Weight-adjustable dumbbell

Abstract

The utility model discloses a weight-adjustable dumbbell. The weight-adjustable dumbbell comprises a handle, a plurality of dumbbell pieces and a pair of adjusting assemblies, two ends of the handle are respectively provided with a fixed disc; the dumbbell pieces are sequentially arranged along the fixing disc and movably connected with one another. A second sliding groove corresponding to the first sliding groove is formed in the fixed disc; a pair of first sliding grooves are formed in the dumbbell pieces and penetrate through the dumbbell pieces. The two ends of the pair of adjusting assemblies are connected with the fixing disc correspondingly and correspond to the pair of first sliding grooves correspondingly. The adjusting assembly comprises a hanging rod, a shell and a driving mechanism, and the hanging rod is movably arranged in the shell and can slide in the shell; the driving mechanism can drive the hanging rods to enter the corresponding first sliding grooves. The weight of the dumbbell can be quickly selected, and the structure is stable; and the requirement for production precision is low, manufacturing is easy, and the production cost is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to dumbbell technical field, especially a weight adjustable dumbbell. BACKGROUND

[0002] Dumbbell is widely used as a kind of fitness equipment, can satisfy the favour of fitness enthusiasts etc. Because adjustable dumbbell is widely used, users often need many different weight dumbbell pieces, and adjustable dumbbell frequently adjusts different weights to meet the training requirements in the use process of users.

[0003] The patent document with the announcement number CN218187698U discloses a weight adjustable dumbbell, comprising a plurality of dumbbell pieces, a dumbbell rod assembly for hanging the dumbbell pieces and a bottom support for storing the dumbbell pieces, the dumbbell rod assembly comprises a transmission shaft, a plurality of cam structures are fixedly connected to the transmission shaft, the cam structure comprises a cam piece, the cam piece comprises a load-bearing layer for hanging the dumbbell pieces, the outer layer on both sides of the load-bearing layer is respectively provided with an anti-wear layer, and the outer surface of the anti-wear layer on one side is provided with a plurality of convex points. The anti-wear layers are arranged on both sides of the cam piece of the cam structure, and the outer surface of the anti-wear layer on one side is provided with convex points, the hardness of the anti-wear layer is lower than that of the dumbbell piece, which can effectively reduce the wear of the cam piece on the dumbbell piece, prolong the service life of the dumbbell piece and improve the stability of the dumbbell piece connection. However, although the dumbbell in the patent is convenient to adjust, the contour lines of the cam structures are different, the cam precision requirement is high, the manufacturing process is complex, which greatly improves the production cost. SUMMARY

[0004] According to the utility model embodiments, a weight adjustable dumbbell is provided, which comprises:

[0005] A handle is provided with a fixed disc at both ends;

[0006] A plurality of dumbbell pieces are arranged in sequence along the fixed disc and are movably connected to each other;

[0007] A second sliding groove corresponding to the first sliding groove is arranged on the fixed disc;

[0008] A pair of first sliding grooves are arranged on the dumbbell piece, and the first sliding grooves penetrate the dumbbell piece;

[0009] A pair of adjusting assemblies are connected to the fixed disc at both ends and correspond to the pair of first sliding grooves respectively;

[0010] The adjusting assembly comprises a hanging rod, a shell and a driving mechanism, the hanging rod is movably arranged in the shell and can slide in the shell; the driving mechanism can drive the hanging rod into the corresponding first sliding groove.

[0011] Furthermore, the drive mechanism includes: a rack, a gear, a rotating shaft, and a knob;

[0012] The rack is connected to the connecting rod;

[0013] The shaft is connected to the housing;

[0014] The gear is mounted on the rotating shaft and meshes with the rack;

[0015] The knob is connected to the gear; turning the knob drives the gear to rotate.

[0016] Furthermore, the connecting rod is provided with an elongated hole, and the rack and gear are set in the elongated hole, with the rotating shaft passing through the elongated hole.

[0017] Furthermore, the housing is provided with a weight marking, which is distributed along the circumference of the knob.

[0018] Furthermore, the top of the hanging rod is equipped with a weight mark, and the housing is equipped with a marking observation window, which corresponds to the weight mark.

[0019] Furthermore, the bottom of the housing is evenly provided with several positioning grooves, and the bottom of the hanging rod is provided with positioning protrusions. The positioning protrusions match the positioning grooves and play a positioning role for the hanging rod.

[0020] Furthermore, the upper ends of the dumbbell plates are provided with a first upper hanging protrusion and a first upper hanging groove on both sides respectively; the lower ends of the dumbbell plates are provided with a first lower hanging protrusion and a first lower hanging groove on both sides respectively; the first upper hanging protrusion and the first lower hanging protrusion are located on opposite sides of the dumbbell plates.

[0021] Furthermore, the upper end of the fixed plate near the dumbbell plate is provided with a second upper hanging groove coupled to the first upper hanging protrusion, and the lower end is provided with a second lower hanging protrusion coupled to the first lower hanging groove.

[0022] Furthermore, the upper end of the dumbbell plate is provided with a first positioning hole and a third upper hanging groove on both sides, and a first hanging member is detachably provided in the first positioning hole; the lower end of the dumbbell plate is provided with a second positioning hole and a second lower hanging groove on both sides, and a second hanging member is detachably provided in the second positioning hole; the first hanging member and the second hanging member are located on opposite sides of the dumbbell plate.

[0023] Furthermore, a third positioning hole is provided on the upper end of the fixed plate near the dumbbell plate, and a third hooking component coupled to the third upper hooking groove is detachably installed in the third positioning hole; a third lower hooking groove coupled to the second hooking component is provided at the lower end.

[0024] The weight-adjustable dumbbell according to the present invention allows for quick selection of dumbbell weight, has a stable structure, and requires lower production precision and is simple to manufacture, thus greatly reducing production costs.

[0025] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0026] Figure 1 This is a perspective view schematic diagram according to an embodiment of the present utility model;

[0027] Figure 2 for Figure 1 Top view;

[0028] Figure 3 for Figure 2 Sectional view along axis AA;

[0029] Figure 4 for Figure 2 BB-direction sectional view;

[0030] Figure 5 for Figure 4 Enlarged view of point A;

[0031] Figure 6 for Figure 4 Enlarged view of point D;

[0032] Figure 7 This is a schematic diagram of the structure of one type of dumbbell plate according to an embodiment of the present utility model;

[0033] Figure 8 for Figure 7 Rear view;

[0034] Figure 9 This is a schematic diagram of the structure of a fixing disk according to one embodiment of the present utility model;

[0035] Figure 10 This is a schematic diagram of the structure of a second type of dumbbell plate according to an embodiment of the present utility model;

[0036] Figure 11 This is a schematic cross-sectional view of two second type dumbbell plates assembled together according to an embodiment of the present utility model;

[0037] Figure 12 for Figure 11 Enlarged view of point B;

[0038] Figure 13 This is a schematic diagram of the structure of a second type of fixed plate according to an embodiment of the present utility model. Detailed Implementation

[0039] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0040] First, combineFigures 1-13 The present invention describes a weight-adjustable dumbbell according to an embodiment of the present invention, which is used in fitness training and has a wide range of applications.

[0041] like Figures 1-13 As shown, the weight-adjustable dumbbell of this utility model embodiment includes:

[0042] Handle 1, with a fixing plate 11 at each end of handle 1;

[0043] Several dumbbell plates 2 are arranged at both ends of the handle 1, and are sequentially arranged along the fixed plate 11 and movably connected to each other;

[0044] The dumbbell plate 2 is provided with a pair of first sliding grooves 21, which pass through the dumbbell plate 2; the dumbbell plate 2 is provided with a pair of first sliding grooves 21, so that the dumbbell plate 2 can be placed at both ends of the handle 1, and can also be upside down.

[0045] The fixed plate 11 is provided with a pair of second slide grooves 110 corresponding to a pair of first slide grooves 21, and the second slide grooves 110 penetrate the fixed plate 11;

[0046] A pair of adjusting components 3, with both ends of the pair of adjusting components 3 connected to the fixed plate 11 respectively, and corresponding to a pair of first sliding grooves 21 and a pair of second sliding grooves 110 respectively;

[0047] The adjustment assembly 3 includes a hanging rod 31, a housing 32, and a drive mechanism. The hanging rod 31 is movably disposed within the housing 32 and can slide within the housing 32. The housing 32 serves to support and protect the dumbbell plates 2. The drive mechanism can drive the hanging rod 31 from the second slide groove 110 into the corresponding first slide groove 21. When the hanging rod 31 enters the first slide groove 21, lifting the handle 1 can lift the corresponding dumbbell plates 2.

[0048] Furthermore, such as Figure 1 , 4 As shown in Figure 5, in this embodiment, the drive mechanism includes: rack 33, gear 34, rotating shaft 35 and knob 36;

[0049] The rack 33 is connected to the connecting rod 31;

[0050] The rotating shaft 35 is connected to the housing 32;

[0051] Gear 34 is sleeved on shaft 35 and meshes with rack 33;

[0052] The knob 36 is connected to the gear 34. Rotating the knob 36 can drive the gear 34 to rotate, and the gear 34 drives the rack 33 to move. The connecting rod 31 moves with the rack 33.

[0053] The knobs 36 on a pair of drive mechanisms rotate to drive the corresponding hook rods 31 to move in opposite directions, so that the hook rods 31 enter the dumbbell plates 2 at both ends of the handle 1.

[0054] Furthermore, such as Figures 4-5 As shown, in this embodiment, the hanging rod 31 is provided with an elongated hole 311, the rack 33 and the gear 34 are disposed in the elongated hole 311, and the rotating shaft 35 passes through the elongated hole 311. The elongated hole 311 serves as a guide and limiter.

[0055] Furthermore, in this embodiment, a weight marking (not shown in the figure) is provided on the housing 32. The weight marking is distributed along the circumference of the knob 36. When the knob 36 is rotated to the corresponding weight marking, the handle 1 can be lifted to move the dumbbell plate 2 of the corresponding weight.

[0056] Furthermore, such as Figures 1-2 As shown in Figure 5, in this embodiment, the top of the hanging rod 31 is provided with a weight mark, and the housing 32 is provided with a mark observation window 321. The mark observation window 321 corresponds to the weight mark. As the hanging rod 321 slides in the housing 32, the corresponding weight mark will appear in the observation window 321, which is convenient for knowing the hanging weight.

[0057] Furthermore, such as Figures 5-6 As shown in this embodiment, the bottom of the housing 32 is uniformly provided with a plurality of positioning grooves 322, and the bottom of the hanging rod 31 is provided with a positioning protrusion 312. The positioning protrusion 312 matches the positioning groove 322 and plays a positioning role for the hanging rod 32. When the user picks up the dumbbell, due to the effect of gravity, the positioning protrusion 312 couples with the positioning groove 322 to prevent the hanging rod 31 from sliding.

[0058] Furthermore, such as Figures 7-9 As shown, in this embodiment, the upper ends of the dumbbell plates 2 are respectively provided with a first upper hanging protrusion 22 and a first upper hanging groove 23 on both sides; the lower ends of the dumbbell plates 2 are respectively provided with a first lower hanging protrusion 24 and a first lower hanging groove 25 on both sides; the first upper hanging protrusion 22 and the first lower hanging protrusion 24 are located on opposite sides of the dumbbell plates 2. Thus, the first upper hanging groove 23 of the inner dumbbell plate 2 is coupled with the first upper hanging protrusion 22 of the adjacent outer dumbbell plate 2, and the first lower hanging protrusion 24 of the inner dumbbell plate 2 is coupled with the first lower hanging groove 25 of the connected outer dumbbell plate 2; when the inner dumbbell plate 2 is lifted, it will not drive the outer dumbbell plate 2, but when the outer dumbbell plate 2 is lifted, it will cooperate with the hanging rod 31 to drive the inner dumbbell plate 2.

[0059] Furthermore, such as Figure 9As shown, in this embodiment, the upper end of the fixing plate 11 is provided with a second upper hanging groove 111 coupled to the first upper hanging protrusion 22 on the side close to the dumbbell plate 2, and the lower end is provided with a second lower hanging protrusion 112 coupled to the first lower hanging groove 25.

[0060] Furthermore, such as Figures 7-9 As shown, in this embodiment, the first upper hook protrusion 22, the first lower hook protrusion 24, and the second lower hook protrusion 112 have the same structure; the first upper hook groove 23, the first lower hook groove 25, and the second upper hook groove 111 have the same structure.

[0061] Furthermore, such as Figures 10-12 As shown, in this embodiment, the upper ends of the dumbbell plate 2 are respectively provided with a first positioning hole 26 and a third upper hanging groove 27, and a first hanging member 4 is detachably provided in the first positioning hole 26; the lower ends of the dumbbell plate 2 are respectively provided with a second positioning hole 28 and a second lower hanging groove 29, and a second hanging member 5 is detachably provided in the second positioning hole 28; the first hanging member 4 and the second hanging member 5 are located on opposite sides of the dumbbell plate 2.

[0062] Furthermore, such as Figure 13 As shown, in this embodiment, a third positioning hole 113 is provided on the side of the upper end of the fixed plate 11 near the dumbbell plate 2, and a third hook member (not shown) coupled to the third upper hook groove 27 is detachably provided in the third positioning hole 113; a third lower hook groove 114 coupled to the second hook member 5 is provided at the lower end.

[0063] Furthermore, such as Figures 10-13 As shown, in this embodiment, the first hook member 4, the second hook member 5, and the third hook member have the same structure; the third upper hook groove 27, the second lower hook groove 29, and the third lower hook groove 114 have the same structure.

[0064] Working principle: Rotate knob 36 as needed to extend the hanging rod 31 to a certain length, so that when handle 1 is picked up, the dumbbell plate 2 within the extension length range of the hanging rod 31 is lifted; in addition, the extension length of the two hanging rods 31 can be the same or different.

[0065] Above, refer to Figures 1-13 The present invention describes a weight-adjustable dumbbell according to an embodiment of the present invention, which allows for quick selection of dumbbell weight, has a stable structure, and requires low production precision and is simple to manufacture, thus greatly reducing production costs.

[0066] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.

[0067] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A weight-adjustable dumbbell, characterized in that, Include: A handle, with a fixing plate at each end; A plurality of dumbbell plates are arranged sequentially along the fixed plate and are movably connected to each other; The dumbbell plate is provided with a pair of first sliding grooves, and the first sliding grooves penetrate the dumbbell plate; The fixed plate is provided with a second slide groove corresponding to the first slide groove; A pair of adjusting components, each end of which is connected to the fixed disk and corresponds to the pair of first sliding grooves; The adjustment assembly includes a hook rod, a housing, and a drive mechanism. The hook rod is movably disposed within the housing and can slide within the housing. The drive mechanism can drive the hook rod into the corresponding first slide groove.

2. The weight-adjustable dumbbell as described in claim 1, characterized in that, The drive mechanism includes: a rack, a gear, a rotating shaft, and a knob; The rack is connected to the connecting rod; The rotating shaft is connected to the housing; The gear is sleeved on the rotating shaft, and the gear meshes with the rack; The knob is connected to the gear, and rotating the knob can drive the gear to rotate.

3. The weight-adjustable dumbbell as described in claim 2, characterized in that, The hanging rod is provided with an elongated hole, the rack and the gear are disposed in the elongated hole, and the rotating shaft passes through the elongated hole.

4. The weight-adjustable dumbbell as described in claim 2, characterized in that, The housing is provided with a weight marking, which is distributed along the circumference of the knob.

5. The weight-adjustable dumbbell as described in claim 1, characterized in that, The top of the hanging rod is provided with a weight mark, and the housing is provided with a mark observation window, which corresponds to the weight mark.

6. The weight-adjustable dumbbell as described in claim 1, characterized in that, The bottom of the housing is evenly provided with several positioning grooves, and the bottom of the hanging rod is provided with a positioning protrusion. The positioning protrusion matches the positioning groove and plays a positioning role for the hanging rod.

7. The weight-adjustable dumbbell as described in claim 1, characterized in that, The dumbbell plate has a first upper hanging protrusion and a first upper hanging groove on both sides of its upper end; the dumbbell plate has a first lower hanging protrusion and a first lower hanging groove on both sides of its lower end; the first upper hanging protrusion and the first lower hanging protrusion are located on opposite sides of the dumbbell plate.

8. The weight-adjustable dumbbell as described in claim 7, characterized in that, The upper end of the fixed plate near the dumbbell plate is provided with a second upper hanging groove coupled to the first upper hanging protrusion, and the lower end is provided with a second lower hanging protrusion coupled to the first lower hanging groove.

9. The weight-adjustable dumbbell as described in claim 1, characterized in that, The dumbbell plate has a first positioning hole and a third upper hanging groove on both sides of its upper end, and a first hanging member is detachably installed in the first positioning hole; the dumbbell plate has a second positioning hole and a second lower hanging groove on both sides of its lower end, and a second hanging member is detachably installed in the second positioning hole; the first hanging member and the second hanging member are located on opposite sides of the dumbbell plate.

10. The weight-adjustable dumbbell as described in claim 9, characterized in that, The upper end of the fixed plate is provided with a third positioning hole on the side near the dumbbell plate, and a third hook member coupled to the third upper hook groove is detachably provided in the third positioning hole; the lower end is provided with a third lower hook groove coupled to the second hook member.

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