Multi-gear adjustable dumbbell

Abstract

The utility model provides a multi-gear adjustable dumbbell, and aims to solve the problem that part of users cannot adjust the dumbbell according to own requirements due to the fact that the number of counterweight gears which can be adjusted and selected by the dumbbell in the prior art is small. A multi-gear adjustable dumbbell comprises a dumbbell frame, at least one main dumbbell piece and an auxiliary dumbbell piece are detachably arranged on the dumbbell frame, and the weight of the auxiliary dumbbell piece is different from that of the main dumbbell piece; a handle is rotationally arranged on the dumbbell rack; the main adjusting device is arranged on the dumbbell rack and connected with the handle, and the main dumbbell pieces are assembled on the dumbbell rack or disassembled from the dumbbell rack by rotating the handle; and the auxiliary adjusting device is arranged on the dumbbell rack and is used for assembling the auxiliary dumbbell pieces on the dumbbell rack or disassembling the auxiliary dumbbell pieces from the dumbbell rack. According to the utility model, more counterweight gears can be adjusted and selected so as to adapt to more people.

Description

Technical Field

[0001] The utility model belongs to the technical field of fitness equipment, and particularly relates to a dumbbell with multiple adjustable gears. Background Art

[0002] At present, most gyms are equipped with dumbbells as fitness equipment. If users keep practicing dumbbells for a long time, they can modify muscle lines and increase muscle endurance. When using dumbbells, users need to adjust the weight of the dumbbells according to their own factors to achieve a better fitness effect. In the prior art, there has appeared a weight-adjustable dumbbell that can adjust the counterweight blocks on the dumbbell rack by rotating the handle, such as the dumbbell with the patent number 202110883244.9. However, the weights of several counterweight blocks on this dumbbell are the same and relatively heavy. When adjusting the weight, the counterweight blocks at the corresponding positions at both ends of the handle will increase or decrease synchronously. Therefore, it is impossible to obtain weight gears between the first gear and the second gear. Even if the weights of several counterweight blocks are set in a stepped manner, it is still impossible to adjust and obtain the weight gear between two adjacent counterweight blocks with different weights. If several more counterweight blocks are added, it will cause the dumbbell rack to be too long and inconvenient to use. Therefore, the weight-adjustable gears that can be selected in the prior art dumbbells are still few, resulting in some users being unable to adjust according to their own needs. Content of the Utility Model

[0003] The utility model provides a dumbbell with multiple adjustable gears, aiming to solve the problem that the weight-adjustable gears that can be selected in the prior art dumbbells are few, resulting in some users being unable to adjust according to their own needs.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0005] A dumbbell with multiple adjustable gears, comprising:

[0006] A dumbbell rack, on which at least one main dumbbell plate and auxiliary dumbbell plates are detachably arranged, and the weight of the auxiliary dumbbell plates is different from that of the main dumbbell plate; a handle is rotatably arranged on the dumbbell rack;

[0007] A main adjustment device, arranged on the dumbbell rack and connected to the handle, for assembling the main dumbbell plate onto the dumbbell rack or disassembling it from the dumbbell rack by rotating the handle; and,

[0008] An auxiliary adjustment device, arranged on the dumbbell rack and used for assembling the auxiliary dumbbell plates onto the dumbbell rack or disassembling them from the dumbbell rack.

[0009] A further scheme: The auxiliary adjustment device is connected to the handle;

[0010] When the handle is rotated forward, one main dumbbell plate is assembled onto the dumbbell rack every two gear rotations; one auxiliary dumbbell plate is assembled onto the dumbbell rack or removed from the dumbbell rack every one gear rotation; when no main dumbbell plate is assembled in the current gear, the auxiliary dumbbell plate is assembled onto the dumbbell rack; when a main dumbbell plate is assembled in the current gear, the auxiliary dumbbell plate is removed from the dumbbell rack.

[0011] When the handle is rotated backward, one main dumbbell plate is removed from the dumbbell rack every two gear rotations; one auxiliary dumbbell plate is assembled onto the dumbbell rack or removed from the dumbbell rack every one gear rotation; when no main dumbbell plate is removed in the current gear, the auxiliary dumbbell plate is removed from the dumbbell rack; when a main dumbbell plate is removed in the current gear, the auxiliary dumbbell plate is assembled onto the dumbbell rack.

[0012] When the handle is in the initial gear position, one main dumbbell plate or one auxiliary dumbbell plate is assembled onto the dumbbell rack, or no main dumbbell plate and auxiliary dumbbell plate are assembled.

[0013] Based on the above technical solution: Both the main adjustment device and the auxiliary adjustment device are connected to the handle, enabling the removal or assembly of the main dumbbell plate or the auxiliary dumbbell plate by rotating the handle. The above setting increases the number of adjustable gear levels. For example, the even gears can be selected by adjusting the number of main dumbbell plates first. On this basis, the odd gears between two even gears can be selected by increasing or decreasing the auxiliary dumbbell plates. This adjustment mode allows users to select more weight-bearing gears.

[0014] Further solution: The auxiliary adjustment device includes a sliding member slidably disposed on the dumbbell rack, a turntable for driving the sliding member to slide towards the auxiliary dumbbell plate, and an elastic member for driving the sliding member away from the auxiliary dumbbell plate; the turntable is synchronously rotationally connected to the handle.

[0015] A locking mechanism is provided between the sliding member and the auxiliary dumbbell plate. The locking mechanism includes a locked state and an unlocked state; when the locking mechanism is in the locked state, the sliding member slides towards the auxiliary dumbbell plate under the action of the driving member and locks with the auxiliary dumbbell plate; when the locking mechanism is in the unlocked state, the sliding member slides away from the auxiliary dumbbell plate under the action of the elastic member and unlocks from the auxiliary dumbbell plate.

[0016] Based on the above technical solution: The above setting enables the auxiliary dumbbell plate to be fixed to the sliding member through the locking mechanism during the assembly of the auxiliary dumbbell plate. The sliding member is relatively fixed to the turntable, and the turntable is located on the dumbbell rack, thereby assembling the auxiliary dumbbell plate onto the dumbbell rack. By cooperating with the sliding plate through the rotation of the turntable, the removal and assembly of the auxiliary dumbbell plate can be achieved by rotating the turntable to different gears.

[0017] A further solution: an engaging mechanism is provided between the rotating disk and the sliding member;

[0018] The engaging mechanism comprises a plurality of first protruding teeth arranged around the rotating disk and a plurality of second protruding teeth arranged around the sliding member, a first tooth groove is arranged between two adjacent first protruding teeth, and a second tooth groove is arranged between two adjacent second protruding teeth;

[0019] When the turntable is driven by the handle to rotate until the first convex tooth abuts against the second convex tooth, the sliding member slides toward the auxiliary dumbbell plate; when the turntable is driven by the handle to rotate until the first convex tooth matches the second tooth groove and the second convex tooth matches the first tooth groove, the sliding member slides away from the auxiliary dumbbell plate under the action of the elastic member.

[0020] Based on the above technical solution: the above setting makes it possible to rotate the handle to drive the turntable to rotate so that the first convex tooth on the turntable abuts against the second convex tooth, thereby driving the sliding member to slide toward the auxiliary dumbbell plate and lock with it; when the handle is continued to be rotated so that the first convex tooth on the turntable is located in the second tooth gap, at this time, under the action of the elastic member, the sliding member slides away from the auxiliary dumbbell plate, and the auxiliary dumbbell plate is removed.

[0021] A further solution: the locking mechanism includes an insert block arranged on the sliding member and a slot arranged on the auxiliary dumbbell plate, and the insert block is inserted into the slot to lock the sliding member and the auxiliary dumbbell plate.

[0022] Based on the above technical solution: the matching mode of the insert block and the slot facilitates the disassembly and assembly of the auxiliary dumbbell plates.

[0023] A further solution is that a partition is provided between the sliding member and the auxiliary dumbbell plate, and the partition is fixedly connected to the dumbbell rack; a guide hole is provided on the partition, and the insert block slides through the guide hole.

[0024] A further solution is that a cover is provided at the outer end of the dumbbell rack, a guide column is provided between the cover and the partition, and the sliding member is slidably connected to the guide column.

[0025] Based on the above technical solution: the guide column is used to constrain the sliding member to slide along the guide column.

[0026] A further solution: the elastic member is a spring, and the spring is sleeved on the guide column and located between the sliding member and the partition.

[0027] A further solution: the sliding member is arc-shaped, the two ends of the sliding member are provided with the plug blocks, the partition plate is provided with two guide holes corresponding to the two plug blocks respectively, and the auxiliary dumbbell plate is provided with two slots corresponding to the two plug blocks respectively;

[0028] There are two guiding columns, and both ends of the sliding member are respectively and slidably connected to the two guiding columns in a one-to-one correspondence; there are two springs, and the two springs are respectively sleeved on the two guiding columns.

[0029] Further solution: A central shaft synchronously rotating with the handle is provided inside the dumbbell rack, an eccentric wheel is provided on the central shaft, and the turntable is fixedly connected to the eccentric wheel.

[0030] The beneficial effects of the present utility model are as follows:

[0031] The present utility model is provided with a main adjustment device for disassembling and assembling the main dumbbell plates onto the dumbbell rack, and a secondary adjustment device for disassembling and assembling the secondary dumbbell plates onto the dumbbell rack. And the weights of the secondary dumbbell plates and the main dumbbell plates are different, so that the dumbbell of the present utility model can be adjusted to different gears by increasing or decreasing the main dumbbell plates. At the same time, on the basis of increasing or decreasing the main dumbbell plates, it can be further adjusted to more gears by increasing or decreasing the secondary dumbbell plates. The combination of the main dumbbell plates and the secondary dumbbell plates for weight adjustment enables the present utility model to have more adjustable weight gears, and the user can adjust to a weight gear closer to their own needs, so as to adapt to more people. Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0033] Figure 1 It is a schematic cross-sectional structure diagram of a multi-gear adjustable dumbbell of the present utility model.

[0034] Figure 2 is Figure 1 An enlarged structure diagram at A.

[0035] Figure 3 It is an exploded structure diagram of the secondary adjustment device of a multi-gear adjustable dumbbell of the present utility model.

[0036] Figure 4 It is a schematic structure diagram of the cooperation between the turntable and the sliding member.

[0037] Figure 5 It is a schematic structure diagram of the cooperation between the sliding member and the guiding column.

[0038] Figure 6 It is a schematic structure diagram of the sliding member.

[0039] Description of reference numerals in the figures:

[0040] 1 - Dumbbell rack; 11 - Main dumbbell plate; 12 - Auxiliary dumbbell plate; 121 - Slot; 13 - Housing; 14 - Partition; 141 - Guide hole; 15 - Guide post; 2 - Turntable; 21 - First convex tooth; 22 - First tooth groove; 23 - Turntable connection part; 3 - Sliding part; 31 - Second convex tooth; 32 - Second tooth groove; 33 - Through hole; 34 - Insert block; 4 - Central axis; 5 - Eccentric wheel; 51 - Eccentric wheel connection part; 6 - Spring; 7 - Handle. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

[0042] As Figures 1 to 6 shown, this embodiment provides a multi - gear adjustable dumbbell, including:

[0043] A dumbbell rack 1, on which at least one main dumbbell plate 11 and auxiliary dumbbell plates 12 are detachably arranged, and the weight of the auxiliary dumbbell plates 12 is different from that of the main dumbbell plates 11; a handle 7 is rotatably arranged on the dumbbell rack 1;

[0044] A main adjustment device, arranged on the dumbbell rack 1 and connected to the handle 7, for assembling the main dumbbell plate 11 onto the dumbbell rack 1 or disassembling it from the dumbbell rack 1 by rotating the handle 7; and,

[0045] An auxiliary adjustment device, arranged on the dumbbell rack 1 and used for assembling the auxiliary dumbbell plates 12 onto the dumbbell rack 1 or disassembling them from the dumbbell rack 1.

[0046] In this embodiment, the auxiliary adjustment device is preferably connected to the handle 7. When adjusting the counterweight, by rotating the handle 7, the main adjustment device and the auxiliary adjustment device can be driven to rotate simultaneously, so as to correspondingly assemble or disassemble the main dumbbell plate 11 or the auxiliary dumbbell plates 12.

[0047] The specific adjustment method is that when the handle 7 is rotated forward, for every two - gear rotation, one main dumbbell plate 11 is assembled onto the dumbbell rack 1; for every one - gear rotation, one auxiliary dumbbell plate 12 is assembled onto the dumbbell rack 1 or disassembled from the dumbbell rack 1; when the main dumbbell plate 11 is not assembled in the current gear, the auxiliary dumbbell plates 12 are assembled onto the dumbbell rack 1; when the main dumbbell plate 11 is assembled in the current gear, the auxiliary dumbbell plates 12 are disassembled from the dumbbell rack 1;

[0048] When the handle 7 is rotated in the reverse direction, one main dumbbell plate 11 is removed from the dumbbell rack 1 every two gears of rotation; one auxiliary dumbbell plate 12 is assembled onto the dumbbell rack 1 or removed from the dumbbell rack 1 every one gear of rotation; when the main dumbbell plate 11 is not removed in the current gear, the auxiliary dumbbell plate 12 is removed from the dumbbell rack 1; when the main dumbbell plate 11 is removed in the current gear, the auxiliary dumbbell plate 12 is assembled onto the dumbbell rack 1;

[0049] When the handle 7 is in the initial gear, one main dumbbell plate 11 or one auxiliary dumbbell plate 12 is assembled on the dumbbell rack 1, or no main dumbbell plate 11 and auxiliary dumbbell plate 12 are assembled.

[0050] As a specific implementation case, dumbbell racks 1 are provided on both sides of the handle 7. Since the dumbbell racks 1 on both sides of the handle 7 need to be balanced when adjusting the counterweight, the main dumbbell plates 11 at the corresponding positions on the dumbbell racks 1 on both sides of the handle 7 need to be disassembled and assembled synchronously. Specifically, eight main dumbbell plates 11 can be provided and symmetrically distributed on the opposite sides of the handle 7, and two auxiliary dumbbell plates 12 are provided and symmetrically arranged on the dumbbell racks 1 on both sides of the handle respectively.

[0051] For example, the specific gear adjustment method: each main dumbbell plate 11 is 1 kg, and each auxiliary dumbbell plate 12 is 0.5 kg. In the initial gear, no main dumbbell plate 11 or auxiliary dumbbell plate 12 is assembled on the dumbbell rack 1. When the handle 7 is rotated to the first gear, one main dumbbell plate 11 is assembled on each side of the handle 7, and the counterweight is 2 kg at this time. When rotated to the second gear, two auxiliary dumbbell plates 12 are assembled onto the dumbbell rack 1, and the counterweight is 3 kg at this time. When rotated to the third gear, two auxiliary dumbbell plates 12 are removed, and two main dumbbell plates 11 are added and assembled, and the counterweight is 4 kg at this time, and so on.

[0052] In this embodiment, as Figures 2 to 6 shown, as a specific implementation manner of the auxiliary adjustment device, the auxiliary adjustment device includes a sliding member 3 slidably disposed on the dumbbell rack 1, a turntable 2 for driving the sliding member 3 to slide towards the auxiliary dumbbell plate 12, and an elastic member for driving the sliding member 3 away from the auxiliary dumbbell plate 12; the turntable 2 is synchronously rotationally connected to the handle 7. Specifically, a central shaft 4 synchronously rotationally connected to the handle 7 is provided inside the dumbbell rack 1, an eccentric wheel 5 is provided on the central shaft 4, and the turntable 2 is fixedly connected to the eccentric wheel 5. A turntable connection portion 23 is provided on the turntable 2, and an eccentric wheel connection portion 51 is provided on the eccentric wheel 5. Specifically, the eccentric wheel 5 and the turntable 2 can be fixedly connected by screws.

[0053] A locking mechanism is provided between the sliding member 3 and the auxiliary dumbbell plate 12. The locking mechanism includes a locked state and an unlocked state. When the locking mechanism is in the locked state, the sliding member 3 slides towards the auxiliary dumbbell plate 12 under the action of the driving member and locks with the auxiliary dumbbell plate 12. When the locking mechanism is in the unlocked state, the sliding member 3 slides away from the auxiliary dumbbell plate 12 under the action of the elastic member and unlocks from the auxiliary dumbbell plate 12. When assembling the auxiliary dumbbell plate 12, the auxiliary dumbbell plate 12 is fixedly connected to the sliding member 3 through the locking mechanism, and the sliding member 3 is fixedly connected to the turntable 2, while the turntable 2 is located on the dumbbell rack 1, thereby assembling the auxiliary dumbbell plate 12 onto the dumbbell rack 1.

[0054] In this embodiment, as a specific structure in which the turntable 2 drives the sliding member 3 to slide towards the auxiliary dumbbell plate 12 by rotation, a meshing mechanism is provided between the turntable 2 and the sliding member 3;

[0055] Such as Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, the meshing mechanism includes a plurality of first convex teeth 21 arranged around the turntable 2 and a plurality of second convex teeth 31 arranged around the sliding member 3. A first tooth groove 22 is provided between two adjacent first convex teeth 21, and a second tooth groove 32 is provided between two adjacent second convex teeth 31;

[0056] When the turntable 2 rotates under the drive of the handle 7 to make the first convex teeth 21 abut against the second convex teeth 31, the sliding member 3 slides towards the auxiliary dumbbell plate 12, and the elastic member is compressed, so that the sliding member 3 and the auxiliary dumbbell plate 12 are locked together. The first convex teeth 21 keep the sliding member 3 in a state of being locked with the auxiliary dumbbell plate 12 by abutting against the second convex teeth 31. When the turntable 2 rotates under the drive of the handle 7 to make the first convex teeth 21 cooperate with the second tooth groove 32 and the second convex teeth 31 cooperate with the first tooth groove 22, the sliding member 3 slides away from the auxiliary dumbbell plate 12 under the action of the elastic member, thereby unlocking from the auxiliary dumbbell plate 12. At this time, the auxiliary dumbbell plate 12 is detached from the dumbbell rack 1.

[0057] Among them, as a specific implementation manner of the locking mechanism, the locking mechanism includes a plug 34 provided on the sliding member 3 and a slot 121 provided on the auxiliary dumbbell plate 12. The plug 34 is inserted into the slot 121 to lock the sliding member 3 and the auxiliary dumbbell plate 12 together.

[0058] A partition plate 14 is provided between the sliding member 3 and the auxiliary dumbbell plate 12, and the partition plate 14 is fixedly connected to the dumbbell rack 1; a guiding hole 141 is provided on the partition plate 14, and the insertion block 34 slides through the guiding hole 141 and is inserted into the slot 121 after passing through the guiding hole 141.

[0059] In this embodiment, as Figure 1 and Figure 3 shown, a housing 13 is provided at the outer end of the dumbbell rack 1. A guiding column 15 is provided between the housing 13 and the partition plate 14, and the sliding member 3 is slidably connected to the guiding column 15. Specifically, a through hole 33 sleeving the outer side of the guiding column 15 is provided on the sliding member 3. The turntable 2 is located between the housing 13 and the sliding member 3.

[0060] Among them, the elastic member can be preferably a spring 6. The specific setting method of the spring 6 is: the spring 6 is sleeved on the guiding column 15 and is located between the sliding member 3 and the partition plate 14.

[0061] In this embodiment, in order to optimize the structure, as Figure 5 and Figure 6 shown, the sliding member 3 is preferably arc-shaped. In order to make it more balanced and stable during sliding, insertion blocks 34 are provided at both ends of the sliding member 3. Two guiding holes 141 corresponding to the two insertion blocks 34 respectively are provided on the partition plate 14, and two slots 121 corresponding to the two insertion blocks 34 respectively are provided on the auxiliary dumbbell plate 12;

[0062] There are two guiding columns 15, and the two ends of the sliding member 3 are respectively slidably connected to the two guiding columns 15 in a one-to-one correspondence; there are two springs 6, and the two springs 6 are respectively sleeved on the two guiding columns 15.

[0063] Working principle description:

[0064] When the handle 7 is rotated forward, one main dumbbell plate 11 is assembled onto the dumbbell rack 1 every time two gears are rotated; one auxiliary dumbbell plate 12 is assembled onto the dumbbell rack 1 or disassembled from the dumbbell rack 1 every time one gear is rotated; specifically, when the main dumbbell plate 11 is not assembled in the current gear, the auxiliary dumbbell plate 12 is assembled onto the dumbbell rack 1; when the main dumbbell plate 11 is assembled in the current gear, the auxiliary dumbbell plate 12 is disassembled from the dumbbell rack 1.

[0065] When the handle 7 is rotated in the reverse direction, one main dumbbell plate 11 is removed from the dumbbell rack 1 every two gear rotations; one auxiliary dumbbell plate 12 is assembled onto the dumbbell rack 1 or removed from the dumbbell rack 1 every one gear rotation; when the main dumbbell plate 11 is not removed at the current gear, the auxiliary dumbbell plate 12 is removed from the dumbbell rack 1; when the main dumbbell plate 11 is removed at the current gear, the auxiliary dumbbell plate 12 is assembled onto the dumbbell rack 1. In this embodiment, a gear position achieved by disassembling and assembling the auxiliary dumbbell plate 12 is inserted between two consecutive gear positions achieved only by disassembling and assembling the main dumbbell plate 11, so as to provide more adjustable gear positions.

[0066] The present utility model is not limited to the above-mentioned optional embodiments. On the premise of non-conflict, the various solutions can be arbitrarily combined; anyone can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as the technical solutions fall within the scope defined by the claims of the present utility model, they all fall within the protection scope of the present utility model.

Claims

1. A multi-gear adjustable dumbbell, characterized in that, Comprising: A dumbbell rack, on which at least one main dumbbell plate and auxiliary dumbbell plates are detachably arranged, and the weight of the auxiliary dumbbell plates is different from that of the main dumbbell plates; a handle is rotatably arranged on the dumbbell rack; A main adjustment device, arranged on the dumbbell rack and connected to the handle, and the main dumbbell plate is assembled onto the dumbbell rack or detached from the dumbbell rack by rotating the handle; And, An auxiliary adjustment device, arranged on the dumbbell rack and used to assemble the auxiliary dumbbell plates onto the dumbbell rack or detach them from the dumbbell rack.

2. The adjustable dumbbell with multiple gears according to claim 1, wherein The auxiliary adjustment device is connected to the handle; When the handle is rotated forward, one main dumbbell plate is assembled onto the dumbbell rack every two rotations of the handle; one auxiliary dumbbell plate is assembled onto the dumbbell rack or detached from the dumbbell rack every one rotation of the handle; when no main dumbbell plate is assembled in the current gear, the auxiliary dumbbell plates are assembled onto the dumbbell rack; when a main dumbbell plate is assembled in the current gear, the auxiliary dumbbell plates are detached from the dumbbell rack; When the handle is rotated backward, one main dumbbell plate is detached from the dumbbell rack every two rotations of the handle; one auxiliary dumbbell plate is assembled onto the dumbbell rack or detached from the dumbbell rack every one rotation of the handle; when no main dumbbell plate is detached in the current gear, the auxiliary dumbbell plates are detached from the dumbbell rack; when a main dumbbell plate is detached in the current gear, the auxiliary dumbbell plates are assembled onto the dumbbell rack; When the handle is in the initial gear, one main dumbbell plate or auxiliary dumbbell plates are assembled on the dumbbell rack, or no main dumbbell plates and auxiliary dumbbell plates are assembled.

3. The multi-gear adjustable dumbbell according to claim 2, wherein The auxiliary adjustment device includes a sliding member slidably arranged on the dumbbell rack, a turntable for driving the sliding member to slide towards the auxiliary dumbbell plates, and an elastic member for driving the sliding member away from the auxiliary dumbbell plates; the turntable is synchronously rotationally connected to the handle; A locking mechanism is arranged between the sliding member and the auxiliary dumbbell plates, and the locking mechanism includes a locked state and an unlocked state; when the locking mechanism is in the locked state, the sliding member slides towards the auxiliary dumbbell plates under the action of a driving member and is locked with the auxiliary dumbbell plates; When the locking mechanism is in the unlocked state, the sliding member slides away from the auxiliary dumbbell plates under the action of the elastic member and is unlocked from the auxiliary dumbbell plates.

4. A multi-gear adjustable dumbbell according to claim 3, wherein, A meshing mechanism is arranged between the turntable and the sliding member; The meshing mechanism includes a plurality of first convex teeth arranged around the turntable and a plurality of second convex teeth arranged around the sliding member, a first tooth groove is arranged between two adjacent first convex teeth, and a second tooth groove is arranged between two adjacent second convex teeth; When the turntable is rotated by the handle to make the first convex teeth abut against the second convex teeth, the sliding member slides towards the auxiliary dumbbell plates; when the turntable is rotated by the handle to make the first convex teeth cooperate with the second tooth groove and the second convex teeth cooperate with the first tooth groove, the sliding member slides away from the auxiliary dumbbell plates under the action of the elastic member.

5. A multi-gear adjustable dumbbell according to claim 3 or 4, characterized in that, The locking mechanism includes a plug block provided on the sliding member and a slot provided on the auxiliary dumbbell plate. The sliding member is locked to the auxiliary dumbbell plate by the plug block being inserted into the slot.

6. A multi-gear adjustable dumbbell according to claim 5, characterized in that, A partition plate is provided between the sliding member and the auxiliary dumbbell plate. The partition plate is fixedly connected to the dumbbell rack. A guiding hole is provided on the partition plate, and the plug block slides through the guiding hole.

7. A multi-gear adjustable dumbbell according to claim 6, characterized in that, A housing is provided at the outer end of the dumbbell rack. A guiding column is provided between the housing and the partition plate, and the sliding member is slidably connected to the guiding column.

8. A multi-gear adjustable dumbbell according to claim 7, characterized in that, The elastic member is a spring. The spring is sleeved on the guiding column and is located between the sliding member and the partition plate.

9. The adjustable dumbbell with multiple gears according to claim 8, wherein, The sliding member is arc-shaped. Plug blocks are provided at both ends of the sliding member. Two guiding holes corresponding to the two plug blocks respectively are provided on the partition plate, and two slots corresponding to the two plug blocks respectively are provided on the auxiliary dumbbell plate. There are two guiding columns. The two ends of the sliding member are respectively slidably connected to the two guiding columns in a one-to-one correspondence. There are two springs, and the two springs are respectively sleeved on the two guiding columns.

10. A multi-gear adjustable dumbbell according to claim 3, characterized in that, A central shaft synchronously rotating with the handle is provided in the dumbbell rack. An eccentric wheel is provided on the central shaft, and the turntable is fixedly connected to the eccentric wheel.

Images