A weight-adjustable counterweight device and system

Abstract

The present invention relates to a weight-adjustable counterweight device, comprising: a plurality of counterweight rings, each of which can be arranged on a first plane, the plurality of counterweight rings being concentrically arranged in sequence, and a linkage member being provided between two adjacent counterweight rings; a counterweight housing having an assembly cavity for accommodating the counterweight rings, the counterweight housing being detachably connected to the plurality of counterweight rings; a ring removal assembly being arranged between the counterweight housing and the plurality of counterweight rings; the counterweight housing retaining at least one of the plurality of counterweight rings in the assembly cavity through the ring removal assembly. Such a detachable arrangement enables the counterweight housing to be flexibly counterweighted and installed on a fixed end, and the operation is simple, convenient, and quick. The present invention also relates to a system having a weight-adjustable counterweight device.

Description

Technical Field

[0001] The present invention relates to the technical field of fitness equipment, and in particular to a weight-adjustable counterweight device and system. Background Art

[0002] People often use barbells or dumbbells to build strength, especially in the gym. As people continue to train, their strength increases, and at this point, a single barbell or dumbbell weight is no longer sufficient to meet their training needs. In response to this, barbells and dumbbells with adjustable weights are increasingly available on the market.

[0003] Adjustable weight barbells or dumbbells typically include a handle and multiple weight plates. The number of weight plates at each end of the handle can be adjusted to meet a person's specific exercise needs. Existing adjustable weight barbells or dumbbells have varying designs for adjustment mechanisms, ranging from simple to complex. A simple structure employs multiple weight plates with a central hole for accommodating the handle. Based on their exercise needs, the user can adjust the weights to their desired weight, then stack and sequentially attach the weight plates to each end of the handle. Finally, they are secured to the handle using a locking mechanism (e.g., a locking plate or nut).

[0004] Complex designs involve selecting the desired weight plate and attaching it to some fixed structure on the handle. For example, the counterweight on the handle can be adjusted by threading. Alternatively, a design incorporates a rack and pinion arrangement in the handle, a transmission mechanism for moving two extendable elements, a locking mechanism, and a nested weight unit with a rod attached to the side of the plate for support. While these structures allow for counterweight adjustment, their complex construction makes the operation of the counterweight cumbersome and inflexible, and the counterweight plate occupies a large area.

[0005] Prior art 1: invention patent application with publication number CN102649011A;

[0006] Prior art 2: invention patent application with publication number CN106573161A. Summary of the Invention

[0007] The present invention provides a weight-adjustable counterweight device and system to solve the technical problem that existing barbells or dumbbells still cannot be simply and flexibly counterweighted.

[0008] The present invention discloses a weight-adjustable counterweight device, which includes a plurality of counterweight rings, a counterweight housing, and a ring removal assembly. Each counterweight ring can be arranged on a first plane, and the plurality of counterweight rings are concentrically arranged in sequence, with a linkage member provided between each adjacent counterweight ring. The counterweight housing has an assembly cavity for accommodating the counterweight rings, and the counterweight housing is detachably connected to the plurality of counterweight rings. The ring removal assembly is arranged between the counterweight housing and the plurality of counterweight rings, and the counterweight housing retains at least one of the plurality of counterweight rings in the assembly cavity through the ring removal assembly.

[0009] Furthermore, the linkage is block-shaped; in two adjacent counterweight rings, one end of the linkage is arranged at the inner edge position of the counterweight ring located at the edge position, and the other end of the linkage is movably connected to the outer edge position of the counterweight ring located at the center position; or, one end of the linkage is arranged at the outer edge position of the counterweight ring located at the center position, and the other end of the linkage is movably connected to the inner edge position of the counterweight ring located at the edge position.

[0010] Furthermore, the ring removal assembly includes a ring removal plate and a driven plate; the counterweight housing is provided with at least one ring removal plate, and the ring removal plate is located at the cavity mouth of the assembly cavity; each counterweight ring is provided with a driven plate, and the multiple driven plates do not overlap with each other.

[0011] Among them, the counterweight shell is covered on multiple counterweight rings and rotated at a specific angle, and the ring removal plate on the counterweight shell contacts the driven plate of at least one counterweight ring corresponding to the specific angle; as the counterweight shell is removed from the multiple counterweight rings, at least one counterweight ring corresponding to the specific angle is retained in the assembly cavity due to the limiting effect of the ring removal plate on the driven plate, and the counterweight shell after weight adjustment is completed is arranged on the fixed end.

[0012] Furthermore, one end of the counterweight ring is provided with a plurality of clearance grooves, and the plurality of clearance grooves are evenly distributed around the axis of the counterweight ring.

[0013] Optionally, the driven plates of the plurality of counterweight rings except the counterweight ring located at the center all pass through the clearance grooves in sequence into the counterweight ring located at the center.

[0014] Furthermore, a support sleeve is provided in the assembly cavity, the support sleeve is located at the center of the assembly cavity, and the ring plate is provided at one end of the support sleeve away from the cavity bottom of the assembly cavity.

[0015] Furthermore, an auxiliary sleeve is provided in the assembly cavity, which is sleeved on the supporting sleeve and located between the bottom of the assembly cavity and the ring removal plate; a notch for accommodating the driven plate is provided at one end of the auxiliary sleeve away from the bottom of the assembly cavity.

[0016] Furthermore, the auxiliary sleeve is provided with a movable groove, which is located at one end of the auxiliary sleeve close to the notch; the notch is communicated with the movable groove.

[0017] Furthermore, the weight-adjustable counterweight device further includes an auxiliary component. The auxiliary component includes a movable sleeve, a spring, and an auxiliary protrusion. The movable sleeve is disposed at the notch of the mounting groove of the support sleeve; the spring is disposed within the mounting groove and is located between the movable sleeve and the bottom of the mounting groove; one end of the auxiliary protrusion is disposed on the outer wall of the movable sleeve, and the other end of the auxiliary protrusion extends through the movable hole of the support sleeve and into the movable groove.

[0018] Furthermore, the plurality of counterweight rings are provided with a snap-in hole.

[0019] Furthermore, the weight-adjustable counterweight device further includes a clamping rod disposed on the first plane, one end of the clamping rod being movably connected to the clamping hole.

[0020] Furthermore, the weight-adjustable counterweight device also includes a positioning assembly, which includes a positioning shaft, a positioning plate, a rib, and a plurality of limiting protrusions. The positioning shaft is configured on a first plane; one end of the positioning shaft away from the first plane is movably connected to the tubular cavity of the support sleeve; the positioning plate is arranged on the positioning shaft; the rib is arranged on one side of the positioning plate and is arranged around the positioning shaft; and the plurality of limiting protrusions are evenly distributed along the edge of the positioning plate.

[0021] Optionally, the driven plates of the plurality of counterweight rings except the counterweight ring located at the edge all penetrate the clearance groove to the outside of the counterweight ring located at the edge.

[0022] Furthermore, the ring plate is arranged on the cavity wall of the assembly cavity.

[0023] The present invention further discloses a system with a weight-adjustable counterweight device, wherein the system with a weight-adjustable counterweight device comprises the weight-adjustable counterweight device as described in any one of the above items.

[0024] The weight-adjustable counterweight device and system provided by the present invention can achieve the following technical effects:

[0025] 1. The weight-adjustable counterweight device disclosed in the present invention is designed to have a detachable connection between the counterweight shell and the counterweight ring, so that the counterweight shell can flexibly remove the required number of counterweight rings from multiple counterweight rings for counterweighting. Such a counterweight device is simple to operate and is convenient for users to perform counterweighting.

[0026] 2. The weight-adjustable counterweight device disclosed in the present invention is not only applicable to barbells or dumbbells, but also to other fitness equipment that requires counterweights, and has a wide range of uses.

[0027] The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are considered similar elements, and wherein:

[0029] Figure 1 It is a schematic diagram of an embodiment of a weight-adjustable counterweight device of the present invention;

[0030] Figure 2 It is a schematic diagram of an embodiment of a weight-adjustable counterweight device of the present invention with multiple counterweight rings arranged therein;

[0031] Figure 3 This is an explosion diagram of an embodiment of a weight-adjustable counterweight device with multiple counterweight rings. Figure 1 ;

[0032] Figure 4 It is a front view of an embodiment of a weight ring of a weight-adjustable weight device of the present invention;

[0033] Figure 5 It is a side view of an embodiment of a weight ring of a weight-adjustable weight device of the present invention;

[0034] Figure 6 This is an explosion diagram of an embodiment of a weight-adjustable counterweight device of the present invention. Figure 1 ;

[0035] Figure 7 yes Figure 6 A magnified view of part A;

[0036] Figure 8 It is a schematic diagram of an embodiment of an auxiliary sleeve of a weight-adjustable counterweight device of the present invention;

[0037] Figure 9 yes Figure 8 A magnified view of part B;

[0038] Figure 10 It is a partial cross-sectional schematic diagram of an embodiment of a weight-adjustable counterweight device of the present invention;

[0039] Figure 11 It is a schematic diagram of an embodiment of a positioning assembly of a weight-adjustable counterweight device of the present invention;

[0040] Figure 12 This is an explosion diagram of an embodiment of a weight-adjustable counterweight device of the present invention. Figure 2 ;

[0041] Figure 13This is an explosion diagram of an embodiment of a weight-adjustable counterweight device with multiple counterweight rings. Figure 2 ;

[0042] Figure 14 Schematic diagram of an embodiment of a system with a weight-adjustable counterweight device according to the present invention.

[0043] Reference numerals:

[0044] 1. Counterweight ring; 11. Driven plate; 12. Make way groove; 13. Snap-in hole; 14. Linkage member; 2. Counterweight housing; 21. Assembly cavity; 22. Ring removal plate; 221. Notch; 23. Support sleeve; 231. Installation groove; 232. Movable hole; 24. Auxiliary sleeve; 241. Notch; 242. Movable groove; 243. Limiting groove; 3. Fixed seat; 31. Snap-in rod; 32. First plane; 4. Auxiliary component; 41. Movable sleeve; 42. Spring; 43. Auxiliary protrusion; 5. Positioning component; 51. Positioning shaft; 52. Positioning plate; 53. Protruding ridge; 54. Limiting protrusion; 6. Fixed end. DETAILED DESCRIPTION

[0045] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0046] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0047] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific orientation, or to being constructed and operated in a specific orientation. Moreover, in addition to being used to indicate orientations or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure may be understood based on the specific circumstances.

[0048] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0049] Unless otherwise indicated, the term "plurality" means two or more and "plurality" means two or more.

[0050] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0051] like Figure 1 As shown, the present invention discloses a weight-adjustable counterweight device, comprising a plurality of concentrically arranged counterweight rings 1, a counterweight housing 2 that can be sleeved over the outermost counterweight ring 1, a linkage 14, and a ring removal assembly. The ring removal assembly comprises a ring removal plate 22 and a driven plate 11.

[0052] Alternatively, as Figures 2 to 4As shown, each counterweight ring 1 is annular, with a driven plate 11 constructed at one end of each counterweight ring 1, and the driven plate 11 of each counterweight ring 1 is arranged toward the center of the ring. Each counterweight ring 1 is provided with a plurality of clearance grooves 12 on the end surface of one end of the driven plate 11. Because each counterweight ring 1 is provided with a plurality of clearance grooves 12, one of them will be used as an example for description. The plurality of clearance grooves 12 are evenly distributed around the axis of the counterweight ring 1. For example, among the plurality of clearance grooves 12, the angle α between two adjacent clearance grooves 12 is 5°. The plurality of counterweight rings 1 are coaxially arranged and are sequentially arranged along the same axis. Among the multiple counterweight rings 1, the number of the give way grooves 12 of the counterweight ring 1 located at the center position decreases successively toward the outside, that is, the number of the give way grooves 12 of the counterweight ring 1 located at the center position is the largest, and the number of the give way grooves 12 of the counterweight ring 1 located at the edge position is the smallest, or the counterweight ring 1 located at the edge position is not provided with a give way groove 12.

[0053] When multiple counterweight rings 1 are sequentially sleeved, the driven plates 11 of the multiple counterweight rings 1 do not overlap, and the driven plates 11 of the multiple counterweight rings 1 except the counterweight ring 1 at the center sequentially penetrate the multiple make-way grooves 12 to the counterweight ring 1 at the center. For example, when three counterweight rings 1 are sequentially sleeved, the counterweight ring 1 at the center has 10 make-way grooves 12, the counterweight ring 1 adjacent to the counterweight ring 1 has 9 make-way grooves 12, and the counterweight rings at the edge have 10 make-way grooves 12. The ring 1 has eight clearance grooves 12. The driven plate 11 of the counterweight ring 1 with nine clearance grooves 12 penetrates one clearance groove 12 of the counterweight ring 1 at the center and enters the counterweight ring 1 at the center. The driven plate 11 of the counterweight ring 1 with eight clearance grooves 12 sequentially penetrates one clearance groove 12 of the counterweight ring 1 with nine clearance grooves 12 and another clearance groove 12 of the counterweight ring 1 at the center and enters the counterweight ring 1 at the center. This structural design facilitates flexible ring removal and counterweighting of the counterweight housing 2.

[0054] Alternatively, as Figure 3 As shown, at least one linkage member 14 is provided between each of the two adjacent counterweight rings 1. The linkage member 14 is block-shaped. In the two adjacent counterweight rings 1, one end of the linkage member 14 is provided at the inner edge of the counterweight ring 1 at the edge, and the other end of the linkage member 14 can contact the outer edge of the counterweight ring 1 at the center. The user can take out the counterweight ring 1 at the center for counterweighting. Due to the linkage effect of the linkage member 14, the user can also take out the counterweight ring 1 at the edge and drive the counterweight ring 1 located inside the counterweight ring 1 to be taken out, that is, both counterweight rings 1 are taken out for counterweighting. This design method facilitates the user to flexibly select the counterweight ring for counterweighting.

[0055] Alternatively, as Figure 3As shown, when there are multiple linkage members 14, they are evenly distributed around the axis of the counterweight ring 1. The space between two adjacent linkage members 14 can be considered as a clearance groove 12. One end of the linkage member 14 is disposed on the end surface of the counterweight ring 1 where the clearance groove 12 is provided, and the other end of the linkage member 14 is located within the counterweight ring 1.

[0056] Alternatively, as Figure 3 As shown, for example, when two counterweight rings 1 are wanted to be used for counterweighting, the driven plate 11 of the counterweight ring 1 at the edge position drives the counterweight ring 1 at the center position to move together, and the linkage part 14 of the counterweight ring 1 at the edge position can assist the counterweight ring 1 at the center position to move better, so that the counterweight ring 1 at the center position is more evenly stressed when moving.

[0057] Alternatively, as Figure 2 As shown, when multiple counterweight rings 1 are sequentially installed from the outside inward, the multiple counterweight rings 1 are all arranged on the first plane 32. When removing the rings for counterweighting, the operation is performed from the inside out. The ground can be regarded as the first plane 32, or the wall can also be regarded as the first plane 32.

[0058] Optionally, the weight of each counterweight ring 1 ranges from 2.5 kg to 30 kg. The weight of each counterweight ring 1 can be the same or different, which is convenient for flexible weight adjustment.

[0059] Alternatively, as Figure 4 As shown, the thicknesses D of the plurality of weight rings 1 are different, and the thicknesses D of the plurality of weight rings 1 decrease successively along the first direction, so as to facilitate flexible adjustment of the weight to ensure that the weight of each weight ring 1 is the same.

[0060] Alternatively, as Figure 5 As shown, the lengths L of the plurality of weight rings 1 are different, and the lengths L of the plurality of weight rings 1 decrease successively along the first direction, so as to facilitate flexible weight adjustment to ensure that the weight of each weight ring 1 is the same.

[0061] Of course, the present invention can also better ensure that the weight of each weight ring 1 is the same by combining the thickness and length of the weight ring 1.

[0062] Alternatively, as Figure 3 As shown, each of the multiple weight rings 1 is configured with at least one engaging hole 13. The axis of the engaging hole 13 is parallel to the axis of the weight ring 1. When there are two or more engaging holes 13, the two or more engaging holes 13 are evenly spaced around the axis of the weight ring 1. The size and number of the engaging holes 13 on the weight ring 1 are adjusted to ensure that each weight ring 1 has the same weight.

[0063] Alternatively, as Figure 1As shown, the weight-adjustable counterweight device further includes a fixed base 3 and a clamping rod 31. The fixed base 3 is mounted on the ground. The cross-section of the fixed base 3 is an inverted T-shape, which allows for a more stable mounting on the ground. A side surface of the fixed base 3 can be considered a first plane 32. One end of the clamping rod 31 is mounted on the first plane 32 of the fixed base 3. By positioning the other end of the clamping rod 31 within the clamping hole 13 of the counterweight ring 1, a removable connection between the clamping rod 31 and the counterweight ring 1 is achieved.

[0064] Alternatively, as Figure 6 、 Figure 7 As shown, an assembly cavity 21 is constructed on one end face of the counterweight housing 2. The assembly cavity 21 is cylindrical in shape, and the assembly cavity 21 is used to accommodate the counterweight ring 1. At least one ring removal plate 22 is constructed on the counterweight housing 2. A support sleeve 23 is provided in the assembly cavity 21, one end of the support sleeve 23 is provided at the cavity bottom of the assembly cavity 21, and the other end of the support sleeve 23 is located at the cavity mouth of the assembly cavity 21. The support sleeve 23 is coaxially arranged with the counterweight housing 2. One end of the ring removal plate 22 is fixedly connected to the outer wall of the support sleeve 23, and the ring removal plate 22 is located at one end of the support sleeve 23 at the cavity mouth of the assembly cavity 21. Preferably, the cross-sectional shape of the ring removal plate 22 is L-shaped, and the side thereof with the notch 221 is arranged toward the cavity bottom of the assembly cavity 21.

[0065] Alternatively, as Figure 8 、 Figure 9 As shown, an auxiliary sleeve 24 is also provided in the assembly cavity 21 of the counterweight housing 2. The auxiliary sleeve 24 is sleeved on the support sleeve 23 and can rotate relative to the support sleeve 23. The auxiliary sleeve 24 is located between the cavity bottom of the assembly cavity 21 and the ring removal plate 22. One end of the auxiliary sleeve 24 abuts against the cavity bottom of the assembly cavity 21, and the other end of the auxiliary sleeve 24 abuts against the side of the ring removal plate 22 facing the cavity bottom of the assembly cavity 21. At this time, the ring removal plate 22 can also limit the auxiliary sleeve 24. The end of the other end of the auxiliary sleeve 24 is constructed with a plurality of notches 241. The plurality of notches 241 are evenly distributed around the axis of the auxiliary sleeve 24. The notches 241 are used to accommodate one end of the driven plate 11 away from the counterweight ring 1. For example, among the plurality of notches 241, the angle between two adjacent notches 241 is 5°.

[0066] Alternatively, as Figures 8 to 10As shown, a movable groove 242 is constructed on the inner wall of the auxiliary sleeve 24, and the movable groove 242 is arranged in a circle along the inner wall of the auxiliary sleeve 24. The movable groove 242 is located at one end of the auxiliary sleeve 24 near the notch 241. A plurality of limiting grooves 243 are also constructed on the inner wall of the auxiliary sleeve 24. The setting method of the limiting grooves 243 is the same as that of the notch 241, and the limiting grooves 243 are connected to the notch 241. This setting makes it easy to observe through the notch 241 whether the auxiliary protrusion 43 enters the limiting groove 243 for limiting. The limiting groove 243 is connected to the movable groove 242, which facilitates the auxiliary protrusion 43 to enter the movable groove 242 from the limiting groove 243. A mounting groove 231 is constructed on the inner wall of the support sleeve 23. A movable hole 232 is constructed on the side wall of the support sleeve 23, and the movable hole 232 can be a waist-shaped hole. The weight-adjustable counterweight device also includes an auxiliary component 4, which includes a movable sleeve 41, a spring 42, and an auxiliary protrusion 43. The movable sleeve 41 is disposed within the support sleeve 23 and is located at the notch of the mounting groove 231. The spring 42 is disposed within the mounting groove 231 and is located between the movable sleeve 41 and the bottom of the mounting groove 231. One end of the spring 42 is fixedly connected to one end of the movable sleeve 41 located at the notch of the mounting groove 231. The other end of the spring 42 is fixedly connected to the bottom of the mounting groove 231, or the other end of the spring 42 merely contacts the bottom of the mounting groove 231. One end of the auxiliary protrusion 43 is fixed to the outer tube wall of the movable sleeve 41, and the other end of the auxiliary protrusion 43 passes through the movable hole 232 of the support sleeve 23 and into the movable groove 242 of the auxiliary sleeve 24. At this time, the spring 42 is in a non-compressed state.

[0067] Alternatively, as Figure 1 、 Figure 11As shown, the weight-adjustable counterweight device further includes a positioning assembly 5, which includes a positioning shaft 51, a positioning disc 52, a rib 53, and a plurality of stop protrusions 54. One end of the positioning shaft 51 is positioned on the first flat surface 32 of the fixed seat 3, and the other end of the positioning shaft 51 can enter the tubular cavity of the support sleeve 23 to achieve a removable connection between the positioning assembly 5 and the support sleeve 23. The positioning disc 52 is disposed on the positioning shaft 51 and is coaxial with the positioning shaft 51. The rib 53 is disposed on the positioning disc 52 and is located on the side of the positioning disc 52 away from the first flat surface 32. The rib 53 is arranged in a circle along the outer wall of the positioning shaft 51. The plurality of stop protrusions 54 are each disposed at the edge of the positioning disc 52 and on the side of the positioning disc 52 away from the first flat surface 32. The stop protrusions 54 are L-shaped, with one end of the stop protrusion 54 fixedly connected to the positioning disc 52 and the other end of the stop protrusion 54 facing the positioning shaft 51. The plurality of limiting protrusions 54 are evenly arranged around the axis of the positioning shaft 51. Of course, a groove can be opened on the first side surface of the fixing seat 3, and one end of the positioning shaft 51, the positioning plate 52, the ribs 53 and the plurality of limiting protrusions 54 are all arranged in the groove for a hidden arrangement.

[0068] Alternatively, as Figure 12 As shown, each counterweight ring 1 is annular, with a driven plate 11 constructed at one end of each counterweight ring 1, and the driven plate 11 of each counterweight ring 1 is arranged to face outward from the ring. Each counterweight ring 1 is provided with a plurality of clearance grooves 12 on the end surface of one end of the driven plate 11. Because each counterweight ring 1 is provided with a plurality of clearance grooves 12, one of them will be used as an example for description. The plurality of clearance grooves 12 are evenly distributed around the axis of the counterweight ring 1. For example, among the plurality of clearance grooves 12, the angle between two adjacent clearance grooves 12 is 5°. The plurality of counterweight rings 1 are coaxially arranged and are sequentially sleeved along the same axis. Among the multiple counterweight rings 1, the number of the give way grooves 12 of the counterweight rings 1 located at the edge position decreases inward, that is, the counterweight rings 1 located at the edge position have the largest number of give way grooves 12, and the counterweight ring 1 located at the center position has the least number of give way grooves 12, or the counterweight ring 1 located at the center position has no give way groove 12.

[0069] When the multiple counterweight rings 1 are sequentially sleeved, the driven plates 11 of the multiple counterweight rings 1 do not overlap. At this time, the driven plates 11 of the multiple counterweight rings 1 are distributed outward from their annular shape in a divergent manner. The driven plates 11 of the other multiple counterweight rings 1 except the counterweight ring 1 at the edge position all sequentially penetrate multiple give-away grooves 12 to the outside of the counterweight ring 1 at the edge. For example, when three counterweight rings 1 are sequentially installed, the counterweight ring 1 at the center position has no give-away groove 12, the counterweight ring 1 adjacent to it has one give-away groove 12, and the counterweight ring 1 at the edge has two give-away grooves 12. The driven plate 11 of the counterweight ring 1 with one give-away groove 12 penetrates one give-away groove 12 of the counterweight ring 1 at the edge position to the outside of the counterweight ring 1 at the edge position. The driven plate 11 of the counterweight ring 1 without a give-away groove 12 sequentially penetrates one give-away groove 12 of the counterweight ring 1 with one give-away groove 12 and another give-away groove 12 of the counterweight ring 1 at the edge position to the outside of the counterweight ring 1 at the edge position. This structural design facilitates the counterweight housing 2 to flexibly remove rings and balance weights.

[0070] Alternatively, as Figure 12 As shown, when multiple counterweight rings 1 are sequentially installed from the inside out, they are all arranged on the first plane 32. One end of the ring removal plate 22 is fixedly connected to the cavity wall of the assembly cavity 21, and the other end of the ring removal plate 22 is arranged toward the axis of the counterweight housing 2. The ring removal plate 22 is located at the cavity opening of the assembly cavity 21. This arrangement facilitates the removal of the counterweight rings 1.

[0071] Alternatively, as Figure 13 As shown, at least one block-shaped linkage member 14 is provided between each of two adjacent counterweight rings 1. In each of the two adjacent counterweight rings 1, one end of the linkage member 14 is located at the outer edge of the counterweight ring 1 at the center, while the other end of the linkage member 14 is able to contact the inner edge of the counterweight ring 1 at the edge.

[0072] like Figure 14 As shown, the present invention also discloses a system with a weight-adjustable counterweight device, which includes a fixed end 6 and a weight-adjustable counterweight device as described in any of the above optional embodiments. The counterweight housing 2 itself has weight, and can be directly sleeved on the fixed end 6 so that the fixed end 6 is located in the support sleeve 23. Of course, at least one counterweight ring 1 is set in the assembly cavity 21 of the counterweight housing 2, so that the weight adjustment of the counterweight housing 2 is completed, and the counterweight housing 2 after the weight adjustment is completed is sleeved on the fixed end 6. Both ends of the barbell can be regarded as the fixed end 6, or both ends of the dumbbell can be regarded as the fixed end 6, or the end of other fitness equipment that needs to be counterweighted for fixing the counterweight can be regarded as the fixed end 6.

[0073] Application scenario of an exemplary embodiment:

[0074] like Figures 1 to 11 、 Figure 14 As shown, the fixed seat 3 is placed on the ground, and multiple counterweight rings 1 are sequentially mounted from the outside to the inside, and the multiple counterweight rings 1 are conveniently placed on the fixed seat through the detachable connection between the clamping rod 31 and the counterweight ring 1. At this time, one end of the clamping rod 31 is located in the clamping hole 13 of the counterweight ring 1, and the positioning assembly 5 is arranged in the ring of the counterweight ring 1 located in the center. The counterweight shell is covered with multiple counterweight rings, which is convenient for the user to perform counterweighting and use when counterweighting is needed. When the counterweight shell is covered with multiple counterweight rings, the ring removal plate 22 on the support sleeve 23 enters the interlayer between the positioning disk 52 and the multiple limiting protrusions 54 for clamping and fixing. This design can prevent the counterweight ring 1 and the counterweight shell from slipping off the fixed seat and injuring others. At this time, the convex ridge 53 contacts the movable sleeve 41, and causes the movable sleeve 41 to squeeze the spring 42, and the spring 42 changes from a non-compressed state to a compressed state. At the same time, the movable sleeve 41 drives the auxiliary protrusion 43 to move along the movable hole 232, and the auxiliary protrusion 43 enters the movable groove 242 from the limiting groove 243, which facilitates the rotation of the counterweight housing.

[0075] When the user needs to balance weights, they simply rotate the weight housing 2 to a specific angle, which corresponds to the desired weight. For example, if the user rotates the weight housing 2 5°, the specific angle becomes 5°, corresponding to a single weight ring 1 located at the center. If one weight ring 1 is insufficient and the user determines that three weight rings are sufficient, they simply rotate the weight housing 2 further until the specific angle reaches 15°, corresponding to the single weight ring 1 located at the center and its two adjacent weight rings 1.

[0076] After the user completes the counterweighting, they only need to rotate the counterweight housing 2 and remove the ring-removing plate 22 from the gap between the two limiting protrusions 54. Due to the limiting effect of the ring-removing plate 22 on the driven plates 11 of the counterweight rings 1 located at the edge, the three counterweight rings are retained in the assembly cavity of the counterweight housing 2, and the counterweight housing is now counterweighted. After the counterweighting is completed, the counterweight housing is removed from the fixed seat 3. The movable sleeve 41 does not interfere with the ridges 53. At this time, the spring 42 returns to its original non-compressed state, and the auxiliary protrusion 43 enters the limiting groove 243 from the movable groove 242, preventing the counterweight housing from rotating. The driven plates 11 of the multiple counterweight rings 1 are all located in the notch 241 of the auxiliary sleeve 24, which acts as a limiting effect on the driven plates. At this time, the ring-removing plate 22 limits the driven plates 11 of the counterweight rings 1 located at the edge and prevents the multiple counterweight rings from slipping out of the assembly cavity of the counterweight housing.

[0077] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A weight-adjustable counterweight device, characterized in that: include: A plurality of counterweight rings (1), each of the counterweight rings (1) can be arranged on a first plane (32), the plurality of counterweight rings (1) are concentrically arranged in sequence, and a linkage member (14) is provided between two adjacent counterweight rings (1); A counterweight housing (2) having an assembly cavity (21) for accommodating the counterweight ring (1), wherein the counterweight housing (2) is detachably connected to a plurality of the counterweight rings (1); A ring removal assembly is provided between the counterweight housing (2) and the plurality of counterweight rings (1); the counterweight housing (2) retains at least one of the plurality of counterweight rings (1) in the assembly cavity (21) through the ring removal assembly; The linkage member (14) is block-shaped; In two adjacent counterweight rings (1), one end of the linkage member (14) is arranged at an inner edge position of the counterweight ring (1) at an edge position, and the other end of the linkage member (14) is movably connected to an outer edge position of the counterweight ring (1) at a center position; or, One end of the linkage member (14) is arranged at the outer edge of the counterweight ring (1) at the center, and the other end of the linkage member (14) is movably connected to the inner edge of the counterweight ring (1) at the edge. The ring-taking assembly comprises a ring-taking plate (22) and a driven plate (11); The counterweight housing (2) is provided with at least one ring-removing plate (22), and the ring-removing plate (22) is located at the cavity opening of the assembly cavity (21); Each of the counterweight rings (1) is provided with a driven plate (11), and the multiple driven plates (11) do not overlap with each other; The counterweight housing (2) is covered on a plurality of the counterweight rings (1) and rotated at a specific angle, and the ring-removing plate (22) on the counterweight housing (2) contacts the driven plate (11) of at least one of the counterweight rings (1) corresponding to the specific angle; as the counterweight housing (2) is removed from the plurality of the counterweight rings (1), the at least one counterweight ring (1) corresponding to the specific angle is retained in the assembly cavity (21) due to the limiting effect of the ring-removing plate (22) on the driven plate (11), and the counterweight housing (2) after weight adjustment is completed is arranged on the fixed end.

2. The weight-adjustable counterweight device according to claim 1, characterized in that: One end of the counterweight ring (1) is provided with a plurality of relief grooves (12), and the plurality of relief grooves (12) are evenly distributed around the axis of the counterweight ring (1).

3. The weight-adjustable counterweight device according to claim 2, characterized in that: The driven plates (11) of the plurality of counterweight rings (1) except the counterweight ring (1) located at the center all pass through the clearance groove (12) in sequence to the counterweight ring (1) located at the center.

4. The weight-adjustable counterweight device according to claim 3, characterized in that: A support sleeve (23) is provided in the assembly cavity (21), and the support sleeve (23) is located at the center of the assembly cavity (21); The ring removal plate (22) is arranged at one end of the support sleeve (23) away from the bottom of the assembly cavity (21).

5. The weight-adjustable counterweight device according to claim 4, characterized in that: An auxiliary sleeve (24) is further provided in the assembly cavity (21), and the auxiliary sleeve (24) is sleeved on the support sleeve (23) and located between the cavity bottom of the assembly cavity (21) and the ring removal plate (22); A notch (241) for accommodating the driven plate (11) is provided at one end of the auxiliary sleeve (24) away from the bottom of the assembly cavity (21).

6. The weight-adjustable counterweight device according to claim 5, characterized in that: The auxiliary sleeve (24) is provided with a movable groove (242), and the movable groove (242) is located at one end of the auxiliary sleeve (24) close to the notch (241); the notch (241) is communicated with the movable groove (242).

7. The weight-adjustable counterweight device according to claim 6, characterized in that: Also included is an auxiliary component (4), the auxiliary component (4) comprising: A movable sleeve (41) is arranged at a notch of the mounting groove (231) of the support sleeve (23); A spring (42) is disposed in the mounting groove (231) and is located between the movable sleeve (41) and the bottom of the mounting groove (231); An auxiliary protrusion (43) has one end disposed on the outer tube wall of the movable sleeve (41) and the other end passing through the movable hole (232) of the support sleeve (23) to the movable groove (242).

8. The weight-adjustable counterweight device according to claim 7, characterized in that: The plurality of counterweight rings (1) are all provided with a snap-fitting hole (13).

9. The weight-adjustable counterweight device according to claim 8, characterized in that: Also includes: A clamping rod (31) is arranged on the first plane (32); one end of the clamping rod (31) is movably connected to the clamping hole (13).

10. The weight-adjustable counterweight device according to claim 9, characterized in that: It also includes a positioning component (5), which includes: A positioning shaft (51) is arranged on the first plane (32); an end of the positioning shaft (51) away from the first plane (32) is movably connected to the lumen of the support sleeve (23); A positioning disk (52) is arranged on the positioning shaft (51); A convex rib (53) is provided on one side of the positioning plate (52) and is arranged around the positioning axis (51); A plurality of limiting protrusions (54) are evenly distributed along the edge of the positioning plate (52).

11. The weight-adjustable counterweight device according to claim 2, characterized in that: The driven plates (11) of the plurality of counterweight rings (1) except the counterweight ring (1) located at the edge all penetrate the clearance groove (12) to the outside of the counterweight ring (1) located at the edge; The ring-removing plate (22) is arranged on the cavity wall of the assembly cavity (21).

12. A system having a weight-adjustable counterweight device, characterized in that: include: The weight-adjustable counterweight device according to any one of claims 1 to 11.

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