Safe dumbbell rod with anti-loosening structure

Abstract

The utility model relates to the technical field of dumbbells, and discloses a safety dumbbell rod with an anti-loosening structure, which comprises a dumbbell rod main body and locking nuts, the locking nuts are arranged at the two ends of the dumbbell rod main body, springs are arranged on the outer sides of the locking nuts, spring seat sleeves are arranged at the two ends of the springs, and the spring seat sleeves are connected with the dumbbell rod main body. The dumbbell piece is fixed to the dumbbell rod through the locking nut, the spring is arranged on the outer side of the locking nut, the spring is arranged on the outer side of the spring seat sleeve, top plates are arranged on the two sides of the outer wall of the spring seat sleeve on the side away from the locking nut, strip-shaped grooves are formed in the two ends of the dumbbell rod body, and fixing teeth are arranged on the inner walls of the upper side and the lower side of each strip-shaped groove. The locking nut can be pressed all the time, so that the locking nut is prevented from loosening due to vibration; during use, the position of the inserting rod in the strip-shaped groove is adjusted, so that the inserting rod is close to or far away from the locking nut, the compression degree of the spring is adjusted, and the pressure, borne by the locking nut, of the spring is adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to dumbbell technical field, concretely is safe dumbbell pole with anti loosening structure. BACKGROUND

[0002] Dumbbell is a kind of equipment for bodybuilding and strength training, which is mainly composed of two equal-weight spheres or called dumbbell heads and a rod or called handle connecting them. The design of dumbbell enables users to hold the handle with one hand or both hands to perform various lifts, pushes and curls to exercise different parts of the body, such as upper limbs, chest, back and legs, etc.

[0003] The existing Chinese patent (CN206355494U) discloses a dumbbell, which includes a dumbbell rod and two dumbbell heads fixedly connected at both ends of the dumbbell rod. The dumbbell head includes a dumbbell head body, a T-shaped fixed rod and a plurality of weight blocks. The dumbbell head body is a cylindrical cast iron block. One end face of the dumbbell head body is fixedly connected with the dumbbell rod, and the other end face of the dumbbell head is provided with a threaded blind hole at the center. The vertical section of the T-shaped fixed rod is cylindrical and provided with threads on the surface matching the blind hole. The horizontal section of the T-shaped fixed rod is a quadrangular prism. The weight block is provided with a strip-shaped through hole at the center matching the horizontal section of the T-shaped fixed rod. The utility model has simple structure, realizes quick replacement of dumbbell weight, and enables users to adjust dumbbell weight more quickly, so that users can better adjust their suitable weight during exercise.

[0004] The existing dumbbell design usually uses nuts to fasten the dumbbell plates on the dumbbell rod. This fixing method meets the basic exercise needs to a certain extent. However, in actual use, as the exercise progresses and the dumbbell is frequently lifted and put down, the nuts are easily loosened by vibration and external force. This loosening phenomenon not only affects the user's experience, but also may cause the dumbbell plates to accidentally fall off during exercise, thereby causing safety hazards. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a safe dumbbell rod with anti-loosening structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides following technical scheme: safe dumbbell rod with anti loosening structure, include: dumbbell rod main part and locking nut, the both ends of dumbbell rod main part are equipped with locking nut, the outside of locking nut is equipped with spring, the both ends of spring are equipped with spring seat cover, the both sides of spring seat cover outer wall of the side far from locking nut is equipped with top plate, the both ends of dumbbell rod main part are internally provided with strip groove, the inner wall of the both sides of strip groove is equipped with fixed tooth, the between fixed tooth is equipped with plug rod, the one end of plug rod is equipped with top rod, the other end is equipped with fixed plate, the top rod is opposite with one of top plate, the fixed plate is opposite with another top plate.

[0007] Further, the fixed tooth has a plurality of fixed teeth, and the plurality of fixed teeth are evenly arranged at equal intervals on the strip groove, and the upper and lower sides of the plug rod are provided with fixed insertion strips matched with the gaps between the fixed teeth.

[0008] Further, the fixed plate and the plug rod are provided with an elastic rubber pad therebetween, and the fixed plate is provided with a handle on one side.

[0009] Further, the one end of the plug rod close to the one end of the top rod is provided with a rotating rod, and the one side of the rotating rod can abut against the outer wall of the one end of the fixed tooth.

[0010] Further, the diameter of the fixed plate is greater than the width of the strip groove.

[0011] Further, the spring is in a compressed state between the spring seat covers.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model discloses a spring, a strip groove and a plug rod are arranged, when the dumbbell rod is used, the dumbbell piece is fixed on the dumbbell rod through the locking nut, the spring is arranged on the outside of the locking nut, the locking nut can be always pressed through the compression of the spring, and the locking nut is prevented from being loosened by vibration;

[0014] When in use, the position of the plug rod in the strip groove is adjusted, so that the plug rod is close to or away from the locking nut, thereby adjusting the compression degree of the spring, and adjusting the pressure of the spring received by the locking nut, when the plug rod is adjusted, the spring seat cover on one side is pressed, so that the top rod and the fixed plate are separated from the top plate, the rotating rod is rotated to the extension gap of the strip groove, then the plug rod is manually taken out through the handle, after adjusting the position of the plug rod, the plug rod is inserted between the fixed teeth again, the fixed insertion strips on the upper and lower sides of the plug rod are contacted with the fixed teeth, so that the plug rod is fixed, the top plate is reconnected with the top rod and the fixed plate through the release of the spring seat cover, then the rotating rod is rotated, so that the rotating rod is abutted against the one end of the fixed tooth, the positioning of the spring seat cover is realized, and the compression degree of the spring is adjusted.

[0015] The parts not involved in the device are the same as or can be implemented by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the safety dumbbell rod with the anti-loosening structure of the utility model;

[0017] Figure 2 It is a perspective view of the safety dumbbell rod with the anti-loosening structure of the utility model; Figure 1 It is an enlarged structural schematic view of position A in the middle;

[0018] Figure 3 It is a perspective view of the safety dumbbell rod with the anti-loosening structure of the utility model from another angle;

[0019] Figure 4 It is a perspective view of the safety dumbbell rod with the anti-loosening structure of the utility model; Figure 3 It is an enlarged structural schematic view of position B in the middle;

[0020] Figure 5 It is a main sectional view of the safety dumbbell rod with the anti-loosening structure of the utility model.

[0021] In the figure: 1, dumbbell rod main body; 2, locking nut; 3, spring seat sleeve; 4, spring; 5, strip-shaped groove; 6, fixed tooth; 7, insertion rod; 8, rotating rod; 9, top rod; 10, top plate; 11, handle; 12, fixed plate; 13, elastic rubber pad. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] Please refer to Figures 1-5 The utility model provides a technical scheme: safety dumbbell rod with anti-loosening structure, include: dumbbell rod main body 1 and locking nut 2, the both ends of dumbbell rod main body 1 are equipped with locking nut 2, locking nut outside is equipped with spring 4, the both ends of spring 4 are equipped with spring seat sleeve 3, the both sides of spring seat sleeve 3 outer wall far from locking nut 2 one side are equipped with top plate 10, the both ends inside of dumbbell rod main body 1 are equipped with strip-shaped groove 5, the both sides inner wall of strip-shaped groove 5 are equipped with fixed tooth 6, the fixed tooth 6 between are equipped with insertion rod 7, insertion rod 7 one end is equipped with top rod 9, the other end is equipped with fixed plate 12, top rod 9 with one of top plate 10 is in abutment, fixed plate 12 with another top plate 10 is in abutment. When dumbbell rod is used, through locking nut 2, dumbbell piece is fixed on dumbbell rod, locking nut 2 outside is provided with spring 4, through the compression of spring 4, locking nut 2 can be always under pressure, avoid locking nut 2 to be loosened by vibration.

[0024] The fixed teeth 6 are in plurality, and the plurality of fixed teeth 6 are arranged equidistantly and uniformly on the strip-shaped slot 5, and the insertion rod 7 is provided with fixed insertion strips on the upper and lower sides and matched with the gaps of the fixed teeth 6. By adjusting the position of the insertion rod 7 in the strip-shaped slot 5, the insertion rod 7 is close to or away from the locking nut 2, so as to adjust the compression degree of the spring 4, and then the pressure of the spring 4 received by the locking nut 2 is adjusted.

[0025] The elastic rubber pad 13 is arranged between the fixed plate 12 and the insertion rod 7, and the fixed plate 12 is provided with the handle 11 on one side of the center. The elastic rubber pad 13 can slightly adjust the insertion depth of the insertion rod 7, and when the insertion rod 7 is inserted, the one end of the insertion rod 7 can protrude from the strip-shaped slot 5, so as to facilitate the rotation of the rotating rod 8. After the insertion rod 7 is loosened, the two ends of the insertion rod 7 are flush with the two sides of the strip-shaped slot 5 under the elastic action of the elastic rubber pad 13. At this time, the rotating rod 8 is in abutment with one end of the fixed tooth 6, and it is inconvenient to rotate.

[0026] The rotating rod 8 is arranged on one end of the insertion rod 7 close to one end of the top rod 9. By rotating the rotating rod 8, the rotating rod 8 is separated from or in abutment with the fixed tooth 6, so as to avoid that the insertion rod 7 is pulled out at will. One side of the rotating rod 8 can be in abutment with the outer wall of one end of the fixed tooth 6. The diameter of the fixed plate 12 is greater than the width of the strip-shaped slot 5. The insertion end of the insertion rod 7 is positioned by the fixed plate 12.

[0027] The spring 4 is in a compressed state between the spring seat sleeves 3. When the dumbbell rod is used, the dumbbell piece is fixed on the dumbbell rod by the locking nut 2. The spring 4 is arranged outside the locking nut 2. By the compression of the spring 4, the locking nut 2 can be always under pressure, so as to avoid that the locking nut 2 is loosened by vibration.

[0028] In use, by adjusting the position of the insertion rod 7 in the strip-shaped slot 5, the insertion rod 7 is close to or away from the locking nut 2, so as to adjust the compression degree of the spring 4, and then the pressure of the spring 4 received by the locking nut 2 is adjusted. When the insertion rod 7 is adjusted, the top rod 9 and the fixed plate 12 are separated from the top plate 1 by pressing the spring seat sleeve 3 on one side. The rotating rod 8 is rotated to the extending gap of the strip-shaped slot 5, and then the insertion rod 7 is manually pulled out by the handle 11. After the position of the insertion rod 7 is adjusted, the insertion rod 7 is inserted between the fixed teeth 6 again. The insertion rod 7 is fixed by the contact of the fixed insertion strips on the upper and lower sides of the insertion rod 7 and the fixed teeth 6. At this time, the spring seat sleeve 3 is loosened, so that the top plate 10 is in abutment with the top rod 9 and the fixed plate 12 again. Then the rotating rod 8 is rotated to be in abutment with one end of the fixed tooth 6, so as to position the spring seat sleeve 3, and then the compression degree of the spring 4 is adjusted.

[0029] Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection range of the utility model.

Claims

1. A safety dumbbell bar with anti-loosening structure, comprising: Dumbbell rod body (1) and locking nut (2), characterized in that: the dumbbell rod body (1) both ends are provided with locking nut (2), the locking nut outside is equipped with spring (4), the spring (4) both ends are equipped with spring seat cover (3), the spring seat cover (3) outer wall both sides of the side away from the locking nut (2) is equipped with top plate (10), the dumbbell rod body (1) both ends are internally provided with strip-shaped groove (5), the strip-shaped groove (5) upper and lower side inner wall is equipped with fixed tooth (6), the fixed tooth (6) between being equipped with plug rod (7), the plug rod (7) one end is equipped with top rod (9), the other end is equipped with fixed plate (12), the top rod (9) with one of the top plate (10) abuts, the fixed plate (12) with another top plate (10) abuts.

2. The safety dumbbell bar with anti-loosening structure according to claim 1, characterized in that: There are multiple fixed teeth (6), multiple fixed teeth (6) are evenly arranged on the strip-shaped groove (5) at equal intervals, and the upper and lower sides of the plug rod (7) are provided with fixed insertion strips matched with the fixed teeth (6).

3. The safety dumbbell bar with anti-loosening structure according to claim 1, characterized in that: The fixed plate (12) and the plug rod (7) are provided with an elastic rubber pad (13) therebetween, and the fixed plate (12) is provided with a handle (11) on one side.

4. The safety dumbbell bar with anti-loosening structure according to claim 1, characterized in that: The end of the plug rod (7) close to the end of the top rod (9) is provided with a rotating rod (8), and one side of the rotating rod (8) can abut the outer wall of one end of the fixed tooth (6).

5. The safety dumbbell bar with anti-loosening structure according to claim 1, characterized in that: The diameter of the fixed plate (12) is greater than the width of the strip-shaped groove (5).

6. The safety dumbbell bar with anti-loosening structure according to claim 1, characterized in that: The spring (4) is in a compressed state between the spring seat covers (3).

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