Dumbbell capable of adjusting weight in multiple gears

Abstract

The utility model discloses a dumbbell capable of adjusting weight in multiple gears, which comprises a dumbbell rod assembly, a plurality of weight stacks and a base used for placing the weight stacks and the dumbbell rod assembly, the dumbbell rod assembly comprises a rotation adjusting structure and dumbbell supports arranged at two ends of the rotation adjusting structure, and each dumbbell support comprises a tail end support, a weight stack frame and an adjusting frame. The rotation adjusting structure comprises a handle pipe, a guide shaft, a sliding bolt body A and a sliding bolt body B. According to the dumbbell, the sliding bolt bodies A, the sliding bolt bodies B, the weight stacks A, the weight stacks B, the weight stack A insertion positions and the weight stack B insertion positions are arranged, so that the weight stack B and the weight stacks A are respectively combined to form multi-gear weight adjustment, and the number of adjustable gears is doubled compared with that of an existing dumbbell.

Description

Technical Field

[0001] The utility model relates to the technical field of sports equipment, in particular to a dumbbell with multi-level weight adjustment. Background Art

[0002] There are two main types of dumbbells in the prior art: one is a fixed-weight dumbbell, and the other is an adjustable-weight dumbbell. When using the former, a set of dumbbells of different weights must be prepared to meet the needs of the trainee. The latter is popular among sports trainees because its weight can be adjusted.

[0003] Chinese patent publication number CN104162249A, published on November 26, 2014, discloses a weight-adjustable dumbbell, which is mainly composed of a dumbbell bar assembly, a plurality of weight plates, and a base for placing the weight plates and dumbbell bar assembly; the dumbbell bar assembly mainly includes a handle tube, two weight plate locators mounted at both ends of the handle tube, and a weight adjustment device mounted on the weight plate locators; the dumbbell bar assembly also includes a steel shaft mounted in a through slot in the handle, and weight adjustment devices are provided on the weight plate locators at both ends.

[0004] When using this type of dumbbell, the weight plate is placed on the base, the dumbbell bar assembly is placed on the base, the handle tube is adjusted, the adjustment sliding bolt is gradually rotated out, and the weight plate with adjusted weight is clamped on the weight plate positioning piece to complete the weight adjustment.

[0005] However, the weight plates of existing dumbbells all have the same size of holes, and are only installed by moving a single sliding bolt. The number of weight adjustment levels of such dumbbells is limited only by the weight plates of the dumbbells. The number of adjustment levels is limited to the number of weight plates that can be installed, and the number of adjustable levels is small. Utility Model Content

[0006] In order to solve the above technical problems, the utility model designs a dumbbell with multi-level adjustable weight.

[0007] The utility model adopts the following technical solutions:

[0008] A dumbbell with multi-level weight adjustment includes a dumbbell bar assembly, a plurality of weight plates, and a base for placing the weight plates and dumbbell bar assembly. The dumbbell bar assembly includes a rotation adjustment structure and dumbbell brackets provided at both ends of the rotation adjustment structure. The dumbbell brackets include a tail bracket, a weight plate bracket, and an adjustment bracket. The rotation adjustment structure includes a handle tube, a guide shaft, a sliding bolt body A, and a sliding bolt body B.

[0009] The weight plate rack is provided with a plurality of weight plate A insertion positions and a weight plate B insertion position provided inside the weight plate A insertion position, a tail end bracket is provided at the outer end of the weight plate rack, an adjustment bracket is provided at the inner end of the weight plate rack, a limit slot is provided at the center of the weight plate rack, and the guide shaft passes through the handle tube, the limit slots in the center of the weight plate racks at both ends, the adjustment bracket, and is fixedly connected to the tail end brackets at both ends;

[0010] The outer sides of both sides of the guide shaft are respectively sleeved with sliding bolt bodies A, which are located between the handle tube and the guide shaft. The sliding bolt body A is provided with an intermittent pushing track arranged along the circumference, and a convex block is correspondingly provided on the inner side of the handle tube. The handle tube is rotated to drive the convex block to rotate, so that the convex block passes through the intermittent pushing track, and drives the sliding bolt body A to move horizontally and intermittently along the guide shaft. At the same time, sliding bolt bodies B are respectively sleeved on both ends of the handle tube, and a reciprocating pushing track arranged along the circumference is provided on the sliding bolt body B. The two ends of the handle tube are correspondingly provided with convex points. The handle tube is rotated to drive the convex points to rotate, so that the convex points pass through the reciprocating pushing track, and drive the sliding bolt body B to move reciprocally along the guide shaft. The trajectories of the compound pushing track and the intermittent pushing track are set, so that when the sliding bolt body A moves horizontally outward, the sliding bolt body B moves inward, and when the sliding bolt body A moves intermittently, the sliding bolt body B moves outward;

[0011] The base is correspondingly provided with a locating slot for the counterweight plate A, a locating slot for the tail bracket, a locating slot for the counterweight plate B and a locating slot for the adjustment frame. The locating slot for the counterweight plate A is placed on the locating slot for the counterweight plate B, and the locating slot for the counterweight plate B is placed on the locating slot for the counterweight plate B. The counterweight plate A is correspondingly provided with a slot A and a card hole A, and the counterweight plate B is correspondingly provided with a slot B and a card hole B. The entrance width L2 of the slot B is greater than the diameter D1 of the card hole A. The diameter of the card hole A is matched with the outer diameter of the sliding bolt body A, and the diameter of the card hole B is matched with the outer diameter of the sliding bolt body B.

[0012] Preferably, self-locking notches are provided between the ends of the handle tube and the adjustment frame, and self-locking springs and self-locking blocks are installed in the self-locking notches. When the self-locking blocks are not pressed, the self-locking blocks lock the adjustment frame and the handle tube. At this time, the handle tube cannot be rotated for adjustment.

[0013] Preferably, an unlocking block is provided in the positioning groove of the adjustment frame on the base corresponding to the self-locking block. When the dumbbell bar assembly is placed on the base, the unlocking block presses the self-locking block to unlock the adjustment frame and the handle tube.

[0014] Preferably, an unlocking block is provided in the positioning groove of the adjustment frame on the base corresponding to the self-locking block.

[0015] Preferably, counterweight adjustment digital dials are fixedly connected to both ends of the handle tube.

[0016] Preferably, an anti-slip portion is provided on the outside of the handle tube.

[0017] Preferably, the tail end bracket is composed of an outer sleeve and a metal sheet, the metal sheet is filled in the outer sleeve, and the outer sleeve is fixedly connected to both ends of the guide shaft by bolts.

[0018] Preferably, the adjustment frame comprises a shell and a metal sheet, and the shell is filled with the metal sheet.

[0019] Preferably, the metal sheets are fixed to both sides of the weight plate frame by bolts.

[0020] Preferably, the sliding bolt body A is provided with a guide block, which moves horizontally along the limiting slots correspondingly provided on the counterweight plate racks at both ends.

[0021] Preferably, the sliding bolt body B is provided with a limit guide bar, which moves horizontally along the limit slots correspondingly provided on the counterweight racks at both ends.

[0022] The beneficial effects of the present invention are as follows: the present invention realizes that the weight plate B is combined with multiple weight plates A to form multi-level weight adjustment by arranging the sliding bolt body A, the sliding bolt body B, the counterweight plate A, the counterweight plate B, the counterweight plate A insertion position, and the counterweight plate B insertion position, and the number of adjustable levels is doubled compared to the existing dumbbells. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 This is a structural diagram of the base in the utility model;

[0025] Figure 3 This is a structural diagram of the weight plate A in the present utility model;

[0026] Figure 4 This is a structural diagram of the weight plate B in the present utility model;

[0027] Figure 5 It is a stereoscopic view of the dumbbell bar assembly in the utility model;

[0028] Figure 6 This is a top view of the dumbbell bar assembly of the present invention;

[0029] Figure 7 yes Figure 6 A cross-sectional view in the AA direction;

[0030] Figure 8 It is a stereoscopic diagram of the rotation adjustment structure in the utility model;

[0031] Figure 9 This is a top view of the rotation adjustment structure in the utility model;

[0032] Figure 10 yes Figure 9 A cross-sectional view in the middle BB direction;

[0033] Figure 11 This is a structural diagram of the sliding bolt body A in the present utility model;

[0034] Figure 12 This is a structural diagram of the sliding bolt body B in the present utility model;

[0035] In the figure: 1. Dumbbell bar assembly, 2. Counterweight plate A, 3. Base, 4. Counterweight plate B, 5. Positioning slot of counterweight plate A, 6. Unlocking block, 7. Positioning slot of tail bracket, 8. Positioning slot of counterweight plate B, 9. Positioning slot of adjustment frame, 10. Slot A, 11. Clamping hole A, 12. Clamping hole B, 13. Slot B, 14. Tail bracket, 15. Counterweight plate frame, 16. Adjustment frame, 17. Handle tube, 18. Counterweight adjustment digital dial, 19. Counterweight plate A plug-in position, 20. Counterweight plate B plug-in position, 21. Guide shaft, 22. Sliding bolt body A, 23. Sliding bolt body B, 24. Anti-slip part, 25. Self-locking block, 26. Self-locking spring, 27. Intermittent push track, 28. Guide block, 29. Reciprocating push track, 30. Limiting guide strip. DETAILED DESCRIPTION

[0036] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0037] Example: Figures 1-12 As shown, a dumbbell with multi-level adjustable weight includes a dumbbell bar assembly 1, a plurality of weight plates and a base 3 for placing the weight plates and the dumbbell bar assembly.

[0038] The dumbbell bar assembly includes a rotation adjustment structure and dumbbell brackets provided at both ends of the rotation adjustment structure. The dumbbell brackets include a tail bracket 14, a weight plate rack 15, and an adjustment rack 16. The rotation adjustment structure includes a handle tube 17, a guide shaft 21, a sliding bolt body A22, and a sliding bolt body B23.

[0039] The weight plate rack is provided with a plurality of weight plate A insertion positions 19 and a weight plate B insertion position 20 provided inside the weight plate A insertion position, a tail end bracket is provided at the outer end of the weight plate rack, an adjustment bracket is provided at the inner end of the weight plate rack, a limit slot is provided at the center of the weight plate rack, and the guide shaft passes through the handle tube, the limit slots in the center of the weight plate racks at both ends, the adjustment bracket, and is fixedly connected to the tail end brackets at both ends;

[0040] The outer sides of both sides of the guide shaft are respectively sleeved with sliding bolt bodies A, and the sliding bolt body A is located between the handle tube and the guide shaft. The sliding bolt body A is provided with an intermittent pushing track 27 arranged along the circumference, and a corresponding protrusion is provided on the inner side of the handle tube. The rotating handle tube drives the protrusion to rotate, so that the protrusion passes through the intermittent pushing track, driving the sliding bolt body A to move horizontally and intermittently along the guide shaft. At the same time, sliding bolt bodies B are respectively sleeved on both ends of the handle tube, and the sliding bolt body B is provided with a reciprocating pushing track 29 arranged along the circumference. The two ends of the handle tube are correspondingly provided with protrusions. The rotating handle tube drives the protrusion to rotate, so that the protrusion passes through the reciprocating pushing track, driving the sliding bolt body B to move reciprocally along the guide shaft. The tracks of the compound pushing track and the intermittent pushing track are set, so that when the sliding bolt body A moves horizontally outward, the sliding bolt body B moves inward, and when the sliding bolt body A moves intermittently, the sliding bolt body B moves outward;

[0041] The base is correspondingly provided with a counterweight plate A positioning slot 5, a tail bracket positioning slot 7, a counterweight plate B positioning slot 8 and an adjustment frame positioning slot 9. The counterweight plate A positioning slot is provided with a counterweight plate A2, and the counterweight plate B positioning slot is provided with a counterweight plate B4. The counterweight plate A is correspondingly provided with a slot A10 and a card hole A11, and the counterweight plate B is correspondingly provided with a slot B13 and a card hole B12. The entrance width L2 of the slot B is greater than the diameter D1 of the card hole A. The diameter of the card hole A is matched with the outer diameter of the sliding bolt body A, and the diameter of the card hole B is matched with the outer diameter of the sliding bolt body B.

[0042] Self-locking notches are provided at both ends of the handle tube and between the adjustment frame. Self-locking springs 26 and self-locking blocks 25 are installed in the self-locking notches. When the self-locking blocks are not pressed, the self-locking blocks lock the adjustment frame and the handle tube. At this time, the handle tube cannot be rotated for adjustment.

[0043] The corresponding self-locking block in the positioning groove of the adjustment frame on the base is provided with an unlocking block 6. When the dumbbell bar assembly is placed on the base, the unlocking block is directed to compressing the self-locking block, unlocking the adjustment frame and the handle pipe.

[0044] An unlocking block is provided in the positioning groove of the adjustment frame on the base corresponding to the self-locking block. A counterweight adjustment digital disk 18 is fixedly connected to both ends of the handle tube. An anti-slip portion 24 is provided outside the handle tube.

[0045] The tail end bracket consists of an outer jacket and a metal sheet. The metal sheet is filled in the outer jacket, and the outer jacket is fixedly connected to both ends of the guide shaft by bolts.

[0046] The adjustment frame consists of a housing and sheet metal, with the housing filled with sheet metal. The sheet metal is bolted to either side of the counterweight rack. Sliding bolt body A is equipped with guide blocks 28, which move horizontally along corresponding limit slots in the counterweight racks at both ends. Sliding bolt body B is equipped with limit guide strips 30, which move horizontally along corresponding limit slots in the counterweight racks at both ends.

[0047] When the utility model is used, the dumbbell bar assembly and several weight plates are placed on the base, and the unlocking block is pressed against the self-locking block to unlock the adjustment frame and the handle tube. The handle tube can be rotated to adjust the weight of the dumbbell in ten gears. The ten gears are as follows: the dumbbell bar assembly with 0 weight plates on one side is the first gear, and the lightest is displayed as 6 kg; 1 weight plate B at each end + dumbbell bar assembly is the second gear, which is displayed as 7 kg; 1 weight plate A at each end + dumbbell bar assembly is the third gear, which is displayed as 8 kg; 1 weight plate A at each end + 1 weight plate B + dumbbell bar assembly is the fourth gear, which is displayed as 9 kg; 2 weight plates A at each end + dumbbell bar assembly is the fifth gear, which is displayed as 10 kg; 2 weight plates A at each end + 1 weight plate B + dumbbell bar assembly is the sixth gear, which is displayed as 11 kg; 3 weight plates A at each end + dumbbell bar assembly becomes the seventh gear, displayed as 12 kg; 3 weight plates A at each end + 1 weight plate B + dumbbell bar assembly becomes the eighth gear, displayed as 13 kg; 4 weight plates A at each end + dumbbell bar assembly becomes the fourth gear, displayed as 14 kg; 4 weight plates A at each end + 1 weight plate B + dumbbell bar assembly becomes the tenth gear, displayed as 15 kg.

[0048] The embodiment described above is only a preferred solution of the present invention and does not limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A dumbbell with multi-level weight adjustment, comprising a dumbbell bar assembly, a plurality of weight plates, and a base for placing the weight plates and dumbbell bar assembly, wherein the dumbbell bar assembly comprises a rotation adjustment structure and dumbbell brackets provided at both ends of the rotation adjustment structure, wherein the dumbbell brackets comprise a tail bracket, a weight plate rack, and an adjustment rack, wherein: The rotation adjustment structure includes a handle tube, a guide shaft, a sliding bolt body A and a sliding bolt body B; The weight plate rack is provided with a plurality of weight plate A insertion positions and a weight plate B insertion position provided inside the weight plate A insertion position, a tail end bracket is provided at the outer end of the weight plate rack, an adjustment bracket is provided at the inner end of the weight plate rack, a limit slot is provided at the center of the weight plate rack, and the guide shaft passes through the handle tube, the limit slots in the center of the weight plate racks at both ends, the adjustment bracket, and is fixedly connected to the tail end brackets at both ends; The outer sides of both sides of the guide shaft are respectively sleeved with sliding bolt bodies A, which are located between the handle tube and the guide shaft. The sliding bolt body A is provided with an intermittent pushing track arranged along the circumference, and a convex block is correspondingly provided on the inner side of the handle tube. The handle tube is rotated to drive the convex block to rotate, so that the convex block passes through the intermittent pushing track, and drives the sliding bolt body A to move horizontally and intermittently along the guide shaft. At the same time, sliding bolt bodies B are respectively sleeved on both ends of the handle tube, and a reciprocating pushing track arranged along the circumference is provided on the sliding bolt body B. The two ends of the handle tube are correspondingly provided with convex points. The handle tube is rotated to drive the convex points to rotate, so that the convex points pass through the reciprocating pushing track, and drive the sliding bolt body B to move reciprocally along the guide shaft. The trajectories of the compound pushing track and the intermittent pushing track are set, so that when the sliding bolt body A moves horizontally outward, the sliding bolt body B moves inward, and when the sliding bolt body A moves intermittently, the sliding bolt body B moves outward; The base is correspondingly provided with a locating slot for the counterweight plate A, a locating slot for the tail bracket, a locating slot for the counterweight plate B and a locating slot for the adjustment frame. The locating slot for the counterweight plate A is placed on the locating slot for the counterweight plate B, and the locating slot for the counterweight plate B is placed on the locating slot for the counterweight plate B. The counterweight plate A is correspondingly provided with a slot A and a card hole A, and the counterweight plate B is correspondingly provided with a slot B and a card hole B. The entrance width L2 of the slot B is greater than the diameter D1 of the card hole A. The diameter of the card hole A is matched with the outer diameter of the sliding bolt body A, and the diameter of the card hole B is matched with the outer diameter of the sliding bolt body B.

2. The dumbbell with multi-level weight adjustment according to claim 1, characterized in that: Self-locking notches are respectively provided between the two ends of the handle tube and the adjustment frame, and self-locking springs and self-locking blocks are installed in the self-locking notches. When the self-locking blocks are not pressed, the self-locking blocks lock the adjustment frame and the handle tube.

3. The dumbbell with multi-level weight adjustment according to claim 2, characterized in that: An unlocking block is provided in the positioning groove of the adjustment frame on the base corresponding to the self-locking block.

4. The dumbbell with multi-level weight adjustment according to claim 1, characterized in that: Both ends of the handle tube are fixedly connected with counterweight adjustment digital dials.

5. The dumbbell with multi-level weight adjustment according to claim 1, characterized in that: An anti-slip portion is provided outside the handle tube.

6. The dumbbell with multi-level weight adjustment according to claim 1, characterized in that: The tail end bracket is composed of an outer sleeve and a metal sheet. The metal sheet is filled in the outer sleeve, and the outer sleeve is fixedly connected to both ends of the guide shaft by bolts.

7. The dumbbell with multi-level weight adjustment according to claim 6, characterized in that: The adjustment frame comprises a shell and metal sheets, and the shell is filled with the metal sheets.

8. The dumbbell with multi-level weight adjustment according to claim 7, characterized in that: The metal sheets are fixed to both sides of the weight plate frame by bolts.

9. The dumbbell with multi-level weight adjustment according to claim 1, characterized in that: The sliding bolt body A is provided with a guide block, which moves horizontally along the limiting notches correspondingly provided on the counterweight plate racks at both ends.

10. The dumbbell with multi-level weight adjustment according to claim 1, characterized in that: The sliding bolt body B is provided with a limit guide bar, which moves horizontally along the limit slots correspondingly provided on the counterweight plate racks at both ends.

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