阅读说明：本技术 一种间距可调的多功能哑铃 (Multi-functional dumbbell of interval adjustable ) 是由 郭传友 赵方华 于 2021-08-15 设计创作，主要内容包括：本发明涉及健身器材技术领域,具体是一种间距可调的多功能哑铃,包括左侧手柄,所述左侧手柄的一侧设置有右侧手柄,所述左侧手柄的外端安装有左侧哑铃片,所述右侧手柄的外端安装有右侧哑铃片,所述左侧手柄的外端滑动有第一哑铃片安装杆,所述右侧手柄的外端滑动有第二哑铃片安装杆,所述第一哑铃片安装杆的内端设置有左侧内卡扣,所述第一哑铃片安装杆的外端设置有左侧外锁扣,所述第二哑铃片安装杆的内端设置有右侧内卡扣,所述第二哑铃片安装杆的外端设置有右侧外锁扣。本发明哑铃在拆分组装后能作为腹肌轮使用,能进行哑铃片间距的调节,哑铃片安装杆的凸出长度可调节,安装一个哑铃片时,多余的哑铃片安装杆收缩。(The invention relates to the technical field of fitness equipment, in particular to a multifunctional dumbbell with an adjustable space, which comprises a left handle, wherein a right handle is arranged on one side of the left handle, a left dumbbell piece is arranged at the outer end of the left handle, a right dumbbell piece is arranged at the outer end of the right handle, a first dumbbell piece mounting rod is arranged at the outer end of the left handle in a sliding manner, a second dumbbell piece mounting rod is arranged at the outer end of the right handle in a sliding manner, a left inner buckle is arranged at the inner end of the first dumbbell piece mounting rod, a left outer buckle is arranged at the outer end of the first dumbbell piece mounting rod, a right inner buckle is arranged at the inner end of the second dumbbell piece mounting rod, and a right outer buckle is arranged at the outer end of the second dumbbell piece mounting rod. The dumbbell can be used as an abdominal muscle wheel after being disassembled and assembled, the space between the dumbbell pieces can be adjusted, the protruding length of the dumbbell piece mounting rod can be adjusted, and when one dumbbell piece is mounted, the redundant dumbbell piece mounting rods are retracted.)

1. A multifunctional dumbbell with an adjustable space comprises a left handle (1) and is characterized in that a right handle (2) is arranged on one side of the left handle (1), a left dumbbell piece (3) is installed on the outer end of the left handle (1), a right dumbbell piece (4) is installed on the outer end of the right handle (2), a first dumbbell piece installing rod (7) slides on the outer end of the left handle (1), a second dumbbell piece installing rod (8) slides on the outer end of the right handle (2), a left inner buckle (22) is arranged on the inner end of the first dumbbell piece installing rod (7), a left outer lock catch (6) is arranged on the outer end of the first dumbbell piece installing rod (7), a right inner buckle (23) is arranged on the inner end of the second dumbbell piece installing rod (8), a right outer lock catch (5) is arranged on the outer end of the second dumbbell piece installing rod (8), first internal thread hole (11) have been seted up to the inboard of left side handle (1), first external screw thread pole (12) are installed to the inboard of right side handle (2).

2. The multifunctional dumbbell with the adjustable interval according to claim 1, characterized in that sliding blocks (9) are arranged inside the left dumbbell piece (3) and the right dumbbell piece (4), a bearing (10) is installed on the outer side of each sliding block (9), a first fixing screw (13) is arranged at the outer end of the left handle (1), a second fixing screw (14) is arranged at the outer end of the right handle (2), a first sliding groove (16) is formed in the outer side of the first dumbbell piece mounting rod (7), and a second sliding groove (18) is formed in the outer side of the second dumbbell piece mounting rod (8).

3. The multifunctional dumbbell with the adjustable interval according to claim 1, characterized in that a second internal threaded hole (17) is formed in one side of the second dumbbell piece mounting rod (8), a second external threaded rod recovery hole (19) is formed in the outer end of the first dumbbell piece mounting rod (7), a limiting block (20) is arranged in the second external threaded rod recovery hole (19) in a sliding manner, a second external threaded rod (15) is welded to the outer side of the limiting block (20), and a tension spring (21) is arranged on the inner side of the limiting block (20).

4. The multi-functional dumbbell with adjustable spacing according to claim 1, characterized in that the outer surface of the first dumbbell sheet mounting rod (7) is provided with a first external thread, the left inner buckle (22) and the left outer buckle (6) are rotatably mounted at the position of the outer surface of the first dumbbell sheet mounting rod (7), and the left dumbbell sheet (3) is fixed at the position of the outer side of the first dumbbell sheet mounting rod (7) through the left inner buckle (22) and the left outer buckle (6).

5. The multi-functional dumbbell with adjustable spacing according to claim 1, characterized in that the outer surface of the second dumbbell plate mounting rod (8) is provided with a second external thread, the right inner buckle (23) and the right outer buckle (5) are rotatably mounted on the outer surface of the second dumbbell plate mounting rod (8), and the right dumbbell plate (4) is fixed on the outer side of the second dumbbell plate mounting rod (8) through the right inner buckle (23) and the right outer buckle (5).

6. The multi-functional dumbbell with adjustable interval according to claim 1, characterized in that the first internally threaded hole (11) corresponds to the position of the first externally threaded rod (12), the first externally threaded rod (12) rotates at the inner position of the first internally threaded hole (11), and the left hand grip (1) and the right hand grip (2) are fixedly connected with the first externally threaded rod (12) through the first internally threaded hole (11).

7. The multi-functional dumbbell with adjustable spacing according to claim 2, characterized in that the inner side of the slider (9) is provided with a protrusion, the protrusion on the inner side of the slider (9) slides in the inner position of the first sliding groove (16) or the second sliding groove (18), the left dumbbell piece (3) is slidably mounted on the outer surface position of the first dumbbell piece mounting rod (7) through the protrusion inside the slider (9) and the first sliding groove (16), and the right dumbbell piece (4) is slidably mounted on the outer surface position of the second dumbbell piece mounting rod (8) through the protrusion inside the slider (9) and the second sliding groove (18).

8. The multi-functional dumbbell with adjustable spacing according to claim 2, characterized in that the rear end of the first fixing screw (13) penetrates through the left handle (1) and is fixed at the outer surface position of the first dumbbell sheet mounting rod (7), the rear end of the second fixing screw (14) penetrates through the right handle (2) and is fixed at the outer surface position of the second dumbbell sheet mounting rod (8), the left dumbbell sheet (3) is rotatably mounted at the outer surface of the first dumbbell sheet mounting rod (7) through the slider (9) and the bearing (10), and the right dumbbell sheet (4) is rotatably mounted at the outer surface of the second dumbbell sheet mounting rod (8) through the slider (9) and the bearing (10).

9. The multi-functional dumbbell with adjustable spacing according to claim 3, characterized in that the second external threaded rod (15) corresponds to the position of the second internal threaded hole (17), the second external threaded rod (15) rotates at the internal position of the second internal threaded hole (17), the outer ends of the first dumbbell sheet mounting rod (7) and the second dumbbell sheet mounting rod (8) are fixedly connected with the second internal threaded hole (17) through the second external threaded rod (15), the inner end of the second external threaded rod (15) is slidably mounted at the outer end position of the first dumbbell sheet mounting rod (7), and the inner end of the second external threaded rod (15) and the limiting block (20) are elastically connected at the internal position of the second external threaded rod recycling hole (19) through a tension spring (21).

Technical Field

The invention relates to the technical field of fitness equipment, in particular to a multifunctional dumbbell with an adjustable space.

Background

The dumbbell is an auxiliary device for weight lifting and body building exercises, is smaller than the dumbbell, does not make a sound when exercising, is named as the dumbbell, is one of the body building devices, can decorate muscle lines after being insisted on exercising the dumbbell for a long time, increases muscle endurance, can make muscles firm, strengthens muscle fibers and increases muscle strength after being frequently exercised by the dumbbell with larger weight.

However, the dumbbell on the market at present is single in functionality, can only be used as the dumbbell, and is not favorable for the application range of the device, and the dumbbell generally can not adjust the space between the dumbbell pieces, so that the dumbbell can not be adjusted according to the size of the hand of a user, can not be adjusted according to the preference of the user, and can not adjust the adjustment of the dumbbell piece mounting rod generally, so that when one dumbbell piece is mounted, the redundant dumbbell piece mounting rod protrudes more, the hand is easily touched in the application process, and the dumbbell is not favorable for the safety of use. Accordingly, those skilled in the art have provided a multi-functional dumbbell with an adjustable interval to solve the above-mentioned problems occurring in the background art.

Disclosure of Invention

The invention aims to provide a multifunctional dumbbell with an adjustable space, which aims to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a multi-functional dumbbell of interval adjustable, includes the left side handle, one side of left side handle is provided with the right side handle, the left side dumbbell piece is installed to the outer end of left side handle, the right side dumbbell piece is installed to the outer end of right side handle, the outer end of left side handle slides there is first dumbbell piece installation pole, the outer end of right side handle slides there is second dumbbell piece installation pole, the inner of first dumbbell piece installation pole is provided with left side inner buckle, the outer end of first dumbbell piece installation pole is provided with the outer hasp of left side, the inner of second dumbbell piece installation pole is provided with right side inner buckle, the outer end of second dumbbell piece installation pole is provided with the outer hasp of right side, first internal thread hole has been seted up to the inboard of left side handle, first external screw thread pole is installed to the inboard of right side handle.

As a further scheme of the invention: the dumbbell piece of left side and the inside of right side dumbbell piece all are provided with the slider, the bearing is installed in the outside of slider, the outer end of left side handle is provided with first set screw, the outer end of right side handle is provided with second set screw, first spout has been seted up in the outside of first dumbbell piece installation pole, the second spout has been seted up in the outside of second dumbbell piece installation pole.

As a still further scheme of the invention: a second inner threaded hole is formed in one side of the second dumbbell piece mounting rod, a second outer threaded rod recovery hole is formed in the outer end of the first dumbbell piece mounting rod, a limiting block slides in the second outer threaded rod recovery hole, a second outer threaded rod is welded to the outer side of the limiting block, and a tension spring is mounted on the inner side of the limiting block.

As a still further scheme of the invention: the outer surface of the first dumbbell piece mounting rod is provided with a first external thread, the left inner buckle and the left outer buckle are rotatably mounted at the outer surface position of the first dumbbell piece mounting rod, and the left dumbbell piece is fixed at the outer side position of the first dumbbell piece mounting rod through the left inner buckle and the left outer buckle.

As a still further scheme of the invention: the outer surface of the second dumbbell piece mounting rod is provided with second external threads, the right inner buckle and the right outer lock catch are rotatably mounted at the outer surface position of the second dumbbell piece mounting rod, and the right dumbbell piece is fixed at the outer side position of the second dumbbell piece mounting rod through the right inner buckle and the right outer lock catch.

As a still further scheme of the invention: first internal thread hole is corresponding with the position of first external screw thread pole, first external screw thread pole rotates in the inside position department in first internal thread hole, left side handle and right side handle pass through first internal thread hole and first external screw thread pole fixed connection.

As a still further scheme of the invention: the inner side of the sliding block is provided with a bulge, the bulge on the inner side of the sliding block slides in the inner position of the first sliding groove or the second sliding groove respectively, the left dumbbell piece is slidably mounted on the outer surface position of the first dumbbell piece mounting rod through the bulge inside the sliding block and the first sliding groove, and the right dumbbell piece is slidably mounted on the outer surface position of the second dumbbell piece mounting rod through the bulge inside the sliding block and the second sliding groove.

As a still further scheme of the invention: the rear end of the first fixing screw penetrates through the left handle and is fixed at the outer surface position of the first dumbbell piece mounting rod, the rear end of the second fixing screw penetrates through the right handle and is fixed at the outer surface position of the second dumbbell piece mounting rod, the left dumbbell piece is rotatably mounted on the outer surface of the first dumbbell piece mounting rod through a slider and a bearing, and the right dumbbell piece is rotatably mounted on the outer surface of the second dumbbell piece mounting rod through a slider and a bearing.

As a still further scheme of the invention: the outer threaded rod of second is corresponding with the position in second internal thread hole, the outer threaded rod of second rotates in the inside position department in second internal thread hole, the outer end of first dumbbell piece installation pole and second dumbbell piece installation pole passes through second outer threaded rod and second internal thread hole fixed connection, the inner slidable mounting of the outer threaded rod of second is in the outer end position department of first dumbbell piece installation pole, the inner of the outer threaded rod of second passes through extension spring elastic connection in the inside position department in second outer threaded rod recovery hole with the stopper.

Compared with the prior art, the invention has the beneficial effects that:

1. the dumbbell can be used as an abdominal muscle wheel after being disassembled and assembled, reduces the purchasing of fitness equipment, lowers the fitness cost, is beneficial to the use diversity of the device, can adjust the space between dumbbell pieces, can adjust according to the size of the hand of a user, and can adjust according to the preference of the user;

2. the length of the projection of the dumbbell piece mounting rod is adjustable, when one dumbbell piece is mounted, the redundant dumbbell piece mounting rod is retracted, flatness of the side face of the dumbbell is facilitated, the projection is prevented from touching the hand of a user, use safety is improved, and the dumbbell piece mounting rod is more attractive.

Drawings

FIG. 1 is a schematic structural view of a multi-functional dumbbell with adjustable spacing;

FIG. 2 is a disassembled view of a multi-functional dumbbell with adjustable spacing;

FIG. 3 is a schematic structural diagram of a left dumbbell sheet in a multi-functional dumbbell with adjustable spacing;

FIG. 4 is a perspective view of a left handle in a multi-functional dumbbell with adjustable spacing;

FIG. 5 is a schematic structural view of a right-side handle in a multi-functional dumbbell with adjustable spacing;

fig. 6 is a schematic structural view of a portion a in fig. 4 of a multi-functional dumbbell with adjustable spacing.

In the figure: 1. a left side handle; 2. a right handle; 3. a left dumbbell sheet; 4. a dumbbell piece on the right side; 5. a right outer lock catch; 6. a left outer shackle; 7. a first dumbbell sheet mounting bar; 8. a second dumbbell sheet mounting bar; 9. a slider; 10. a bearing; 11. a first internally threaded bore; 12. a first externally threaded rod; 13. a first set screw; 14. a second set screw; 15. a second outer threaded rod; 16. a first chute; 17. a second internally threaded bore; 18. a second chute; 19. a second outer threaded rod recovery hole; 20. a limiting block; 21. a tension spring; 22. a left inner buckle; 23. the right side is internally buckled.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, in the embodiment of the invention, a multi-functional dumbbell with adjustable space comprises a left handle 1, a right handle 2 is arranged on one side of the left handle 1, a left dumbbell sheet 3 is arranged on the outer end of the left handle 1, a right dumbbell sheet 4 is arranged on the outer end of the right handle 2, a first dumbbell sheet mounting rod 7 is arranged on the outer end of the left handle 1 in a sliding manner, a second dumbbell sheet mounting rod 8 is arranged on the outer end of the right handle 2 in a sliding manner, a left inner buckle 22 is arranged on the inner end of the first dumbbell sheet mounting rod 7, a left outer buckle 6 is arranged on the outer end of the first dumbbell sheet mounting rod 7, a right inner buckle 23 is arranged on the inner end of the second dumbbell sheet mounting rod 8, a right outer buckle 5 is arranged on the outer end of the second dumbbell sheet mounting rod 8, a first inner threaded hole 11 is arranged on the inner side of the left handle 1, a first outer threaded rod 12 is arranged on the inner side of the right handle 2, the outer surface of the first dumbbell plate mounting rod 7 is provided with a first external thread, the left inner buckle 22 and the left outer buckle 6 are both rotatably mounted at the outer surface position of the first dumbbell plate mounting rod 7, the left dumbbell plate 3 is fixed at the outer side position of the first dumbbell plate mounting rod 7 through the left inner buckle 22 and the left outer buckle 6, the outer surface of the second dumbbell plate mounting rod 8 is provided with a second external thread, the right inner buckle 23 and the right outer buckle 5 are both rotatably mounted at the outer surface position of the second dumbbell plate mounting rod 8, the right dumbbell plate 4 is fixed at the outer side position of the second dumbbell plate mounting rod 8 through the right inner buckle 23 and the right outer buckle 5, the first internal thread hole 11 corresponds to the position of the first external thread rod 12, the first external thread rod 12 rotates at the internal position of the first internal thread hole 11, the left handle 1 and the right handle 2 are fixedly connected with the first internal thread hole 11, firstly, the taking-out device adjusts the lengths of a first dumbbell sheet mounting rod 7 and a second dumbbell sheet mounting rod 8 according to the configuration quantity of the left dumbbell sheet 3 and the right dumbbell sheet 4, when in adjustment, the first dumbbell sheet mounting rod 7 slides in the left handle 1, the second dumbbell sheet mounting rod 8 slides in the right handle 2, the left dumbbell sheet 3 is slidably mounted on the outer surface of the first dumbbell sheet mounting rod 7, the right dumbbell sheet 4 is slidably mounted on the outer surface of the second dumbbell sheet mounting rod 8, the left outer lock catch 6 is taken out, the left outer lock catch 6 is rotated to the outer end of the first dumbbell sheet mounting rod 7, the left inner buckle 22 at the inner end of the first dumbbell sheet mounting rod 7 is rotated, the left dumbbell sheet 3 is fixed on the outer surface of the first dumbbell sheet mounting rod 7, the right outer lock catch 5 is taken out, the right outer lock catch 5 is rotated to the outer end of the second dumbbell sheet mounting rod 8, rotating a right inner buckle 23 at the inner end of a second dumbbell sheet mounting rod 8, fixing a right dumbbell sheet 4 to the outer surface of the second dumbbell sheet mounting rod 8, adjusting the distance of a left dumbbell sheet 3 at the outer end of a left handle 1 through a first dumbbell sheet mounting rod 7, adjusting the distance of a right dumbbell sheet 4 at the outer end of a right handle 2 through a second dumbbell sheet mounting rod 8, fixing the first dumbbell sheet mounting rod 7 inside the left handle 1, fixing the second dumbbell sheet mounting rod 8 inside the right handle 2 to complete the adjustment of the distance between the left dumbbell sheet 3 and the right dumbbell sheet 4, starting the exercise dumbbell operation, separating the left handle 1 from the right handle 2 by rotating a first outer threaded rod 12 inside a first inner threaded hole 11 when the shape of the equipment needs to be changed, and reversely rotating the left handle 1 and the right handle 2, the outer ends of the first dumbbell piece mounting rod 7 and the second dumbbell piece mounting rod 8 correspond to each other, the device is changed in shape, the left side handle 1 and the right side handle 2 are held in hand, the left side dumbbell piece 3 and the right side dumbbell piece 4 rotate on the outer surface of the first dumbbell piece mounting rod 7 or the outer surface of the second dumbbell piece mounting rod 8 and serve as abdominal muscle wheels, finally, the first dumbbell piece mounting rod 7 and the second dumbbell piece mounting rod 8 are separated from each other, the left side handle 1 and the right side handle 2 are reversed, the first external threaded rod 12 is turned into the inside of the first internal threaded hole 11, and the device is recovered to be a dumbbell.

In fig. 2, 3, 4, 5: the insides of the left dumbbell piece 3 and the right dumbbell piece 4 are both provided with a slide block 9, the outside of the slide block 9 is provided with a bearing 10, the outer end of the left handle 1 is provided with a first fixing screw 13, the outer end of the right handle 2 is provided with a second fixing screw 14, the outside of the first dumbbell piece mounting rod 7 is provided with a first chute 16, the outside of the second dumbbell piece mounting rod 8 is provided with a second chute 18, the inside of the slide block 9 is provided with a bulge, the bulge inside of the slide block 9 slides in the inner position of the first chute 16 or the second chute 18 respectively, the left dumbbell piece 3 is slidably mounted at the outer surface position of the first dumbbell piece mounting rod 7 through the bulge inside the slide block 9 and the first chute 16, the right dumbbell piece 4 is slidably mounted at the outer surface position of the second dumbbell piece mounting rod 8 through the bulge inside the slide block 9 and the second chute 18, the rear end of the first fixing screw 13 penetrates through the left handle 1 and is fixed at the outer surface position of the first dumbbell piece mounting rod 7, the rear end of a second fixing screw 14 penetrates through the right handle 2 and is fixed at the position of the outer surface of a second dumbbell sheet mounting rod 8, a left dumbbell sheet 3 is rotatably mounted on the outer surface of a first dumbbell sheet mounting rod 7 through a slider 9 and a bearing 10, a right dumbbell sheet 4 is rotatably mounted on the outer surface of a second dumbbell sheet mounting rod 8 through a slider 9 and a bearing 10, the lengths of the first dumbbell sheet mounting rod 7 and the second dumbbell sheet mounting rod 8 are adjusted according to the configuration number of the left dumbbell sheets 3 and the right dumbbell sheets 4, during adjustment, the first fixing screw 13 is unscrewed, the first dumbbell sheet mounting rod 7 slides in the left handle 1, the length of the first dumbbell sheet mounting rod 7 is adjusted, the second fixing screw 14 is unscrewed, the second dumbbell sheet mounting rod 8 slides in the right handle 2, the length of the second dumbbell sheet mounting rod 8 is adjusted, the left dumbbell sheet 3 is slidably mounted on the outer surface of the first dumbbell sheet mounting rod 7 through a slider 9, the protrusion in the slider 9 is clamped in the first chute 16, the right dumbbell piece 4 is slidably mounted on the outer surface of the second dumbbell piece mounting rod 8 through the slider 9, the protrusion in the slider 9 is clamped in the second chute 18, the left outer lock catch 6 is taken out, the left outer lock catch 6 is rotated to the outer end of the first dumbbell piece mounting rod 7, the left inner lock catch 22 at the inner end of the first dumbbell piece mounting rod 7 is rotated, the left dumbbell piece 3 is fixed on the outer surface of the first dumbbell piece mounting rod 7, the right outer lock catch 5 is taken out, the right outer lock catch 5 is rotated to the outer end of the second dumbbell piece mounting rod 8, the right inner lock catch 23 at the inner end of the second dumbbell piece mounting rod 8 is rotated, the right dumbbell piece 4 is fixed on the outer surface of the second dumbbell piece mounting rod 8, the distance of the left dumbbell piece 3 at the outer end of the left handle 1 is adjusted through the first dumbbell piece mounting rod 7 according to the size or the use habit of a user, adjust the distance that right side dumbbell piece 4 is located 2 outer ends of right side handle through second dumbbell piece installation pole 8, rotate first set screw 13, through first set screw 13 first dumbbell piece installation pole 7 is fixed to the inside of left side handle 1, rotate second set screw 14, through second set screw 14 second dumbbell piece installation pole 8 is fixed to the inside of right side handle 2, accomplish the regulation of left side dumbbell piece 3 and 4 intervals of right side dumbbell piece, then, begin dumbbell body-building operation.

In fig. 4, 5, 6: one side of the second dumbbell piece mounting rod 8 is provided with a second internal threaded hole 17, the outer end of the first dumbbell piece mounting rod 7 is internally provided with a second external threaded rod recovery hole 19, the inside of the second external threaded rod recovery hole 19 slides to a limit block 20, the outside of the limit block 20 is welded with a second external threaded rod 15, the inside of the limit block 20 is provided with a tension spring 21, the position of the second external threaded rod 15 corresponds to that of the second internal threaded hole 17, the second external threaded rod 15 rotates at the internal position of the second internal threaded hole 17, the outer ends of the first dumbbell piece mounting rod 7 and the second dumbbell piece mounting rod 8 are fixedly connected with the second internal threaded hole 17 through the second external threaded rod 15, the inner end of the second external threaded rod 15 is slidably mounted at the position of the outer end of the first dumbbell piece mounting rod 7, the inner end of the second external threaded rod 15 and the limit block 20 are elastically connected at the internal position of the second external threaded rod recovery hole 19 through the tension spring 21, when the shape of the equipment needs to be changed, the first external threaded rod 12 rotates in the first internal threaded hole 11, the left handle 1 and the right handle 2 are separated, the left handle 1 and the right handle 2 are reversed, the first dumbbell sheet mounting rod 7 corresponds to the outer end of the second dumbbell sheet mounting rod 8, the second external threaded rod 15 rotates to the inside of the second internal threaded hole 17, in the rotating process, the second external threaded rod 15 in the second external threaded rod recycling hole 19 slides out, so that the second external threaded rod 15 is completely rotated into the inside of the second internal threaded hole 17, the shape change of the device is completed, the left handle 1 and the right handle 2 are held by hand, the left dumbbell sheet 3 and the right dumbbell sheet 4 rotate on the outer surface of the first dumbbell sheet mounting rod 7 or the second dumbbell sheet mounting rod 8 through the bearing 10 to be used as an abdominal muscle wheel, and finally, the second external threaded rod 15 in the second internal threaded hole 17 rotates out, the tension spring 21 contracts, the second external threaded rod 15 slides through the limiting block 20 to be retracted into the second external threaded rod recycling hole 19, the left handle 1 and the right handle 2 are reversed, the first external threaded rod 12 rotates into the first internal threaded hole 11, and the device is recovered to be a dumbbell.

The working principle of the invention is as follows: firstly, the taking-out device adjusts the lengths of a first dumbbell piece mounting rod 7 and a second dumbbell piece mounting rod 8 according to the configuration quantity of the left dumbbell piece 3 and the right dumbbell piece 4, when in adjustment, a first fixing screw 13 is unscrewed, the first dumbbell piece mounting rod 7 slides in the left handle 1, the length of the first dumbbell piece mounting rod 7 is adjusted, a second fixing screw 14 is unscrewed, the second dumbbell piece mounting rod 8 slides in the right handle 2, the length of the second dumbbell piece mounting rod 8 is adjusted, the left dumbbell piece 3 is slidably mounted on the outer surface of the first dumbbell piece mounting rod 7 through a slide block 9, a bulge in the slide block 9 is clamped in the first chute 16, the right dumbbell piece 4 is slidably mounted on the outer surface of the second dumbbell piece mounting rod 8 through the slide block 9, the bulge in the slide block 9 is clamped in the second chute 18, and the left outer lock catch 6 is taken out, rotating the left outer lock catch 6 to the outer end of the first dumbbell sheet mounting rod 7, rotating the left inner lock catch 22 at the inner end of the first dumbbell sheet mounting rod 7, fixing the left dumbbell sheet 3 to the outer surface of the first dumbbell sheet mounting rod 7, taking out the right outer lock catch 5, rotating the right outer lock catch 5 to the outer end of the second dumbbell sheet mounting rod 8, rotating the right inner lock catch 23 at the inner end of the second dumbbell sheet mounting rod 8, fixing the right dumbbell sheet 4 to the outer surface of the second dumbbell sheet mounting rod 8, adjusting the distance of the left dumbbell sheet 3 at the outer end of the left handle 1 through the first dumbbell sheet mounting rod 7 according to the size or using habit of a user's hand, adjusting the distance of the right dumbbell sheet 4 at the outer end of the right handle 2 through the second dumbbell sheet mounting rod 8, rotating the first fixing screw 13, fixing the first dumbbell sheet mounting rod 7 to the inside the left handle 1 through the first fixing screw 13, rotating a second fixing screw 14, fixing a second dumbbell sheet mounting rod 8 into the right handle 2 through the second fixing screw 14 to complete the adjustment of the distance between the left dumbbell sheet 3 and the right dumbbell sheet 4, then starting dumbbell body-building operation, and when the shape of an equipment needs to be changed, rotating a first external threaded rod 12 in a first internal threaded hole 11 to separate the left handle 1 from the right handle 2, reversely rotating the left handle 1 and the right handle 2, wherein the first dumbbell sheet mounting rod 7 corresponds to the outer end of the second dumbbell sheet mounting rod 8, rotating a second external threaded rod 15 into a second internal threaded hole 17, in the rotating process, sliding out the second external threaded rod 15 in a second external threaded rod recycling hole 19 to enable the second external threaded rod 15 to be completely rotated into the second internal threaded hole 17, completing the shape change of the device, holding the left handle 1 and the right handle 2, holding the left dumbbell sheet 3 and the right dumbbell sheet 4 in the first dumbbell sheet mounting rod 7 or the second dumbbell sheet 4 through a bearing 10 The outer surface of the mounting rod 8 rotates to be used as an abdominal muscle wheel, finally, the second external threaded rod 15 in the second internal threaded hole 17 rotates out, the tension spring 21 contracts, the second external threaded rod 15 slides through the limiting block 20 to be retracted into the second external threaded rod recycling hole 19, the left handle 1 and the right handle 2 are reversed, the first external threaded rod 12 rotates into the first internal threaded hole 11, and the dumbbell is recovered to the device.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.