CN110694222A - Dumbbell and dumbbell component - Google Patents

Abstract

The invention discloses a dumbbell and a dumbbell component, which solve the problem that the weight of the dumbbell is not changed when the dumbbell is adjusted at the present stage. The technical scheme is that the dumbbell comprises a handle and two dumbbell sheet groups which are respectively arranged at two ends of the handle, wherein each dumbbell sheet group comprises at least two dumbbell sheets, and a sliding structure for realizing axial positioning of the adjacent dumbbell sheets after radial sliding clamping is arranged between the adjacent dumbbell sheets; and a twist lock structure for controlling radial unlocking/locking of the adjacent dumbbell pieces is arranged between the adjacent dumbbell pieces, so that the dumbbell is convenient and fast in weight adjustment.

Description

Dumbbell and dumbbell component

Technical Field

The invention relates to the technical field of fitness equipment, in particular to a dumbbell and a dumbbell component.

Background

The dumbbell is a very common fitness equipment, and it mainly includes holding rod and dumbbell piece, and the dumbbell piece dress is at the both ends of holding rod, and traditional dumbbell divide into multiple model according to the weight difference, and its weight is not adjustable, and the user is along with the increase of exercise time, for satisfying the needs of strength increase, must purchase the dumbbell of many sets of different weight, and this has increased the cost undoubtedly.

Chinese design patent with granted publication No. CN305197043S discloses a dumbbell, which comprises a holding rod and a plurality of groups of dumbbell pieces, wherein the weight of the dumbbell is adjusted by adjusting the number of the dumbbell pieces and the casing, wherein the two ends of the holding rod are provided with threaded sections and the dumbbell pieces are tightly pressed at the two ends of the holding rod by screwing nuts. The dumbbell has a complicated weight adjusting mode.

Disclosure of Invention

The dumbbell provided by the invention has the advantages that the weight of the dumbbell can be conveniently adjusted.

The technical purpose of the invention is realized by the following technical scheme:

a dumbbell comprises a handle and two groups of dumbbell sheet groups which are respectively arranged at two ends of the handle, wherein each dumbbell sheet group comprises at least two dumbbell sheets, and a sliding structure for realizing axial positioning of the adjacent dumbbell sheets after radial sliding clamping is arranged between the adjacent dumbbell sheets; and a twist lock structure for controlling radial unlocking/locking of the adjacent dumbbell pieces is also arranged between the adjacent dumbbell pieces.

By adopting the technical scheme, when the dumbbell pieces need to be disassembled, the radial unlocking of the dumbbell pieces to be disassembled is firstly realized through the twist lock structure, then the dumbbell pieces to be disassembled are disassembled from the dumbbell along the sliding direction of the sliding structure, and the disassembly of the dumbbell pieces is completed. The dumbbell realizes quick assembly and disassembly of dumbbell pieces through the sliding structure and the rotary locking structure, so that the weight of the dumbbell is adjusted more conveniently.

As a further improvement of the invention, the sliding structure comprises at least two groups of sliding fixture blocks and sliding clamping grooves which are mutually in sliding clamping connection, each group of sliding fixture blocks and sliding clamping grooves are respectively arranged on two adjacent dumbbell pieces, and each dumbbell piece is provided with at least one sliding fixture block.

Through adopting above-mentioned technical scheme, the cooperation of the fixture block that slides and the draw-in groove that slides is comparatively common and comparatively convenient smooth dress structure, and it is spacing to realize the axial of adjacent dumbbell piece in the draw-in groove through sliding the fixture block that will slide into the draw-in groove that slides.

Because the sliding clamping blocks on one dumbbell piece are arranged and can only slide into the sliding clamping grooves on the other dumbbell piece along one direction, if the sliding clamping blocks are arranged on the same dumbbell piece, a sliding structure does not exist in an area where at least a semicircle exists between two adjacent dumbbell pieces, and the matching strength between the two adjacent dumbbell pieces is low. And each dumbbell piece in two adjacent dumbbell pieces is provided with a sliding clamping block, so that the problems can be overcome, and the matching strength of the sliding structure to the two adjacent dumbbell pieces is improved.

As a further improvement of the invention, the twist lock structure comprises a twist lock component arranged on one dumbbell piece of two adjacent dumbbell pieces and a twist lock groove arranged on the other dumbbell piece; the rotary lock component is provided with a rotary lock head matched with the rotary lock groove and a handle part for controlling the rotary lock head to rotate; the side wall of the corresponding dumbbell piece is provided with a twist lock notch; the rotary lock head is provided with a first state capable of being locked in the rotary lock groove and a second state capable of being locked in the rotary lock groove through the rotary lock opening, and the rotary lock head can be switched between the first state and the second state through shifting the handle portion.

By adopting the technical scheme, the first state of the rotary locking head corresponds to radial unlocking of two adjacent dumbbell pieces; the second state of the rotary lock head corresponds to radial locking of two adjacent dumbbell pieces, and switching between the first state and the second state of the rotary lock head can be realized by stirring the handle part, so that the switching mode is simple and convenient, and the weight adjustment of the dumbbell is further facilitated.

As a further improvement of the invention, the twist lock assembly comprises a twist lock disc for mounting the twist lock head, the dumbbell sheet provided with the twist lock assembly in the same twist lock structure is provided with an arc groove for rotatably mounting the twist lock disc on the side wall, and the handle part is arranged on the twist lock disc and is positioned outside the arc groove; the handle part can be abutted against the groove edges at the two ends of the arc groove in the rotating direction; when the handle part is abutted against the groove edge at one end of the arc groove, the twist lock head is in a first state; when the handle part is abutted against the groove edge at the other end of the arc groove, the rotary lock head is in a second state.

Through adopting above-mentioned technical scheme, the both ends butt in above-mentioned handle portion and circular arc groove corresponds the first state and the second state of rotary lock head respectively, and the rotation angle that can the person of facilitating the use adjust the rotary lock dish realizes the switching to the first state and the second state of rotating head, further helps the weight regulation of above-mentioned dumbbell.

As a further improvement of the dumbbell piece, the dumbbell pieces are formed by assembling and installing a plurality of weight pieces which are mutually stacked.

By adopting the technical scheme, the dumbbell piece has higher precision requirement on the weight of the dumbbell piece, and is formed by combining a plurality of weight pieces, so that the weight of the weight piece positioned in the middle of the dumbbell piece can be adjusted, and the adjustment mode can be that a hole groove is dug in the weight piece in the middle of the dumbbell piece, and the appearance of the whole dumbbell piece cannot be influenced.

As a further improvement of the invention, the dumbbell pieces sequentially comprise a first weight piece and a second weight piece along the direction far away from the matching surfaces of the two dumbbell pieces; the sliding clamping groove is formed by combining a first clamping groove formed in the first weight piece and a second clamping groove formed in the second weight piece, and the width of the first clamping groove is smaller than that of the second clamping groove.

Through adopting above-mentioned technical scheme, the draw-in groove that slides is formed by the first draw-in groove that is located first weight piece and the second draw-in groove combination that is located the second weight piece, and the injecing of above-mentioned structure has made things convenient for the processing of draw-in groove that slides on the dumbbell piece.

As a further improvement of the invention, the dumbbell piece provided with the spin lock assembly in the same spin lock structure is further provided with a third weight piece on the end face of the second weight piece far away from the first weight piece, the arc groove is arranged on the third weight piece, the first weight piece and the second weight piece of the dumbbell piece provided with the spin lock assembly are both provided with a first through hole for the spin lock head to extend out, and the spin lock groove is arranged on the first weight piece of the dumbbell piece which is not provided with the spin lock assembly in the same spin lock structure.

By adopting the technical scheme, the processing of the arc groove and the twist lock groove on the corresponding dumbbell sheet is facilitated.

A second object of the present invention is to provide a dumbbell assembly in which the weight of a dumbbell can be conveniently adjusted.

The technical purpose of the invention is realized by the following technical scheme:

a dumbbell subassembly comprises the dumbbell and a dumbbell support for placing the dumbbell.

As a further improvement of the dumbbell, two sides of the bottom of a dumbbell sheet of the dumbbell are respectively provided with a positioning clamping groove, and the dumbbell support is provided with a positioning clamping block clamped in the positioning clamping grooves; when the dumbbell is placed on the dumbbell support and the positioning clamping blocks are clamped into the corresponding positioning clamping grooves, the spiral locking disc is positioned at the top of the dumbbell sheet, and the sliding direction of the sliding structure is vertical.

By adopting the technical scheme, the weight adjusting steps of the dumbbell are as follows: firstly, placing dumbbells on corresponding dumbbell supports, and enabling the positioning clamping blocks on the dumbbell supports to be clamped in corresponding positioning clamping grooves respectively; 2. the number of the dumbbell pieces needed by the dumbbell is adjusted according to the requirements of a user, the twist lock structure of the needed dumbbell pieces is locked, and the twist lock structure of the dumbbell pieces which are not needed is unlocked; 3. and lifting the dumbbell, wherein the number of the dumbbell pieces on the dumbbell is the number required by a user, and the dumbbell pieces still left on the dumbbell support cannot topple due to the arrangement of the locking fixture blocks. The dumbbell has the advantages that the weight adjusting steps are convenient.

In conclusion, the invention has the following beneficial effects:

1. a dumbbell comprises a handle and a dumbbell sheet group, wherein adjacent dumbbell sheets in the dumbbell sheet group are detachably matched through a slide-mounting structure and a twist lock structure, and the dumbbell is convenient to adjust the weight;

2. the dumbbell piece is formed by assembling and installing a plurality of weight pieces which are mutually stacked, so that the weight of the dumbbell piece is favorably adjusted, and the processing and installation of a sliding structure and a rotary locking structure on the dumbbell piece are favorably realized;

3. the utility model provides a dumbbell subassembly, when the dumbbell place in when dumbbell support and fixture block card go into corresponding positioning channel section, the spiral lock dish is located the top of dumbbell piece, and the smooth dress direction of smooth dress structure is vertical direction, has not only made things convenient for the weight adjustment of dumbbell to after taking out the dumbbell, the dumbbell piece of staying on the dumbbell support can not take place to empty, makes things convenient for putting back and the regulation of follow-up dumbbell weight of dumbbell.

Drawings

FIG. 1 is a schematic view of the dumbbell of example 1;

FIG. 2 is a schematic view of the dumbbell of example 1 from a first perspective with the group of dumbbell pieces at one end of the handle in an exploded condition;

FIG. 3 is a schematic view of a second perspective of the dumbbell of example 1 with the group of dumbbell pieces at one end of the handle in an exploded condition;

FIG. 4 is a schematic view of the structure of the first dumbbell sheet mounted on the grip according to example 1;

FIG. 5 is an exploded view of the first dumbbell sheet of example 1;

FIG. 6 is a schematic bottom view of a first dumbbell sheet according to example 1;

FIG. 7 is a schematic view of the structure of a second dumbbell sheet in example 1;

FIG. 8 is a schematic view showing the engagement of the spin chuck and the spin lock head in an exploded state in example 1;

FIG. 9 is a schematic view showing the fitting of the rotary disk and the rotary lock head in embodiment 1;

FIG. 10 is a schematic cross-sectional view of the fitting of the twist-lock disk in the circular groove of the first dumbbell piece in example 1;

FIG. 11 is an exploded schematic view of weight plates A, B, C, D and E of the first dumbbell sheet of example 1;

FIG. 12 is an exploded schematic view of weight plates A, B, C, D and E of the second dumbbell sheet of example 1;

FIG. 13 is a schematic view of the dumbbell assembly of example 2;

FIG. 14 is a schematic view showing the bottom structure of the dumbbell of example 2;

fig. 15 is a schematic structural view of a dumbbell holder in example 2.

In the figure: 1. a dumbbell; 11. a grip; 12. a first dumbbell sheet; 121. a first counterbore; 122. a first bolt; 124. an arc groove; 1241. a first guiding cambered surface; 125. a guide through hole; 1251. a second guiding cambered surface; 13. a second dumbbell sheet; 14. a third dumbbell sheet; 15. a fourth dumbbell sheet; 16. positioning the clamping groove; 21. a sliding clamping block; 211. a butting post; 212. a clamping column; 213. a second counterbore; 214. a second bolt; 22. a sliding clamping groove; 221. a first card slot; 222. a second card slot; 31. a lock disc is rotated; 311. a rotating part; 3111. a first rotating arc surface; 3112. a square jack; 312. a handle portion; 32. a rotary lock head; 321. a clamping head; 322. a limiting clamping groove; 323. a second rotating arc surface; 33. a locking groove is screwed; 331. a locking groove; 332. sliding into the groove; 333. screwing the locking port; 41. a weight adjusting hole; 42. a rivet through hole; 43. riveting; 51. a first weight piece; 52. a second weight plate; 53. a third weight plate; 54. a first through hole; 6. a dumbbell support; 61. a left support; 62. a right support; 63. a stainless steel tube; 64. and positioning the fixture block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

referring to fig. 1, a dumbbell comprises a handle 11 and two dumbbell sheet sets respectively installed at two ends of the handle 11.

Referring to fig. 2 and 3, the dumbbell sheet set is formed by combining four dumbbell sheets, and includes a first dumbbell sheet 12, a second dumbbell sheet 13, a third dumbbell sheet 14 and a fourth dumbbell sheet 15 in sequence along a direction away from the grip 11. First dumbbell sheet 12, second dumbbell sheet 13, third dumbbell sheet 14, and fourth dumbbell sheet 15 all have a first end face that faces handle 11 and a second end face that faces away from handle 11.

Referring to fig. 4, first dumbbell sheet 12 has a first counterbore 121 at the center of second end 12a, and first dumbbell sheet 12 is fixed to the end of handle 11 by a first bolt 122 passing through first counterbore 121.

A sliding structure is arranged between two adjacent dumbbell pieces in the same dumbbell piece group, and axial positioning can be realized between the two adjacent dumbbell pieces through the sliding structure after radial sliding and clamping.

Referring to fig. 2 and 3, the sliding structure between the first dumbbell sheet 12 and the second dumbbell sheet 13 includes three sets of sliding blocks 21 and sliding slots 22, which are slidably engaged with each other.

Referring to fig. 2 and 5, the first dumbbell sheet 12 is provided with two slide locking blocks 21 and one slide locking groove 22 on the second end face 12a thereof.

The sliding fixture block 21 comprises a butting column 211 and a clamping column 212 which are sequentially arranged along the direction far away from the second end face 12a, the butting column 211 and the clamping column 212 are coaxially arranged and integrally manufactured, and the outer diameter of the butting column 211 is smaller than that of the clamping column 212. The sliding fixture block 21 is provided with a second counterbore 213 on the end surface far away from the second end surface, and is fixed on the second end surface of the first dumbbell sheet 12 through a second bolt 214. The sliding block 21 is made of elastic rubber material.

The two sliding blocks 21 of the first dumbbell sheet 12 on the second end face 12a are arranged on the upper region of the second end face 12a, the diameter of the second end face 12a in the vertical direction is symmetrical, and the circumferential angle between the two sliding blocks 21 is 60 degrees.

Referring to fig. 6, the sliding latch 22 includes a first latch 221 engaged with the abutment pillar 211 of the corresponding sliding latch 21 and a second latch 222 engaged with the latch pillar 212 of the corresponding sliding latch 21. The width of first card slot 221 is less than the width of second card slot 222.

The sliding clamping groove 22 of the first dumbbell sheet 12 on the second end face 12a is arranged at the bottom end of the second end face 12 a. The slip slot 22 forms a downward opening in the side wall of first dumbbell sheet 12.

Referring to fig. 7, the second dumbbell plate 13 is provided with two slide locking grooves 22 and a slide locking block 21 on the first end surface 13a thereof.

Referring to fig. 5 and 7, two sliding locking grooves 22 on the first end surface 13a of the second dumbbell sheet 13 are matched with two sliding locking blocks 21 on the second end surface 12a of the first dumbbell sheet 12 in a one-to-one correspondence manner. Two slide slots 22 form upward openings in the side walls of the second dumbbell sheet 13. One sliding clamping block 21 of the second dumbbell plate 13 on the first end face 13a is correspondingly matched with one sliding clamping groove 22 of the second end face 12a of the first dumbbell plate 12.

Through the sliding structure of the first dumbbell sheet 12 and the second dumbbell sheet 13, the first dumbbell sheet 12 can slide radially relative to the second dumbbell sheet 13, and the three sliding fixture blocks 21 slide into the corresponding sliding fixture grooves 22, so that the axial positioning and the circumferential positioning between the first dumbbell sheet 12 and the second dumbbell sheet 13 are realized, namely, the first dumbbell sheet 12 cannot axially displace and circumferentially rotate relative to the second dumbbell sheet 13.

Referring to fig. 2 and 3, the slide-on structure between the second dumbbell sheet 13 and the third dumbbell sheet 14, and the slide-on structure between the third dumbbell sheet 14 and the fourth dumbbell sheet 15 are all consistent with the slide-on structure between the first dumbbell sheet 12 and the second dumbbell sheet 13, so that the third dumbbell sheet 14 and the fourth dumbbell sheet 15 can be combined with the first dumbbell sheet 12 through the slide-on structure.

A twist lock structure is further arranged between adjacent dumbbell pieces in the same dumbbell piece group, and radial unlocking/locking between the two adjacent dumbbell pieces can be controlled through the twist lock structure.

Referring to fig. 5 and 7, the twist lock arrangement between first dumbbell sheet 12 and second dumbbell sheet 13 includes a twist lock assembly disposed on first dumbbell sheet 12 and a twist lock slot 33 disposed on second dumbbell sheet 13.

Referring to fig. 5, 8 and 9, the twist lock assembly includes a twist lock disc 31 and a twist lock head 32.

The spin lock disk 31 includes a rotation portion 311 and a handle portion 312 which are integrally formed. The rotating portion 311 is formed in a substantially circular shape as a whole and has a first rotating arc surface 3111 having a cylindrical arc surface. A rectangular insertion hole 3112 is provided at the center of the rotating portion 311.

The rotary lock head 32 has a locking head 321 inserted into the square insertion hole 3112 and a limit locking groove 322 matched with the square insertion hole 3112. The cross section of the screw locking head 32 at the position of the limiting clamping groove 322 is also rectangular matched with the direction insertion hole. After the bayonet joint 321 passes through the square insertion hole 3112 of the rotating portion 311, the rotating portion 311 is clamped into the limiting bayonet slot 322 at the edge of the direction insertion hole, so that the locking head 32 and the locking disk 31 rotate synchronously. The side of the rotary lock head 32 is symmetrically provided with a second rotary arc 323.

Referring to fig. 5 and 10, an arc groove 124 for rotatably mounting the rotational locking disk 31 is formed on a top side wall of the first dumbbell sheet 12, and a bottom surface of the arc groove 124 is a first guide arc 1241 rotatably engaged with the first rotary arc 3111 of the rotary portion 311. First dumbbell sheet 12 also has at its second end face 12a guide through-hole 125 that communicates with arc groove 124 and cooperates with twist lock head 32, and the inner wall of guide through-hole 125 is second guide cambered surface 1251 that cooperates with second rotatory cambered surface 323. When the twist-lock assembly is mounted to first dumbbell sheet 12, handle portion 312 of twist-lock disk 31 extends out of the notch of circular groove 124, and twist-lock head 32 extends out of guide through-hole 125 from second end 12a of first dumbbell sheet 12.

Referring to fig. 5 and 7, the second dumbbell plate 13 is formed with a twist locking groove 33 at a top area of the first end surface 13a thereof to be engaged with the twist locking head 32. The rotation groove includes a locking groove 331 and a slide-in groove 332. The locking groove 331 is a circular groove, and the inner diameter of the locking groove 331 is equal to the outer diameter of the second rotating arc surface 323. The slide groove 332 is formed with a twist lock opening 333 into which the twist lock head 32 is inserted at the top of the second dumbbell sheet 13.

In summary, the twist-lock head 32 has a first state capable of passing through the twist-lock opening 333 and a second state incapable of passing through the twist-lock opening 333, and the twist-lock head 32 can switch the first state and the second state by toggling the exposed handle portion 312. When the handle 312 abuts against the groove edge at one end of the arc groove 124, the spin lock head 32 is in the first state, and the spin lock head is in the vertical state; when the handle 312 abuts the other end of the arcuate groove 124, the twist lock head 32 is in the second position, and the spin head is in a horizontal position.

Through the twist lock structure, the first dumbbell piece 12 can slide radially relative to the second dumbbell piece 13, so that the twist lock head 32 slides into the locking groove 331 of the twist lock groove 33 through the twist lock opening 333, the handle part 312 of the twist lock disc 31 is pulled, the twist lock head 32 is switched from the first state to the second state, the radial locking of the first dumbbell piece 12 and the second dumbbell piece 13 is realized, and when the first dumbbell piece 12 is lifted at the moment, the second dumbbell piece 13 cannot fall off from the first dumbbell piece 12.

The twist lock structure between the second dumbbell piece 13 and the third dumbbell piece 14 and the twist lock structure between the third dumbbell piece 14 and the fourth dumbbell piece 15 are all kept consistent with the twist lock structure between the first dumbbell piece 12 and the second dumbbell piece 13, so that the third dumbbell piece 14 and the fourth dumbbell piece 15 can be combined with the first dumbbell piece 12 through the twist lock structure.

Referring to fig. 2 and 11, each of the first dumbbell sheet 12, the second dumbbell sheet 13, the third dumbbell sheet 14, and the fourth dumbbell sheet 15 is assembled by five weight plates stacked on each other. Five weight plates in the same dumbbell plate are respectively a weight plate A, a weight plate B, a weight plate C, a weight plate D and a weight plate E along the direction far away from the grip 11, and the five weight plates are riveted and fixed through rivets 43. In the present embodiment, four rivet through holes 42 for installing rivets 43 are correspondingly formed in each of the five weight plates.

Wherein, weight piece B, weight piece C and weight piece D all can set up weight regulation hole 41 for adjust the weight and the balance performance of dumbbell piece.

Referring to fig. 11 and 12, the dumbbell sheet includes first weight plate 51 and second weight plate 52 in that order in a direction away from the mating surfaces of the two dumbbell sheets. The first locking groove 221 of the sliding locking groove 22 is disposed on the first weight plate 51, and the second locking groove 222 is disposed on the second weight plate 52.

The dumbbell piece with the twist lock assembly in the same twist lock structure is provided with a third weight piece 53 on the end face, far away from the first weight piece 51, of the second weight piece 52, the arc groove 124 is formed in the third weight piece 53, the first weight piece 51 and the second weight piece 52 of the dumbbell piece with the twist lock assembly in the same twist lock structure are both provided with first through holes 54 for the twist lock head 32 to extend out, and the two first through holes 54 are combined to form a guide through hole 125. The twist lock groove 33 is provided on the first weight plate 51 of the dumbbell sheet not provided with a twist lock assembly in the same twist lock configuration.

Referring to fig. 11 and 12, weight plates C, D, E of first dumbbell sheet 12 are third weight plate 53, second weight plate 52, and first weight plate 51, respectively, of the cooperating structure of first dumbbell sheet 12 and second dumbbell sheet 13. Wherein, the weight plate C of the first dumbbell sheet 12 is provided with an arc groove 124 of a twist locking structure between the first dumbbell sheet 12 and the second dumbbell sheet 13; the weight plate D of the first dumbbell sheet 12 is provided with a second clamping groove 222 of a sliding structure between the first dumbbell sheet 12 and the second dumbbell sheet 13; the weight piece E of the first dumbbell piece is provided with a first clamping groove 221 of a sliding structure between the first dumbbell piece 12 and the second dumbbell piece 13.

Weight plates A and B of second dumbbell sheet 13 are first weight plate 51 and second weight plate 52, respectively, of the mating configuration of first dumbbell sheet 12 and second dumbbell sheet 13. Wherein, the weight plate a of the second dumbbell piece 13 is provided with a first clamping groove 221 of a sliding structure between the first dumbbell piece 12 and the second dumbbell piece 13 and a locking groove 33 of a screwing structure between the first dumbbell piece 12 and the second dumbbell piece 13.

Weight plates C, D, and E of second dumbbell sheet 13 are third weight plates 53, second weight plates 52, and first weight plates 51, respectively, of the cooperative construction of second dumbbell sheet 13 and third dumbbell sheet 14.

Weight plates A and B of the third dumbbell sheet 14 are the first weight plate 51 and the second weight plate 52, respectively, of the cooperating structure of the second dumbbell sheet 13 and the third dumbbell sheet 14. Weight plates C, D, and E of the third dumbbell sheet 14 are the third weight plate 53, the second weight plate 52, and the first weight plate 51, respectively, of the cooperating structure of the third dumbbell sheet 14 and the fourth dumbbell sheet 15.

Weight plates A and B of fourth weight plate 15 are first weight plate 51 and second weight plate 52, respectively, of the mating configuration of third dumbbell plate 14 and fourth dumbbell plate 15.

Example 2:

referring to fig. 13, a dumbbell assembly includes dumbbell 1 of example 1 and dumbbell holder 6 on which dumbbell 1 is placed.

Referring to fig. 14, two sides of the bottom of four dumbbell pieces in dumbbell 1 are provided with positioning slots 16. And with reference to fig. 11, the positioning slots 16 are formed in the weight plate B, and the circumferential distance between two positioning slots 16 of the same dumbbell piece is 60 °.

Referring to fig. 15, the dumbbell holder 6 includes a left holder 61, a right holder 62, and two stainless steel pipes 63 connecting between the left holder 61 and the right holder 62. Left and right holders 61 and 62 are made of plastic and are used to support the dumbbell sheet set. The left support 61 and the right support 62 are provided with positioning blocks 64 which are correspondingly matched with the positioning slots 16 (refer to fig. 14).

When the dumbbell 1 is placed on the dumbbell support 6 and the positioning clamping blocks 64 are clamped into the corresponding positioning clamping grooves 16, the rotary locking disc 31 is positioned at the top of the dumbbell sheet, the sliding direction of the sliding connection structure is the vertical direction, and the direction in which the rotary locking head 32 slides into the rotary locking groove 33 is also the vertical direction.

The weight adjusting steps of the dumbbell in the dumbbell component are as follows:

1. placing the dumbbell 1 on the corresponding dumbbell support 6, so that the positioning fixture blocks 64 on the dumbbell support 6 are respectively clamped into the corresponding positioning fixture grooves 16;

2. the number of the dumbbell pieces needed by the dumbbell 1 is adjusted according to the requirements of users, the twist lock structure of the needed dumbbell pieces is locked, and the twist lock structure of the dumbbell pieces which are not needed is unlocked;

3. the dumbbell 1 is lifted, the number of the dumbbell pieces on the dumbbell 1 is the number required by a user, and due to the arrangement of the positioning fixture blocks 64, the dumbbell pieces still left on the dumbbell support 6 cannot topple.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims (9)

1. A dumbbell comprises a handle (11) and two groups of dumbbell sheet groups which are respectively arranged at two ends of the handle (11), wherein each dumbbell sheet group comprises at least two dumbbell sheets, and is characterized in that a sliding structure for realizing axial positioning of the adjacent dumbbell sheets after radial sliding clamping is arranged between the adjacent dumbbell sheets; and a twist lock structure for controlling radial unlocking/locking of the adjacent dumbbell pieces is also arranged between the adjacent dumbbell pieces.

2. The dumbbell of claim 1, wherein the sliding structure comprises at least two sets of sliding fixture blocks (21) and sliding fixture grooves (22) which are slidably clamped with each other, each set of sliding fixture blocks (21) and sliding fixture grooves (22) is respectively arranged on two adjacent dumbbell sheets, and each dumbbell sheet is provided with at least one sliding fixture block (21).

3. A dumbbell according to claim 2, wherein the twist lock structure comprises a twist lock assembly provided on one dumbbell sheet of two adjacent dumbbell sheets and a twist lock slot (33) provided on the other dumbbell sheet; the rotary lock assembly is provided with a rotary lock head (32) matched with the rotary lock groove (33) and a handle part (312) for controlling the rotary lock head (32) to rotate; the side wall of the corresponding dumbbell sheet of the twist lock groove (33) is provided with a twist lock port (333); the rotary lock head (32) has a first state capable of being locked in the rotary lock groove (33) through a rotary lock opening (333) and a second state, and the rotary lock head (32) can realize switching between the first state and the second state by stirring the handle part (312).

4. A dumbbell according to claim 3, characterized in that the twist-lock assembly comprises a twist-lock disk (31) for mounting the twist-lock head (32), the dumbbell sheet provided with the twist-lock assembly in the same twist-lock structure is provided with an arc groove (124) on the side wall for rotatably mounting the twist-lock disk (31), and the handle part (312) is provided on the twist-lock disk (31) and outside the arc groove (124); the handle part (312) can be abutted against the groove edges at the two ends of the arc groove (124) in the rotating direction; when the handle part (312) is abutted against the groove edge at one end of the arc groove (124), the rotary lock head (32) is in a first state; when the handle part (312) is abutted against the groove edge at the other end of the arc groove (124), the rotary lock head (32) is in a second state.

5. A dumbbell according to claim 4, wherein the dumbbell pieces are each assembled from a plurality of weight plates stacked one on top of the other.

6. A dumbbell according to claim 5, characterised in that the dumbbell pieces comprise, in order in a direction away from the mating faces of the two dumbbell pieces, a first weight plate (51) and a second weight plate (52); the sliding clamping groove (22) is formed by combining a first clamping groove (221) arranged on the first weight piece (51) and a second clamping groove (222) arranged on the second weight piece (52), and the width of the first clamping groove (221) is smaller than that of the second clamping groove (222).

7. A dumbbell according to claim 6, characterized in that the dumbbell sheet provided with the twist-lock assembly in the same twist-lock structure is further provided with a third weight plate (53) on the end face of the second weight plate (52) far away from the first weight plate (51), the circular arc groove (124) is provided on the third weight plate (53), the first weight plate (51) and the second weight plate (52) of the dumbbell sheet provided with the twist-lock assembly in the same twist-lock structure are both provided with a first through hole (54) for the twist-lock head (32) to extend out, and the twist-lock groove (33) is provided on the first weight plate (51) of the dumbbell sheet not provided with the twist-lock assembly in the same twist-lock structure.

8. A dumbbell assembly, characterized by comprising a dumbbell according to claim 7 and a dumbbell holder (6) on which the dumbbell can be placed.

9. The dumbbell assembly according to claim 8, characterized in that the dumbbell sheets of the dumbbell are respectively provided with a positioning slot (16) on both sides of the bottom, and the dumbbell support (6) is provided with a positioning block (64) clamped in the positioning slot (16); when the dumbbell is placed on the dumbbell support (6) and the positioning clamping block (64) is clamped into the corresponding positioning clamping groove (16), the rotary locking disc (31) is positioned at the top of the dumbbell sheet, and the sliding direction of the sliding structure is vertical.

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