Dumbbell rod capable of preventing dumbbell pieces from loosening
By installing preload pads and a support structure on the dumbbell bar, the problems of loosening and abnormal noise during use are solved, achieving a stable connection of the dumbbell plates and reducing abnormal noise.
Patent Information
- Application Number
- CN202422753089.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-11-12
AI Technical Summary
The counterweights and bolts in existing dumbbells are prone to loosening during use, leading to abnormal noises from impacts.
The system employs a pre-tightening pad and a support structure. The curved surface of the pre-tightening pad presses against the inner wall of the counterweight and bolts, combined with rubber pads or nylon cloth materials, to prevent loosening.
It effectively prevents dumbbell plates from loosening during use, avoids abnormal noises, and improves stability and comfort during use.
Smart Images
Figure CN223818110U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sports equipment technical field especially relates to a prevent dumbbell piece loose dumbbell pole. BACKGROUND
[0002] With the development of society, people pay more and more attention to their health, the daily exercise at home or the exercise at gymnasium has become the most common two kinds of exercise ways of the majority of exercisers, especially at home, the most commonly used fitness equipment is treadmill and dumbbell.
[0003] Especially domestic dumbbell, most commonly use, the existing dumbbell is all with counterweight piece installation on dumbbell pole, then utilize bolt and pre-tighten, but because counterweight block, bolt are rigid, like this in the use process easy loose and thus produce collision abnormal sound. SUMMARY
[0004] The utility model discloses a kind of dumbbell poles for preventing dumbbell piece loose, to solve the following shortcomings in prior art, because counterweight block, bolt are rigid, like this in the use process easy loose and thus produce collision abnormal sound.
[0005] To achieve the above object, the utility model adopts the following technical scheme:
[0006] A kind of dumbbell pole for preventing dumbbell piece loose, including pole body, the both ends of the pole body are fixedly connected with counterweight rod, the connecting place of the counterweight rod and pole body is installed with stopper, the counterweight rod is hollowly arranged, the both sides of the counterweight rod are provided with through slot, pre-tightening pad is installed on each through slot, the side of the pre-tightening pad is arranged as arc surface, the counterweight rod is installed with top, the top is on the arc surface of pre-tightening pad, the connecting mode between the counterweight rod and pole body is one of integrally formed or threaded connection.
[0007] Preferably, the arc surface of the pre-tightening pad is installed with gasket, the gasket is made of metal material.
[0008] Preferably, the bottom of the top is provided with arc-shaped end face arranged as circular arc.
[0009] Preferably, at least two grip sleeves are installed on the pole body, the surface of the pole body is provided with anti-skid lines, and the inner side of the grip sleeve and the anti-skid lines are in close contact.
[0010] Compared with the prior art, the utility model has the advantages that:
[0011] After installing counterweight block and bolt, the inner side wall of counterweight block and bolt is extruded by pre-tightening pad, so that the bolt and counterweight block do not loosen during exercise, and abnormal sound is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 This is a top view schematic diagram of a dumbbell bar for preventing dumbbell plates from loosening, as proposed in this utility model.
[0013] Fig. 2 This is a magnified view of a portion of the preload pad;
[0014] Fig. 3 This is a magnified view of a portion of the top column.
[0015] In the diagram: 1. Rod body, 2. Grip, 3. Stop block, 4. Counterweight rod, 5. Top post, 6. Preload pad, 7. Washer, 8. Arc-shaped end face. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0017] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.
[0018] Reference Figs. 1-3 A dumbbell bar for preventing dumbbell plates from loosening includes a bar body 1, with counterweight bars 4 fixedly connected to both ends of the bar body 1. A stop block 3 is installed at the connection between the counterweight bar 4 and the bar body 1. The counterweight bar 4 is hollow, with through slots on both sides. A preload pad 6 is installed in each through slot, with one side of the preload pad 6 having an arc-shaped surface. A retainer 5 is installed inside the counterweight bar 4, abutting against the arc-shaped surface of the preload pad 6. The shape of the center hole of the counterweight bar matches that of the counterweight bar 4. Install the counterweight on the counterweight rod 4, and then pre-tighten it with bolts. The counterweight and the pre-tightening pad 6 are in contact with the end face away from the arc surface. After installation, insert the pusher 5 into the hollow part of the counterweight rod 4. The pusher 5 will then squeeze the pre-tightening pad 6, pressing it against the inside of the bolt and the counterweight. The pre-tightening pad 6 is made of materials such as rubber pads and nylon cloth, so that the counterweight and bolt will not loosen and avoid abnormal noise.
[0019] A gasket 7 is installed on the arc-shaped surface of the pre-tightening pad 6. The gasket 7 is made of metal. The bottom end of the support 5 has arc-shaped end faces 8 on both sides. The metal material includes, but is not limited to, common metals such as iron, aluminum, and copper. Metal is used because metal can be deformed and has a smooth surface. This makes it easier for the support 5 to enter the counterweight rod 4 and to compress the arc-shaped surface of the pre-tightening pad 6.
[0020] At least two grips 2 are installed on the bar body 1. The surface of the bar body 1 is provided with anti-slip texture. The inner side of the grip 2 is in close contact with the anti-slip texture. The grip 2 can play a cushioning role. Moreover, the appropriate position of the grip 2 can be selected according to the exerciser's needs for exercise.
[0021] The connection between the counterweight rod 4 and the rod body 1 can be either integral molding or threaded connection. Integral molding can save costs and is more robust, while threaded connection makes it easy to disassemble and carry.
[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.
[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A dumbbell bar for preventing dumbbell plates from loosening, comprising a bar body (1), wherein counterweight rods (4) are fixedly connected to both ends of the bar body (1), and a stop (3) is installed at the connection between the counterweight rods (4) and the bar body (1), characterized in that, The counterweight rod (4) is hollow inside. Through slots are provided on both sides of the counterweight rod (4). A pre-tightening pad (6) is installed on each through slot. One side of the pre-tightening pad (6) is arc-shaped. A support (5) is installed inside the counterweight rod (4). The support (5) abuts against the arc-shaped surface of the pre-tightening pad (6). The connection between the counterweight rod (4) and the rod body (1) is either integrally formed or threaded.
2. A dumbbell bar for preventing dumbbell plates from loosening according to claim 1, characterized in that, A gasket (7) is mounted on the arc-shaped surface of the pre-tightening pad (6), and the gasket (7) is made of metal material.
3. A dumbbell bar for preventing dumbbell plates from loosening according to claim 1, characterized in that, The bottom end of the support (5) is provided with arc-shaped end faces (8) on both sides.
4. A dumbbell bar for preventing dumbbell plates from loosening according to claim 1, characterized in that, At least two grips (2) are installed on the rod (1), and the surface of the rod (1) is provided with anti-slip texture. The inner side of the grip (2) is in close contact with the anti-slip texture.