CN219815167U - Dumbbell - Google Patents

Abstract

The utility model provides a dumbbell, comprising: the dumbbell plate comprises a plurality of dumbbell plates, a bearing part and an operating part, wherein the operating part is rotatably connected relative to the bearing part so that the bearing part can correspondingly bear one or more dumbbell plates in a controlled manner; the dumbbell also comprises a limiting disc connected with the operation part, and a first positioning piece and a second positioning piece connected with the bearing part; the outside of limit carousel includes a plurality of spacing grooves along circumference arrangement, the inboard of limit carousel includes a plurality of limit grooves along circumference arrangement, first setting element with spacing groove detachably connects, the second setting element with spacing groove detachably connects. By the aid of the technical scheme, the risk of dumbbell sliding down can be reduced.

Description

Dumbbell

Technical Field

The utility model relates to the field of fitness equipment, in particular to a dumbbell.

Background

The dumbbell is a simple device for strengthening muscle strength training, has a certain weight, and is convenient to use and simple in movement form; when a body-building person exercises with the dumbbell, the person needs to exercise with respect to different muscles, and different weights of the dumbbell are needed under different actions, but the person buying a plurality of dumbbell is inconvenient in that the dumbbell occupies a large space and the weight of the dumbbell is replaced. Weight-adjustable dumbbells have been developed in the market at present, for example, chinese patent application CN207769061U discloses a weight-adjustable dumbbell, which comprises a dumbbell bar assembly, a dumbbell seat and a plurality of dumbbell pieces disposed on two sides of the dumbbell seat, wherein the dumbbell bar assembly comprises a handle assembly, a bearing assembly disposed on two sides of the handle assembly, and two hanging pieces movably connected to two ends of the handle assembly, and the two hanging pieces are driven by the handle assembly to approach or separate from each other.

However, if the dumbbell is set according to the gear, as in the stopper 3133 of fig. 5, the dumbbell is directly taken up by the user and used when the user does not rotate to the gear, if the handle assembly is reversed during the use, the hanger is retracted, so that the dumbbell slides down, and the user is injured.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a dumbbell.

In order to solve the technical problems, the utility model provides a dumbbell, which comprises: the dumbbell plate comprises a plurality of dumbbell plates, a bearing part and an operating part, wherein the operating part is rotatably connected relative to the bearing part so that the bearing part can correspondingly bear one or more dumbbell plates in a controlled manner; the dumbbell also comprises a limiting disc connected with the operation part, and a first positioning piece and a second positioning piece connected with the bearing part; the outer side of the limiting disc comprises a plurality of limiting grooves which are arranged along the circumferential direction, the inner side of the limiting disc comprises a plurality of limiting grooves which are arranged along the circumferential direction, and the central angle between two adjacent limiting grooves is larger than the central angle between two adjacent limiting grooves; the first locating piece is detachably connected with the limiting groove, and the second locating piece is detachably connected with the limiting groove.

In a more preferred embodiment, the first positioning member comprises a resilient pin; when the limiting disc rotates relative to the bearing part, the elastic pin can be correspondingly embedded into one of the limiting grooves.

In a preferred embodiment, the second positioning member includes a rotation limiting pin body and an elastic member; the elastic piece is abutted between the rotation limiting pin body and the bearing part, the rotation limiting pin body can be controlled to move between a locking position and an unlocking position, when the rotation limiting pin body is located at the locking position, the rotation limiting pin body is at least connected with two adjacent rotation limiting grooves, when the rotation limiting pin body is located at the unlocking position, the rotation limiting pin body is disconnected with the rotation limiting grooves, and elastic force is accumulated by the elastic piece.

In a more preferred embodiment, the central angle between two adjacent rotation limiting grooves is 8-10 degrees.

In a more preferred embodiment, the rotation limiting pin comprises a first wall, a second wall and a connecting wall connected between the first wall and the second wall; the side, facing the second wall body, of the first wall body comprises two rotation limiting teeth which are respectively connected with the rotation limiting grooves in an inserting mode; one side of the first wall body, which is far away from the second wall body, is connected with the elastic piece; the second wall body is used for controlled driving the first wall body to move.

In a preferred embodiment, the dumbbell further comprises a base; the base body comprises a salient point part; when the bearing part is placed on the base body, the bump part correspondingly abuts against the second wall body so that the rotation limiting pin body moves from the locking position to the unlocking position.

In a more preferred embodiment, the operation part further comprises one or more limiting holes; the bearing part further comprises; the ball can be correspondingly connected to the limit hole.

In a more preferred embodiment, the limiting hole is located at an end face of the limiting disc; or, the operation part further comprises a rotation positioning plate connected with the end face of the limiting disc, and the limiting hole is positioned on the rotation positioning plate.

In a more preferred embodiment, the limiting hole is positioned on the end face of the limiting disc, the dumbbell further comprises an end cover, the end cover comprises a positioning part, and the limiting disc is clamped with the positioning part;

or, the operation part further comprises a rotation positioning plate connected with the end face of the limit disc, the limit hole is positioned on the rotation positioning plate, the dumbbell further comprises an end cover, the end cover comprises a positioning part, and the limit disc and the rotation positioning plate are respectively clamped with the positioning part.

In a more preferred embodiment, the dumbbell comprises two of the carrying portions; the two bearing parts are respectively connected with the two ends of the operation part; the operation portion comprises a handle, a shaft rod and two sliding parts, the bearing portion is respectively connected with a plurality of dumbbell plates in a hanging mode, the handle and the sliding parts are sleeved on the shaft rod, the two sliding parts are respectively located at two ends of the handle, the handle is fixedly connected with the limiting turntable, two ends of the shaft rod are fixedly connected with the bearing portion, and the handle rotates around the axis of the shaft rod to drive the two sliding parts to be close to or far away from each other so as to be correspondingly connected with the dumbbell plates.

Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

the dumbbell is characterized in that the central angle between two adjacent limiting grooves is larger than the central angle between two adjacent rotation limiting grooves through the synergistic effect of the first locating piece, the second locating piece, the limiting grooves and the rotation limiting grooves; therefore, when the first positioning piece is not connected with the limit groove (i.e. is not rotated to the gear), the second positioning piece can be connected with the limit groove to prevent the dumbbell from sliding off;

the second positioning piece comprises a rotation limiting pin body and an elastic piece; the elastic piece is abutted between the rotation limiting pin body and the bearing part, the rotation limiting pin body can be controlled to move between a locking position and an unlocking position, when the rotation limiting pin body is positioned at the locking position, the rotation limiting pin body is at least connected with two adjacent rotation limiting grooves, when the rotation limiting pin body is positioned at the unlocking position, the rotation limiting pin body is disconnected with the rotation limiting grooves, and the elastic piece accumulates elastic force; the second positioning piece is used for unlocking and locking the limiting disc, and the structure is simple;

the central angle between two adjacent rotation limiting grooves is 8-10 degrees; the rotation limiting grooves are denser, and the safety is higher;

the rotation limiting pin body comprises a first wall body, a second wall body and a connecting wall connected between the first wall body and the second wall body; the side, facing the second wall body, of the first wall body comprises two rotation limiting teeth which are respectively connected with the rotation limiting grooves in an inserting mode; one side of the first wall body, which is far away from the second wall body, is connected with the elastic piece; the second wall body is used for controlled driving of the first wall body to move; the first wall body and the second wall body are connected quickly;

the operation part also comprises one or more limit holes; the bearing part also comprises balls; the ball can be correspondingly connected to the limit hole. The limiting hole is positioned on the end face of the limiting disc; or, the operation part further comprises a rotation positioning plate connected with the end face of the limiting disc, and the limiting hole is positioned on the rotation positioning plate. The arrangement of the limiting holes and the balls can cooperate with the first positioning piece and the second positioning piece to strengthen rotation limitation.

Drawings

FIG. 1 is a schematic perspective view of a dumbbell in accordance with a preferred embodiment of this utility model;

FIG. 2 is a schematic perspective view of a dumbbell in accordance with the preferred embodiment of this utility model;

FIG. 3 is an exploded isometric view of a dumbbell in accordance with the preferred embodiment of this utility model;

FIG. 4 is a perspective view of a limiting disc according to a preferred embodiment of the present utility model;

FIG. 5 is a perspective view of a rotation limiting pin according to a preferred embodiment of the present utility model;

FIG. 6 is a schematic cross-sectional view of a dumbbell in accordance with the preferred embodiment of this utility model;

FIG. 7 is a second schematic cross-sectional view of a dumbbell in accordance with the preferred embodiment of this utility model;

FIG. 8 is a third schematic cross-sectional view of a dumbbell in accordance with the preferred embodiment of this utility model;

FIG. 9 is an overall exploded perspective view of a dumbbell in accordance with the preferred embodiment of this utility model;

fig. 10 is an exploded perspective view of the end cap, the limiting plate and the rotational positioning plate in the preferred embodiment of the present utility model.

Detailed Description

The utility model is further described below with reference to the drawings and detailed description.

A dumbbell comprising an operation part 1, two bearing parts 2 and a plurality of dumbbell pieces 3; the operating part 1 comprises a handle 11, a shaft 12 and two sliders 13; the handle 11 and the two sliding parts 13 are respectively sleeved outside the shaft rod 12, the two sliding parts 13 are respectively arranged at two ends of the handle 11, the two ends of the handle 11 are respectively fixedly connected with a limiting disc 7, the sliding parts 13 penetrate through the limiting disc 7, the two ends of the shaft rod 12 are respectively fixedly connected with the bearing part 2, the outer wall of the sliding parts 13 comprises spiral grooves 131 extending spirally, the inner walls of the two ends of the handle 11 respectively comprise positioning columns 111, the positioning columns 111 can move in the spiral grooves 131, and when the handle 11 rotates around the axis of the shaft rod 12, the positioning columns 111 at the two ends of the handle 11 can drive the sliding parts 13 to synchronously approach and separate from each other on the shaft rod 12.

The carrying part 2 comprises a carrying frame 21, the carrying frame 21 comprises a first side 22, a second side 23 and a connecting part 24 connected between the first side 22 and the second side 23, the dumbbell piece 3 comprises a slot 31 extending up and down, the middle part of the slot 31 comprises a middle through hole 32, the connecting part 24 can be inserted into the slot 31 from top to bottom, the first side 22 is connected with the handle 11, the shaft rod 12 is fixedly connected with the second side 23 after extending through the connecting part 24, the sliding piece 13 slides on the shaft rod 12 to move on the connecting part 24, the radial dimension of the sliding piece 13 is larger than the radial dimension of the connecting part 24 to be correspondingly inserted into the middle through hole 32, the sliding pieces 13 are far away from each other to be correspondingly inserted into the middle through hole 32 of one or more dumbbell pieces 3, and at this time, the carrying part 2 can correspondingly carry one or more dumbbell pieces 3; the dumbbell further comprises a base 4, the base 4 is used for containing the dumbbell piece 3, the base 4 comprises two supporting grooves 41, the bearing parts 2 are respectively and correspondingly placed on the supporting grooves 41, the supporting grooves 41 further comprise a plurality of sub-grooves 42, the dumbbell piece 3 is sequentially placed on the sub-grooves 42, when the bearing parts 2 are placed on the supporting grooves 41 from top to bottom, the connecting parts 24 are respectively inserted into the slots 31, the handle 11 rotates to drive the sliding parts 13 to move on the shaft rods 12 to be inserted into the middle through holes 32, namely, the operating parts 1 are rotatably connected relative to the bearing parts 2, so that the bearing parts 2 can correspondingly bear one or more dumbbell pieces 3 in a controlled manner.

The outer peripheral wall of the distal end of the slider 13 further includes two guide blocks 132, the connecting portion 24 includes two guide grooves 241 extending along the axial direction of the shaft 12, the two guide blocks 132 are respectively slid in the guide grooves 241 to restrict the slider 13 from being moved only along the axial direction of the shaft 12 and prevent circumferential rotation of the slider 13; when the positioning cylinder 111 rotates along with the handle 11, the sliding member 13 can be pushed to move by the spiral groove 131, and the sliding member 13 can only move along the axial direction of the shaft 12 due to the guiding action between the guiding block 132 and the guiding groove 241, so as to achieve the mutual approaching and separating of the two sliding members 13.

The dumbbell further comprises a rotation limiting part for limiting the relative rotation of the operation part 1 and the bearing part 2, and the rotation limiting part is arranged above the first side part 22; the first side 22 includes a cavity 221, the operating portion 1 further includes end caps 16 fixed to both ends of the handle 11, a space is defined between the end caps 16 and the cavity 221, and the rotation limiting member is disposed in the space.

The rotation limiting component comprises a rotation limiting disc 7 fixedly connected with the operation part 1, and a first positioning piece 5 and a second positioning piece 6 connected with the bearing part 2; the outer side of the limit disc 7 comprises a plurality of limit grooves 71 arranged along the circumferential direction, the inner side of the limit disc 7 comprises a plurality of limit grooves 72 arranged along the circumferential direction, and the central angle between two adjacent limit grooves 71 is larger than the central angle between two adjacent limit grooves 72; in the present embodiment, the limit grooves 71 are uniformly spaced apart in the circumferential direction, and the rotation limit grooves 72 are uniformly spaced apart in the circumferential direction; the first positioning member 5 is configured to be positioned to one of the limit slots 71 to correspond to a corresponding number of dumbbell pieces 3, and the second positioning member 6 is configured to be positioned to at least one rotation limit slot 72 to limit the relative rotation of the rotation limit disc 7 and the carrier 2.

The first positioning element 5 is arranged above the side wall of the cavity 221, in this embodiment the first positioning element 5 comprising a resilient pin 51; when the limiting plate 7 rotates relative to the bearing part 2, the elastic pin 51 can be correspondingly embedded into one of the limiting grooves 71. In this embodiment, each of the limit slots 71 corresponds to one gear, that is, for example, a first limit slot 71 corresponds to the carrying portion 2 and carries one dumbbell piece 3, a second limit slot 71 corresponds to the carrying portion 2 and carries two dumbbell pieces 3, and so on, in this embodiment, the outer side of the limit disc 7 includes four limit slots 71 and is uniformly spaced.

The second positioning piece 6 comprises a rotation limiting pin body 61 and an elastic piece 62; the elastic member 62 is abutted between the rotation limiting pin body 61 and the bearing part 2, the rotation limiting pin body 61 can be controlled to move between a locking position and an unlocking position, when the rotation limiting pin body 61 is at least connected with two adjacent rotation limiting grooves 72 in the locking position, when the rotation limiting pin body 61 is disconnected with the rotation limiting grooves 72 in the unlocking position, and the elastic member 62 accumulates elastic force; in this embodiment, the central angle between adjacent two rotation limiting grooves 72 is 8 to 10 degrees, preferably 9 degrees. The first positioning piece 5 and the second positioning piece 6 cooperate to limit the rotation of the rotation limiting disc 7, the second positioning piece 6 can limit the rotation of the rotation limiting disc 7 when the first positioning piece 5 is not clamped to the limiting groove 71, a user is prevented from directly lifting the bearing part 2 from the base 4, and the rotation limiting disc 7 is not limited to rotate, so that the dumbbell piece 3 falls.

The second positioning member 6 is disposed at the bottom of the side wall of the cavity 221, and the rotation limiting pin 61 includes a first wall body 611, a second wall body 612, and a connecting wall 613 connected between the first wall body 611 and the second wall body 612; the side of the first wall body 611 facing the second wall body 612 comprises two rotation limiting teeth 614, and the rotation limiting teeth 614 are respectively connected with the rotation limiting grooves 72 in a plugging manner; one side of the first wall 611 away from the second wall 612 is connected to the elastic member 62; the second wall 612 is configured to controllably move the first wall 611. The groove of the seat body comprises a convex point part 43; when the bearing part 2 is placed on the base, the bump part 43 correspondingly abuts against the second wall 612 to move the rotation limiting pin 61 from the locking position to the unlocking position.

The operating part 1 further comprises one or more limiting holes 14; the carrier 2 further comprises balls 25; the balls 25 can be correspondingly connected to the limiting holes 14. The limiting hole 14 is positioned on the end face of the limiting disc 7; alternatively, the operation part 1 further includes a rotation positioning plate 15 connected to an end surface of the rotation limiting plate 7, and the limiting hole 14 is located on the rotation positioning plate 15. In this embodiment, the inner side of the end cover 16 further includes a positioning portion 161, the positioning portion 161 extends a distance along the axial direction of the end cover, the middle portion of the limiting disc 7 includes a first fitting hole 73, the first fitting hole 73 is connected with the outer periphery of the positioning portion 161 in a fitting manner, the outer periphery of the positioning portion 161 includes one or more notches 1611, and the first fitting hole 73 includes one or more first protrusions 731 that are engaged with the notches 1611; optionally, the middle portion of the rotating positioning plate 15 includes a second fitting hole 151, the second fitting hole 151 is connected with the outer periphery of the positioning portion 161 in a fitting manner, and the second fitting hole 151 includes one or more second protrusions 1511 that are engaged with the notch 1611. The positioning part 161 is connected with the limiting disc 7 and the rotation positioning plate 15 in a clamping manner.

The foregoing is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto, and any person skilled in the art will be able to make insubstantial modifications of the present utility model within the scope of the present utility model disclosed herein by this concept, which falls within the actions of invading the protection scope of the present utility model.

Claims (10)

1. A dumbbell, comprising: the dumbbell plate comprises a plurality of dumbbell plates, a bearing part and an operating part, wherein the operating part is rotatably connected relative to the bearing part so that the bearing part can correspondingly bear one or more dumbbell plates in a controlled manner;

the dumbbell also comprises a limiting disc connected with the operation part, and a first positioning piece and a second positioning piece connected with the bearing part;

the outer side of the limiting disc comprises a plurality of limiting grooves which are arranged along the circumferential direction, the inner side of the limiting disc comprises a plurality of limiting grooves which are arranged along the circumferential direction, and the central angle between two adjacent limiting grooves is larger than the central angle between two adjacent limiting grooves; the first locating piece is detachably connected with the limiting groove, and the second locating piece is detachably connected with the limiting groove.

2. The dumbbell of claim 1, wherein: the first positioning piece comprises an elastic pin; when the limiting disc rotates relative to the bearing part, the elastic pin can be correspondingly embedded into one of the limiting grooves.

3. A dumbbell as claimed in claim 1 or 2, wherein: the second positioning piece comprises a rotation limiting pin body and an elastic piece; the elastic piece is abutted between the rotation limiting pin body and the bearing part, the rotation limiting pin body can be controlled to move between a locking position and an unlocking position, when the rotation limiting pin body is located at the locking position, the rotation limiting pin body is at least connected with two adjacent rotation limiting grooves, when the rotation limiting pin body is located at the unlocking position, the rotation limiting pin body is disconnected with the rotation limiting grooves, and elastic force is accumulated by the elastic piece.

4. A dumbbell as claimed in claim 3, wherein: the central angle between two adjacent rotation limiting grooves is 8-10 degrees.

5. A dumbbell as claimed in claim 3, wherein: the rotation limiting pin body comprises a first wall body, a second wall body and a connecting wall connected between the first wall body and the second wall body; the side, facing the second wall body, of the first wall body comprises two rotation limiting teeth which are respectively connected with the rotation limiting grooves in an inserting mode; one side of the first wall body, which is far away from the second wall body, is connected with the elastic piece; the second wall body is used for controlled driving the first wall body to move.

6. The dumbbell of claim 5, wherein: the dumbbell also comprises a seat body; the base body comprises a salient point part; when the bearing part is placed on the base body, the bump part correspondingly abuts against the second wall body so that the rotation limiting pin body moves from the locking position to the unlocking position.

7. The dumbbell of claim 1, wherein: the operation part also comprises one or more limit holes; the bearing part also comprises balls; the ball can be correspondingly connected to the limit hole.

8. The dumbbell of claim 7, wherein: the limiting hole is positioned on the end face of the limiting disc; or, the operation part further comprises a rotation positioning plate connected with the end face of the limiting disc, and the limiting hole is positioned on the rotation positioning plate.

9. The dumbbell of claim 7, wherein: the dumbbell comprises a limit rotating disc, a limit hole, a limit rotating disc and a limit cover, wherein the limit rotating disc is arranged on the end face of the limit rotating disc;

or, the operation part further comprises a rotation positioning plate connected with the end face of the limit disc, the limit hole is positioned on the rotation positioning plate, the dumbbell further comprises an end cover, the end cover comprises a positioning part, and the limit disc and the rotation positioning plate are respectively clamped with the positioning part.

10. The dumbbell of claim 1, wherein: the dumbbell comprises two bearing parts; the two bearing parts are respectively connected with the two ends of the operation part; the operation portion comprises a handle, a shaft rod and two sliding parts, the bearing portion is respectively connected with a plurality of dumbbell plates in a hanging mode, the handle and the sliding parts are sleeved on the shaft rod, the two sliding parts are respectively located at two ends of the handle, the handle is fixedly connected with the limiting turntable, two ends of the shaft rod are fixedly connected with the bearing portion, and the handle rotates around the axis of the shaft rod to drive the two sliding parts to be close to or far away from each other so as to be correspondingly connected with the dumbbell plates.