the positioning groove 16 is the same as that of the second positioning protrusion 20. When the bottom kettlebell plate 5 is inserted into the positioning groove 16 on the base 2 through the second positioning protrusion 20, the second positioning protrusion 20 cooperates with the positioning groove 16 to restrict the relative rotation between the base 2 and the bottom kettlebell plate 5, so that when the stacked kettlebell plates 5 are placed on the base 2, they can remain in a state of relative rotation with the base 2, which facilitates the rotation adjustment of the cover 1.

[0061] A handle 3 is provided on the cover 1 for the user to hold.

[0062] The multi-position adjustment structure of the kettlebell provided by this utility model has been introduced above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A kettlebell with a multi-position adjustment structure, characterized in that, The device includes several kettlebell plates and a housing. The housing has a cavity for accommodating the kettlebell plates, and the bottom of the housing has an opening for the cavity to allow the kettlebell plates to enter. Several kettlebell plates are stacked one on top of the other and housed within the cavity of the housing. The housing has a support group for attaching the kettlebell plates to the housing. The support group includes load-bearing blocks corresponding to each layer of kettlebell plates. The load-bearing blocks in the same group are arranged vertically in a straight line. The sides of the kettlebell plates have hooks corresponding to the load-bearing blocks on the housing. In the same group of load-bearing blocks, one end of the hook on the upper layer of kettlebell plate extends beyond one end of the hook on the lower layer of kettlebell plate, and at least one section of the hook on the hook corresponding to the load-bearing block in the same group is on the same vertical line. The housing can rotate relative to the kettlebell plates, and rotating the housing relative to the kettlebell plates allows the kettlebell plates to be attached to the corresponding load-bearing blocks layer by layer.

2. The multi-position adjustment structure of the kettlebell according to claim 1, characterized in that, The length of the hanging ears corresponding to the load-bearing blocks in the same group is set from long to short from top to bottom, and the other end of the hanging ear corresponding to the load-bearing blocks in the same group is flush or basically flush.

3. The multi-position adjustment structure of the kettlebell according to claim 1 or 2, characterized in that, The cover is provided with two sets of support groups, which are arranged symmetrically on both sides inside the cover. The kettlebell plate is provided with two hanging ears corresponding to the two sets of support groups, which are arranged symmetrically on both sides of the kettlebell plate. A channel for the weight block to pass through is provided between the two hanging ears on the kettlebell plate.

4. The multi-position adjustment structure of the kettlebell according to claim 1, characterized in that, The top of the cavity is provided with a first positioning protrusion, the center of the upper surface of the kettlebell is provided with a positioning groove, the center of the lower surface of the kettlebell is provided with a second positioning protrusion, the positioning groove of the uppermost kettlebell is inserted into the first positioning protrusion and can rotate relative to each other, the kettlebells are connected to the second positioning protrusion through the positioning groove, and the second positioning protrusion cooperates with the positioning groove to restrict the relative rotation of the two kettlebells.

5. The multi-position adjustment structure of the kettlebell according to claim 4, characterized in that, The cover is equipped with a locking mechanism to prevent the kettlebell plate, which is attached to the load-bearing block, from rotating relative to the cover. The locking mechanism includes a locking element and a spring that applies a spring force to the locking element. The locking element can move linearly in the vertical direction relative to the cover. The lower end of the locking element extends to the bottom of the cover. The uppermost kettlebell plate is provided with a locking groove that cooperates with the locking element. When the cover and kettlebell are placed on the support, the support pushes the locking element upward, causing the locking element to disengage from the corresponding locking groove. The cover can then rotate relative to the kettlebell it houses. When the cover is lifted by an external force and separates from the supporting part, the lower end of the locking part loses force, and the spring pushes the locking part to move downward, so that the locking part is locked into the corresponding locking groove to lock the relative rotation of the cover and the kettlebell plate inside.

6. The multi-position adjustment structure of the kettlebell according to claim 1, characterized in that, The kettlebell plate is disc-shaped, and the lug is arc-shaped, extending along the outline of the outer periphery of the kettlebell plate.

7. The multi-position adjustment structure of the kettlebell according to claim 1, characterized in that, The kettlebell plate has markings on its surface.

8. The multi-position adjustment structure of the kettlebell according to claim 4, characterized in that, The first positioning protrusion is a cylinder, and the positioning groove of the uppermost kettlebell plate is a matching circular groove. The second positioning protrusion includes two positioning posts and an intermediate positioning part disposed between the two positioning posts. The positioning groove corresponding to the second positioning protrusion has the same shape as the second positioning protrusion. The second positioning protrusion on the upper layer kettlebell plate is inserted into the positioning groove on the lower layer kettlebell plate to restrict the relative rotation of the two kettlebell plates.

9. The multi-position adjustment structure of the kettlebell according to claim 5, characterized in that, The locking element is L-shaped.

10. The multi-position adjustment structure of the kettlebell according to claim 7, characterized in that, The identifier can be numbers, letters, or patterns.

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