Kettle bell

Abstract

The utility model relates to the technical field of fitness equipment, and discloses a kettle-bell which comprises a kettle body, a balance weight adjusting assembly and a second direction limiting structure, and the kettle body is provided with an opening cavity; the balance weight adjusting assembly comprises an adjusting part and N balance weight parts which are sequentially arranged in a stacked mode in the first direction, and the opening cavity is used for containing the N balance weight parts. The adjusting piece can move relative to the kettle body and is provided with M bearing parts distributed at intervals in the first direction, N is larger than or equal to 1, and M is larger than or equal to 1 and smaller than or equal to N; the adjusting piece moves in the second direction to selectively connect the j counter weight pieces to the kettle body, at least the j-th bearing part bears the j-th counter weight selection position of the j-th counter weight piece, and j is larger than or equal to 1 and smaller than or equal to M; the adjusting piece is provided with an initial balance weight selection position where any balance weight piece is not connected to the kettle body; according to the kettle-bell provided by the invention, the total weight of the kettle body can be changed only by moving the adjusting piece to different counterweight selection positions.

Description

Technical Field

[0001] This application relates to the technical field of fitness equipment, and in particular to a kettlebell. Background Technology

[0002] In the fitness equipment industry, kettlebells are a common training device that plays an important role in strength and functional training. Traditional kettlebells are usually designed with a fixed weight, requiring users to change to different weights for different intensities of exercise. This not only increases the burden on users but also takes up a lot of storage space.

[0003] To meet users' needs for weight-adjustable kettlebells, the total weight of the kettle is often adjusted by increasing or decreasing the number of counterweights within the kettle body. In related technologies, when adding counterweights, they are fitted onto a screw inside the kettle body, and then the nut is tightened to limit all counterweights within the kettle body. When removing counterweights, the nut is unscrewed, the counterweight to be removed is taken off the screw, and then the nut is retightened to achieve the adjustment of the number of counterweights within the kettle body.

[0004] However, the kettlebell mentioned above requires the complete removal of the nut and manual addition or removal of counterweights when adjusting the total weight of the kettle, which is time-consuming and laborious, affecting the user experience. Utility Model Content

[0005] In view of this, this application provides a kettlebell to solve the problem that existing kettlebells require complete disassembly of the nuts and manual addition or subtraction of counterweights when adjusting the total weight of the kettle body, which is time-consuming, laborious, and affects the user experience.

[0006] This application provides a kettlebell, comprising:

[0007] The body of the pot has an open spout;

[0008] The counterweight adjustment assembly includes an adjustment member and N counterweight members stacked sequentially along a first direction. The opening is used to accommodate the N counterweight members. The adjustment member is movable relative to the kettle body. The adjustment member has M support portions spaced apart along the first direction, where N≥1 and 1≤M≤N.

[0009] The adjusting member has the ability to move along a second direction to selectively connect j counterweights to the kettle body, and at least the j-th support portion receives the j-th counterweight selection position of the j-th counterweight, wherein 1≤j≤M;

[0010] The adjusting element has an initial counterweight selection position where no counterweight is connected to the kettle body;

[0011] The second directional limiting structure has a locking position for the adjusting member in the upper limit position of the second direction, and an unlocking position for releasing the adjusting member from the upper limit position of the second direction.

[0012] Beneficial effects: When the kettle body needs to be connected to j counterweights (connected: integrated with the kettle body, the counterweights connected to the kettle body also move during the kettle body's movement), first, the second direction limiting structure is in the unlocked position, then the adjusting member is moved along the second direction to the j-th counterweight selection position, and then the second direction limiting structure is in the locked position. At this time, at least the j-th supporting part supports the j-th counterweight. Since N counterweights are stacked sequentially along the first direction, when the j-th supporting part supports the j-th counterweight, it will also support all the counterweights above the j-th counterweight, thus supporting j counterweights. By moving the adjusting member to different counterweight selection positions, different numbers of counterweights can be connected to the kettle body, thereby realizing the addition or removal of counterweights inside the kettle body, and thus realizing the adjustment of the total weight of the kettle body. The kettlebell provided in this application allows users to change the total weight of the kettle simply by moving the adjusting component to different weight selection positions, without requiring additional tools or complex disassembly and assembly steps. Its simple and convenient operation allows users to quickly adjust the total weight of the kettle according to their needs, meeting different training intensity requirements and improving the user experience. Furthermore, after adding or removing weights via the adjusting component, the second-direction limiting structure is locked in a fixed position, preventing the adjusting component from moving along the second direction and thus avoiding the possibility of the weights falling off due to changes in the position of the adjusting component during use.

[0013] In one optional embodiment, each of the counterweights is provided with a through hole, and a load-bearing portion is provided on the inner sidewall of each through hole. The N through holes enclose a hollow cavity, and the hollow cavity has a reference plane. The distance between the N load-bearing portions and the reference plane increases gradually along the first direction.

[0014] All M of the supporting parts are located inside the hollow cavity;

[0015] When the j-th counterweight is selected, at least the j-th supporting part abuts against the j-th part to be supported.

[0016] Beneficial effects: The distance between the N load-bearing parts and the reference plane increases gradually along the first direction, so that when each support part is detached from the hollow cavity, it can only support the counterweight connected to the pot body, and cannot support other counterweights. Specifically, when the j-th counterweight is selected, at least the j-th support part and the j-th load-bearing part abut against each other, so that the first to j-th load-bearing parts can be connected to the pot body. At this time, since the distance between the j+1 to N load-bearing parts and the reference plane is greater than the distance between the j-th load-bearing part and the reference plane, the j+1 to N support parts are located in the distance space between the corresponding load-bearing parts and the reference plane, that is, the j+1 to N load-bearing parts are not connected to the pot body. When the pot body is lifted, only j counterweights can be lifted at the same time, while the j+1 to N counterweights are not lifted.

[0017] In one alternative embodiment, each of the counterweights is provided with a plug-in portion and a plug-in slot, wherein the (i+1)th plug-in portion is plugged into the ith plug-in slot, and 1≤i≤N-1.

[0018] Beneficial effects: The interlocking of adjacent counterweights with plug-in joints and slots prevents misalignment and sliding between them, ensuring each counterweight maintains its position and facilitating subsequent counterweight selection. Furthermore, the interlocking of adjacent counterweights with plug-in joints and slots allows for quick assembly and disassembly of each counterweight.

[0019] In one alternative implementation, it further includes:

[0020] A first support is located inside the opening and is fixedly connected to the inner wall of the opening. A first sliding hole is provided on the first support, and the extension direction of the first sliding hole is the second direction.

[0021] The first slider is slidably connected to the first sliding hole and fixedly connected to the adjusting member;

[0022] The second slider has a second sliding hole on the kettle body, the second slider is slidably connected to the second sliding hole, and the second slider passes through the second sliding hole and is fixedly connected to the first slider;

[0023] The second slider slides along the extension direction of the second sliding hole, and drives the adjusting member to move along the second direction to switch different counterweight selection positions.

[0024] Beneficial effects: When the second slider moves along the extension direction of the second sliding hole, since the second slider is fixedly connected to the first slider, the second slider will drive the first slider to move, thereby causing the first slider to move along the extension direction of the first sliding hole. Since the first slider is fixedly connected to the adjusting component, the first slider will drive the adjusting component to move along the extension direction of the first sliding hole, so as to move the adjusting component to different counterweight selection positions, thereby realizing the connection of different numbers of counterweights to the kettle body. Users can change the total weight of the kettle body by moving the second slider, without additional tools or complicated disassembly and assembly steps, making the operation simple and convenient.

[0025] In one optional embodiment, the second directional limiting structure includes:

[0026] The first limiting member is slidably connected to the second slider, and the first limiting member has a first locking part;

[0027] The second sliding hole is provided with a plurality of first snap-fit ​​grooves, and the plurality of first snap-fit ​​grooves are distributed at intervals along the second direction;

[0028] The first latching part has a locking position for inserting into one of the first latching slots, and the first latching slot has a locking position for the first latching part in the second direction, and an unlocking position for the first latching part to disengage from the first latching slot.

[0029] The first limiting member moves along the first direction to switch the locked position and the unlocked position.

[0030] Beneficial effects: By engaging and disengaging the first limiting member with the first locking slot, the adjusting member is limited and unlocked in the second direction. When the first locking part is engaged with the first locking slot, the first locking slot can limit the first locking part in the second direction, placing the adjusting member in the desired counterweight selection position and preventing displacement of the adjusting member during use, thus avoiding the safety hazard of the counterweight falling off due to the movement of the adjusting member. When the first locking part is disengaged from the first locking slot, the user can easily adjust the counterweight as needed, making the operation simple and convenient.

[0031] In one optional embodiment, the second directional limiting structure further includes:

[0032] The second limiting member is slidably connected to the first slider, and the second limiting member has a second locking part;

[0033] The inner wall of the opening is provided with a plurality of second snap-fit ​​grooves, and the plurality of second snap-fit ​​grooves are connected end to end in sequence along the second direction;

[0034] An elastic element is connected to the second limiting element and the first slider respectively, and the elastic element has an initial elastic force to drive the second snap-fit ​​portion to insert into one of the second snap-fit ​​slots;

[0035] The first limiting member has a third engaging portion. In the locked position, the third engaging portion abuts against the second limiting member to limit the second engaging portion. In the unlocked position, the third engaging portion separates from the second limiting member, and the first slider can move along the second direction, driving the second engaging portion to move into the adjacent second engaging slot.

[0036] Beneficial effects: In the locked position, the third locking groove abuts against the second limiting member to further limit the adjusting member in the second direction, preventing the adjusting member from moving accidentally during use and improving the safety of use.

[0037] In one alternative implementation, it further includes:

[0038] The base, on which the counterweights are stacked in sequence, is placed, and the base has a first protrusion that is inserted into the Nth insertion slot.

[0039] Beneficial effects: The base provides support for the counterweights stacked sequentially. The first protrusion engages with the Nth insertion slot, preventing offset and misalignment between the counterweights and the base during adjustment. This ensures each counterweight maintains its position, facilitating subsequent counterweight selection. Furthermore, when the first protrusion engages with the Nth insertion slot, the Nth counterweight can be placed on the base, ensuring its position meets the requirements of subsequent counterweight selection, eliminating the need for user adjustment. Moreover, once the Nth counterweight meets the requirements, the engagement of adjacent counterweights ensures that the positions of other counterweights also meet the requirements.

[0040] In one alternative embodiment, the base further has a second protrusion and a third protrusion, and the pot body has a first slot and a second slot, the second protrusion being for insertion into the first slot and the third protrusion being for insertion into the second slot.

[0041] Beneficial effects: When the second protrusion is inserted into the second slot and the third protrusion is inserted into the first slot, the kettle can be placed on the base. Simultaneously, adjacent counterweights within the opening are also engaged, preventing misalignment and displacement of the counterweights while still allowing for subsequent counterweight selection. This avoids situations where users arbitrarily place the kettle on the base, making subsequent counterweight selection impossible.

[0042] In an alternative embodiment, a cushioning pad is further included, disposed between the counterweight and the inner wall of the oral cavity.

[0043] Beneficial effects: The cushioning pad can reduce the impact force of the counterweight hitting the inner wall of the opening, thereby reducing noise and reducing the damage of the counterweight to the inner wall of the opening. In addition, by placing the cushioning pad between the counterweight and the inner wall of the opening, the amplitude of the counterweight's swaying is reduced, thereby further reducing the impact force of the counterweight hitting the inner wall of the opening, thus extending the service life of the kettle body and further reducing noise.

[0044] In an alternative embodiment, a constraint ring (92) is further included, which is fitted around the periphery of the vessel body.

[0045] Beneficial effects: The restraint ring is placed around the outer perimeter of the pot, which increases the aesthetics of the pot and provides clamping force to reduce the degree of deformation caused by the impact of the counterweight, thereby extending the service life of the pot. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the kettlebell structure in this application;

[0047] Figure 2 This is a cross-sectional view of the kettlebell AA in this application;

[0048] Figure 3 This is a cross-sectional view of the kettlebell BB in this application;

[0049] Figure 4 This is a schematic diagram of the kettlebell without its base in this application;

[0050] Figure 5 This is a structural schematic diagram of the pot body, the first support base, the second limiting member, and the elastic member in this application;

[0051] Figure 6 This is an exploded view of all the counterweights, cushioning pads, and bases in this application;

[0052] Figure 7 This is an exploded schematic diagram of the first slider, the second slider, the first limiting member, the second limiting member, the elastic member, the second spring, and the pressing block in this application;

[0053] Figure 8 This is a schematic diagram of the structure of the first support in this application;

[0054] Figure 9 yes Figure 1 A magnified view of a portion of weight A;

[0055] Figure 10 This is a schematic diagram of the structure of the adjusting component in this application;

[0056] Figure 11 This is a structural schematic diagram of one of the counterweight components in this application;

[0057] Figure 12 This is a schematic diagram of the base in this application.

[0058] Explanation of reference numerals in the attached figures:

[0059] 100. Kettle body; 101. Opening mouth; 102. Second sliding hole; 103. First locking groove; 104. Second locking groove; 105. First slot; 106. Second slot;

[0060] 201. Adjusting component; 2011. Supporting part; 202. Counterweight; 2021. Through hole; 2022. Part to be supported; 2023. Insertion part; 2024. Insertion groove; 203. Hollow cavity; 204. Reference plane;

[0061] 301, First limiting member; 3011, First locking part; 3012, Third locking part; 302, Second limiting member; 3021, Second locking part; 303, Elastic member; 304, Second spring;

[0062] 401, First support base; 4011, First sliding hole; 402, First slider; 403, Second slider;

[0063] 500. Base; 501. First protrusion; 502. Second protrusion; 503. Third protrusion;

[0064] 600, cushioning pad;

[0065] 700, constraint ring;

[0066] 801. Hand lever; 802. Press block. Detailed Implementation

[0067] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0068] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0069] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0070] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0071] The following is combined Figures 1 to 12 This describes an embodiment of the kettlebell of this application.

[0072] An embodiment of this application provides a kettlebell, which includes a kettle body 100, a counterweight adjustment assembly, and a second-direction limiting structure. The kettle body 100 has an opening 101. The counterweight adjustment assembly includes an adjustment member 201 and N counterweight members 202 stacked sequentially along a first direction. The opening 101 is used to accommodate the N counterweight members 202. The adjustment member 201 is movable relative to the kettle body 100. The adjustment member 201 has M supporting portions 2011 spaced apart along the first direction, wherein N≥1, 1≤M≤N. 201 has a position for selectively connecting j counterweights 202 to the kettle body 100, and at least the j-th support portion 2011 receives the j-th counterweight selection position of the j-th counterweight 202, where 1≤j≤M; the adjusting member 201 has an initial counterweight selection position where no counterweight 202 is connected to the kettle body 100; the second direction limiting structure has a locking position for the adjusting member 201 at the upper limit position in the second direction, and an unlocking position for releasing the adjusting member 201 at the upper limit position in the second direction.

[0073] When the kettle body 100 needs to be connected to j counterweights 202 (connected to form an integral part of the kettle body 100, and the counterweight 202 connected to the kettle body 100 also moves during the movement of the kettle body 100), first, the second direction limiting structure is in the unlocked position, then the adjusting member 201 is moved along the second direction to the j-th counterweight selection position, and then the second direction limiting structure is in the locked position. At this time, at least the j-th supporting part 2011 supports the j-th counterweight 202. Since there are N counterweights 202... The weights are stacked sequentially along the first direction. Therefore, when the j-th supporting part 2011 supports the j-th counterweight 202, it also supports all the counterweights 202 above the j-th counterweight 202, thus supporting j counterweights 202. By moving the adjusting piece 201 to different counterweight selection positions, different numbers of counterweights 202 can be connected to the kettle body 100, thereby increasing or decreasing the number of counterweights 202 inside the kettle body 100, and thus adjusting the total weight of the kettle body 100. The kettlebell provided in this application can change the total weight of the kettle body 100 simply by moving the adjusting piece 201 to different counterweight selection positions, without the need for additional tools or complicated disassembly and assembly steps. The operation is simple and convenient, and users can quickly adjust the total weight of the kettle body 100 according to their own needs, meeting different training intensity requirements and improving the user experience. Furthermore, after the adjustment member 201 completes the addition or removal of the counterweight 202, the second direction limiting structure is locked in the second direction to limit the adjustment member 201 in the second direction, thereby preventing the adjustment member 201 from moving in the second direction and thus preventing the counterweight 202 from falling off due to changes in the position of the adjustment member 201 during use.

[0074] The kettle body 100 provides structural support for other components and supports the counterweight 202 within it, withstanding impacts from the counterweight 202 during movement. Additionally, the kettle body 100 protects its internal components from damage caused by external impacts. Figure 2 and Figure 3 As shown, the kettle body 100 includes a main body and an inner layer. The inner layer is located within the main body. The main body can be cast outside the inner layer or assembled from sheet metal. The rigidity and strength of the inner layer are higher than those of the main body. For example, the main body can be made of plastic, while the inner layer can be made of steel. This balances economy with ensuring the kettle body has the set strength and rigidity. Furthermore, the inner layer bears loads from both the outside and inside of the kettle body, ensuring it maintains the set strength and rigidity. Additionally, the material of the inner layer can be adjusted to change the mass of the kettle body 100 without altering its overall structure, thus allowing for variations in the kettle body's weight. Figure 5 As shown, the pot body 100 has an opening 101 inside, which is used to accommodate N counterweights 202, so as to... Figure 5Taking the pot body 100 as an example, the opening on the pot body 100 is located at the bottom of the pot body 100. The opening 101 can accommodate the counterweight 202 through the opening, or the counterweight 202 can detach from the opening 101 through the opening. The shape of the opening 101 is adapted to the shape of the counterweight 202, and those skilled in the art can adjust the shape of the opening 101 and the shape of the counterweight 202 as needed.

[0075] The counterweight adjustment assembly includes an adjustment component 201 and N counterweight components 202 stacked sequentially along a first direction, where N ≥ 1. In this embodiment, N is five. Of course, those skilled in the art can adjust the number of counterweight components 202 as needed. The first direction is the direction of gravity, i.e., the vertical direction. Each counterweight component 202 can be made of iron, lead, or other common counterweight materials. In this embodiment, the cross-sectional shape of each counterweight component 202 is circular, and the cross-sectional shape of the kettle body 100 is also circular. Of course, those skilled in the art can adjust the shape of the counterweight components 202 and the kettle body 100 as needed. Figure 2 and Figure 3 As shown, N counterweights 202 are stacked sequentially from top to bottom. The mass distribution of the N counterweights 202 can be designed according to different user groups. For example, the mass of the N counterweights 202 can gradually increase from top to bottom, which can meet the needs of user groups with a large range of weight increases for the kettle body 100. The adjusting member 201 can be moved relative to the kettle body 100 by being pushed by the user or driven by a driving member. The driving member can be a mechanism that moves in a straight line, such as a cam, cylinder, linear motor, or crank-slider. Figure 10 As shown, the adjusting member 201 includes a rod body and M supporting parts 2011. The M supporting parts 2011 are all fixedly connected to the rod body or integrally formed. The fixing method can be welding, snap-fitting, riveting, or bolting. The M supporting parts 2011 are distributed at intervals along the first direction, where 1≤M≤N. In this embodiment, the number of supporting parts 2011 is five. Of course, those skilled in the art can adjust the number of supporting parts 2011 as needed. When j counterweights 202 need to be connected to the kettle body 100, the adjusting member 201 moves along the second direction to move the adjusting member 201 to the j-th counterweight selection position. At this time, at least the j-th supporting part 2011 supports the j-th counterweight 202, where 1≤j≤M. Since N counterweights 202 are stacked sequentially along the first direction, when the j-th supporting part 2011 supports the j-th counterweight 202, it will also support all the counterweights 202 above the j-th counterweight 202, thus supporting j counterweights 202. Figure 3As shown, three counterweights 202 are connected to the kettlebell body. In this configuration, the third support 2011 supports the third counterweight 202, and the second support 2011 supports the second counterweight 202. The first to fifth counterweights 202 are stacked sequentially from top to bottom. Therefore, when the third support 2011 lifts the third counterweight 202, it also supports all the counterweights 202 above it. Furthermore, the second support 2011 also lifts the second counterweight 202 and supports the first counterweight 202 above it. Figure 3 Taking the perspective of [example device], when the adjusting member 201 is moved to the rightmost position, it is in the initial counterweight selection position. At this time, none of the M supporting parts 2011 support the corresponding counterweight 202, meaning the adjusting member 201 is not connected to any counterweight 202 to the kettle body 100. In this position, the total weight of the kettle body 100 is the sum of the weight of the kettle body 100 and the weight of the adjusting member 201. After the adjusting member 201 is in the desired counterweight selection position, the second-direction limiting structure can limit the adjusting member 201 in the second direction to restrict its loosening or movement in the second direction, thereby achieving self-locking of the adjusting member 201 in the second direction, improving the safety of the kettlebell, and preventing the adjusting member 201 from moving during vigorous movement of the kettlebell.

[0076] Furthermore, such as Figure 6 and Figure 11 As shown, each counterweight 202 has a through hole 2021, which provides movement space for the corresponding support portion 2011. The through hole 2021 can be rectangular, and the shape of the through hole 2021 is not limited in this embodiment. Taking the first counterweight 202 as an example from top to bottom, the first counterweight 202 has a first through hole 2021, the first support portion 2011 is located in the first through hole 2021, and the first support portion 2011 can move within the first through hole 2021; each through hole 2021 has a support portion 2022 on its inner sidewall, and each support portion 2022 is used to abut against the corresponding support portion 2011 so that the support portion 2011 can support the counterweight 202 corresponding to the support portion 2022, as well as all the counterweights 202 above the counterweight 202. In this embodiment, taking Figure 11 Taking the perspective of [the location] as an example, the part to be supported 2022 consists of two opposing protrusions, which are located on the left and right inner walls of the corresponding through holes 2021, respectively. Each support part 2011 is located below the corresponding part to be supported 2022, such as [example]. Figure 10 As shown, each support portion 2011 has two protrusions, which are symmetrically arranged on both sides of the rod body of the adjusting member 201. Each protrusion is used to support its corresponding two protrusions. Figure 3As shown, N through holes 2021 enclose a hollow cavity 203. The hollow cavity 203 has a reference plane 204. The distance between the N load-bearing parts 2022 and the reference plane 204 increases gradually along a first direction. The hollow cavity 203 is the moving space of the adjusting member 201 rod. In this embodiment, with Figure 3 Taking the perspective of [reference plane 204] as an example, the reference plane 204 is the right inner wall of the hollow cavity 203. Each load-bearing part 2022 has the same shape and size. The distance between the N load-bearing parts 2022 and the reference plane 204 increases gradually along the first direction. The distance between the M support parts 2011 and the reference plane 204 is the same, so that when each support part 2011 is detached from the hollow cavity 203, it can only support the counterweight 202 connected to the pot body 100, and cannot support other counterweights 202. Specifically, at the j-th counterweight selection position, at least the j-th support part 2011 and the j-th load-bearing part 202... 2. When the parts are connected, the first to the j-th parts to be supported 2022 can be connected to the pot body 100. At this time, since the distance between the (j+1)-th to the N-th parts to be supported 2022 and the reference plane 204 is greater than the distance between the j-th part to be supported 2022 and the reference plane 204, the (j+1)-th to the N-th supporting parts 2011 are located within the space between the corresponding parts to be supported 2022 and the reference plane 204. That is, the (j+1)-th to the N-th parts to be supported 2022 are not connected to the pot body 100. When the pot body 100 is lifted, only j counterweights 202 can be lifted at the same time, while the (j+1)-th to the N-th counterweights 202 are not lifted. In this embodiment, j is three. When the third counterweight is selected, the third supporting part 2011 abuts against the third part to be supported 2022, and the second supporting part 2011 abuts against the second part to be supported 2022.

[0077] In an alternative embodiment, the distance between the N load-bearing portions 2022 and the reference plane 204 increases gradually along the first direction, and the length of the N load-bearing portions 2022 decreases gradually along the first direction. Each load-bearing portion 2022 is in contact with a plane opposite to the reference plane 204, that is, each load-bearing portion 2022 is in contact with the left side of the hollow cavity 203, so that when the j-th counterweight is selected, the first to j-th supporting portions 2011 abut against the corresponding load-bearing portions 2022, so that when the kettle body 100 is lifted, the first to j-th supporting portions 2011 can abut against the corresponding load-bearing portions 2022.

[0078] In another alternative embodiment, the distances between the N load-bearing portions 2022 and the reference plane 204 are all the same, while the distances between the N support portions 2011 and the reference plane 204 increase gradually along the first direction, and the width of the adjusting member 201 is equal to half the width of the hollow cavity 203, with the other half being the moving space of the adjusting member 201.

[0079] Furthermore, such as Figure 6 and Figure 11 As shown, each counterweight 202 is provided with a plug-in portion 2023 and a plug-in slot 2024, such as Figure 2 As shown, the (i+1)th insertion part 2023 is inserted into the i-th insertion slot 2024, where 1 ≤ i ≤ N-1. For example, the second insertion part 2023 is inserted into the first insertion slot 2024. During the counterweight selection process, each insertion part 2023 is inserted into its corresponding insertion slot 2024. In this embodiment, the insertion part 2023 is a protrusion, and the insertion slot 2024 is a groove. Adjacent counterweights 202 are connected by the insertion of the insertion part 2023 into the insertion slot 2024 to avoid misalignment and mutual sliding between adjacent counterweights 202, and to ensure that each counterweight 202 maintains its own position, so that the subsequent counterweight selection operation can proceed smoothly. In addition, the insertion of the insertion part 2023 into the insertion slot 2024 between adjacent counterweights 202 facilitates the quick assembly and disassembly of each counterweight 202.

[0080] Furthermore, the kettlebell provided in this embodiment also includes a first support base 401, a first slider 402, and a second slider 403, as shown below. Figure 2 , Figure 3 and Figure 5 As shown, the first support base 401 is located inside the opening 101 and is fixedly connected to the inner wall of the opening 101. The first support base 401 is used to provide structural support for the adjusting member 201 and to provide an installation structure for the adjusting member 201, such as... Figure 8 As shown, a first sliding hole 4011 is provided on the first support base 401. The extending direction of the first sliding hole 4011 is the second direction. The first sliding hole 4011 is an elongated hole, and the second direction is the length direction of the first sliding hole 4011. Figure 3 As shown, the first slider 402 is located directly above the first sliding hole 4011. The first support base 401 has a sliding groove, and the first slider 402 has a first extension block. The first extension block is inserted into the sliding groove and slidably connected to it. The extension direction of the sliding groove is the same as the extension direction of the first sliding hole 4011, and they are spaced apart. There are two sliding grooves, located on either side of the first sliding hole 4011. There are also two first extension blocks, each inserted into one of the two sliding grooves, and both are slidably connected to the sliding hole 4011. The first slider 402 is also provided with a second extension block, which is inserted into the first sliding hole 4011 and fits against the inner sidewall of the first sliding hole 4011, and is slidably connected. The bottom of the first slider 402 is provided with a mounting groove, and the upper end of the adjusting member 201 passes through the first sliding hole 4011 and extends into the mounting groove, and is fixedly connected to the mounting groove. The fixing method can be one of welding, snap-fitting, bolting, or riveting. In this embodiment, the adjusting member 201 is fixed to the first slider 402 by bolts. Figure 9As shown, a second sliding hole 102 is provided on the kettle body 100. The second sliding hole 102 is located directly above the first sliding hole 4011 and has the same length as the first sliding hole 4011. It is parallel to the first sliding hole 4011. The second slider 403 is slidably connected to the second sliding hole 102. The second slider 403 passes through the second sliding hole 102 and is fixedly connected to the first slider 402. The second slider 403 slides along the extension direction of the second sliding hole 102 and drives the adjusting member 201 to move along the second direction to switch different counterweight selection positions. When the second slider 403 moves along the extension direction of the second sliding hole 102, since the second slider 403 is fixedly connected to the first slider 402, the second slider 403 will drive the first slider 402 to move, thereby causing the first slider 402 to move along the extension direction of the first sliding hole 4011. Since the first slider 402 is fixedly connected to the adjusting member 201, the first slider 402 will drive the adjusting member 201 to move along the extension direction of the first sliding hole 4011, so as to move the adjusting member 201 to different counterweight selection positions, thereby realizing the connection of different numbers of counterweight members 202 to the kettle body 100. The user can change the total weight of the kettle body 100 by moving the second slider 403, without additional tools or complicated disassembly and assembly steps, making the operation simple and convenient.

[0081] Furthermore, the second-direction limiting structure includes a first limiting member 301 and a second spring 304, such as Figure 7 As shown, the second slider 403 has a through hole, and the first limiting member 301 passes through the through hole and is slidably connected to the inner wall of the through hole. The first limiting member 301 has a first locking part 3011, which is a trapezoidal protrusion. The top of the first slider 402 has a first groove, and the bottom of the first limiting member 301 has a second groove. The two ends of the second spring 304 are respectively inserted into the first groove and the second groove, and respectively abut against the bottom wall of the first groove and the bottom wall of the second groove. The second spring 304 is used to provide a reset elastic force. Figure 9As shown, the second sliding hole 102 has a plurality of first engaging slots 103, which are spaced apart along the second direction. Each engaging slot is a notch on the first sliding hole 4011, and the notch is a rectangular notch. In the locked position, the first engaging part 3011 is inserted into one of the first engaging slots 103, and the first engaging slot 103 limits the first engaging part 3011 in the second direction. In the unlocked position, the second spring 304 is in a compressed state and provides a reset force, at which time the second engaging part 3021 disengages from the first engaging slot. The first limiting member 301 moves along the first direction to switch between the locked and unlocked positions. By the insertion and disengagement of the first limiting member 301 with the first engaging slot 103, the limiting and unlocking of the adjusting member 201 in the second direction are realized. When the first locking part 3011 is inserted into the first locking slot 103, the first locking slot 103 can limit the first locking part 3011 in the second direction, so that the adjusting member 201 is in the required counterweight selection position, preventing the adjusting member 201 from shifting during use, thereby avoiding the safety hazard of the counterweight 202 falling off due to the movement of the adjusting member 201. When the first locking part 3011 is disengaged from the first locking slot 103, it is convenient for the user to adjust the counterweight as needed, and the operation is simple and convenient. When it is necessary to adjust the first limiting member 301 from the locked position to the unlocked position, press the first limiting member 301 firmly so that the first limiting member 301 moves downward in the first direction. At this time, the second spring 304 is compressed and generates a reset force until the first locking part 3011 disengages from the first locking slot 103, thereby unlocking the adjusting member 201. After the first limiting member 301 is released, the first limiting member 301 moves upward under the action of the reset spring force, so that the second spring 304 gradually returns to its normal state and the first locking part 3011 is inserted into one of the locking slots to lock the adjusting member 201.

[0082] Furthermore, the second-direction limiting structure also includes a second limiting member 302 and an elastic member 303, such as... Figure 7As shown, the second limiting member 302 includes a first sliding block and a second sliding block disposed opposite to each other. A first receiving groove and a second receiving groove are provided on the first slider 402, spaced apart. The first sliding block is located in the first receiving groove, with one end extending out of the first receiving groove. The second sliding block is located in the second receiving groove, with one end extending out of the second receiving groove. A first blocking plate is provided on the first sliding block, and a second blocking plate is provided on the second sliding block. The first and second blocking plates form a second locking part 3021. The elastic member 303 is a first spring. One end of the elastic member 303 is fixedly connected to a portion of the first sliding block located in the first receiving groove, and the other end extends into the second receiving groove and connects to a portion of the second sliding block located in the second receiving groove. The elastic member 303 has an initial elastic force, which causes the first blocking plate to abut against the inner wall of the first receiving groove, and the second blocking plate to abut against the inner wall of the second receiving groove. When the first and second sliding blocks approach each other, the elastic member 303 is compressed to generate a restoring elastic force. Figure 5 As shown, the inner wall of the opening 101 is provided with a plurality of second engaging slots 104, which are arranged in two rows. The plurality of second engaging slots 104 in each row are sequentially connected end-to-end along a second direction. The initial elastic force of the elastic member 303 causes the portion of the first sliding block extending out of the first receiving groove to insert into one of the second engaging slots 104 in one row, and causes the portion of the second sliding block extending out of the second receiving groove to insert into one of the second engaging slots 104 in the other row. Figure 7As shown, the first limiting member 301 has a third engaging portion 3012, which consists of a first claw and a second claw arranged opposite to each other. In the locked position, the first claw abuts against the first blocking plate, and the second claw abuts against the second blocking plate, thereby limiting the first sliding block and the second sliding block to prevent them from getting close to each other. In the unlocked position, since the first limiting member 301 needs to move downward, it drives the first claw and the second claw downward, so that both the first claw and the second claw move below the first blocking plate and the second blocking plate, leaving clearance space so that the first sliding block and the second sliding block can get close to each other. At this time, the first slider 402 moves along the second direction, thereby driving the second engaging portion 3021 to move into the adjacent second engaging groove 104. In the locked position, the third engaging groove abuts against the second limiting member 302 to further limit the adjusting member 201 in the second direction, preventing the adjusting member 201 from moving accidentally during use and improving the safety of use. Each second locking slot 104 is an arc-shaped slot. The portion of the first sliding block that inserts into the second locking slot 104 is arc-shaped, and the portion of the second sliding block that inserts into the second locking slot 104 is arc-shaped. This reduces the frictional resistance of the first sliding block sliding through each second locking slot 104 during the movement of the adjusting member 201 in the second direction, ensuring smooth movement of both the first and second sliding blocks. The lower surface of the first blocking plate is a first inclined surface, and the lower surface of the second blocking plate is also a second inclined surface. The upper surface of the first claw is a third inclined surface, and the upper surface of the second claw is a fourth inclined surface. The slopes of the third and second inclined surfaces are the same as those of the first and fourth inclined surfaces. In the unlocked position, the first and third inclined surfaces abut against each other, and the second and fourth inclined surfaces abut against each other.

[0083] Furthermore, the kettlebell also includes a base 500, such as Figure 12As shown, the counterweights 202 arranged in sequence are placed on the base 500. The base 500 has a first protrusion 501, which is an arc-shaped protrusion. The first protrusion 501 is inserted into the Nth insertion groove 2024, which is an arc-shaped groove. The Nth insertion groove 2024 is the insertion groove 2024 on the counterweight 202 adjacent to the base 500. The base 500 provides support for the counterweights 202 stacked sequentially. The first protrusion 501 engages with the Nth insertion slot 2024, preventing offset and misalignment between the counterweights 202 and the base 500 during the movement of the adjusting member 201. This ensures that each counterweight 202 maintains its position, facilitating subsequent counterweight selection. Furthermore, when the first protrusion 501 engages with the Nth insertion slot 2024, the Nth counterweight 202 can be placed on the base 500, ensuring its placement meets the requirements of subsequent counterweight selection, eliminating the need for user adjustment. Moreover, once the Nth counterweight 202 meets the requirements, the engagement of adjacent counterweights 202 ensures that the placement of other counterweights 202 also meets the requirements of subsequent counterweight selection.

[0084] Furthermore, such as Figure 12 As shown, the base 500 also has a second protrusion 502 and a third protrusion 503. The first protrusion 501 and the second protrusion 502 are arc-shaped protrusions, such as... Figure 4 As shown, the kettle body 100 has a first slot 105 and a second slot 106, both of which are arc-shaped grooves. A second protrusion 502 is used to insert into the first slot 105, and a third protrusion 503 is used to insert into the second slot 106. The distance between the second protrusion 502 and the central axis of the base 500 is greater than the distance between the third protrusion 503 and the central axis of the base 500, preventing the user from inserting the second protrusion 502 into the second slot 106 and the third protrusion 503 into the first slot 105. When the second protrusion 502 is inserted into the second slot 106 and the third protrusion 503 is inserted into the first slot 105, the kettle body 100 can be placed on the base 500. At the same time, adjacent counterweights 202 within the opening 101 are all inserted and engaged, preventing misalignment and displacement of the counterweights 202 and meeting the requirements of subsequent counterweight selection operations. To prevent users from arbitrarily placing the kettle body 100 on the base 500, which would prevent subsequent counterweight selection operations from occurring.

[0085] Furthermore, the kettlebell provided in this embodiment also includes a cushioning pad 600, such as... Figure 6As shown, a cushioning pad 600 is disposed between the counterweight 202 and the inner wall of the opening 101. The cushioning pad 600 includes multiple cushioning strips, which are spaced apart around the central axis of the base 500. Each cushioning strip is made of elastic material. The cushioning pad 600 can reduce the impact force of the counterweight 202 hitting the inner wall of the opening 101, thereby reducing noise and reducing damage to the inner wall of the opening 101 caused by the counterweight 202. In addition, by placing the cushioning pad 600 between the counterweight 202 and the inner wall of the opening 101, the amplitude of the counterweight 202's swaying is reduced, thereby further reducing the impact force of the counterweight 202 hitting the inner wall of the opening 101, thus extending the service life of the kettle body 100 and further reducing noise.

[0086] Furthermore, the kettlebell provided in this embodiment, such as Figures 1 to 3 As shown, it also includes a constraint ring 700, which is sleeved on the outer periphery of the pot body 100. The constraint ring 700 sleeved on the outer periphery of the pot body 100 increases the aesthetics of the pot body 100 and provides clamping force to the pot body 100 to reduce the degree of deformation caused by the impact of the counterweight 202 on the pot body 100, thereby extending the service life of the pot body 100.

[0087] Furthermore, the kettlebell provided in this embodiment, such as Figure 1 As shown, it also includes a pressing block 802 and a carrying rod 801. The pressing block 802 is sleeved on the top of the first limiting member 301. When the pressing block 802 is pressed, it causes the first limiting member 301 to move downward, so that the first limiting member 301 is in the unlocked position. The carrying rod 801 is an arc-shaped rod, and both ends of the carrying rod 801 are fixed to the outer wall of the kettle body 100. The carrying rod 801 is used to facilitate the user to lift the kettle body 100.

[0088] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A kettlebell, characterized in that, include: The pot body (100) has an open mouth (101); The counterweight adjustment assembly includes an adjustment member (201) and N counterweight members (202) stacked sequentially along a first direction. The opening (101) is used to accommodate the N counterweight members (202). The adjustment member (201) is movable relative to the kettle body (100). The adjustment member (201) has M support portions (2011) spaced apart along the first direction, where N≥1, 1≤M≤N. The adjusting member (201) has the ability to move along a second direction to selectively connect j counterweights (202) to the pot body (100), and at least the j-th support (2011) receives the j-th counterweight selection position of the j-th counterweight (202), wherein 1≤j≤M; The adjusting member (201) has an initial counterweight selection position where no counterweight (202) is connected to the pot body (100); The second directional limiting structure has a locking position for the adjusting member (201) in the upper limit position of the second direction, and an unlocking position for releasing the adjusting member (201) in the upper limit position of the second direction.

2. The kettlebell according to claim 1, characterized in that, Each of the counterweights (202) has a through hole (2021), and each through hole (2021) has a load-bearing part (2022) on its inner sidewall. The N through holes (2021) enclose a hollow cavity (203), which has a reference plane (204). The distance between the N load-bearing parts (2022) and the reference plane (204) increases gradually along the first direction. All M of the aforementioned support portions (2011) are located within the hollow cavity (203); When the j-th counterweight is selected, at least the j-th supporting part (2011) abuts against the j-th bearing part (2022).

3. The kettlebell according to claim 2, characterized in that, Each of the counterweights (202) is provided with a plug-in part (2023) and a plug-in slot (2024), wherein the (i+1)th plug-in part (2023) is plugged into the i-th plug-in slot (2024), and 1≤i≤N-1.

4. The kettlebell according to any one of claims 1-3, characterized in that, Also includes: The first support base (401) is located inside the opening (101) and is fixedly connected to the inner wall of the opening (101). The first support base (401) is provided with a first sliding hole (4011), and the extension direction of the first sliding hole (4011) is the second direction. The first slider (402) is slidably connected to the first sliding hole (4011) and fixedly connected to the adjusting member (201); The second slider (403) is provided with a second sliding hole (102) on the pot body (100). The second slider (403) is slidably connected to the second sliding hole (102). The second slider (403) passes through the second sliding hole (102) and is fixedly connected to the first slider (402). The second slider (403) slides along the extension direction of the second sliding hole (102) and drives the adjusting member (201) to move along the second direction to switch different counterweight selection positions.

5. The kettlebell according to claim 4, characterized in that, The second directional limiting structure includes: The first limiting member (301) is slidably connected to the second slider (403), and the first limiting member (301) has a first snap-fit ​​portion (3011). The second sliding hole (102) is provided with a plurality of first snap-fit ​​grooves (103), and the plurality of first snap-fit ​​grooves (103) are distributed at intervals along the second direction; The first latching part (3011) has a locking position for engaging with one of the first latching slots (103), and the first latching slot (103) has a locking position for the first latching part (3011) in the second direction, and an unlocking position for the first latching part (3011) to disengage from the first latching slot (103). The first limiting member (301) moves along the first direction to switch the locked position and the unlocked position.

6. The kettlebell according to claim 5, characterized in that, The second directional limiting structure also includes: The second limiting member (302) is slidably connected to the first slider (402), and the second limiting member (302) has a second snap-fit ​​portion (3021). The inner wall of the opening (101) is provided with a plurality of second snap-fit ​​grooves (104), and the plurality of second snap-fit ​​grooves (104) are connected end to end in sequence along the second direction; The elastic element (303) is connected to the second limiting element (302) and the first slider (402) respectively. The elastic element (303) has an initial elastic force to drive the second snap-fit ​​portion (3021) to insert into one of the second snap-fit ​​grooves (104). The first limiting member (301) has a third latching portion (3012). In the locked position, the third latching portion (3012) abuts against the second limiting member (302) to limit the second latching portion (3021). In the unlocked position, the third latching portion (3012) separates from the second limiting member (302), and the first slider (402) can move along the second direction, driving the second latching portion (3021) to move into the adjacent second latching groove (104).

7. The kettlebell according to claim 1 or 6, characterized in that, Also includes: The base (500) has the counterweights (202) stacked on top of each other. The base (500) has a first protrusion (501) that is inserted into the Nth insertion slot (2024).

8. The kettlebell according to claim 7, characterized in that, The base (500) also has a second protrusion (502) and a third protrusion (503), and the pot body (100) has a first slot (105) and a second slot (106), the second protrusion (502) being used to insert into the first slot (105), and the third protrusion (503) being used to insert into the second slot (106).

9. The kettlebell according to claim 1 or 8, characterized in that, It also includes a buffer pad (600) disposed between the counterweight (202) and the inner wall of the opening (101).

10. The kettlebell according to claim 1 or 8, characterized in that, It also includes a constraint ring (700), which is sleeved on the outer periphery of the pot body (100).

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