Weight stack selection assembly and adjustable dumbbell

Abstract

The utility model discloses a weight stack selecting assembly and an adjustable dumbbell. The weight stack selecting assembly comprises a fixing piece which is rotationally connected with a first rotating tongue and a second rotating tongue, the first rotating tongue can be screwed out from one side of the fixing piece, and the second rotating tongue can be screwed out from the other side of the fixing piece; and the cam can rotate relative to the fixing piece, and the cam rotates to drive the first rotating tongue and the second rotating tongue to be synchronously screwed out of or screwed into the fixing piece. The adjustable dumbbell includes a weight stack selection assembly. When the weight stacks need to be connected with the handle, the cam is rotated, so that the first rotating tongue and the second rotating tongue are synchronously screwed out and extend into the fixing grooves corresponding to the weight stacks, when the adjustable dumbbell is used, the first rotating tongue and the second rotating tongue are stressed at the same time, and stress is more reasonable.

Description

Technical Field

[0001] This utility model generally relates to the field of fitness equipment, and more particularly to a weight plate selection component and an adjustable dumbbell. Background Technology

[0002] Dumbbells are a type of fitness equipment that assists users in performing exercises such as chest expansion and biceps training. However, since different exercises require different dumbbell weights, users need to change to dumbbells of different weights or install and remove weight plates. Adjustable dumbbells are a type of dumbbell that, compared to regular dumbbells, make it easier to adjust the weight.

[0003] In existing technology, adjustable dumbbells connect the weight plate to the handle by rotating the handle to drive a single fixed block into the weight plate. However, during the use of adjustable dumbbells, the single fixed block experiences excessive force, resulting in an unreasonable force distribution. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a weight selection component with reasonable force distribution and an adjustable dumbbell.

[0005] In a first aspect, the counterweight component of this utility model includes:

[0006] A fixing member, rotatably connected to a first and a second rotating tongue, wherein the first rotating tongue can be rotated out from one side of the fixing member, and the second rotating tongue can be rotated out from the other side of the fixing member; and

[0007] A cam that can rotate relative to the fixed member.

[0008] The cam rotates, causing the first and second rotary tongues to rotate out or into the fixing member simultaneously.

[0009] Secondly, the adjustable dumbbell of this invention includes a weight plate selection component.

[0010] According to the technical solution provided in the embodiments of this application, when it is necessary to connect the counterweight to the handle, by rotating the cam, the first and second rotating tongues are simultaneously rotated out and inserted into the corresponding fixed groove of the counterweight. When using the adjustable dumbbell, the first and second rotating tongues are subjected to force at the same time, and the force is more reasonable. Attached Figure Description

[0011] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0012] Figure 1A schematic diagram of the structure of the first and second rotary tongues of the counterweight plate selection component screwing into the fixing member according to an embodiment of the present invention;

[0013] Figure 2 A schematic diagram of the structure of the first and second rotary tongues of the counterweight plate selection component screwing into the fixing member according to an embodiment of the present invention;

[0014] Figure 3 For along Figure 2 Sectional view of line AA in the middle;

[0015] Figure 4 A schematic diagram of the structure of the first and second rotating tongues of the counterweight plate selection component in one embodiment of the present invention;

[0016] Figure 5 A schematic diagram of the structure of the first and second rotating tongues of the counterweight plate selection component in one embodiment of the present invention;

[0017] Figure 6 For along Figure 5 Sectional view of the middle BB line;

[0018] Figure 7 This is a schematic diagram of the structure of an adjustable dumbbell according to another embodiment of the present invention;

[0019] Figure 8 For along Figure 7 A cross-sectional view of the CC line. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] One embodiment of this utility model is shown below, please refer to... Figures 1-6 A counterweight selection assembly 10 includes: a fixing member 100, which is rotatably connected to a first rotating tongue 210 and a second rotating tongue 220, wherein the first rotating tongue 210 can be rotated out from one side of the fixing member 100 and the second rotating tongue 220 can be rotated out from the other side of the fixing member 100; and a cam 300, which can rotate relative to the fixing member 100. The rotation of the cam 300 drives the first rotating tongue 210 and the second rotating tongue 220 to rotate out or into the fixing member 100 simultaneously.

[0023] In this embodiment of the invention, the fixing member 100 is rotatably connected to a first rotary tongue 210 and a second rotary tongue 220, and the cam 300 is rotatable relative to the fixing member 100. The rotation of the cam 300 can drive the first rotary tongue 210 and the second rotary tongue 220 to simultaneously rotate out or into the fixing member 100. Alternatively, the cam 300 can be rotated by turning the handle, thereby driving the first rotary tongue 210 and the second rotary tongue 220 to move. The counterweight selection component is connected to the handle and can move with the handle. Fixing grooves can be provided on the counterweights.

[0024] Rotating the handle causes the cam 300 to rotate, which in turn causes the first tongue 210 and the second tongue 220 to rotate out of the fixing piece 100 simultaneously. The first tongue 210 and the second tongue 220 then rotate into the fixing groove simultaneously, thereby connecting the counterweight plate with the counterweight plate selection component. This allows the counterweight plate to follow the movement of the handle, thereby increasing the weight of the adjustable dumbbell.

[0025] Rotating the handle causes the cam 300 to rotate, which in turn causes the first tongue 210 and the second tongue 220 to simultaneously screw into the fixing member 100. The first tongue 210 and the second tongue 220 then simultaneously screw out of the fixing groove, thereby separating the counterweight plate from the counterweight plate selection component. This prevents the counterweight plate from moving with the handle, thus reducing the weight of the adjustable dumbbell.

[0026] When the counterweight is selected by the counterweight selection component, that is, the first tongue 210 and the second tongue 220 are screwed into the fixing groove respectively. During the use of the adjustable dumbbell, the first tongue 210 and the second tongue 220 are subjected to force at the same time, which makes the force distribution more reasonable.

[0027] Furthermore, the fixing member 100 is slidably connected to the driving block 110, and the first rotary tongue 210 and the second rotary tongue 220 are respectively connected to the driving block 110. The cam 300 rotates, causing the driving block 110 to slide. The sliding of the driving block 110 causes the first rotary tongue 210 and the second rotary tongue 220 to rotate out or into the fixing member 100 simultaneously.

[0028] In an embodiment of this utility model, the cam 300 rotates, causing the drive block 110 to slide, which in turn causes the first rotary tongue 210 and the second rotary tongue 220 to rotate out or into the fixing member 100 simultaneously, so that the first rotary tongue 210 and the second rotary tongue 220 can maintain synchronous movement.

[0029] Furthermore, the outer edge of the cam 300 is provided with a number of protrusions 310 and a number of recesses 320, and the drive block 110 abuts against the outer edge of the cam 300 under the elastic force of the elastic member 200.

[0030] In an embodiment of this utility model, the outer edge of the cam 300 is provided with a plurality of protrusions 310 and a plurality of recesses 320. The protrusions 310 and recesses 320 may be, but are not limited to, spaced apart. The drive block 110 abuts against the outer edge of the cam 300 under the elastic force of the elastic member 200. During the rotation of the cam 300, the drive block 110 remains in contact with the outer edge of the cam 300. When the drive block 110 contacts the protrusions 310 or the recesses 320, the position of the drive block 110 relative to the fixing member 100 changes. That is, as the cam 300 rotates, the drive block 110 can slide, thereby causing the first rotary tongue 210 and the second rotary tongue 220 to simultaneously rotate out or into the fixing member 100. Figure 6 As shown, when the drive block 110 contacts the recess 320, the first rotary tongue 210 and the second rotary tongue 220 simultaneously rotate out of the fixing member 100; as Figure 3 As shown, when the drive block 110 contacts the protrusion 310, the first rotary tongue 210 and the second rotary tongue 220 simultaneously screw into the fixing member 100. Of course, adjacent protrusions 310 and recesses 320 can be transitioned by an arc surface to ensure the smooth movement of the drive block 110 and the cam 300.

[0031] Furthermore, the elastic element 200 is located on the side of the drive block 110 facing away from the cam 300.

[0032] In this embodiment of the invention, the elastic element 200 is located on the side of the drive block 110 facing away from the cam 300, allowing the elastic element 200 to bear the axial load and improving its reliability. The elastic element 200 can be, but is not limited to, a spring. A third receiving cavity can be provided on the fixing member 100, and the elastic element 200 can be placed into the third receiving cavity, thereby improving the stability of the elastic element 200.

[0033] Furthermore, the drive block 110 is provided with a limiting cavity 111, and the fixing member 100 is fixedly connected to the limiting member 140. The limiting member 140 is at least partially placed in the limiting cavity 111, and the length direction of the limiting cavity 111 is parallel to the sliding direction of the drive block 110.

[0034] In the embodiments of this utility model, the movement range of the driving block 110 relative to the fixing member 100 is limited by the cooperation of the limiting member 140 and the limiting cavity 111, thus ensuring the stability of the movement of the driving block 110. Of course, the number of limiting members 140 and limiting cavities 111 can be set to one or more.

[0035] Furthermore, a first connecting portion 120 is provided on one side of the drive block 110, and the first connecting portion 120 is provided with a first sliding cavity 121. A first rotating tongue 210 is fixedly connected to a first sliding member 211, and the first sliding member 211 is at least partially located in the first sliding cavity 121. A second connecting portion 130 is provided on the other side of the drive block 110, and the second connecting portion 130 is provided with a second sliding cavity 131. A second rotating tongue 220 is fixedly connected to a second sliding member 221, and the second sliding member 221 is at least partially located in the second sliding cavity 131.

[0036] In an embodiment of this utility model, the first sliding member 211 can rotate and slide relative to the first sliding cavity 121, thereby ensuring that the driving block 110 slides and drives the first rotary tongue 210 to move. The first sliding member 211 is at least partially located in the first sliding cavity 121, which can prevent the first sliding member 211 from disengaging from the first sliding cavity 121.

[0037] The second sliding member 221 can rotate and slide relative to the second sliding cavity 131, thereby ensuring that the drive block 110 slides and drives the second rotary tongue 220 to move. The second sliding member 221 is at least partially located in the second sliding cavity 131, which can prevent the second sliding member 221 from disengaging from the second sliding cavity 131.

[0038] Furthermore, a first receiving cavity 212 is formed on one side of the first rotary tongue 210, and the first connecting part 120 extends into the first receiving cavity 212. The first sliding member 211 passes through the first sliding cavity 121, and both ends of the first sliding member 211 are fixedly connected to the first rotary tongue 210.

[0039] A second receiving cavity 222 is provided on one side of the second rotary tongue 220. The second connecting part 130 extends into the second receiving cavity 222. The second sliding member 221 passes through the second sliding cavity 131. Both ends of the second sliding member 221 are fixedly connected to the second rotary tongue 220.

[0040] In an embodiment of this utility model, a first receiving cavity 212 is provided on one side of the first rotary tongue 210, and the first connecting part 120 extends into the first receiving cavity 212, which can reduce the movement of the first connecting part 120 relative to the first rotary tongue 210 along the axial direction of the first sliding member 211. The first sliding member 211 passes through the first sliding cavity 121, and both ends of the first sliding member 211 are fixedly connected to the first rotary tongue 210, ensuring the stability of the connection between the first sliding member 211 and the first rotary tongue 210.

[0041] A second receiving cavity 222 is provided on one side of the second rotary tongue 220. The second connecting part 130 extends into the second receiving cavity 222, which can reduce the movement of the second connecting part 130 relative to the second rotary tongue 220 along the axial direction of the second sliding member 221. The second sliding member 221 passes through the second sliding cavity 131, and both ends of the second sliding member 221 are fixedly connected to the second rotary tongue 220, ensuring the stability of the connection between the second sliding member 221 and the second rotary tongue 220.

[0042] Furthermore, one side of the fastener 100 is provided with a first opening 150 for the first rotary tongue 210 to be rotated out, and the other side of the fastener 100 is provided with a second opening 160 for the second rotary tongue 220 to be rotated out.

[0043] In an embodiment of this utility model, the fixing member 100 can be configured as a housing, and the driving block 110, elastic member 200, first rotary tongue 210, and second rotary tongue 220 can be disposed inside the fixing member 100, thereby avoiding the exposure of the internal structure of the counterweight selection component and improving the reliability of the counterweight selection component.

[0044] When the cam 300 rotates, the first tongue 210 can rotate out of the first opening 150 or rotate in through the first opening 150. By setting the first opening 150, the fixing member 100 is prevented from interfering with the movement of the first tongue 210. The second tongue 220 can rotate out of the second opening 160 or rotate in through the second opening 160. By setting the second opening 160, the fixing member 100 is prevented from interfering with the movement of the second tongue 220.

[0045] Furthermore, the first rotary tongue 210 and the second rotary tongue 220 are respectively eccentrically rotatably connected to the fixing member 100.

[0046] In an embodiment of this utility model, when the cam 300 rotates, it drives the drive block 110 to slide, which in turn drives the first rotary tongue 210 and the second rotary tongue 220 to rotate. Since the first rotary tongue 210 and the second rotary tongue 220 are respectively eccentrically connected to the fixing member 100, the first rotary tongue 210 and the second rotary tongue 220 can be synchronously rotated out or into the fixing member 100.

[0047] Another embodiment of this utility model is as follows, referencing Figure 7 and 8 An adjustable dumbbell includes a weight plate selection component 10.

[0048] In an embodiment of this utility model, the adjustable dumbbell can be equipped with multiple weight plate selection components and multiple weight plates. Each weight plate selection component corresponds to a weight plate. By rotating the handle, one or more weight plate selection components can select a weight plate, so that the weight plate selected by the weight plate selection component moves with the handle.

[0049] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A counterweight selection component, characterized in that, include: A fixing member, rotatably connected to a first and a second rotating tongue, wherein the first rotating tongue can be rotated out from one side of the fixing member, and the second rotating tongue can be rotated out from the other side of the fixing member; and A cam that can rotate relative to the fixed member. The cam rotates, causing the first and second rotary tongues to rotate out or into the fixing member simultaneously.

2. The counterweight selection component according to claim 1, characterized in that, The fixing member is slidably connected to a driving block, and the first and second rotary tongues are respectively connected to the driving block. The rotation of the cam causes the drive block to slide. The sliding of the drive block causes the first and second rotary tongues to rotate out or into the fixing member simultaneously.

3. The counterweight selection component according to claim 2, characterized in that, The outer edge of the cam is provided with several protrusions and several recesses, and the driving block abuts against the outer edge of the cam under the elastic force of the elastic element.

4. The counterweight selection component according to claim 3, characterized in that, The elastic element is located on the side of the drive block opposite to the cam.

5. The counterweight selection component according to claim 3, characterized in that, The driving block is provided with a limiting cavity, and the fixing member is fixedly connected to the limiting member. The limiting member is at least partially placed in the limiting cavity, and the length direction of the limiting cavity is parallel to the sliding direction of the driving block.

6. The counterweight selection component according to claim 2, characterized in that, The drive block has a first connecting portion on one side, the first connecting portion has a first sliding cavity, the first rotary tongue is fixedly connected to a first sliding member, and the first sliding member is at least partially located within the first sliding cavity. A second connecting part is provided on the other side of the drive block. The second connecting part is provided with a second sliding cavity. The second rotary tongue is fixedly connected to a second sliding member. The second sliding member is at least partially located in the second sliding cavity.

7. The counterweight selection component according to claim 6, characterized in that, A first receiving cavity is formed on one side of the first rotary tongue, the first connecting portion extends into the first receiving cavity, the first sliding member passes through the first sliding cavity, and both ends of the first sliding member are fixedly connected to the first rotary tongue. A second receiving cavity is provided on one side of the second rotary tongue, the second connecting part extends into the second receiving cavity, the second sliding member passes through the second sliding cavity, and the two ends of the second sliding member are respectively fixedly connected to the second rotary tongue.

8. The counterweight selection component according to claim 1, characterized in that, One side of the fixing member is provided with a first opening for the first rotary tongue to be rotated out, and the other side of the fixing member is provided with a second opening for the second rotary tongue to be rotated out.

9. The counterweight selection component according to claim 1, characterized in that, The first and second rotary tongues are respectively eccentrically rotatably connected to the fixing member.

10. An adjustable dumbbell, characterized in that, Includes the selected component of the counterweight as described in any one of claims 1 to 9.

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