A dumbbell

Abstract

The utility model provides a kind of dumbbell, to solve the dumbbell of gear shifting by rotating handle in prior art, it is prone to gear shifting not in place to cause locking assembly and counterweight piece connection unstable, the problem of counterweight piece disengagement and user is injured in use process.A kind of dumbbell, including dumbbell seat, the dumbbell seat is equipped with several counterweight pieces;Dumbbell frame, the dumbbell frame includes handle and the chuck assembly of at least one side of the handle, each group chuck assembly and each corresponding counterweight piece between it are equipped with main locking assembly;The main locking assembly includes the first locking state for making corresponding counterweight piece from dumbbell seat load to chuck assembly on and the first unlocking state for making corresponding counterweight piece unload from chuck assembly to dumbbell seat on.The utility model in place by the auxiliary locking assembly locking counterweight piece loaded to chuck assembly by the main locking assembly, so that the problem of not prone to counterweight piece drop and user is injured when exercising.

Description

Technical Field

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

[0002] With the rapid development of society and economy, people's living standards are constantly improving. In order to adapt to the increasingly fast pace of modern society, people are paying more and more attention to physical fitness and often use dumbbells for exercise.

[0003] In the prior art, dumbbells include a dumbbell base and a dumbbell rack. The dumbbell base is provided with several counterweights. The dumbbell rack includes a handle, chuck assemblies located on both sides of the handle, and a central shaft rotatably connected to the two chuck assemblies. The handle and the central shaft are synchronously connected. The chuck assembly is provided with a locking component. By rotating the handle, the central shaft is driven to rotate synchronously, so that the locking component locks or disengages from the counterweights to increase or decrease the dumbbell weight. This type of dumbbell is prone to problems such as incomplete shifting, which can lead to unstable connection between the locking component and the counterweights, resulting in the counterweights detaching and injuring the user during use. Utility Model Content

[0004] This utility model provides a dumbbell designed to solve the problem in existing dumbbells that use a handle to shift gears, where improper shifting can lead to unstable connection between the locking component and the counterweight, resulting in the counterweight detaching and injuring the user during use.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] This utility model provides a dumbbell, comprising:

[0007] A dumbbell stand, wherein the dumbbell stand is provided with a plurality of counterweights;

[0008] A dumbbell rack, the dumbbell rack including a handle and a set of chuck assemblies located on at least one side of the handle, each set of chuck assemblies having a main locking assembly between it and each corresponding counterweight; the main locking assembly includes a first locking state for loading the corresponding counterweight from the dumbbell seat onto the chuck assembly and a first unlocking state for unloading the corresponding counterweight from the chuck assembly onto the dumbbell seat; and

[0009] An auxiliary locking component is disposed between the chuck assembly and all counterweights, and is used to lock the counterweights loaded onto the chuck assembly by the main locking component when the dumbbell rack is disengaged from the dumbbell seat. The auxiliary locking component includes a second locked state and a second unlocked state.

[0010] Further solution: When the dumbbell rack is placed on the dumbbell seat, the auxiliary locking component switches to the second unlocked state, and in the second unlocked state, the auxiliary locking component releases the lock between all counterweights and chuck components;

[0011] When the dumbbell rack is disengaged from the dumbbell seat, the auxiliary locking component switches to a second locking state, and in the second locking state, the auxiliary locking component locks the counterweight that is loaded onto the chuck assembly by the main locking component.

[0012] Further solution: The auxiliary locking component includes:

[0013] The first locking part is provided on each of the counterweights;

[0014] A plurality of second locking parts are located on the chuck assembly. Each second locking part includes a locking position for locking with its corresponding first locking part and an unlocking position for disengaging from locking with its corresponding first locking part.

[0015] A first elastic reset component is used to drive each of the second locking parts from the unlocked position to the locked position;

[0016] The dumbbell holder is provided with an unlocking part for driving all the second locking parts from the locked position to the unlocked position;

[0017] When the dumbbell rack is placed on the dumbbell seat, the unlocking part drives all the second locking parts to move from the locked position to the unlocked position, and the auxiliary locking component switches to the second unlocked state, and the first elastic reset component is compressed, and the unlocking part releases the lock between all the first locking parts and the second locking parts;

[0018] When the dumbbell rack is disengaged from the dumbbell seat, all the second locking parts move from the unlocked position to the locked position under the reset action of the first elastic reset component, and the auxiliary locking component switches to the second locking state, whereby the auxiliary locking component locks the counterweight that is loaded onto the chuck assembly by the main locking component.

[0019] Based on the above technical solution: when the dumbbell rack is placed on the dumbbell seat, the unlocking part drives all the second locking parts to move from the locked position to the unlocked position, and the auxiliary locking component switches to the second unlocked state, and the first elastic reset component is compressed. The unlocking part releases the lock between all the first locking parts and the second locking parts, so that the user can add or remove the weights according to their own exercise needs.

[0020] When the dumbbell rack detaches from the dumbbell seat, all the second locking parts move from the unlocked position to the locked position under the reset action of the first elastic reset component, and the auxiliary locking component switches to the second locking state. The auxiliary locking component locks the counterweights that are loaded onto the chuck assembly by the main locking component, so that when the user lifts the dumbbell rack, the second locking parts lock all the counterweights that are lifted, thereby making it less likely for the counterweights to fall and injure the user during exercise.

[0021] Further solution: The chuck assembly is provided with a linkage component that slides along the vertical direction;

[0022] When the dumbbell rack is placed on the dumbbell seat, the unlocking part drives the linkage to slide upward relative to the chuck assembly, and the linkage drives all the second locking parts to move from the locked position to the unlocked position;

[0023] When the dumbbell rack disengages from the dumbbell seat, all the second locking parts move from the unlocked position to the locked position under the reset action of the first elastic reset component, and drive the linkage to move downward relative to the chuck assembly.

[0024] Based on the above technical solution: the unlocking part enables the auxiliary locking component to be unlocked when the dumbbell rack is placed on the dumbbell seat, by abutting against the linkage.

[0025] Further solution: The linkage component is provided with a plurality of first inclined surfaces, and each second locking part is provided with a second inclined surface, and each first inclined surface is fitted with its corresponding second inclined surface;

[0026] When the dumbbell rack is placed on the dumbbell seat, the unlocking part drives the linkage to slide upward relative to the chuck assembly. The linkage slides relative to the second inclined plane through the first inclined plane, causing the second locking part to move from the locked position to the unlocked position.

[0027] When the dumbbell rack disengages from the dumbbell seat, the second locking part moves from the unlocked position to the locked position under the reset action of the first elastic reset component. The second locking part slides relative to the second inclined surface through the first inclined surface, causing the linkage to slide downward and reset relative to the chuck assembly.

[0028] Based on the above technical solution: the first inclined surface and the second inclined surface fit together, so that the up and down movement of the linkage is changed to the left and right sliding of the second locking part, thereby making the structure more compact.

[0029] Further embodiment: The linkage includes a first sliding part located on the upper side, a driving part located on the lower side of the first sliding part, and a plurality of linkage parts located on the lower side of the first sliding part, with each first inclined surface located on its corresponding linkage part;

[0030] When the dumbbell rack is placed on the dumbbell seat, the unlocking part abuts against the driving part, causing the linkage to slide upward relative to the chuck assembly.

[0031] Based on the above technical solution: the unlocking part abuts against the driving part, causing the linkage to slide upward relative to the chuck assembly, thereby enabling the auxiliary locking component in this utility model to unlock synchronously.

[0032] Further solution: Each of the second locking parts is provided with a limiting hole and each of the second inclined surfaces is provided on the side wall of the corresponding limiting hole, each of the linkage parts is located in the corresponding limiting hole and each of the first inclined surfaces is slidably connected to the corresponding second inclined surface.

[0033] Based on the above technical solution: each of the linkage parts is located in the corresponding limiting hole and each first inclined surface is slidably connected to the corresponding second inclined surface, making the structure of the linkage part and the auxiliary locking component more compact.

[0034] Further embodiment: The chuck assembly is provided with a guide groove, the first sliding part is slidably disposed in the guide groove in the vertical direction, the driving part is located on the side of the first sliding part and extends from top to bottom, and the chuck assembly is provided with a clearance hole for the unlocking part to pass through and abut against the driving part.

[0035] Based on the above technical solution: the first sliding part is slidably disposed in the guide groove in the up and down direction, making the sliding of the first sliding part more stable.

[0036] Further solution: The auxiliary locking component also includes:

[0037] The connecting part, each of the second locking parts is integrally formed or fixedly connected to the connecting part, the chuck assembly is provided with a mounting groove, and the second locking part and the connecting part are slidably disposed in the mounting groove.

[0038] Based on the above technical solution: each of the second locking parts is integrally formed or fixedly connected to the connecting part, so that a number of the second locking parts can achieve synchronous linkage.

[0039] Further embodiment: Each of the counterweights is provided with an upward-facing snap-fit ​​groove, and each of the first locking parts is a positioning groove located on the side wall of the snap-fit ​​groove.

[0040] Based on the above technical solution: the snap-fit ​​groove makes the connection between the counterweight and the chuck assembly more stable when the main locking component loads the corresponding counterweight from the dumbbell seat to the chuck assembly.

[0041] Further embodiment: The chuck assembly consists of two sets, with the two sets of chuck assemblies located on the left and right sides of the handle, respectively.

[0042] The beneficial effects of this utility model are as follows:

[0043] In this invention, a main locking component is provided to load or unload the counterweight from the dumbbell rack onto the dumbbell bench during weight adjustment. An auxiliary locking component is provided to further lock the counterweight to the dumbbell rack when the main locking component loads it, thus providing a safety protection function. Therefore, during weight adjustment, when the main locking component and the corresponding counterweight are locked in place, the auxiliary locking component further locks the counterweight, achieving a double locking effect and further improving the safety of the dumbbells in this invention. During weight adjustment, if the main locking component and the corresponding counterweight are not locked in place and the dumbbell rack is disengaged from the dumbbell bench, the auxiliary locking component locks the counterweight loaded onto the chuck assembly by the main locking component, making it less likely for the counterweight to fall and injure the user.

[0044] When the dumbbell rack is placed on the dumbbell seat, the main locking component is manually adjusted to switch from the first locked state to the first unlocked state, and the auxiliary locking component switches to the second unlocked state. In the second unlocked state, the user can easily unload the counterweight from the dumbbell rack to the dumbbell seat or load it from the dumbbell seat onto the dumbbell rack by operating the main locking component. Attached Figure Description

[0045] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a cross-sectional structural diagram of the present invention when the dumbbell rack is placed on the dumbbell seat.

[0047] Figure 2 This is a cross-sectional structural diagram of the present invention when the dumbbell rack is detached from the dumbbell seat.

[0048] Figure 3This is a schematic diagram of the structure of the present invention when the dumbbell rack is placed on the dumbbell seat.

[0049] Figure 4 This is a cross-sectional structural diagram of the present invention when the dumbbell rack is placed on the dumbbell seat.

[0050] Figure 5 This is a partially enlarged structural diagram of the main locking component of this utility model.

[0051] Figure 6 This is a cross-sectional structural diagram of the present invention.

[0052] Figure 7 This is a schematic diagram of the linkage structure of this utility model.

[0053] Figure 8 This is a schematic diagram of the second locking part of this utility model.

[0054] Figure 9 This is a schematic diagram of the cross-sectional structure of the mounting groove of this utility model.

[0055] Figure 10 This is a schematic diagram of the main locking component structure of this utility model.

[0056] Figure 11 This is a schematic diagram of the second locking part of the present invention when the dumbbell rack is disengaged from the dumbbell seat.

[0057] Figure 12 This is a schematic diagram of the counterweight structure in this utility model.

[0058] Figure 13 This is a schematic diagram of the dumbbell holder structure in this utility model.

[0059] Explanation of the labels in the diagram:

[0060] 1-Dumbbell base; 2-Counterweight; 21-Snap-fit ​​groove; 3-Dumbbell rack; 31-Handle; 32-Chuck assembly; 321-First mounting groove; 322-Second mounting groove; 323-Guide groove; 323-Lean-out hole; 324-Mounting part; 4-Main locking assembly; 41-Cam; 42-Snap-fit; 421-First snap-fit ​​part; 43-Second snap-fit ​​part; 44-Second elastic reset part; 5-Auxiliary locking assembly; 51-First locking part; 52-Second locking part; 521-Limiting hole; 522-Connecting part; 53-First elastic reset assembly; 6-Unlocking part; 7-Linkage part; 71-First sliding part; 72-Drive part; 73-Linkage part; 8-Central shaft. Detailed Implementation

[0061] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model. 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.

[0062] like Figures 1 to 13 As shown, this embodiment provides a dumbbell, including:

[0063] Dumbbell base 1, wherein a plurality of counterweights 2 are provided on the dumbbell base 1;

[0064] A dumbbell rack 3 includes a handle 31 and a set of chuck assemblies 32 located on at least one side of the handle 31. Each set of chuck assemblies 32 is provided with a main locking assembly 4 between itself and each corresponding counterweight 2. The main locking assembly 4 includes a first locking state for loading the corresponding counterweight 2 from the dumbbell seat 1 onto the chuck assembly 32 and a first unlocking state for unloading the corresponding counterweight 2 from the chuck assembly 32 onto the dumbbell seat 1.

[0065] An auxiliary locking component 5 is disposed between the chuck assembly 32 and all the counterweights 2, and is used to lock the counterweights 2 loaded onto the chuck assembly 32 by the main locking component 4 when the dumbbell rack 3 is disengaged from the dumbbell seat 1. The auxiliary locking component 5 includes a second locked state and a second unlocked state.

[0066] like Figure 1 As shown, when the dumbbell rack 3 is placed on the dumbbell seat 1, the auxiliary locking component 5 switches to the second unlocking state. In the second unlocking state, the auxiliary locking component 5 releases the lock between all counterweights 2 and the chuck assembly 32. At this time, the user can operate the main locking component 4 to unload the counterweights 2 from the dumbbell rack 3 onto the dumbbell seat 1 or load them from the dumbbell seat 1 onto the dumbbell rack 3.

[0067] like Figure 2 As shown, when the dumbbell rack 3 detaches from the dumbbell seat 1, the auxiliary locking component 5 switches to a second locking state. In this second locking state, the auxiliary locking component 5 locks the counterweight 2 that is mounted on the chuck assembly 32 by the main locking component 4. When the dumbbell rack 3 detaches from the dumbbell seat 1, the auxiliary locking component 5 further locks the counterweight 2 mounted on the chuck assembly 32 by the main locking component 4, thus providing greater safety for the dumbbells in this embodiment.

[0068] like Figure 1As shown, this example provides a specific structure of the auxiliary locking component 5, which includes:

[0069] The first locking part 51 is provided on each of the counterweights 2;

[0070] A plurality of second locking parts 52 are located on the chuck assembly 32. Each second locking part 52 includes a locking position for locking with its corresponding first locking part 51 and an unlocking position for disengaging from locking with its corresponding first locking part 51. Specifically, the plurality of second locking parts 52 are arranged side by side along the axis of the dumbbell rack 3.

[0071] A first elastic reset component 53 is used to drive each of the second locking parts 52 from the unlocked position to the locked position;

[0072] The dumbbell base 1 is provided with an unlocking part 6 for driving all the second locking parts 52 from the locked position to the unlocked position;

[0073] like Figure 1 As shown, when the dumbbell rack 3 is placed on the dumbbell seat 1, the unlocking part 6 drives all the second locking parts 52 to move from the locked position to the unlocked position, and the auxiliary locking component 5 switches to the second unlocked state, and the first elastic reset component 53 is compressed. The auxiliary locking component 5 releases the lock between all the counterweights 2 and the chuck component 32. At this time, the user can operate the main locking component 4 to unload the counterweights 2 from the dumbbell rack 3 to the dumbbell seat 1 or load them from the dumbbell seat 1 to the dumbbell rack 3.

[0074] like Figure 2 As shown, when the dumbbell rack 3 is disengaged from the dumbbell seat 1, all the second locking parts 52 move from the unlocked position to the locked position under the reset action of the first elastic reset component 53, and the auxiliary locking component 5 switches to the second locking state. The auxiliary locking component 5 locks the counterweight 2 that is loaded onto the chuck component 32 by the main locking component 4, so that the dumbbell in this embodiment has higher safety.

[0075] The unlocking unit can also be installed on the dumbbell rack, so that the user can actively operate the unlocking unit to switch the auxiliary locking component to the second unlocking state.

[0076] like Figure 7 As shown, in order to enable the auxiliary locking component 5 to unlock all the counterweights 2 at the same time, the chuck component 32 is provided with a linkage component 7 that slides along the up and down direction;

[0077] like Figure 1As shown, when the dumbbell rack 3 is placed on the dumbbell seat 1, the unlocking part 6 drives the linkage 7 to slide upward relative to the chuck assembly 32. During the upward sliding process, the linkage 7 drives all the second locking parts 52 to move from the locked position to the unlocked position. The unlocking part 6 releases the lock between all the first locking parts 51 and the second locking parts 52. At this time, the user can operate the main locking assembly 4 to unload the counterweight 2 from the dumbbell rack 3 to the dumbbell seat 1 or load it from the dumbbell seat 1 to the dumbbell rack 3.

[0078] like Figure 2 As shown, when the dumbbell rack 3 is disengaged from the dumbbell seat 1, all the second locking parts 52 move from the unlocked position to the locked position under the reset action of the first elastic reset component 53. During the movement of the second locking parts 52, the linkage 7 is driven to move downward relative to the chuck assembly 32, so that the linkage 7 is reset.

[0079] like Figure 7 as well as Figure 8 As shown, in order to facilitate the cooperation between the second locking part 52 and the linkage 7, the linkage 7 is provided with a plurality of first inclined surfaces, each of the second locking parts 52 is provided with a second inclined surface, and each first inclined surface is in contact with its corresponding second inclined surface;

[0080] like Figure 1 As shown, when the dumbbell rack 3 is placed on the dumbbell seat 1, the unlocking part 6 drives the linkage 7 to slide upward relative to the chuck assembly 32. The linkage 7 slides relative to the second inclined surface through the first inclined surface. Specifically, the first inclined surface slides away from the second inclined surface, causing the second locking part 52 to move from the locked position to the unlocked position. At this time, the user can operate the main locking assembly 4 to unload the counterweight 2 from the dumbbell rack 3 to the dumbbell seat 1 or load it from the dumbbell seat 1 to the dumbbell rack 3.

[0081] like Figure 2 As shown, when the dumbbell rack 3 is disengaged from the dumbbell seat 1, the second locking part 52 moves from the unlocked position to the locked position under the reset action of the first elastic reset component 53. The second locking part 52 slides relative to the second inclined surface through the first inclined surface, causing the linkage 7 to slide downward relative to the chuck assembly 32 and reset.

[0082] like Figure 7As shown, when the dumbbell rack 3 is placed on the dumbbell seat 1, in order for the unlocking part 6 to smoothly drive the linkage 7 to slide upward, the linkage 7 includes a first sliding part 71 located on the upper side, a driving part 72 located on the lower side of the first sliding part 71, and a plurality of linkage parts 73 located on the lower side of the first sliding part 71. Each first inclined surface is located on its corresponding linkage part 73. Specifically, the plurality of linkage parts 73 are arranged side by side along the axis of the dumbbell rack 3; and the first sliding part 71, the driving part 72, and the plurality of linkage parts 73 are preferably integrally formed.

[0083] like Figure 1 As shown, when the dumbbell rack 3 is placed on the dumbbell seat 1, the unlocking part 6 abuts against the driving part 72, causing the linkage 7 to slide upward relative to the chuck assembly 32.

[0084] Specifically, such as Figure 6 As shown, when the dumbbell rack 3 is placed on the dumbbell seat 1, the unlocking part 6 abuts against the lower side of the driving part 72, thereby driving the linkage 7 to slide upward relative to the chuck assembly 32.

[0085] like Figure 1 or Figure 8 As shown, in order to make the structure of the auxiliary locking component 5 and the linkage component 7 in this embodiment more compact, each second locking part 52 is provided with a limiting hole 521 and each second inclined surface is provided on the side wall of the limiting hole 521 corresponding to it. Specifically, the second inclined surface is located on the side wall of the limiting hole 521 corresponding to it away from the first locking part 51, each linkage part 73 is located in the limiting hole 521 corresponding to it, and each first inclined surface slides and fits against its corresponding second inclined surface.

[0086] like Figure 1 as well as Figure 4 As shown, the chuck assembly 32 is provided with a guide groove 323, the first sliding part 71 is slidably disposed in the guide groove 323 in the vertical direction, the driving part 72 is located on the side of the first sliding part 71 and extends from top to bottom, and the chuck assembly 32 is provided with a clearance hole 323 for the unlocking part 6 to pass through and abut against the driving part 72.

[0087] Specifically, such as Figure 4 or Figure 6 As shown, when the dumbbell rack 3 is placed on the dumbbell seat 1, the unlocking part 6 passes through the clearance hole 323 and abuts against the lower side of the drive part 72.

[0088] like Figure 8 As shown, in order to facilitate the synchronous linkage of several second locking parts 52, the auxiliary locking component 5 further includes:

[0089] like Figure 9 As shown, each of the second locking parts 52 is integrally formed or fixedly connected to the connecting part 522. The chuck assembly 32 is provided with a mounting groove, and both the second locking parts 52 and the connecting parts 522 are slidably disposed in the mounting groove. The mounting groove includes a first mounting groove 321 for mounting the connecting part 522 and a second mounting groove 322 for mounting a plurality of second locking parts 52. The plurality of second locking parts 52 are respectively disposed in the plurality of second mounting grooves 322. Specifically, the second mounting grooves 322 extend along the front-back direction on the chuck assembly 32. When the dumbbell rack 3 is placed on the dumbbell seat 1, the opening of the second mounting groove 322 faces the corresponding first locking part 51. When the second locking part 52 is in the unlocked position, it retracts into the second mounting groove 322; when the second locking part 52 is in the locked position, the outer end of the second locking part 52 extends outward from the opening of the second mounting groove 322 to lock with the first locking part 51.

[0090] The first elastic reset component 53 includes a plurality of springs, each of which is located between the connecting portion 522 and the bottom wall of the first mounting groove 322a.

[0091] like Figure 1 As shown, in order to make the first sliding part 71 slide more stably in the vertical direction, the chuck assembly 32 is provided with a guide groove 323. The first sliding part 71 is slidably disposed in the guide groove 323 in the vertical direction. The driving part 72 is located on the side of the first sliding part 71 and extends from top to bottom. The chuck assembly 32 is provided with a clearance hole 323 for the unlocking part 6 to pass through and abut against the driving part 72.

[0092] Specifically, such as Figure 6 As shown, when the dumbbell rack 3 is placed on the dumbbell seat 1, the unlocking part 6 passes through the clearance hole 323 and abuts against the lower side of the driving part 72. The clearance hole 323 makes the abutment between the first sliding part 71 and the unlocking part 6 more stable.

[0093] like Figure 12 As shown, to ensure a more stable connection between the chuck assembly 32 and the counterweight 2, each counterweight 2 is provided with an upward-facing locking groove 21, and each of the first locking parts 51 is a positioning groove located on the side wall of the locking groove 21. The chuck assembly is provided with a plurality of counterweight mounting parts, and when the counterweight is locked on the dumbbell rack, the locking groove 21 is fitted onto the outside of the mounting part.

[0094] like Figure 3As shown, there are two sets of chuck assemblies 32, with the two sets of chuck assemblies 32 located on the left and right sides of the handle 31, respectively. Figure 4 As shown, the main locking component 4 can be a structure in the prior art that loads or unloads the counterweight 2 by rotating the handle 31.

[0095] like Figure 5 As shown, this embodiment provides a specific implementation of the main locking component 4, which includes:

[0096] Cam 41, which is located on the central shaft 8 and is synchronously connected to the central shaft 8 and the handle 31;

[0097] The two latching parts 42 on the left and right are slidably disposed on the chuck assembly 32 in the vertical direction. The upper end of each latching part 42 abuts against the corresponding cam 41. Each latching part 42 is provided with a first latching part 421.

[0098] The second locking part 43 is provided on the counterweight 2;

[0099] The second elastic reset member 44 is used to drive the two opposing snap-fit ​​members 42 to switch from the first locked state to the first unlocked state. Specifically, the second elastic reset member 44 is a spring.

[0100] like Figure 5 As shown, when the handle 31 is rotated so that the protrusion on a certain cam 41 abuts against the two corresponding latching parts 42, the two latching parts 42 slide downward relative to the chuck assembly 32 and move closer to each other, thus switching to the first locking state. This allows the two first latching parts 421 to clamp the second latching parts 43 from the left and right sides, and load the corresponding counterweight 2 from the dumbbell seat 1 onto the dumbbell rack 3. When the handle 31 is rotated so that the recess on a certain cam 41 abuts against the two corresponding latching parts 42, under the action of the corresponding second elastic reset member 44, the two latching parts 42 slide upward relative to the chuck assembly 32 and move away from each other, thus disengaging from the second latching parts 43, and unloading the corresponding counterweight 2 from the dumbbell rack 3 onto the dumbbell seat 1.

[0101] Specifically, the chuck assembly 32 has two first ramps on the left and right, and each latching member 42 has a second ramp. The two second ramps are respectively attached to the two first ramps and slide relative to each other under the action of the cam 41 or the second elastic reset member 44, thereby achieving mutual approach or mutual distance.

[0102] Working principle explanation:

[0103] In this embodiment, when the dumbbell rack 3 is detached from the dumbbell seat 1, the unlocking part 6 drives the linkage 7 to slide upward relative to the chuck assembly 32, and the linkage 73 slides relative to the second inclined surface through the first inclined surface, so that the second locking part 52 moves from the locked position to the unlocked position, thereby making it less likely for the counterweight 2 to fall and injure the user during dumbbell exercise.

[0104] In this embodiment, when the dumbbell rack 3 is placed on the dumbbell seat 1, all the second locking parts 52 move from the unlocked position to the locked position under the reset action of the first elastic reset component 53, and drive the linkage 7 to move downward relative to the chuck component 32 to reset, so that when the dumbbell rack 3 is placed on the dumbbell seat 1, the user can increase or decrease the counterweight 2 according to his own exercise needs, thereby achieving a better fitness effect.

[0105] This utility model is not limited to the above-mentioned optional embodiments. Under the premise of non-contradiction, the various solutions can be combined arbitrarily. Anyone can derive other forms of products under the guidance of this utility model. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope of the claims of this utility model are within the protection scope of this utility model.

Claims

1. A dumbbell, characterized in that, include: A dumbbell stand, wherein the dumbbell stand is provided with several counterweights; A dumbbell rack, the dumbbell rack including a handle and a set of chuck assemblies located on at least one side of the handle, each set of chuck assemblies having a main locking assembly between it and each of its corresponding counterweights; the main locking assembly includes a first locking state for loading the corresponding counterweight from the dumbbell seat onto the chuck assembly and a first unlocking state for unloading the corresponding counterweight from the chuck assembly onto the dumbbell seat; as well as, An auxiliary locking component is disposed between the chuck assembly and all counterweights, and is used to lock the counterweights loaded onto the chuck assembly by the main locking component when the dumbbell rack is disengaged from the dumbbell seat. The auxiliary locking component includes a second locked state and a second unlocked state.

2. A dumbbell according to claim 1, characterized in that, When the dumbbell rack is placed on the dumbbell seat, the auxiliary locking component switches to the second unlocked state, and in the second unlocked state, the auxiliary locking component releases the lock between all counterweights and chuck components; When the dumbbell rack is disengaged from the dumbbell seat, the auxiliary locking component switches to a second locking state, and in the second locking state, the auxiliary locking component locks the counterweight that is loaded onto the chuck assembly by the main locking component.

3. A dumbbell according to claim 1 or 2, characterized in that, The auxiliary locking component includes: The first locking part is provided on each of the counterweights; A plurality of second locking parts are located on the chuck assembly. Each second locking part includes a locking position for locking with its corresponding first locking part and an unlocking position for disengaging from locking with its corresponding first locking part. A first elastic reset component is used to drive each of the second locking parts from the unlocked position to the locked position; The dumbbell holder is provided with an unlocking part for driving all the second locking parts from the locked position to the unlocked position; When the dumbbell rack is placed on the dumbbell seat, the unlocking part drives all the second locking parts to move from the locked position to the unlocked position, and the auxiliary locking component switches to the second unlocked state, and the first elastic reset component is compressed, and the unlocking part releases the lock between all the first locking parts and the second locking parts; When the dumbbell rack is disengaged from the dumbbell seat, all the second locking parts move from the unlocked position to the locked position under the reset action of the first elastic reset component, and the auxiliary locking component switches to the second locking state, whereby the auxiliary locking component locks the counterweight that is loaded onto the chuck assembly by the main locking component.

4. A dumbbell according to claim 3, characterized in that, The chuck assembly is provided with a linkage component that slides along the vertical direction. When the dumbbell rack is placed on the dumbbell seat, the unlocking part drives the linkage to slide upward relative to the chuck assembly, and the linkage drives all the second locking parts to move from the locked position to the unlocked position; When the dumbbell rack disengages from the dumbbell seat, all the second locking parts move from the unlocked position to the locked position under the reset action of the first elastic reset component, and drive the linkage to move downward relative to the chuck assembly.

5. A dumbbell according to claim 4, characterized in that, The linkage component is provided with a plurality of first inclined surfaces, and each second locking part is provided with a second inclined surface, and each first inclined surface is fitted with its corresponding second inclined surface. When the dumbbell rack is placed on the dumbbell seat, the unlocking part drives the linkage to slide upward relative to the chuck assembly. The linkage slides relative to the second inclined plane through the first inclined plane, causing the second locking part to move from the locked position to the unlocked position. When the dumbbell rack disengages from the dumbbell seat, the second locking part moves from the unlocked position to the locked position under the reset action of the first elastic reset component. The second locking part slides relative to the second inclined surface through the first inclined surface, causing the linkage to slide downward and reset relative to the chuck assembly.

6. A dumbbell according to claim 5, characterized in that, The linkage includes a first sliding part located on the upper side, a driving part located on the lower side of the first sliding part, and a plurality of linkage parts located on the lower side of the first sliding part, with each first inclined surface located on its corresponding linkage part. When the dumbbell rack is placed on the dumbbell seat, the unlocking part abuts against the driving part, causing the linkage to slide upward relative to the chuck assembly.

7. A dumbbell according to claim 6, characterized in that, Each of the second locking parts is provided with a limiting hole and each of the second inclined surfaces is provided on the side wall of the corresponding limiting hole. Each of the linkage parts is located in the corresponding limiting hole and each of the first inclined surfaces is slidably connected to the corresponding second inclined surface.

8. A dumbbell according to claim 6, characterized in that, The chuck assembly is provided with a guide groove, the first sliding part is slidably disposed in the guide groove in the up-down direction, the driving part is located on the side of the first sliding part and extends from top to bottom, and the chuck assembly is provided with a clearance hole for the unlocking part to pass through and abut against the driving part.

9. A dumbbell according to claim 3, characterized in that, The auxiliary locking component also includes: The connecting part, each of the second locking parts is integrally formed or fixedly connected to the connecting part, the chuck assembly is provided with a mounting groove, and the second locking part and the connecting part are slidably disposed in the mounting groove.

10. A dumbbell according to claim 3, characterized in that, Each of the counterweights is provided with an upward-facing snap-fit ​​groove, and each of the first locking parts is a positioning groove located on the side wall of the snap-fit ​​groove.

11. A dumbbell according to claim 1, characterized in that, The chuck assembly consists of two sets, which are located on the left and right sides of the handle, respectively.

Images