CN218944252U - Dumbbell with adjustable weight - Google Patents

Abstract

The application relates to the field of fitness equipment, in particular to a dumbbell with adjustable weight. The dumbbell comprises two dumbbell sheet groups, wherein each dumbbell sheet group comprises at least two dumbbell sheets; a grip assembly, the grip assembly comprising: a handle tube, a sheet selecting mechanism and a gear setting mechanism; the handle tube is rotatably arranged; the plate selecting mechanism is connected with the handle tube and rotates synchronously with the handle tube, and is provided with a plurality of gears which rotate relative to the dumbbell plate group under the drive of the handle tube, and is connected with at least one dumbbell plate when rotating to a certain gear; the gear-fixing mechanism is connected with the plate selecting mechanism and rotates synchronously with the plate selecting mechanism, and the plate selecting mechanism always has a movement trend of rotating to a certain gear. According to the dumbbell, the gear setting mechanism is arranged, so that the dumbbell can be lifted, and the dumbbell selecting mechanism and the dumbbell can not be in a semi-hanging state, and the risk of injury caused by the fact that the dumbbell is separated when a user exercises is reduced.

Description

Dumbbell with adjustable weight

Technical Field

The application relates to the technical field of fitness equipment, in particular to a dumbbell with adjustable weight.

Background

The dumbbell is an auxiliary device for weight lifting and body building exercise, is mainly used for muscle strength training, and is popular with body building exercises because of small occupied space and convenient use.

Currently, the dumbbell on the market can be divided into two types of fixed weight and adjustable weight, wherein the dumbbell with adjustable weight has better applicability because the weight can be adjusted to meet the requirements of different training strengths. There is a weight adjustable dumbbell in the related art that includes a grip assembly and a dumbbell sheet set; the two ends of the holding rod assembly are provided with the slice selecting mechanisms, the slice selecting mechanisms can select or loosen at least one dumbbell slice by rotating to different gears, and the effect of adjusting the weight of the dumbbell is achieved by adjusting the number of the dumbbell slices connected with the holding rod assembly.

The inventors found through research that: in the above technology, when a user rotates the sheet selecting mechanism, if the user does not rotate to a set gear, namely, the sheet selecting mechanism rotates to a position between two adjacent gears, the sheet selecting mechanism and the dumbbell sheet are in a semi-engaged state, and at the moment, the holding rod assembly can drive the dumbbell sheet to be lifted together, but the dumbbell sheet is easy to be separated from the sheet selecting mechanism in the lifting process, so that the user is injured, and a certain potential safety hazard exists.

Disclosure of Invention

Aiming at the defects, the purpose of the application is to provide the dumbbell with adjustable weight, so that the dumbbell can not be in a semi-hanging state between the piece selecting mechanism and the dumbbell piece when being lifted, and the risk of injury caused by falling out of the dumbbell piece when a user exercises is reduced.

The application provides a dumbbell of adjustable weight adopts following technical scheme:

an adjustable weight dumbbell comprising:

two dumbbell sheet sets, each dumbbell sheet set comprising at least two dumbbell sheets;

the dumbbell piece group of a holding rod assembly, two the dumbbell piece group connect respectively in the both ends of holding rod assembly, just, the holding rod assembly includes:

a handle tube rotatably mounted;

the piece selecting mechanism is connected with the handle tube and rotates synchronously with the handle tube, and is provided with a plurality of gears which rotate relative to the dumbbell piece group under the drive of the handle tube, and is connected with at least one dumbbell piece when rotating to a certain gear; the method comprises the steps of,

and the gear-fixing mechanism is connected with the plate-selecting mechanism and rotates synchronously with the plate-selecting mechanism, and the gear-fixing mechanism enables the plate-selecting mechanism to always have a movement trend of rotating to a certain gear.

By adopting the technical scheme, the tablet selecting mechanism is linked with the handle tube, and a user can drive the tablet selecting mechanism to rotate to different gears by rotating the handle tube so as to connect dumbbell pieces with different weights, so that the weight of dumbbell training is adjusted; the sheet selecting mechanism is linked with the gear fixing mechanism, and the gear fixing mechanism drives the sheet selecting mechanism to continue rotating until the sheet selecting mechanism rotates to a set gear when the sheet selecting mechanism is positioned between two gears, namely, the sheet selecting mechanism and the dumbbell sheet combination are in a semi-engaged state, so that the risk of falling out caused by lifting the dumbbell sheet in the semi-engaged state is avoided.

In one possible implementation of the present application, the gear shifting mechanism includes:

the stop disc is connected with the handle tube and rotates synchronously with the handle tube, a plurality of positioning concave parts are arranged on the stop disc at intervals along the circumferential direction, and each positioning concave part corresponds to one gear respectively;

an inner end cap, the stopper disc rotatably mounted with respect to the inner end cap;

the elastic component is slidably arranged on the inner end cover and is abutted against the stop disc, and the elastic component always has a movement trend of being clamped into the positioning concave part;

when the elastic component is clamped into the positioning concave part, the sheet selecting mechanism rotates to the gear corresponding to the positioning concave part.

By adopting the technical scheme, the elastic component applies force to the stop disc, and the stop disc rotates relative to the inner end cover in the process of being clamped into the positioning concave part by the elastic component, and when the positioning concave part corresponds to the rotation gear of the plate selecting mechanism and the elastic component is clamped into the positioning concave part, the plate selecting mechanism correspondingly rotates to the gear corresponding to the positioning concave part.

In one possible implementation of the present application, the elastic component is disposed at least two at intervals along a circumferential direction of the inner end cover.

Through adopting above-mentioned technical scheme, through a plurality of elastic component resultant force effect locking dish, improve the effort of elastic component to the locking dish, guarantee that elastic component can block smoothly in the positioning concave part.

In one possible implementation of the present application, a sliding protrusion is formed between two adjacent positioning recesses, and a line contact is formed between the elastic component and the sliding protrusion.

Through adopting above-mentioned technical scheme, form the line contact between elastic component and the protruding, make elastic component and slide and have the trend of relative movement all the time between the protruding, make elastic component can fall into in the positioning concave part.

In one possible implementation of the application, the inner end cap is provided with a sliding groove, and the elastic component is slidably arranged in the sliding groove; wherein, the elastic component includes:

an abutment abutting the stopper disk; the method comprises the steps of,

and the elastic piece is supported between the abutting piece and the bottom of the sliding groove.

By adopting the technical scheme, the elastic piece applies force to the stop disc through the abutting piece, so that the stop disc rotates relative to the inner end cover until the abutting piece is clamped into the positioning concave part.

In one possible implementation of the present application, the abutment member includes a connection surface, the elastic member includes a spring, the spring abuts between the connection surface and the sliding groove, and a cross-sectional shape of the spring is adapted to the connection surface.

Through adopting above-mentioned technical scheme, set up the elastic component into the spring of cross-section shape and junction surface looks adaptation, can make the elastic component exert force on the butt piece uniformly, make the butt piece be difficult for deflecting the card in the slip motion in-process and stop.

In one possible implementation of the present application, the inner end cap is provided with a guide hole, the elastic component is slidably mounted in the guide hole, the elastic component is of an integral structure, and the elastic component includes:

an abutment abutting the stopper disk; the method comprises the steps of,

the elastic piece is connected with and arranged on the periphery of the abutting piece, a gap is arranged between the elastic piece and the abutting piece, and the elastic piece is in sliding abutting connection in the guide hole;

the elastic piece is compressed under the action of the guide hole to move away from the stop disc, and the elastic piece is rebounded under the action of elastic potential energy to move towards the stop disc.

By adopting the technical scheme, the abutting piece is driven to slide back and forth along the guide hole by compression or rebound of the elastic piece, so that the abutting piece always abuts against the stop disc.

In one possible implementation of the present application, the guide hole includes a contracting cavity and a restoring cavity that are communicated, the restoring cavity is larger in size than the contracting cavity, and the elastic member is compressed to move toward the contracting cavity or rebound to move toward the restoring cavity.

Through adopting above-mentioned technical scheme, when the elastic component moved towards the shrink chamber, the shrink chamber compressed tightly the elastic component and made the elastic component have the elastic potential energy of resilience, and the elastic component then acts on the locking dish through the butt piece to promote the locking dish to rotate until the butt piece falls into the location concave part, the elastic component resets in the shrink chamber this moment.

In one possible implementation of the present application, the grip assembly further includes:

the stop mechanism is movably arranged on the inner end cover and locks the rotation of the stop disc or unlocks the rotation of the stop disc under the action of an external unlocking piece.

By adopting the technical scheme, the stop mechanism can lock or unlock the rotation of the stop disc, and the stop mechanism can unlock the rotation of the stop disc to adjust gears; when the dumbbell is lifted, the stop mechanism can lock the rotation of the stop disc, so that the tablet selecting mechanism is correspondingly fixed on the adjusted gear.

In one possible implementation of the present application, the dumbbell further comprises:

the dumbbell seat is arranged in the dumbbell sheet group, an unlocking piece is arranged on the dumbbell seat, and when the holding rod assembly is arranged on the dumbbell seat, the unlocking piece acts on the stop mechanism to unlock the rotation of the stop disc.

Through adopting above-mentioned technical scheme, when the holding rod assembly was arranged in the dumbbell seat, the rotation of locking dish was unlocked, and the user can rotate the handle pipe wantonly and carry out gear adjustment.

Drawings

FIG. 1 is a schematic diagram of a dumbbell in an embodiment of this application;

FIG. 2 is an exploded view of a dumbbell in an embodiment of this application;

FIG. 3 is an exploded view of the grip assembly of the present embodiment;

FIG. 4 is a schematic view of the structure of a handle tube in an embodiment of the present application;

FIG. 5 is a schematic view of a first embodiment of a gear shifting mechanism according to an example of the present application;

FIG. 6 is a cross-sectional view of the inner end cap of the first embodiment of the shift mechanism of the present application;

FIG. 7 is a schematic view of the structure of the elastic member of the first embodiment of the gear shifting mechanism according to the embodiment of the present application;

FIGS. 8A-8B are schematic views illustrating the cooperation of the stopper disc and the elastic member in the first embodiment of the gear shifting mechanism according to the present embodiment;

FIG. 9 is a schematic view of a second implementation of a gear shifting mechanism in an embodiment of the present application;

FIG. 10 is a cross-sectional view of an inner end cap of a second embodiment of a gear shifting mechanism in an embodiment of the present application;

FIG. 11 is a schematic view of the structure of the elastic assembly of the second embodiment of the gear shifting mechanism according to the present embodiment;

FIGS. 12A-12B are schematic views illustrating the cooperation of the stopper disc and the elastic member in the second embodiment of the gear shifting mechanism according to the present embodiment;

FIG. 13 is a schematic illustration of the fit of a hanging plate with a dumbbell plate in embodiments of this application;

FIG. 14 is a schematic diagram of the cooperation of a hanging assembly and a dumbbell set in an embodiment of this application;

FIG. 15 is an enlarged view of a portion A of FIG. 8A;

fig. 16 is a partially enlarged view of the portion B in fig. 8B.

Detailed Description

The technical features and advantages of the present application are described in more detail below with reference to the accompanying drawings so that the advantages and features of the present application may be more readily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of the present utility model.

The embodiment of the application provides a dumbbell of adjustable weight, through setting up gear mechanism in holding the pole assembly, avoid the user to adjust the gear because rotate not in place, lead to the dumbbell to be mentionedly under holding the state that is in half between pole assembly and the dumbbell piece group, reduced the dumbbell piece and deviate from the injury risk that causes the user.

In order to achieve the above object, the basic idea of the embodiment of the present application is as follows:

referring to fig. 1-3, an adjustable weight dumbbell, comprising:

two dumbbell sheet sets 200, each dumbbell sheet set 200 including at least two dumbbell sheets;

the holding rod assembly 100, two dumbbell slice groups 200 are respectively connected to two ends of the holding rod assembly 100; the grip assembly 100 further includes: a handle tube 120 and a tab selection mechanism 110; wherein, handle tube 120 is rotatably installed, and plate selecting mechanism 110 is connected with handle tube 120 and rotates synchronously with handle tube 120, and plate selecting mechanism 110 rotates relative to dumbbell sheet group 200 under the drive of handle tube 120 to realize gear adjustment, and at least one dumbbell sheet is engaged when plate selecting mechanism 110 rotates to a certain gear relative to dumbbell sheet group 200. The user rotates the handle tube 120 to allow the grip assembly 100 to engage different weight dumbbell combinations in different gear positions.

Referring to FIG. 3, the grip assembly 100 further includes: and the gear fixing mechanism 130 is connected with the plate selecting mechanism 110 and rotates synchronously with the plate selecting mechanism 110, and the gear fixing mechanism 130 enables the plate selecting mechanism 110 to always have a movement trend of rotating to a certain gear. When the user rotates the handle tube 120 to adjust the gear, the user may be in a semi-engaged state between the selecting mechanism 110 and the dumbbell sheet 200 due to the fact that the user cannot rotate the handle tube, and at this time, the gear shifting mechanism 130 keeps the selecting mechanism 110 in a continuous rotating trend until the selecting mechanism 110 rotates to a certain set gear, so that the dumbbell is prevented from being still in a semi-engaged state when lifted.

The shift mechanism 130 may include: the locking disc 131, the inner end cover 132 and the elastic component 133, the locking disc 131 is connected with the handle tube 120 and rotates synchronously with the handle tube 120, the locking disc 131 is linked with the tablet selecting mechanism 110 through the handle tube 120, and when the locking disc 131 rotates, the tablet selecting mechanism 110 can rotate synchronously under the drive of the handle tube 120.

Referring to fig. 4 to 5, the handle tube 120 may include a grip part 121, and first mounting parts 122 may be provided at both ends of the grip part 121, the first mounting parts 122 being used to connect the stopper disc 131 so that the stopper disc 131 rotates in synchronization with the handle tube 120; the first mounting part 122 may include: the mounting ring 1221, at least one limit protruding 1222 extends out of the mounting ring 1221 along the circumferential direction, the center of the stop disc 131 is provided with a mounting hole 1314, the mounting hole 1314 is provided with a limit groove 1315 corresponding to the limit protruding 1222, the stop disc 131 is sleeved on the mounting ring 1221 through the mounting hole 1314, and the limit protruding 1222 is correspondingly clamped into the limit groove 1315, so that the stop disc 131 and the handle tube 120 are relatively fixed along the circumferential direction.

Referring to fig. 5, a plurality of positioning recesses 1311 are circumferentially arranged on the stopper disc 131 at intervals, each positioning recess 1311 corresponds to one gear of the plate selecting mechanism 110, and a sliding protrusion 1312 is formed between two adjacent positioning recesses 1311.

The stop disc 131 is rotatably installed relative to the inner end cover 132, the inner end cover 132 is an opposite fixing piece, the elastic component 133 is slidably installed on the inner end cover 132, and the elastic component 133 is slidably installed relative to the inner end cover 132 and always abuts against the stop disc 131. The elastic component 133 always has a movement trend of being blocked into the positioning concave portion 1311, and when the elastic component 133 is blocked into the positioning concave portion 1311, the tablet selecting mechanism 110 is driven to rotate to a corresponding gear.

Referring to fig. 3, the grip assembly 100 may include a central shaft 150, the handle tube 120 is sleeved on the central shaft 150 and can rotate relative to the central shaft 150, and the inner end cap 132 is fixedly connected to the central shaft 150, so that the stop disc 131 can rotate relative to the inner end cap 132.

Referring to fig. 5-8, a first implementation of the gear shifting mechanism in this embodiment is shown:

the inner end cover 132 is provided with a first sliding groove 1321 along the radial direction, the elastic component 133 is slidably mounted in the first sliding groove 1321, and one end of the first sliding groove 1321 is opened to be communicated with the stop disc 132.

The elastic member 133 may include: the abutting piece 1331 and the first elastic piece 1332, wherein the first elastic piece 1332 is supported between the groove bottom of the first sliding groove 1321 and the abutting piece 1331, and is forced to the stop disc 131 by the abutting piece 1331. The abutting part 1331 uniformly undulates at the abutting part with the stopper disk 131, so that the abutting part 1331 reciprocally slides along the first sliding groove 1321.

Specifically, referring to fig. 7, the abutment 1331 may further include: an abutment 13311, a connection 13312, and a guide 13313; the abutment 13311 may be a convex surface, such as a cylindrical surface, where the abutment 13311 always abuts against the stop disc 131; when the abutting piece 1331 abuts against the sliding protrusion 1312, a line contact is formed between the abutting piece 13311 and the sliding protrusion 1312, the line contact kinematic pair enables the abutting piece 1331 and the sliding protrusion 1312 to have a relative movement trend, and the abutting piece 1331 and the sliding protrusion 1312 are enabled to move relatively along the tangential direction of the contact line by combining the acting force of the first elastic piece 1332, so that the stop disc 131 is driven to rotate relative to the abutting piece 1331 until the abutting piece 1331 is clamped into the positioning concave portion 1311. The slip boss 1312 may be generally pointed to accelerate relative slip between the abutment 13311 and the slip boss 1312.

The positioning concave portion 1311 and the abutting piece 13311 may form a surface contact, so that the abutting piece 13311 may be stably engaged in the positioning concave portion 1311, and meanwhile, the positioning concave portion 1311 may have a smoothly transitional curved surface structure, so as to reduce sliding friction between the abutting piece 13311 and the positioning concave portion 1311, and thus, when the handle tube 120 rotates to adjust the gear, the abutting piece 1331 may be smoothly separated from the positioning concave portion 1311.

Referring to fig. 7, the connecting portion 13312 may be a plane, the first elastic member 1332 may be a spring, two ends of the spring respectively abut against the connecting portion 13312 and the bottom of the first sliding groove 1321, and the spring makes the abutting member 1331 have a tendency to move towards the stop disc 131 in the first sliding groove 1321. Preferably, the cross-sectional shape of the spring may be adapted to the cross-sectional shape of the connecting portion 13312, so that the abutting piece 1331 has a more uniform bearing force, and is not deflected or jammed due to uneven stress in the sliding motion. Illustratively, if the cross section of the connecting portion 13312 is square, the springs may be square springs accordingly.

Referring to fig. 7, the guiding portion 13313 may be a guiding post disposed at one side of the abutting piece 1331, the side wall of the first sliding groove 1321 is provided with a guiding groove 1322, and the guiding post is clamped in the guiding groove 1322 to guide the sliding movement of the abutting piece 1331.

Fig. 8 is a schematic diagram illustrating the cooperation between the elastic component 133 and the stop disc 131 in the present embodiment, referring to fig. 8A, when the abutting piece 1331 abuts against the sliding protrusion 1312, the first elastic piece 1332 applies force to the stop disc 131 through the abutting piece 1331, so that the stop disc 131 has a tendency to rotate continuously relative to the inner end cover 132; referring to fig. 8B, when the stopper disc 131 rotates until the abutting piece 1331 is snapped into the positioning recess 1332, the stopper disc 131 stops rotating.

Referring to fig. 9-12, a second implementation of the gear shifting mechanism in this embodiment is shown:

the inner end cover 132 is radially provided with a guide hole 1323, the guide hole 1323 comprises a shrinkage cavity 13231 and a reset cavity 13232, the reset cavity 13232 is communicated with the shrinkage cavity 13231 and the stop disc 131, and the caliber of the reset cavity 13232 is larger than that of the shrinkage cavity 13231.

The elastic component 133 is an integral structure, comprising: the abutting piece 1331, the connecting portion 1333, and the elastic piece 1332, the elastic piece 1332 being provided on the circumferential side of the abutting piece 1331 and being connected to the abutting piece 1331 through the connecting portion 1333. The elastic member 1332 may be provided in plurality along the circumferential side of the abutting member 1331, and in this embodiment, two elastic members 1332 are symmetrically provided at the circumferential side of the abutting member 1331.

The elastic piece 1332 further includes a reset segment 13321 and a connecting segment 13322 integrally formed on the circumferential side of the abutting piece 1331, a gap is formed between the reset segment 13321 and the abutting piece 1331, the reset segment 13321 abuts against the inner wall of the reset cavity 13232, the connecting segment 13322 connects the reset segment 13321 and the connecting portion 1333, and the reset segment 13321 can be compressed towards the abutting piece 1331 under the action of external force and can rebound and reset under the action of elastic force.

Referring to fig. 12A-12B, when the sliding protrusion 1312 abuts against the abutment 1331, the elastic component 133 slides in the direction away from the stop disc 131 in the guide hole 1321, the abutment 1331 retreats into the shrinkage cavity 13231, the reset segment 13321 moves towards the shrinkage cavity 13231 and compresses and contracts against the abutment 1331 under the limit of the inner wall of the reset cavity 13232, so that elastic potential energy of resilience is provided; the spring potential energy biases the abutting piece 1331 toward the sliding boss 1312, thereby pushing the stopper disc 131 to rotate until the reset segment 13321 is reset in the reset cavity 13232, and at this time, the abutting piece 1331 is clamped into the positioning recess 1311.

Preferably, at least two elastic assemblies 133 may be arranged at intervals along the circumferential direction of the inner end cover 132, and the plurality of elastic assemblies 133 apply force to the stop disc 131 together, so that the force of the elastic assemblies 133 on the stop disc 131 is improved, and the elastic assemblies 133 can be further ensured to be clamped into the positioning concave portions 1311.

In some possible embodiments, the plate selecting mechanism 110 may include two plate hanging assemblies symmetrically disposed at two ends of the handle tube 120, where each plate hanging assembly includes a plurality of plates that are adjacently arranged and synchronously rotate, and the number of plates is adapted to the number of dumbbell plates, and the plates can be engaged with or disengaged from their corresponding dumbbell plates during rotation. Referring to fig. 4, the two ends of the handle tube 120 may be provided with second mounting portions 123, the second mounting portions 123 may be prismatic rings disposed on the handle tube 120, and the hanging pieces are correspondingly provided with prismatic holes, and rotate synchronously with the handle tube 120 through the cooperation of the prismatic holes and the prismatic rings.

Referring to fig. 13, the hanging of the hanging piece 111 and the dumbbell piece 211 is specifically achieved by the following scheme: each hanging piece 111 is provided with an arc-shaped hanging strip 1111 along the circumferential direction, and the hanging strips 1111 on adjacent hanging pieces are gradually increased or decreased on one group of hanging piece components. Each dumbbell piece 211 is provided with a U-shaped groove 2111 for clamping the hanging piece 111, meanwhile, a positioning block 2112 is arranged on the inner wall of the U-shaped groove 2111, the hanging piece 111 is rotated, the hanging strip 1111 is clamped between the positioning block 2112 and the bottom wall of the U-shaped groove 2111 in a rotating mode, and the hanging piece 111 is hung with the dumbbell piece 211. When the end of hanging strip 1111 is clamped into U-shaped groove 2111 and tangent to the cambered surface of positioning block 2112, hanging piece 111 is half-hung with dumbbell piece 211.

The operation of the gear mechanism 130 when the hanging plate is rotated to engage or disengage the dumbbell plate will be described in detail below with reference to fig. 14, using a hanging plate assembly comprising four hanging plates.

Each hanger assembly is centered on a handle tube 120, and comprises, in order from inside to outside: the first hanging piece 111a, the second hanging piece 111b, the third hanging piece 111c and the fourth hanging piece 111d are symmetrically provided with two hanging strips on each hanging piece. Wherein, the central angle corresponding to the hanging strip on the first hanging piece 111a is 144 degrees, the central angle corresponding to the hanging strip on the second hanging piece 111b is 108 degrees, the central angle corresponding to the hanging strip on the third hanging piece 111c is 72 degrees, and the central angle corresponding to the hanging strip on the fourth hanging piece 111d is 36 degrees; the dumbbell sheet group 200 includes a first dumbbell sheet 211a, a second dumbbell sheet 211b, a third dumbbell sheet 211c, and a fourth dumbbell sheet 211d that correspond from inside to outside; the weight of each dumbbell sheet may be the same or different; the central angle between two adjacent positioning concave parts 1311 on the stop disc 131 is 36 degrees, and the dumbbell of this embodiment has five gears which are adjusted along with the rotation of the hanging piece assembly. The five gears are respectively:

neutral (no catch): the grip assembly 100 is placed on the dumbbell set 200 empty, and at this time, the hanging piece assembly does not hang any dumbbell piece;

first gear (two dumbbell pieces are hung): turning the handle tube 120 from the neutral position by 36 ° in a certain direction (counterclockwise or clockwise), the first hanging piece 111a engages the first dumbbell piece 211a;

second gear (engage four dumbbell plates): continuing to rotate the handle tube 120 by 36 degrees, the first hanging piece 111a is hung on the first dumbbell piece 211a, and the second hanging piece 111b is hung on the two second dumbbell pieces 211b;

third gear (engage six dumbbell plates): the handle tube 120 is continuously rotated by 36 degrees, the first hanging piece 111a is hung on the first dumbbell piece 211a, the second hanging piece 111b is hung on the two second dumbbell pieces 211b, and meanwhile, the third hanging piece 111c is hung on the two third dumbbell pieces 211c;

fourth gear (eight dumbbell pieces engaged): the handle tube 120 is continuously rotated by 36 degrees, the first hanging piece 111a is hung on the first dumbbell piece 211a, the second hanging piece 111b is hung on the two second dumbbell pieces 211b, the third hanging piece 111c is hung on the two third dumbbell pieces 211c, and meanwhile, the fourth hanging piece 111d is hung on the fourth dumbbell piece 211d.

When the hanging piece assembly is in the five gear positions, the elastic assembly 133 is clamped in the positioning concave portion 1311, refer to fig. 8B and 12B, and the dumbbell can be lifted for exercise at this time; if the hanging piece assembly is between the two adjacent gears, referring to fig. 8A and 12A, the elastic assembly 133 abuts against the sliding protrusion 1312, the elastic assembly 133 pushes the stop disc 131 to rotate continuously under elastic potential energy, and the stop disc 131 drives the hanging piece assembly to rotate through the handle tube 120 until the elastic assembly 133 is clamped into the positioning recess 1311 adjacent to the sliding protrusion 1312, and at this time, the hanging piece assembly also rotates to the corresponding gear, and the hanging piece and the dumbbell form a hanging state.

The positioning recesses 1311 may be uniformly arranged on the outer circumferential surface of the stopper disk 131. In this embodiment, ten positioning recesses 1311 are provided along the circumferential direction of the stopper disk 131, and each time the stopper disk 131 rotates one turn, the cyclic adjustment of the two-wheel gear can be achieved.

Referring to fig. 3, the grip assembly 100 may further include: and a stopping mechanism 140, wherein the stopping mechanism 140 is used for locking or unlocking the rotation of the stopping disc 131. The stop mechanism 140 is slidably mounted on the inner end cap 132, and the stop mechanism 140 includes: a rotation stopper 142 and a second elastic member 142.

Referring to fig. 5 and 9, the rotation stopping groove 1315 is formed on the stopping disc 131, and when the rotation stopping member 142 is locked into the rotation stopping groove 1315, the rotation of the stopping disc 131 is locked, the stopping disc 131 is fixed relative to the inner end cover 132, and the rotation of the handle tube 120 is also synchronously locked; when the rotation stopper 142 is disengaged from the rotation stopper groove 1315, the stopper plate 131 can be rotated with respect to the inner cap 132, and the rotation of the handle tube 120 is unlocked.

Referring to fig. 6 and 10, the inner end cover 132 is provided with a second sliding groove 1324 along a radial direction, the rotation stopping member 142 is slidably mounted in the second sliding groove 1324, the second elastic member 142 is supported between a bottom of the second sliding groove 1324 and the rotation stopping member 142, and the rotation stopping member 142 always has a movement tendency to be locked into the rotation stopping groove 1315 under the action of the second elastic member 142.

Referring to fig. 1-2, the dumbbell of this embodiment further includes a dumbbell seat 300, wherein the dumbbell seat 300 is used for placing the dumbbell sheet group 200, an unlocking member 310 is disposed on the dumbbell seat 300, and the unlocking member 310 acts on the rotation stopping member 142 to enable the rotation stopping member 142 to withdraw from the rotation stopping groove 1315 so as to unlock the rotation of the stop disc 131.

Referring to fig. 15-16, the unlocking member 310 may be an unlocking protrusion provided on the dumbbell seat 300, when the handle assembly is placed on the dumbbell seat 300, the unlocking protrusion abuts against the rotation stopping member 142 through the bottom opening of the second sliding groove 1324, so that the rotation stopping member 142 overcomes the resistance of the second elastic member 142 to move toward the axis direction of the inner end cover 132, and the rotation stopping member 142 is disengaged from the rotation stopping groove 1315, at this time, the stopping disc 131 may rotate relative to the inner end cover 132, and a user may perform gear adjustment by rotating the handle tube 120; when the grip assembly 100 is lifted from the dumbbell seat 300, the unlocking protrusion is withdrawn from the second sliding groove 1324, and the rotation stopper 142 is engaged into the rotation stopper groove 1315 by the second elastic member 142, thereby locking the rotation of the stopper disk 131.

Preferably, the rotation stopping groove 1315 may be provided on the inner circumferential surface of the stopper disc 131, and the rotation stopping groove 1315 is arranged corresponding to the gear position of the selector mechanism 110; when the handle tube 120 is rotated to adjust the gear, the stop disc 131 correspondingly rotates to enable the elastic assembly 133 to be clamped into the positioning concave portion 1311 corresponding to the gear, the rotation stopping groove 1315 just rotates to a position corresponding to the rotation stopping piece 142, at this time, the dumbbell is lifted from the dumbbell seat 300, and the rotation stopping piece 142 is clamped into the rotation stopping groove 1315 under the action of the second elastic piece 142, so that the rotation of the stop disc 131 is locked.

The dumbbell with adjustable weight of the embodiment of the application has the following implementation principle:

when the holding rod assembly 100 is placed on the dumbbell seat 300 to adjust the gear, the unlocking protrusion ejects the rotation stopping piece 142 out of the rotation stopping groove 1315, rotation of the stopping disc 131 is unlocked, and a user can drive the tab selecting mechanism 110 to synchronously rotate through rotating the handle tube 120 to adjust the gear, so that the stopping disc 131 synchronously rotates along with the handle tube 120. In the rotation process of the stop disc 131, when the hanging piece and the dumbbell piece are in a semi-hanging state, the elastic component 133 enables the stop disc 131 to continue to rotate until the elastic component 133 is clamped into the positioning concave part 1311, at the moment, the hanging piece is hung on the dumbbell piece, and the gear is adjusted to be in place; at this time, the dumbbell is lifted up, and the rotation stopper 142 is caught in the corresponding rotation stopper groove 1315, thereby locking the rotation of the stopper disk 131, and thus exercise can be performed.

The foregoing description is only exemplary embodiments of the present application and is not intended to limit the scope of the present application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the present application.

Claims (10)

1. An adjustable weight dumbbell, comprising:

two dumbbell sheet sets (200), each dumbbell sheet set (200) comprising at least two dumbbell sheets;

the two dumbbell piece groups (200) are respectively connected to two ends of the holding rod assembly (100), and the holding rod assembly (100) comprises:

a handle tube (120), the handle tube (120) being rotatably mounted;

the sheet selecting mechanism (110) is connected with the handle tube (120) and rotates synchronously with the handle tube (120), the sheet selecting mechanism (110) is provided with a plurality of gears which rotate relative to the dumbbell sheet group (200) under the drive of the handle tube (120), and the sheet selecting mechanism (110) is connected with at least one dumbbell sheet when rotating to a certain gear; the method comprises the steps of,

and the gear-fixing mechanism (130), wherein the gear-fixing mechanism (130) is connected with the plate-selecting mechanism (110) and rotates synchronously with the plate-selecting mechanism (110), and the gear-fixing mechanism (130) enables the plate-selecting mechanism (110) to always have a movement trend of rotating to a certain gear.

2. The dumbbell of claim 1, wherein the shift mechanism (130) comprises:

the locking disc (131) is connected with the handle tube (120) and rotates synchronously with the handle tube (120), a plurality of positioning concave parts (1311) are arranged on the locking disc (131) at intervals along the circumferential direction, and each positioning concave part (1311) corresponds to one gear;

an inner end cap (132), the stopper disk (131) being rotatably mounted with respect to the inner end cap (132);

an elastic component (133), wherein the elastic component (133) is slidably mounted on the inner end cover (132), the elastic component (133) is abutted against the stop disc (131), and the elastic component (133) always has a movement trend of being clamped into the positioning concave part (1311);

when the elastic component (133) is clamped into the positioning concave part (1311), the sheet selecting mechanism (110) correspondingly rotates to the gear corresponding to the positioning concave part (1311).

3. Dumbbell according to claim 2, wherein the elastic means (133) are arranged at least two at intervals along the circumference of the inner end cap (132).

4. A dumbbell according to claim 2 or 3, characterized in that a slip protrusion (1312) is formed between two adjacent positioning recesses (1311), and that a line contact is formed between the elastic member (133) and the slip protrusion (1312).

5. The dumbbell of claim 4, wherein the inner end cap (132) is provided with a sliding groove (1321), the elastic assembly (133) being slidably mounted within the sliding groove (1321); wherein the elastic assembly (133) comprises:

an abutting piece (1331), wherein the abutting piece (1331) abuts against the stop disc (131); the method comprises the steps of,

and an elastic member (1332), wherein the elastic member (1332) is supported between the abutting member (1331) and the bottom of the sliding groove (1321).

6. The dumbbell of claim 5, wherein the abutting member (1331) includes a connection surface, the elastic member (1332) includes a spring, the spring abuts between the connection surface and the sliding groove (1321), and a cross-sectional shape of the spring is adapted to the connection surface.

7. The dumbbell of claim 4, wherein the inner end cap (132) is provided with a guide hole (1323), the elastic assembly (133) being slidably mounted within the guide hole (1323); the elastic component (133) is of an integral structure, and the elastic component (133) comprises:

an abutment (1331), the abutment (1331) abutting the stopper disc (131); the method comprises the steps of,

an elastic member (1332), wherein the elastic member (1332) is connected and arranged on the periphery side of the abutting member (1331), a gap is arranged between the elastic member (1332) and the abutting member (1331), and the elastic member (1332) is in sliding abutting connection with the guide hole (1323);

wherein the elastic member (1332) is compressed by the guide hole (1323) to move away from the stop disc (131), and the elastic member (1332) is rebounded by elastic potential energy to move towards the stop disc (131).

8. The dumbbell of claim 7, wherein the guide hole (1323) includes a shrinkage cavity (13231) and a return cavity (13232) that are in communication, the return cavity (13232) being larger in size than the shrinkage cavity (13231), the resilient member (1332) compressing to move toward the shrinkage cavity (13231) or rebounding to move toward the return cavity (13232).

9. The dumbbell of claim 2, wherein the grip assembly (100) further comprises:

the stop mechanism (140) is movably arranged on the inner end cover (132), and the stop mechanism (140) locks the rotation of the stop disc (131) or unlocks the rotation of the stop disc (131) under the action of an external unlocking piece.

10. The dumbbell of claim 9, further comprising:

the dumbbell seat (300), dumbbell sheet group (200) place in dumbbell seat (300), just, dumbbell seat (300) set up unblock piece (310), grip assembly (100) are arranged in when dumbbell seat (300), unblock piece (310) are used in stop mechanism (140) in order to unblock stop disk (131) rotate.

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