A combined dumbbell with quick adjustable weight

Abstract

The utility model relates to combined dumbbell technical field, and disclose a kind of combined dumbbell of quick weight adjustment, including placement block, the top of placement block is placed with weight adjusting mechanism, the inside movable joint of weight adjusting mechanism has dumbbell bar, the bottom fixed connection of placement block has length adjusting mechanism, the weight adjusting mechanism includes dumbbell piece, the top of placement block is placed with tool assembly;The utility model adjusts weight, the dumbbell piece needed is placed in placement block, second threaded hole and first limit plate are limited with support plate respectively, ensure the position of weight adjusting mechanism and each dumbbell piece, connect with connecting block by tool assembly after that, when rotating tool assembly, make connecting block drive threaded rod rotate in first threaded hole and second limit plate, and then make threaded rod connect support plate with second limit plate, quickly and firmly connect dumbbell piece with dumbbell bar.

Description

Technical Field

[0001] This utility model relates to the field of modular dumbbell technology, and more specifically to a modular dumbbell with quickly adjustable weight. Background Technology

[0002] In the field of strength training, dumbbells are core equipment, and their ease of use and efficiency directly affect the training experience and results. Traditional dumbbells mainly come in two forms: fixed-weight dumbbell sets and detachable barbell plates. While fixed dumbbell sets are sturdy and durable, covering the full range of training weights requires purchasing a large number of individual dumbbells, which is costly and takes up a lot of storage space. Detachable dumbbells, on the other hand, save space and cost by sharing the barbell bar and weight plates. However, the core pain point of detachable dumbbells is that the adjustment process is cumbersome and time-consuming. Users need to manually add or remove weight plates and fix them with clamps. A single weight change often takes several minutes, which seriously interrupts the high-intensity training rhythm, damages focus and heart rate maintenance, and leads to a decrease in training efficiency. This defect is amplified, especially in high-density circuit training or superset training. The current pressure system is quite cumbersome to adjust when changing weight. If a simple adjustment method is used, the adjusted dumbbell will not be stable enough, which poses a safety risk. In addition, the current pressure system cannot freely adjust the lever of different lengths. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a combination dumbbell with quickly adjustable weight to solve the problems existing in the background art.

[0004] This utility model provides the following technical solution: a combination dumbbell with quickly adjustable weight, including a placement block, a weight adjustment mechanism placed at the top of the placement block, a dumbbell rod movably connected inside the weight adjustment mechanism, and a length adjustment mechanism fixedly connected to the bottom of the placement block; the weight adjustment mechanism includes dumbbell plates, a tool assembly placed at the top of the placement block, and a first threaded hole and a clearance hole sequentially opened on both sides of the dumbbell plates from the inside to the outside, the first threaded hole and the clearance hole communicating with each other, a threaded rod threadedly connected inside the first threaded hole, a connecting block fixedly connected to the side of the threaded rod, and the connecting block located inside the clearance hole.

[0005] Furthermore, the dumbbell plates are placed sequentially on the placement block, with a first limiting plate fixedly connected to one side of each dumbbell plate, and the other side of each dumbbell plate being a smooth plane. A support plate is movably connected to the bottom end of the first limiting plate, and the bottom end of the support plate is fixedly connected to the top end of the placement block.

[0006] Furthermore, the dumbbell bar is fixedly connected with a second threaded hole, which is adapted to the support plate. Second limiting plates are provided on both sides inside the dumbbell bar, and the second limiting plates are interconnected with the support plate.

[0007] Furthermore, the tool assembly includes a rotatable and fixed handwheel, a connecting rod is fixedly connected to the side of the handwheel, a cross plate is fixedly connected to the side of the connecting rod away from the handwheel, and a cross hole adapted to the cross plate is opened on the side of the connecting block away from the threaded rod.

[0008] Furthermore, the length adjustment mechanism includes a limiting groove for limiting support, a bidirectional screw is movably connected inside the limiting groove, and an adjusting wheel is fixedly connected to the side of the bidirectional screw, with the adjusting wheel located on the side of the limiting groove.

[0009] Furthermore, threaded grooves are provided at both ends of the side of the bidirectional screw, and the two threaded grooves of the bidirectional screw are mirror symmetrical. The sides of the two threaded grooves of the bidirectional screw are threaded with movable plates, and the top of the movable plates is fixedly connected to the bottom of the placement block.

[0010] The technical effects and advantages of this utility model are as follows: 1. This utility model comprises dumbbell plates, a tool assembly, a first threaded hole, and a second limiting plate. When adjusting the weight, the required dumbbell plates are placed in the placement block. The second threaded hole and the first limiting plate respectively limit the position of the weight adjustment mechanism and each dumbbell plate. Then, the tool assembly is connected to the connecting block. When the tool assembly is rotated, the connecting block drives the threaded rod to rotate in the first threaded hole and the second limiting plate, thereby connecting the supporting plate and the second limiting plate, and quickly and firmly connecting the dumbbell plates and the dumbbell rod.

[0011] 2. This utility model, by providing a limiting groove, a bidirectional screw, an adjusting wheel, and a moving plate, allows for the installation of dumbbell bars of different lengths with the weight adjustment mechanism. When the adjusting wheel is rotated, it drives the bidirectional screw to rotate. When the bidirectional screw rotates, it causes the two moving plates on the side to move closer to or further away from each other. When the moving plates move closer to or further away from each other, they cause the placement block and the weight adjustment mechanism above to move synchronously, thus enabling it to be adapted to dumbbell bars of different lengths. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the weight adjustment mechanism of this utility model.

[0015] Figure 4 This is a schematic diagram of the internal structure of the dumbbell plate of this utility model.

[0016] Figure 5 This is a schematic diagram of the length adjustment mechanism of this utility model.

[0017] The attached figures are labeled as follows: 1. Placement block; 2. Weight adjustment mechanism; 201. Dumbbell plate; 202. First limiting plate; 203. Support plate; 204. Tool assembly; 2041. Handwheel; 2042. Connecting rod; 2043. Cross plate; 205. Alternating hole; 206. First threaded hole; 207. Threaded rod; 208. Connecting block; 3. Dumbbell rod; 301. Second threaded hole; 302. Second limiting plate; 4. Length adjustment mechanism; 401. Limiting groove; 402. Bidirectional screw; 403. Adjusting wheel; 404. Moving plate. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Reference Figures 1-4 This utility model provides a combination dumbbell with quick weight adjustment, including a placement block 1, a weight adjustment mechanism 2 placed at the top of the placement block 1, a dumbbell bar 3 movably connected inside the weight adjustment mechanism 2, and a length adjustment mechanism 4 fixedly connected to the bottom of the placement block 1. The weight adjustment mechanism 2 includes dumbbell plates 201. A tool assembly 204 is placed on the top of the placement block 1. The dumbbell plates 201 have a first threaded hole 206 and a clearance hole 205 sequentially formed on both sides from the inside out. The first threaded hole 206 and the clearance hole 205 are connected. A threaded rod 207 is threaded into the first threaded hole 206. A connecting block 208 is fixedly connected to the side of the threaded rod 207. The connecting block 208 is located inside the clearance hole 205. The dumbbell plates 201 are placed sequentially on the placement block 1. Each dumbbell... Each dumbbell plate 201 has a first limiting plate 202 fixedly connected to one side. The other side of each dumbbell plate 201 is a smooth plane. The bottom end of the first limiting plate 202 is movably connected to a support plate 203. The bottom end of the support plate 203 is fixedly connected to the top end of the placement block 1. The dumbbell bar 3 is fixedly connected to a second threaded hole 301. The second threaded hole 301 is adapted to the support plate 203. The dumbbell bar 3 has a second limiting plate 302 on both sides inside. The second limiting plate 302 is connected to the support plate 203.

[0020] In this embodiment, the second threaded hole 301 contacts and limits the support plate 203, and the first limiting plate 202 contacts and limits the support plate 203. The positions of the dumbbell bar 3 and multiple dumbbell plates 201 are all restricted, ensuring that the second limiting plate 302 and the first threaded hole 206 are in a connected state. At this time, the tool assembly 204 is removed from the placement block 1. When the tool assembly 204 is rotated, the connecting block 208 is rotated. When the connecting block 208 rotates, the threaded rod 207 rotates in the first threaded hole 206. The threaded rod 207 rotates from the first threaded hole 206 into the second limiting plate 302. The first threaded hole 206 and the second limiting plate 302 are connected through the threaded rod 207. At this time, the dumbbell plates 201 are stably connected to the dumbbell bar 3 in sequence, and the weight can be adjusted quickly.

[0021] Reference Figure 4 The tool assembly 204 includes a rotatable and fixed handwheel 2041. A connecting rod 2042 is fixedly connected to the side of the handwheel 2041. A cross plate 2043 is fixedly connected to the side of the connecting rod 2042 away from the handwheel 2041. A cross hole adapted to the cross plate 2043 is opened on the side of the connecting block 208 away from the threaded rod 207.

[0022] In this embodiment, the connecting block 208 has a cross hole on the side away from the threaded rod 207 that is adapted to the cross plate 2043. Therefore, after the cross plate 2043 enters the cross hole, the connecting block 208 can be connected by rotating the cross plate 2043, which in turn can drive the threaded rod 207 to be connected.

[0023] Reference Figure 1 and Figure 5 The length adjustment mechanism 4 includes a limiting groove 401 that can provide limiting support. A bidirectional screw 402 is movably connected inside the limiting groove 401. An adjusting wheel 403 is fixedly connected to the side of the bidirectional screw 402. The adjusting wheel 403 is located on the side of the limiting groove 401. Threaded grooves are opened at both ends of the side of the bidirectional screw 402. The two threaded grooves of the bidirectional screw 402 are mirror symmetrical. A movable plate 404 is threadedly connected to the side of the two threaded grooves of the bidirectional screw 402. The top end of the movable plate 404 is fixedly connected to the bottom end of the placement block 1.

[0024] In this embodiment, during adjustment, the adjusting wheel 403 is rotated, which drives the bidirectional screw 402 to rotate. When the bidirectional screw 402 rotates, it drives the moving plates 404 on both sides to move synchronously away from or synchronously approach each other. The two threaded grooves of the bidirectional screw 402 are mirror-symmetrical, allowing them to move closer to or further away from each other. When the moving plates 404 move, they synchronously drive the placement block 1 to move. The placement block 1 drives the upper weight adjustment mechanism 2 to move to a suitable position, making this application applicable to more dumbbells.

[0025] The working principle of this utility model is as follows: For dumbbell bars 3 of different lengths, the distance between the two placement blocks 1 is adjusted. During adjustment, the adjustment wheel 403 is rotated. After the adjustment wheel 403 rotates, it drives the bidirectional screw 402 to rotate. When the bidirectional screw 402 rotates, it drives the moving plates 404 on both sides to move away from or towards each other synchronously. When the moving plates 404 move, they drive the placement blocks 1 to move synchronously. The placement blocks 1 drive the weight adjustment mechanism 2 above to move to the appropriate position. After the placement block 1 is moved to the appropriate position, and a suitable number of dumbbell plates 201 are placed inside the placement block 1, the second threaded hole 301 contacts and limits the support plate 203, and the first limiting plate 202 contacts and limits the support plate 203. At this time, the positions of the dumbbell bar 3 and the multiple dumbbell plates 201 are restricted. Then, the tool assembly 204 is removed from the placement block 1, and the connecting rod 2042 is inserted into the clearance hole 205. The cross plate 2043 engages with the cross hole on the side of the connecting block 208. Then, rotate... When the handwheel 2041 is turned, the handwheel 2041 drives the connecting block 208 to rotate through the connecting rod 2042 and the cross plate 2043. The rotation of the connecting block 208 drives the threaded rod 207 to rotate in the first threaded hole 206. The threaded rod 207 rotates from the first threaded hole 206 into the second limiting plate 302. The threaded rod 207 connects the first threaded hole 206 and the second limiting plate 302. At this time, the dumbbell plate 201 is stably connected to the dumbbell bar 3 in sequence, and the weight can be adjusted quickly.

[0026] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. 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 combination dumbbell with quickly adjustable weight, comprising a placement block (1), characterized in that: The top of the placement block (1) is provided with a weight adjustment mechanism (2), and the inside of the weight adjustment mechanism (2) is movably connected with a dumbbell bar (3). The bottom of the placement block (1) is fixedly connected with a length adjustment mechanism (4). The weight adjustment mechanism (2) includes a dumbbell plate (201). The top of the placement block (1) is provided with a tool assembly (204). The dumbbell plate (201) has a first threaded hole (206) and a clearance hole (205) opened sequentially from the inside to the outside on both sides. The first threaded hole (206) and the clearance hole (205) are connected. A threaded rod (207) is threadedly connected inside the first threaded hole (206). A connecting block (208) is fixedly connected to the side of the threaded rod (207). The connecting block (208) is located inside the clearance hole (205).

2. The combination dumbbell with quickly adjustable weight according to claim 1, characterized in that: The dumbbell plates (201) are placed sequentially on the placement block (1). A first limiting plate (202) is fixedly connected to one side of each dumbbell plate (201), and the other side of each dumbbell plate (201) is a smooth plane. A support plate (203) is movably connected to the bottom end of the first limiting plate (202), and the bottom end of the support plate (203) is fixedly connected to the top end of the placement block (1).

3. A combination dumbbell with quickly adjustable weight according to claim 2, characterized in that: The dumbbell bar (3) is fixedly connected with a second threaded hole (301), which is adapted to the support plate (203). The dumbbell bar (3) has a second limiting plate (302) on both sides inside, and the second limiting plate (302) is connected to the support plate (203).

4. The combination dumbbell with quickly adjustable weight according to claim 1, characterized in that: The tool assembly (204) includes a rotatable and fixed handwheel (2041), a connecting rod (2042) is fixedly connected to the side of the handwheel (2041), a cross plate (2043) is fixedly connected to the side of the connecting rod (2042) away from the handwheel (2041), and a cross hole adapted to the cross plate (2043) is opened on the side of the connecting block (208) away from the threaded rod (207).

5. A combination dumbbell with quickly adjustable weight according to claim 1, characterized in that: The length adjustment mechanism (4) includes a limiting groove (401) that can provide limiting support. A bidirectional screw (402) is movably connected inside the limiting groove (401). An adjusting wheel (403) is fixedly connected to the side of the bidirectional screw (402). The adjusting wheel (403) is located on the side of the limiting groove (401).

6. A combination dumbbell with quickly adjustable weight according to claim 5, characterized in that: Both ends of the side of the bidirectional screw (402) are provided with threaded grooves. The two threaded grooves of the bidirectional screw (402) are mirror symmetrical. The sides of the two threaded grooves of the bidirectional screw (402) are threaded with movable plates (404). The top of the movable plates (404) is fixedly connected to the bottom of the placement block (1).

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