TWM627768U - Dumbbell with adjustable weight - Google Patents

Abstract

This creation is a weight-adjustable dumbbell, including a handle, a clamping shaft and multiple weight plates. The handle has an abutment plate portion. The clamping shaft has a joint part and a fixing part. One end of the joint part is screwed with the handle. The weight pieces can be detachably arranged on the clamping shaft and are arranged along the axial direction of the handle. A weight piece is sandwiched between the abutting plate part of the handle and the fixing part of the clamping shaft. Each weight piece has a notch. The notch is recessed from the outer ring surface of the weight piece to the center of the weight piece, each weight piece is positioned on the joint part of the chuck shaft with the notch slot, and each weight piece can move radially relative to the joint part, and the joint part is moved from the joint part by the notch slot. to be separated from the card shaft. In this way, the user only needs to unscrew the clamping shaft to be able to pull out or position the weight pieces along the radial direction, and then tighten the clamping shaft again to fix all the weight pieces without disengagement.

Description

adjustable weight dumbbells

The invention relates to a kind of fitness equipment, especially a dumbbell whose weight can be adjusted and the weight plate can be easily replaced.

With the improvement of life quality and sports awareness, fitness has gradually become one of the daily activities of modern people, and dumbbells are one of the commonly used fitness equipment. Traditional dumbbells are divided into many different weights to facilitate the adjustment of the weight-bearing degree during training. However, the purchase of multiple dumbbells not only requires a high cost, but also takes up more space for storage, which is less suitable for ordinary people to use at home. Therefore, the market developed a dumbbell that can adjust the weight.

In the prior art, the weight-adjustable dumbbell has a handle and a plurality of weight pieces, the weight pieces are axially inserted into the stack from both ends of the handle, and then fixed by a fastener to limit the axial movement and separation of the weight piece; The fasteners are completely removed and then moved axially one by one to separate the weight pieces from the handle end. Such a structure makes the operation steps for adjusting the weight numerous, which is quite troublesome and difficult to use.

In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a dumbbell with adjustable weight, which can pull out or insert the weight plate along the radial direction only by slightly loosening the clamping shaft, thereby greatly simplifying the adjustment of the weight. Operation steps, easy to use.

In order to achieve the above-mentioned creative purpose, the technical means used in this creation is to design a dumbbell with adjustable weight, which includes: a handle, which has an abutting plate part and a rod body part; the abutting plate part is located at one end of the rod body part; a clamping shaft, which has a joint part and a fixed part; one end of the joint part is screwed with the rod body part of the handle; the fixed part is located at the other end of the joint part; A plurality of weight pieces, which can be detachably provided on the clamping shaft and are arranged along the axial direction of the rod body portion of the handle; the abutting plate portion of the handle and the fixing portion of the clamping shaft sandwich the Weight pieces; each of the weight pieces has a notch, a limit protrusion and a limit groove; the notch is recessed from the outer ring surface of the weight piece to the center of the weight piece, and each weight piece is defined by the notch The slot is positioned on the joint part of the clamping shaft, and each of the weight pieces can move radially relative to the joint part and make the joint part disengage from the notch so as to be separated from the clamping shaft; the limiting convex part and the limiting grooves are respectively formed on both sides of the weight piece, in any two adjacent weight pieces, the limiting convex portion of one of the weight pieces is engaged with the limiting concave portion of the other weight piece The fixed part of the clamping shaft can be engaged with the limiting convex part or the limiting groove of the weight piece closest to the fixed part, thereby restricting the radial movement of the weight pieces to make the weight pieces The weight piece is fixed with the card shaft.

The advantage of the present invention is that because the weight piece has a notch recessed from the outer ring surface of the weight piece to the center of the weight piece, the weight piece can be positioned on the joint portion of the clamping shaft with the notch, and can be relative to the joint portion. The radial movement makes the joint part disengage from the notch so as to separate from the clamping shaft. In addition, the weight pieces are sandwiched between the abutting plate portion of the handle and the fixing portion of the clamping shaft, the limiting convex portions of any two adjacent weight pieces are engaged with the limiting groove, and the fixing portion of the clamping shaft can be By engaging with the limiting protrusions or limiting grooves of the weight pieces closest to the fixing portion, the clamping shaft can selectively engage and fix the weight pieces on the handle by the fixing portion. In this way, the user only needs to loosen the clamping shaft a little to pull out or position the weight pieces in the radial direction, and tighten the clamping shaft again to fix all the weight pieces, which greatly simplifies the adjustment of the weight. Operation steps, easy to use.

Further, in the weight-adjustable dumbbell, wherein the limiting convex portion of each weight piece is a circular ring wall surrounding the center of the weight piece; the fixing portion of the clamping shaft is a circular ring The wall is sleeved on the outer side of the limiting convex portion of each of the weight pieces.

Further, in the weight-adjustable dumbbell, each of the weight pieces has at least one tenon and at least one slot, and in any two adjacent weight pieces, the at least one card of one of the weight pieces The tenon is engaged in the at least one locking groove of the other weight piece.

Further, in the weight-adjustable dumbbell, the abutting plate portion of the handle has at least one anti-rotation convex portion, and the at least one anti-rotation convex portion is engaged with the fixing portion farthest from the clamping shaft in the at least one card slot of the weight sheet.

Further, in the weight-adjustable dumbbell, the abutting plate portion of the handle and the rod body are two independent elements that are combined by welding.

The technical means adopted by the present creation to achieve the predetermined creation purpose are further described below in conjunction with the drawings and preferred embodiments of the present creation.

Please refer to FIG. 1 and FIG. 2 , the weight-adjustable dumbbell of the present invention includes a handle 10 , a clamping shaft 20 and a plurality of weight pieces 30 .

Please refer to FIG. 2 , FIG. 3 and FIG. 4 , the handle 10 has an abutting plate portion 11 and a rod body portion 12 . The abutting plate portion 11 is located at one end of the rod body portion 12 . Specifically, in this embodiment, the abutting plate portion 11 and the rod body portion 12 are two independent elements that are combined by welding, but in other embodiments, they may only be engaged with each other, or may be integrally formed.

The clamping shaft 20 has a joint portion 21 and a fixing portion 22 . One end of the joint portion 21 is screwed with the rod body portion 12 of the handle 10 . The fixing portion 22 is located at the other end of the coupling portion 21 .

Please refer to FIG. 2 , FIG. 4 , FIG. 6 and FIG. 7 , the weight pieces 30 are detachably disposed on the clamping shaft 20 and arranged along the axial direction of the rod body 12 of the handle 10 . The weight pieces 30 are sandwiched between the abutting plate portion 11 of the handle 10 and the fixing portion 22 of the clamping shaft 20 . Each weight piece 30 has a notched groove 31 , a limiting protrusion 32 and a limiting groove 33 . The groove 31 is recessed from the outer ring surface of the weight piece 30 to the center of the weight piece 30 . Each weight piece 30 is positioned on the joint portion 21 of the chuck shaft 20 with a groove 31 , and each weight piece 30 can move radially relative to the joint portion 21 and make the joint portion 21 disengage from the slot 31 , thereby connecting with the chuck shaft 20 . separation. The limiting protrusions 32 and the limiting grooves 33 are respectively formed on two sides of the weight piece 30 . In any two adjacent weight pieces 30 , the limiting protrusion 32 of one weight piece 30 is engaged with the other weight piece 30 . inside the limiting groove 33 , thereby mutually restricting the radial movement relative to the clamping shaft 20 . The fixing portion 22 of the clamping shaft 20 can be engaged with the limiting convex portion 32 or the limiting groove 33 of the weight piece 30 closest to the fixing portion 22 (ie, the outermost weight piece 30 ), so as to limit these weight pieces 30 Move radially so that the weight pieces 30 and the clamping shaft 20 are fixed and not disengaged.

Specifically, in this embodiment, the weight piece 30 is directed toward the fixing portion 22 with the limiting convex portion 32 , so the fixing portion 22 is engaged with the limiting convex portion 32 , but in other embodiments, the weight piece 30 may also be a weight piece 30 , the limiting groove 33 faces the fixing portion 22 , that is to say, the whole group of weight sheets 30 is installed in reverse, so that the fixing portion 22 is engaged with the limiting groove 33 . Further, in this embodiment, the limiting protrusion 32 of each weight piece 30 is a circular ring wall surrounding the center of the weight piece 30 , and the groove 31 forms an opening on the ring wall. The fixing portion 22 of the clamping shaft 20 is a circular ring wall sleeved on the outer side of the limiting convex portion 32 of each weight piece 30 . However, in other embodiments, the specific structures of the limiting convex portion 32 and the fixing portion 22 are not limited thereto.

In addition, in this embodiment, each weight piece 30 has at least one tenon 34 and at least one slot 35 , and the abutting plate portion 11 of the handle 10 has at least one anti-rotation convex portion 111 . In any two adjacent weight pieces 30 , the tenon 34 of one weight piece 30 is engaged in the locking groove 35 of the other weight piece 30 . The anti-rotation convex portion 111 is engaged in the locking groove 35 of the weight piece 30 (ie, the innermost weight piece 30 ) that is farthest from the fixing portion 22 of the clamping shaft 20 . The above structure can prevent the weight pieces 30 from rotating relative to the handle 10 and the clamping shaft 20 , but in other embodiments, other structures, such as rubber anti-slip sheets, can also be used to achieve this purpose.

Please refer to FIG. 4 and FIG. 5 , when in use, if the user wants to reduce the weight, the user first loosens the clamping shaft 20 slightly relative to the handle 10 , so that the fixing portion 22 is separated from the limiting convex portion 32 of the outermost weight piece 30 . Then, axially moving the weight piece 30 a short distance can pull the weight piece 30 radially away. If the user wants to increase the weight, the user also loosens the clamping shaft 20 slightly relative to the handle 10 to a distance greater than the thickness of the weight piece 30 , and then inserts the weight piece 30 and hangs it on the joint portion 21 of the clamping shaft 20 with the slot 31 Finally, tighten the clamping shaft 20 so that the fixed part 22 and the abutting plate part 11 of the handle 10 sandwich the momentum piece, and make the fixed part 22 engage with the limiting convex part 32 of the outermost weight piece 30 to complete the operation. assembled.

The advantage of the present invention is that, because the weight piece 30 has a groove 31 recessed from the outer ring surface of the weight piece 30 to the center of the weight piece 30 , the weight piece 30 can be positioned at the joint portion 21 of the clamping shaft 20 by the groove 31 and can move radially relative to the coupling part 21 and make the coupling part 21 disengage from the groove 31 so as to be separated from the clamping shaft 20 . In addition, the weight pieces 30 are sandwiched between the abutting plate portion 11 of the handle 10 and the fixing portion 22 of the clamping shaft 20 , and the limiting protrusions 32 and the limiting grooves 33 of any two adjacent weight pieces 30 are engaged with each other. The fixing part 22 of the clamping shaft 20 can be engaged with the limiting convex part 32 or the limiting groove 33 of the weight plate 30 closest to the fixing part 22, and the clamping shaft 20 can selectively use the fixing part 22 The equal-weight sheet 30 is snapped and fixed on the handle 10 . In this way, the user only needs to unscrew the clamping shaft 20 a little to be able to pull out or position the weight pieces 30 in the radial direction, and then tighten the clamping shaft 20 again to fix all the weight pieces 30 without disengagement. Simplify the operation steps of adjusting the weight, and it is convenient to use.

The above is only a preferred embodiment of the creation, and does not limit the creation in any form. Although the creation has been disclosed as a preferred embodiment, it is not intended to limit the creation. Those of ordinary knowledge, within the scope of the technical solution of the creation, can make some changes or modifications to equivalent embodiments with equivalent changes by using the technical content disclosed above, provided that the content that does not depart from the technical solution of the creation is based on the technical content of the invention. The technical essence of the creation Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the creation.

10: Handle 11: Abutting the plate 111: Anti-rotation convex part 12: Rod body 20: Card shaft 21: Joint 22: Fixed part 30: Weight Sheet 31: missing slot 32: Limiting convex part 33: Limit groove 34: Tenon 35: Card slot

Figure 1 is a three-dimensional appearance view of this creation. Figure 2 is an exploded view of the components of this creation. Figure 3 is a front view of this creation. FIG. 4 is a side cross-sectional view taken along the line A-A of FIG. 3 . Figure 5 is a schematic diagram of the disassembly and replacement of this creation. FIG. 6 is a three-dimensional external view of the weight piece of the present invention. FIG. 7 is a three-dimensional appearance view of the weight piece of the present invention from another angle.

10: Handle

11: Abutting the plate

111: Anti-rotation convex part

12: Rod body

20: Card shaft

21: Joint

22: Fixed part

30: Weight Sheet

31: missing slot

32: Limiting convex part

34: Tenon

Claims (5)

An adjustable weight dumbbell containing a handle, which has an abutting plate part and a rod body part; the abutting plate part is located at one end of the rod body part; a clamping shaft, which has a joint part and a fixed part; one end of the joint part is screwed with the rod body part of the handle; the fixed part is located at the other end of the joint part; A plurality of weight pieces, which can be detachably provided on the clamping shaft and are arranged along the axial direction of the rod body portion of the handle; the abutting plate portion of the handle and the fixing portion of the clamping shaft sandwich the Weight pieces; each of the weight pieces has a notch, a limit protrusion and a limit groove; the notch is recessed from the outer ring surface of the weight piece to the center of the weight piece, and each weight piece is defined by the notch The slot is positioned on the joint part of the clamping shaft, and each of the weight pieces can move radially relative to the joint part and make the joint part disengage from the notch so as to be separated from the clip shaft; the limiting convex part and the limiting grooves are respectively formed on both sides of the weight piece, in any two adjacent weight pieces, the limiting convex portion of one of the weight pieces is engaged with the limiting concave portion of the other weight piece in the groove; the fixing portion of the clamping shaft can be engaged with the limiting convex portion or the limiting groove of the weight piece closest to the fixing portion, thereby restricting the radial movement of the weight pieces so that the The weight piece is fixed with the card shaft. The adjustable weight dumbbell of claim 1, wherein, The limiting protrusion of each weight piece is a circular ring wall surrounding the center of the weight piece; The fixing portion of the clamping shaft is a circular ring wall sleeved on the outer side of the limiting convex portion of each of the weight pieces. The weight-adjustable dumbbell according to claim 2, wherein each of the weight pieces has at least one tenon and at least one slot, and in any two adjacent weight pieces, the at least one card of one of the weight pieces The tenon is engaged in the at least one locking groove of the other weight piece. The weight-adjustable dumbbell according to claim 3, wherein the abutting plate portion of the handle has at least one anti-rotation convex portion, and the at least one anti-rotation convex portion is engaged with the fixing portion farthest from the clamping shaft in the at least one card slot of the weight sheet. The weight-adjustable dumbbell according to any one of claims 1 to 4, wherein the abutting plate part of the handle and the rod body part are two independent elements that are combined by welding.

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