Quick weight insertion and extraction device for dumbbell

Abstract

The utility model belongs to the technical field of dumbbells, and particularly relates to a dumbbell weight quick inserting and pulling device which comprises a dumbbell rod, limiting plates are fixedly installed on the left side and the right side of the surface of the dumbbell rod, dumbbell pieces are movably installed on the surface of the dumbbell rod, and movable blocks are movably installed on one sides of the dumbbell pieces. And inserting holes are formed in the top of the dumbbell rod and the upper side and the lower side of the surface of the movable block correspondingly, and inserting rods are movably installed in the inserting holes. After the dumbbell pieces of different numbers are arranged on the dumbbell rod in a sleeving mode, the movable blocks can be arranged on the dumbbell rod in a sleeving mode, the movable plates pull the movable discs, the movable rods and the telescopic springs to move, then the inserting rods are inserted into the inserting holes through the fixing rods, then the movable plates are loosened, and the dumbbell pieces can be inserted into the inserting holes through the resilience force of the telescopic springs. And the movable rods can be conveniently rebounded and inserted into the connecting holes, so that different numbers of dumbbell pieces can be conveniently fixed between the movable blocks and the limiting plates, and the dumbbell pieces can be conveniently and rapidly inserted, pulled and fixed.

Description

Technical Field

[0001] This utility model belongs to the field of dumbbell technology, specifically relating to a dumbbell weight quick insertion and removal device. Background Technology

[0002] Dumbbells are a simple piece of equipment used for muscle strength training. They are primarily made of cast iron, and some are coated with rubber. Their purpose is for muscle strength training and compound muscle movement exercises. Patients with low muscle strength due to paralysis, pain, or prolonged inactivity can use dumbbells to perform active resistance exercises, thus training their muscle strength. Using dumbbells scientifically can indeed yield excellent training results.

[0003] Depending on the user's needs, dumbbells require different weights. Dumbbells that are too light will not produce good training results. Different weights of dumbbells are achieved by installing different numbers of dumbbell plates. However, after the dumbbell plates are installed, they need to be fixed to the dumbbell bar. Existing dumbbells have the problem of not being able to quickly insert and remove the dumbbell plates from the dumbbell bar. The problem that this device addresses is how to make it easy to quickly insert and remove the dumbbell plates from the dumbbell bar. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a quick insertion and removal device for dumbbell weights, which solves the problem of how to quickly insert and remove dumbbell plates from the dumbbell bar.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dumbbell weight quick insertion and removal device, comprising a dumbbell bar, with limit plates fixedly installed on both the left and right sides of the dumbbell bar surface, dumbbell plates movably installed on the surface of the dumbbell bar, a movable block movably installed on one side of the dumbbell plates, insertion holes provided on the top of the dumbbell bar and on the upper and lower sides of the movable block surface, insertion rods movably installed inside the insertion holes, a fixing rod fixedly installed at the top of the insertion rod, connecting holes provided in the middle of the insertion rod and on both the left and right sides of the movable block, movable rods movably installed inside the connecting holes, a movable disc fixedly installed at one end of the movable rod, a telescopic spring fixedly installed on one side of the movable disc, and one end of the telescopic spring fixedly connected to the surface of the movable block, and a movable plate fixedly installed on the surface of the movable disc.

[0006] Preferably, the dumbbell plates are in the shape of regular octagons, and there are multiple dumbbell plates, which are arranged linearly on the surface of the dumbbell bar.

[0007] Preferably, a rubber protective strip is fixedly installed on the surface of the dumbbell plate, and the thickness of the rubber protective strip is 1cm.

[0008] Preferably, a rubber rod is fixedly installed in the middle of the surface of the dumbbell bar, and multiple rubber rods are provided, and the multiple rubber rods are arranged in a circle on the surface of the dumbbell bar.

[0009] Preferably, there are two limiting plates, which are symmetrically arranged on the surface of the dumbbell bar and are disc-shaped.

[0010] Preferably, connecting blocks are fixedly installed at both ends of the dumbbell bar, and the connecting blocks are frustum-shaped and symmetrical to each other at both ends of the dumbbell bar.

[0011] Preferably, the surfaces of the dumbbell bar, dumbbell plates, limiting plate, movable plate, movable block, fixed rod, plug rod, connecting block, movable rod, movable disc, and telescopic spring are all coated with anti-rust paint.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] After mounting different numbers of dumbbell plates onto the dumbbell bar, a movable block can be mounted on the dumbbell bar. The movable plate, movable rod, and telescopic spring are moved by pulling the movable plate. Then, the insertion rod is inserted into the insertion hole through the fixed rod. The movable plate is then released, and the elastic force of the telescopic spring allows the movable rod to spring back and insert into the connection hole, thus fixing different numbers of dumbbell plates between the movable block and the limiting plate, facilitating quick insertion and removal of the dumbbell plates. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a first three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a second three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is an internal sectional view of the fixing box of this utility model.

[0018] In the diagram: 1. Dumbbell bar; 2. Dumbbell plate; 3. Limiting plate; 4. Rubber bar; 5. Movable plate; 6. Movable block; 7. Fixed rod; 8. Rubber protective strip; 9. Plug-in rod; 10. Connecting block; 11. Movable rod; 12. Movable disc; 13. Telescopic spring. Detailed Implementation

[0019] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 This utility model provides the following technical solution: a dumbbell weight quick insertion and removal device, including a dumbbell bar 1, with limit plates 3 fixedly installed on both the left and right sides of the surface of the dumbbell bar 1, dumbbell plates 2 movably installed on the surface of the dumbbell bar 1, a movable block 6 movably installed on one side of the dumbbell plates 2, insertion holes are provided on the top of the dumbbell bar 1 and the upper and lower sides of the surface of the movable block 6, insertion rods 9 are movably installed inside the insertion holes, a fixing rod 7 is fixedly installed on the top of the insertion rod 9, connection holes are provided in the middle of the insertion rod 9 and on both the left and right sides of the movable block 6, movable rods 11 are movably installed inside the connection holes, a movable disc 12 is fixedly installed on one end of the movable rod 11, a telescopic spring 13 is fixedly installed on one side of the movable disc 12, and one end of the telescopic spring 13 is fixedly connected to the surface of the movable block 6, and a movable plate 5 is fixedly installed on the surface of the movable disc 12.

[0021] When using the device, after mounting different numbers of dumbbell plates 2 onto the dumbbell bar 1, the movable block 6 can be mounted on the dumbbell bar 1. The movable plate 5 pulls the movable disc 12, movable rod 11, and telescopic spring 13, causing the telescopic spring 13 to elastically deform. Then, the insertion rod 9 is inserted into the insertion hole via the fixing rod 7. After releasing the movable plate 5, the rebound force of the telescopic spring 13 allows the movable rod 11 to easily rebound and insert into the connection hole, thus securing different numbers of dumbbell plates 2 to the movable block 6 and the limiting plate 3. The arrangement of the dumbbell plates 2 facilitates quick insertion and removal, increasing the ease of use of the device. The rubber bars 4, arranged circumferentially on the surface of the dumbbell bar 1, increase friction, preventing slippage. The two limiting plates 3, symmetrically positioned on the surface of the dumbbell bar 1 and disc-shaped, prevent movement of the dumbbell plates 2. The device features multiple dumbbell plates 2 arranged linearly on the surface of the dumbbell bar 1, allowing for the installation of dumbbells of varying weights. Furthermore, the octagonal shape of the dumbbell plates 2, compared to traditional round dumbbell plates, makes them less prone to rolling on the ground. The 1cm thick rubber protective strip 8 reduces noise from impacts when the dumbbells are placed on the ground and prevents damage to the floor, thus improving performance. The lifting device is designed for protection. The connecting block 10 is symmetrically positioned at both ends of the dumbbell bar 1 and is frustoconical in shape, facilitating the mounting of the dumbbell plates 2 and the movable block 6 onto the surface of the dumbbell bar 1. Furthermore, the rust-proof paint coating applied to the surfaces of the dumbbell bar 1, dumbbell plates 2, limiting plate 3, movable plate 5, movable block 6, fixing rod 7, plug rod 9, connecting block 10, movable rod 11, movable disc 12, and telescopic spring 13 prevents rust formation and extends the device's lifespan.

[0022] In one aspect of this embodiment, since multiple dumbbell plates 2 are provided and are linearly arranged on the surface of the dumbbell bar 1, it is convenient to install dumbbells of different weights. Moreover, since the dumbbell plates 2 are regular octagonal, compared with traditional round dumbbell plates, the regular octagonal dumbbell plates 2 in this device are less likely to roll on the ground. As for the rubber protective strip 8, since the thickness of the rubber protective strip 8 is 1cm, when the dumbbell is placed on the ground, the rubber protective strip 8 can reduce the sound generated by the dumbbell colliding with the ground, and the rubber protective strip 8 can prevent the dumbbell plates 2 from damaging the ground, which helps to improve the protective performance of the device.

[0023] In one aspect of this embodiment, the arrangement of the rubber bars 4, with multiple rubber bars 4 arranged circumferentially on the surface of the dumbbell bar 1, facilitates the increase of friction on the surface of the dumbbell bar 1, making it less likely for the user to slip when holding the dumbbell bar 1. As for the setting of the limiting plates 3, with two limiting plates 3 arranged symmetrically on the surface of the dumbbell bar 1, and with the limiting plates 3 being disc-shaped, it can prevent the dumbbell plates 2 from moving on the surface of the dumbbell bar 1.

[0024] In one aspect of this embodiment, the connection block 10 is symmetrically positioned at both ends of the dumbbell bar 1 and is frustoconical in shape, which facilitates the mounting of the dumbbell plate 2 and the movable block 6 onto the surface of the dumbbell bar 1. The anti-rust paint coating applied to the surfaces of the dumbbell bar 1, dumbbell plate 2, limiting plate 3, movable plate 5, movable block 6, fixing rod 7, plug rod 9, connection block 10, movable rod 11, movable disc 12, and telescopic spring 13 prevents the device from rusting, thus extending its service life.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dumbbell weight quick-release device, comprising a dumbbell bar (1), characterized in that: Limiting plates (3) are fixedly installed on both the left and right sides of the surface of the dumbbell bar (1). Dumbbell plates (2) are movably installed on the surface of the dumbbell bar (1). A movable block (6) is movably installed on one side of the dumbbell plates (2). Insertion holes are provided on the top of the dumbbell bar (1) and on the upper and lower sides of the surface of the movable block (6). Insertion rods (9) are movably installed inside the insertion holes. A fixing rod (7) is fixedly installed at the top of the insertion rod (9). Connection holes are provided in the middle of the insertion rod (9) and on both the left and right sides of the movable block (6). Movable rods (11) are movably installed inside the connection holes. A movable disc (12) is fixedly installed at one end of the movable rod (11). A telescopic spring (13) is fixedly installed on one side of the movable disc (12), and one end of the telescopic spring (13) is fixedly connected to the surface of the movable block (6). A movable plate (5) is fixedly installed on the surface of the movable disc (12).

2. The dumbbell weight quick-release device according to claim 1, characterized in that: The dumbbell plates (2) are in the shape of regular octagons, and there are multiple dumbbell plates (2), which are arranged linearly on the surface of the dumbbell bar (1).

3. The dumbbell weight quick-release device according to claim 1, characterized in that: A rubber protective strip (8) is fixedly installed on the surface of the dumbbell plate (2), and the thickness of the rubber protective strip (8) is 1cm.

4. The dumbbell weight quick-release device according to claim 1, characterized in that: A rubber rod (4) is fixedly installed in the middle of the surface of the dumbbell bar (1), and multiple rubber rods (4) are provided, and the multiple rubber rods (4) are arranged in a circle on the surface of the dumbbell bar (1).

5. The dumbbell weight quick-release device according to claim 1, characterized in that: There are two limiting plates (3), and the two limiting plates (3) are symmetrically arranged on the surface of the dumbbell bar (1), and the limiting plates (3) are disc-shaped.

6. The dumbbell weight quick-release device according to claim 1, characterized in that: The dumbbell bar (1) has connecting blocks (10) fixedly installed at both ends, and the connecting blocks (10) are in the shape of a frustum, and the connecting blocks (10) are symmetrical to each other at the left and right ends of the dumbbell bar (1).

7. A dumbbell weight quick-release device according to claim 6, characterized in that: The surfaces of the dumbbell bar (1), dumbbell plate (2), limiting plate (3), movable plate (5), movable block (6), fixed rod (7), plug rod (9), connecting block (10), movable rod (11), movable disc (12) and telescopic spring (13) are all coated with anti-rust paint.

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