Fitness weight stack and holding rod thereof

Abstract

The utility model relates to the field of fitness equipment, in particular to a fitness weight stack and a holding rod thereof, which comprise a cake body of the weight stack, a mounting hole arranged in the center of the cake body and anti-loosening mechanisms arranged on the cake body at two ends of the mounting hole. The anti-loosening mechanism comprises an inward-concave embedding groove and an outward-convex embedding body, the embedding groove and the embedding body are located on the two side walls of the cake body respectively, the radial section of the embedding groove coincides with the radial section of the embedding body, and the inward-concave depth of the embedding groove is the same as the outward-convex height of the embedding body. The embedding groove is not in a circular ring shape; according to the technical scheme, loosening can be prevented, and universality with existing common equipment is achieved. The protruding bodies on the check rings are matched with the embedding grooves in the cake bodies, the phenomenon that the weight stacks are loosened due to vibration can be avoided, the using effect of multiple weight stacks is not reduced, the weight stacks can be commonly used with existing barbell rods and dumbbell rods, and the holding rod can also be commonly used with existing weight stacks.

Description

Technical Field

[0001] The utility model relates to the field of fitness equipment, in particular to a fitness counterweight plate and its grip bar. Background Art

[0002] The demand for fitness equipment increases year by year, and the market inventory also increases year by year. With the large increase in users, the disadvantages of existing equipment in the market are gradually emerging. One part is the storage problem, and the other part is the use safety problem.

[0003] For example, in the case of the storage of counterweight plates, they are prone to rolling when placed upright and prone to tipping over when stacked, so a rack is used, which in turn becomes a new problem of occupying space. Due to the diameter of the counterweight plates, those for barbells are relatively large, while those for dumbbells are relatively small, and multiple facilities need to be prepared for storage, which is very inconvenient for home use.

[0004] The loosening of the counterweight plate during use is also a major hidden danger. Especially for users who have not received special training, they often ignore these details, leading to safety accidents during use. In professional gyms and training halls, due to the loosening of the counterweight plates, the sound of the counterweight plates hitting each other is often heard, which is also a bad experience and a hidden danger. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a fitness counterweight plate and its grip bar, aiming to improve the problems of convenient storage and non-loosening in the existing technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A fitness counterweight plate and its grip bar include a disc body, a mounting hole provided at the center of the disc body, a loosening prevention mechanism provided on the disc body at both ends of the mounting hole, and a grip used in cooperation, a threaded mounting portion fixedly provided at both ends of the grip, and a retaining ring provided between the grip and the mounting portion. The overall combination with the lock head forms a complete piece of equipment.

[0008] The loosening prevention mechanism includes an inwardly concave fitting groove and an outwardly convex fitting body. The fitting groove and the fitting body are respectively located on two side walls of the disc body, and the radial cross-sections of the fitting groove and the fitting body coincide. The inward concave depth of the fitting groove is the same as the outward convex height of the fitting body; the fitting groove is non-circular. A protruding body adapted to the fitting groove is provided on the outer edge of the retaining ring.

[0009] The protruding body on the outer edge of the retaining ring just fits into the fitting groove to form a radial lock, completely avoiding the impact on the lock head due to vibration, and thus avoiding loosening caused by the impact of the counterweight plate. Whether multiple counterweight plates are used or a single one is used on one side, fitting can be achieved to avoid axial rotation between them.

[0010] The radial cross-section of the fitting groove is a regular polygon, and the radial cross-section of the fitting body is a regular polygon. The radial cross-section of the protruding body is a regular polygon. Regular polygons are more aesthetically pleasing, and when fitting them, only a small angle adjustment is required, making it convenient to use.

[0011] The radial cross-section of the fitting groove is a regular hexagon, and the radial cross-section of the fitting body is a regular hexagon. The radial cross-section of the protruding body is a regular hexagon. The regular hexagon takes into account practicality, the angle adjustment during fitting, firmness, and durability. Having too many sides makes alignment more troublesome.

[0012] The axis of the radial cross-section of the fitting groove coincides with the axis of the mounting hole. The axis of the protruding body coincides with the axis of the grip, the axis of the grip coincides with the axis of the mounting part. After the grip rod and the counterweight plate are combined, the axis of the mounting part coincides with the axis of the mounting hole. The coincidence of multiple axes is not only convenient during processing but also more flexible and versatile during installation and use.

[0013] The outer edge of the radial cross-section of the disc body is a regular polygon, and it will not roll when placed upright.

[0014] The utility model has the following beneficial effects:

[0015] This technical solution can not only prevent loosening but also has compatibility with existing ordinary equipment. The cooperation between the protruding body on the retaining ring and the fitting groove on the disc body can prevent the counterweight plate from loosening due to vibration, and the effect of using multiple pieces can be maintained. Moreover, the counterweight plate is compatible with existing barbell rods and dumbbell rods, and the grip rod is also compatible with existing counterweight plates.

[0016] As Figure 1 、 2 shown, the multiple planes provided on the outer circumferential surface of the disc body can prevent the disc body of the counterweight plate from rolling when placed upright. When the counterweight disc body is placed flat, the protruding fitting body is inserted into the fitting groove of the upper counterweight plate, so that they will not slide relative to each other, and there is no need for excessive operation when taking and placing, and they can also be stacked in multiple layers, which is safe and reliable. Even small dumbbell counterweight plates can be stacked, and large and small plates can be stacked randomly, which is convenient and safe to use. Description of the Drawings

[0017] Figure 1 is a schematic side view of the counterweight plate of the utility model;

[0018] Figure 2 is a schematic cross-sectional view of the counterweight plate of the utility model;

[0019] Figure 3 is a schematic view of the grip rod structure of the utility model.

[0020] Legend: 1. Disc body; 2. Mounting hole; 3. Fitting groove; 4. Fitting body; 5. Grip; 6. Mounting part; 7. Retaining ring; 8. Protruding body. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0022] Referring to Figure 1 、 2 Figure 3, a fitness counterweight plate and its grip rod, the counterweight plate includes a disc body 1, a mounting hole 2 provided at the center of the disc body 1, and a loosening prevention mechanism provided on the disc body 1 at both ends of the mounting hole 2; the loosening prevention mechanism includes a concave fitting groove 3 and a convex fitting body 4, the fitting groove 3 and the fitting body 4 are respectively located on two side walls of the disc body 1, and the radial cross-sections of the fitting groove 3 and the fitting body 4 coincide, and the concave depth of the fitting groove 3 is the same as the convex height of the fitting body 4; the fitting groove 3 is non-circular. The grip rod includes a grip 5, threaded mounting parts 6 fixedly provided at both ends of the grip, and a retaining ring 7 provided between the grip 5 and the mounting part 6; a protrusion 8 adapted to the fitting groove 3 is provided on the outer edge of the retaining ring 7. The fitting body 4 is stuck in the fitting groove 3, and the volume of the convex body of the fitting body 4 and the concave space of the fitting groove 3 is the same. The purpose of preventing the counterweight plate from rotating axially is achieved. Therefore, as long as the outer contours of the radial cross-sections of the two are non-circular, they can be single-synaptic teeth, multiple symmetric or asymmetric teeth, protrusions, etc. An ellipse or a circle deviating from the axis of the grip can achieve this function. However, a concentric regular polygon is the most beautiful and suitable. Therefore, when the radial cross-section of the fitting groove 3 is a regular polygon, the radial cross-section of the fitting body 4 is also a regular polygon.

[0023] Among regular polygons with more than three sides, when the radial cross-section of the fitting groove 3 is a regular hexagon, the radial cross-section of the protrusion 8 is a regular polygon. As Figure 1 shown, it is the most suitable in terms of aesthetics, use, and processing. Therefore, the radial cross-section of the fitting body 4 is also a regular hexagon, so that the radial cross-section of the protrusion 8 is also a regular hexagon. When the whole device is in use, generally paired counterweight plates are respectively fixed to the mounting parts 6 at both ends of the grip rod through lock heads. As Figure 3 shown, so it is a rod, paired counterweight plates, and then fixed with lock heads at both ends to be used. Therefore, in the installed state, the axis of the radial cross-section of the fitting groove 3 coincides with the axis of the mounting hole 2. The axis of the protrusion 8 coincides with the axis of the grip 5, the axis of the grip 5 coincides with the axis of the mounting part 6. After the grip rod and the counterweight plate are combined, the axis of the mounting part 6 coincides with the axis of the mounting hole 2.

[0024] When processing the counterweight disc body 1, a continuous plane is provided on the outer circumference of the disc body 1. Generally, there are 20 - 42 planes for large pieces and 10 - 19 planes for small pieces, which can be set according to the diameter of the counterweight. It should not be too few, because if there are too few, the angle between two adjacent planes will be too sharp and the overall shape of the counterweight will not be round enough. Nor should it be too many, because if there are too many, the angle between two adjacent planes will be too large and the contact area with the ground will become smaller, resulting in a smaller rolling resistance. Therefore, the outer edge of the radial cross-section of the counterweight disc body 1 is a regular polygon.

[0025] It should be noted that the counterweights in this technical solution can be sold separately to be used in conjunction with existing ordinary barbell rods and dumbbell rods. The grip rods in this solution can also be sold separately to match existing ordinary counterweights. The lock used after combining this solution is common to the national standard instruments in the existing market and can be sold separately or in combination, which does not affect the implementation of this solution.

[0026] The fitting groove 3, the fitting body 4 provided on the counterweight disc body 1 of this solution and the protruding body 8 provided on the outer edge of the retaining ring 7 are all ideas generated from the idea of preventing the counterweight from becoming loose due to impact. The above several structures cooperate with each other to achieve the technical effect.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fitness weight plate, characterized in that: It comprises a cake body (1), a mounting hole (2) arranged at the center of the cake body (1), and anti-loosening mechanisms arranged on the cake body (1) at both ends of the mounting hole (2); The anti-loosening mechanism comprises an inner concave engaging groove (3) and an outer convex engaging body (4); the engaging groove (3) and the engaging body (4) are respectively located on two side walls of the cake body (1); the radial cross-sections of the engaging groove (3) and the engaging body (4) coincide; the inner concave depth of the engaging groove (3) is the same as the outer convex height of the engaging body (4); and the engaging groove (3) is not in the shape of a circular ring.

2. A fitness weight plate according to claim 1, characterized in that: The radial cross section of the engaging groove (3) is a regular polygon, and the radial cross section of the engaging body (4) is a regular polygon.

3. A fitness weight plate according to claim 2, characterized in that: The radial cross section of the engaging groove (3) is a regular hexagon, and the radial cross section of the engaging body (4) is a regular hexagon.

4. A fitness weight plate according to claim 3, characterized in that: The radial cross-sectional axis of the engaging groove (3) coincides with the axis of the mounting hole (2).

5. A fitness weight plate according to claim 1, characterized in that: The outer edge of the radial cross section of the cake body (1) is a regular polygon.

6. A grip, characterized in that: It comprises a handle (5), threaded mounting portions (6) fixedly arranged at both ends of the handle, and a retaining ring (7) arranged between the handle (5) and the mounting portion (6); the retaining ring (7) is provided with a protrusion (8) on the outer edge thereof that is compatible with the engaging groove (3) according to any one of claims 1 to 4.

7. A grip according to claim 6, characterized in that: The radial cross section of the protrusion (8) is a regular polygon.

8. A grip according to claim 7, characterized in that: The radial cross section of the protrusion (8) is a regular hexagon.

9. A grip according to claim 8, characterized in that: The axis of the protrusion (8) coincides with the axis of the handle (5), the axis of the handle (5) coincides with the axis of the mounting portion (6), and after the handle and the weight plate are assembled, the axis of the mounting portion (6) coincides with the axis of the mounting hole (2).

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