A dumbbell plate

Abstract

The utility model belongs to fitness equipment technical field, and specifically points to a dumbbell piece, including annular flexible main part, the side of flexible main part is provided with perfusion channel, and perfusion channel communicates the inner chamber and outside of flexible main part, the plug can seal perfusion channel and form the filling space of closure, the filler can enter the filling space through perfusion channel, the inner chamber of flexible main part can be inflated, and let the filling space keep the state of swelling, including both sides of clamping plate, both sides of clamping plate are located at both sides of flexible main part, and both sides of clamping plate are mutually fixed and extrude flexible main part, let flexible main part keep lamella shape. The utility model provides a kind of flexible lamella dumbbell piece with support.

Description

Technical Field

[0001] This utility model belongs to the field of fitness equipment technology, and specifically refers to a dumbbell plate. Background Technology

[0002] With the continuous improvement of people's living standards, the desire for fitness and health is also growing stronger, requiring the use of various fitness equipment. Fitness equipment is often categorized by the number of training functions, into two main types: single-function and multi-functional. Dumbbells, as a type of fitness equipment, are widely used. Currently, most dumbbells on the market are made of pure metal, with different weight specifications to meet different training requirements. Some products also allow for weight changes by replacing different dumbbell plates, thus meeting the actual needs of trainees. With the evolution of dumbbell products, and considering the actual needs of users, some dumbbells are now designed with soft materials or have a plastic or rubber layer covering cast iron dumbbells. This changes the external softness to avoid injury to the body or surrounding equipment during exercise. Furthermore, the internal filling can be replaced as needed to adapt to the unique needs of male or female exercisers.

[0003] For example, Chinese Patent 2024231464092 discloses a dumbbell plate and the dumbbell thereof. It includes a flexible body with a through hole in the center and an injection channel on the side, connecting the inner cavity of the flexible body to the outside. A plug seals the injection channel, forming a closed filling space. Filler can enter the filling space through the injection channel; the filling space is not completely filled, and the filler can move within the filling space. The inner cavity of the flexible body can be inflated through the injection channel, keeping the filling space in an expanded state. This product provides a relatively good flexible dumbbell, but it also has some shortcomings: the dumbbell is entirely flexible, and after inflation, its width is relatively large, making it unable to maintain a thin plate shape. The overall flexible dumbbell plate has poor lateral stability when mounted on a handle. Summary of the Invention

[0004] The purpose of this invention is to provide a flexible, thin, sheet-like dumbbell plate with support.

[0005] The purpose of this utility model is achieved as follows:

[0006] A dumbbell plate includes a ring-shaped flexible body with an injection channel on its side, the injection channel connecting the inner cavity of the flexible body to the outside; a plug can seal the injection channel and form a closed filling space; filler can enter the filling space through the injection channel; the inner cavity of the flexible body can be inflated, and the filling space can be kept in an expanded state.

[0007] It includes two side clamps, which are located on both sides of the flexible body. The two side clamps fix each other and compress the flexible body, keeping the flexible body in a sheet shape.

[0008] Furthermore, a cylinder is provided in the middle of the clamping plate, and the clamping plates on both sides are fixed to each other. The cylinder is kept in the middle through hole of the annular body, and the cylinder supports the middle of the dumbbell plate.

[0009] Furthermore, the clamps on both sides are respectively provided with a first cylinder and a second cylinder that are connected to each other. The first cylinder and the second cylinder are connected by snap-fit, threaded connection or tight fit.

[0010] Furthermore, the opening of the cylinder is provided with an arc-shaped portion.

[0011] Furthermore, the arc-shaped portion is provided on only one side of the two openings on the cylinder.

[0012] Furthermore, the filler does not completely fill the filling space, and the filler can move within the filling space; an integrally formed flexible traction section is provided between the flexible main bodies, and the flexible traction section restricts the lateral expansion of the flexible main bodies.

[0013] Furthermore, the flexible traction section has a perforation in the middle.

[0014] Furthermore, the clamps on both sides are equipped with locking positioning posts, which are located inside the perforations of the flexible traction section.

[0015] Furthermore, the clamp does not completely cover the sides of the flexible body; the periphery of the flexible body is located outside the clamp.

[0016] Furthermore, the flexible body located on the outside of the clamp expands outward and rises above the clamp after being inflated; when two adjacent dumbbell plates come into contact with each other, the two flexible bodies abut against each other.

[0017] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0018] 1. The purpose of the clamps in this utility model is as follows: a) The clamps on both sides compress the flexible body, making the dumbbell plates appear as thin sheets. b) The middle part of the two clamps has a cylindrical body that covers the flexible body. The central cylindrical body is used to install the external handle bar, preventing the flexible body from contacting the handle bar and avoiding wear on the flexible body; the cylindrical body supports the middle part of the dumbbell plates, and the rigid cylindrical body has a better supporting effect, making it more stable when multiple dumbbell plates are threaded on the handle bar. c) The clamps do not completely cover the sides of the flexible body, and the periphery of the flexible body is located outside the clamps; the dumbbell plates still have a flexible effect.

[0019] 2. The flexible main body located on the outside of the clamp plate expands outward and protrudes above the clamp plate after inflation. If the dumbbell plates accidentally fall, the flexible main body will contact the ground or the human body, providing a good cushioning effect. Furthermore, when multiple dumbbell plates are installed on the handle bar, the two flexible main bodies abut against each other when two adjacent dumbbell plates are pressed together, making it difficult for the dumbbell plates to rotate laterally and resulting in a tighter connection that is less prone to loosening.

[0020] 3. The flexible main body of this utility model is provided with an integrally formed flexible traction section. The purpose of providing the flexible traction section is: a) The flexible traction section restricts the lateral expansion of the flexible main body, allowing the flexible main body to remain in a sheet-like shape. b) Utilizing the traction force of the flexible traction section, damage caused by uneven local stress or excessive stress can be avoided, thereby increasing the strength of the flexible main body. Attached Figure Description

[0021] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0022] Figure 2 This is the second structural schematic diagram of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of Embodiment 1 of this utility model;

[0024] Figure 4 This is one of the exploded structural diagrams of Embodiment 1 of this utility model;

[0025] Figure 5 This is the second exploded structural diagram of Embodiment 1 of this utility model;

[0026] Figure 6 This is a schematic diagram of the internal structure of Embodiment 2 of this utility model;

[0027] Figure 7 yes Figure 6 A magnified structural diagram at point A;

[0028] Figure 8 This is one of the exploded structural diagrams of Embodiment 2 of this utility model;

[0029] Figure 9 This is the second exploded structural diagram of Embodiment 2 of this utility model.

[0030] In the diagram: 1-Flexible main body; 10-Filling space; 11-Flexible traction section; 19-Injection channel; 20-Mounting hole; 21-Clamping plate a; 211-First cylinder; 212-First positioning post; 219-Arc-shaped part; 22-Clamping plate b; 221-Second cylinder; 222-Second positioning post; 3-Plug; 31-Positioning plug;

[0031] L - Gap between the flexible body and the clamping plate. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Figure 1-9 As shown:

[0033] A dumbbell plate includes a ring-shaped flexible body 1. A filling channel 19 is provided on the side of the flexible body 1, connecting the inner cavity of the flexible body 1 to the outside. A plug 3 seals the filling channel 19, forming a closed filling space 10. Filler material can enter the filling space through the filling channel. The inner cavity of the flexible body can be inflated, keeping the filling space in an expanded state. The filler material can be common counterweights such as sand, iron filings, rubber, or liquids. Manufacturers can fill the flexible body 1 with different weights of filler material according to actual requirements. The installation of the plug 3 is not the focus of this application; therefore, for the sake of specific description, the installation method of the plug 3 can refer to the following: a positioning plug 31 is provided in the filling channel. The positioning plug is preferably a hollow tube, with a channel for installing the plug in the middle. The positioning plug 31 is tightly connected to the flexible body to form a whole. Preferably, the positioning plug and the flexible body are heat-fused together during the manufacturing process. The hardness of the positioning plug is greater than that of the flexible body. The positioning plug is rigid under normal conditions, so a flexible plug can seal the channel in the middle of the positioning plug.

[0034] The system includes two side clamps, located on either side of the flexible body 1. These clamps are fixed together and compress the flexible body, maintaining its sheet-like shape. The two side clamps are clamp a 21 and clamp b 22, made of rigid material. After clamp a 21 and clamp b 22 are fixed, they compress the flexible body 1, keeping it in a sheet-like shape. This sheet-like shape allows for better placement of the dumbbell plates on the external handle, enabling users to perform weight training. The sides of clamp a 21 and clamp b 22 can also be customized with patterns, textures, logos, etc., to enhance the product's aesthetics.

[0035] A cylindrical body is located in the middle of the clamping plate, with the two clamping plates fixed to each other. The cylindrical body is held within the central through hole of the annular main body, supporting the middle of the dumbbell plates. This cylindrical body is used to connect the external handle bar, which passes through the cylindrical body.

[0036] The opening of the cylinder is provided with an arc-shaped portion 219, which serves a guiding function, allowing the handle to be better aligned with the opening for installation. Preferably, the arc-shaped portion is provided on only one side of the opening on both sides of the cylinder. If arc-shaped portions are provided on both sides, the contact area between the cylinder and the handle may be insufficient, and the dumbbell plates may wobble. The arc-shaped portion is provided to increase the contact area and improve stability. Of course, if the chamfer of the arc-shaped portion is not large, arc-shaped portions can also be provided on both sides.

[0037] The filler does not completely fill the filling space 10, and the filler can move within the filling space; an integrally formed flexible traction section 11 is provided between the flexible bodies 1, which restricts the lateral expansion of the flexible bodies 1. In addition to strengthening the body and restricting excessive lateral expansion, the flexible traction section can also slow down the flow rate of the internal filler, reducing the discomfort caused by excessively fast flow of the filler. Of course, the slowing down of the filler flow rate is also related to the particle size of the filler and the number / width of the flexible traction sections, which are controlled by the manufacturer.

[0038] The flexible traction section 11 has a perforation in the middle, which increases the connecting surface of the flexible traction section, increases its strength, and facilitates production and processing.

[0039] The clamp does not completely cover the sides of the flexible body; the periphery of the flexible body lies outside the clamp. After the flexible body is inflated, the portion of the flexible body located outside the clamp expands outward and protrudes above the clamp, as shown below. Figure 3 and Figure 7 As shown, the gap between the flexible body and the clamp is L. If the dumbbell plates accidentally fall, the flexible body will contact the ground or the human body first, providing a good cushioning effect. Furthermore, when multiple dumbbell plates are installed on the handle, the two flexible bodies will abut against each other and deform when two adjacent dumbbell plates are pressed together, making it difficult for the dumbbell plates to rotate laterally and ensuring a tighter connection that is less prone to loosening.

[0040] Example 1: Clamping plates a 21 and b 22 are respectively provided with a first cylinder 211 and a second cylinder 221 that are connected to each other. The first cylinder 211 and the second cylinder 221 are connected by snap-fit, threaded connection or tight fit. The two interlocking first cylinders and second cylinders are fixed to each other to form a whole. During the process of fixing the two, the flexible body is compressed to maintain a thin sheet shape.

[0041] Example 2: The difference between Example 2 and Example 1 lies in the installation method of the clamping plates on both sides. Clamping plates a21 and b22 are respectively provided with a first positioning post 212 and a second positioning post 222 for locking. Both the first positioning post 212 and the second positioning post 222 are located within the through holes of the flexible traction section 11. By using the through holes of the flexible traction section as fixed positions, multiple points of fixation are achieved, making the connection between clamping plates a and b more stable, and the flexible body will not rotate relative to the clamping plates. In this example, the first cylinder and the second cylinder can be sleeved or tightly fitted, and the connection method of the first cylinder and the second cylinder is determined by the manufacturer.

[0042] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A dumbbell plate characterized by: It includes a ring-shaped flexible body, and an injection channel is provided on the side of the flexible body, which connects the inner cavity of the flexible body to the outside. The plug can seal the injection channel and form a closed filling space; the filler can enter the filling space through the injection channel; it can inflate the inner cavity of the flexible body and keep the filling space in an expanded state; It includes rigid clamps on both sides, which are located on both sides of the flexible body. The clamps on both sides fix each other and compress the flexible body, keeping the flexible body in a sheet shape.

2. The dumbbell plate of claim 1, wherein: A cylinder is provided in the middle of the clamp plate, and the clamp plates on both sides are fixed to each other. The cylinder is kept in the middle through hole of the annular body and supports the middle of the dumbbell plate.

3. The dumbbell plate of claim 2, wherein: The clamps on both sides are respectively provided with a first cylinder and a second cylinder that are connected to each other. The first cylinder and the second cylinder are connected by snap-fit, threaded connection or tight fit.

4. The dumbbell plate of claim 2 or 3, wherein: The opening of the cylinder is provided with an arc-shaped section.

5. The dumbbell handle of claim 4, wherein: The curved section is provided on only one side of the two openings on the cylinder.

6. The dumbbell piece of claim 1 or 2 or 3 or 5, wherein: The filler does not completely fill the filling space, and the filler can move within the filling space; an integrally formed flexible traction section is provided between the flexible main bodies, and the flexible traction section restricts the lateral expansion of the flexible main bodies.

7. The dumbbell weight of claim 6, wherein: The flexible traction section has a perforation in the middle.

8. The dumbbell plate of claim 7, wherein: The clamps on both sides are equipped with locking positioning posts, which are located inside the perforations of the flexible traction section.

9. The dumbbell piece of claim 1 or 2 or 3 or 5 or 7 or 8, wherein: The clamp does not completely cover the sides of the flexible body; the periphery of the flexible body is located outside the clamp.

10. The dumbbell plate of claim 9, wherein: The flexible body located on the outside of the clamp expands outward and rises above the clamp after being inflated; when two adjacent dumbbell plates come into contact with each other, the two flexible bodies abut against each other.

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