Rotary adjustable dumbbell

Abstract

A radial groove and a radial protrusion are correspondingly arranged on the left side and the right side of a dumbbell piece, more than two groove end axial blocking plates are evenly distributed on the outer end face of the radial groove, and inner inserting grooves are formed in the inner sides of the groove end axial blocking plates. More than two bulge end axial barrier plates are uniformly distributed on the outer end surface of the radial bulge; an outer inserting groove is formed in the inner side of each bulge end axial barrier plate; combination is achieved by inserting and screwing the radial grooves and the radial protrusions, and radial loosening after combination of the radial grooves and the radial protrusions can be effectively avoided on the premise that no external force is applied. Guide grooves are formed in the outer diameter positions of the dumbbell pieces and the inner side end plates, lock knob switches are arranged in the guide grooves, inserting gaps and inserting protrusions are arranged on the lower portions of the lock knob switches, guide plates and guide grooves are arranged in the dumbbell pieces in cooperation with the lock knob switches, the guide plates are matched with the inserting gaps in an inserting mode, and the guide grooves are matched with the inserting protrusions in an inserting mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of sports equipment, and in particular relates to a rotatable and adjustable dumbbell. Background Art

[0002] Among the existing fitness equipment, dumbbells are the most commonly used equipment for arm training. To adjust the weight of dumbbells, the usual method is to increase or decrease the dumbbell plates by a detachable adjustment method. Currently, the more common method is to replace the dumbbell plates by plugging or screwing.

[0003] When users use the threaded suspension method to add or remove dumbbell plates, the disadvantages are: low operating efficiency, and the dumbbell plates after suspension are easy to loosen during continuous use or shaking, which poses a safety hazard. The loosened dumbbell plates will shake as a whole, affecting the user experience.

[0004] When the user uses the plug-in method to add or remove dumbbell plates, the disadvantage is that the plug-in structure is axially arranged. When the dumbbell plates are arranged in a circular shape, if the dumbbells are not placed on a fixed storage device during use, the dumbbells will roll on the ground or platform. When they roll to the point where the switch is vertically facing downward, if the switch is loose or not locked firmly, the dumbbell plates may become loose. This structure can refer to the utility model patent with patent application number 2022205212694; furthermore, the locking structure of this dumbbell structure adopts an axial transverse lock, which realizes the locking function by combining vertical constraint with transverse spring constraint. In actual operation, the lock structure of this structure is prone to shaking, which affects the locking effect and user experience.

[0005] In response to the above-mentioned drawbacks, technical developers in this field, based on market feedback, believe that it is very necessary to make structural adjustments based on the existing detachable and adjustable dumbbells, and to improve the combination structure of the dumbbell plates and the guide structure of the lock, so as to scale or solve such technical problems encountered in the prior art. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this patent application discloses a rotatable adjustable dumbbell, which adopts a dumbbell plate suspension and plug-in structure and a lock buckle lateral guide constraint structure to effectively improve the stability, operating comfort and safety of the dumbbell after assembly.

[0007] In order to achieve the above technical purpose, the utility model adopts the following specific scheme: a rotatable adjustable dumbbell, which includes a handle, and inner end plates are fixed on both sides of the handle; a plurality of dumbbell plates are arranged on the outside of the inner end plate; radial grooves and radial protrusions are correspondingly arranged on the left and right sides of the dumbbell plates, and more than two groove end axial blocking plates are evenly arranged on the outer end surface of the radial groove, and an inner plug-in groove is arranged on the inner side of the groove end axial blocking plate, and an inner radial baffle is arranged at the end of the inner plug-in groove; more than two protrusion end axial blocking plates are evenly arranged on the outer end surface of the radial protrusion, and an outer plug-in groove is arranged on the inner side of the protrusion end axial blocking plate, and an outer radial baffle is arranged at the end of the outer plug-in groove; radial grooves or radial protrusions are arranged on the inner end plate facing the dumbbell plates;

[0008] The outer diameters of the dumbbell piece and the inner end plate are both provided with grooves for restricting the axial movement of the lock button switch, and the lock button switch is arranged in the groove. The lower part of the lock button switch is provided with a plug-in gap and a plug-in protrusion. A guide plate and an inner guide groove are provided inside the dumbbell piece to match the lock button switch. The guide plate is plug-fitted with the plug-in gap, and the inner guide groove is plug-fitted with the plug-in protrusion. An axial elastic component is provided between the lock button switch and the dumbbell piece.

[0009] The groove end axial blocking plate and the inner radial blocking plate are both set with gradual thickness, and gradually become thicker from the radial end to the radial inside of the plate body.

[0010] A screwing mark is provided on the radial groove and the radial protrusion or on one of the two, and the screwing mark is used to guide the operator to screw and lock.

[0011] Spring fixing parts are correspondingly arranged inside the dumbbell plate and on the lock button switch. The spring fixing parts are protrusions or grooves, and the elastic component is fixed by opposite matching.

[0012] The inner guide groove is composed of two side plates arranged opposite to each other, and the gap between the plug-in protrusion and the two side plates realizes plug-in guidance.

[0013] The beneficial effects of the utility model are as follows: the utility model discloses a rotatable adjustable dumbbell, which is correspondingly provided with radial grooves and radial protrusions on the left and right sides of the dumbbell plate, and more than two groove end axial blocking plates are evenly arranged on the outer end surface of the radial groove, and the inner side of the groove end axial blocking plate is provided with an inner plug-in groove; more than two protrusion end axial blocking plates are evenly arranged on the outer end surface of the radial protrusion, and the inner side of the protrusion end axial blocking plate is provided with an outer plug-in groove; the combination is achieved by plugging and screwing the radial groove and the radial protrusion, and the radial loosening after the combination of the two can be effectively avoided without external force; the outer diameters of the dumbbell plate and the inner end plate are both provided with guide grooves, and a lock button switch is provided in the guide groove, and a plug-in gap and a plug-in protrusion are provided at the lower part of the lock button switch, and a guide plate and a guide groove are provided inside the dumbbell plate to cooperate with the lock button switch, the guide plate is plug-in matched with the plug-in gap, and the guide groove is plug-in matched with the plug-in protrusion, and the above structure can make the lock button switch axially move to achieve locking without shaking and more stable, and has a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional split structure of the utility model;

[0016] Figure 3 Schematic diagram of the three-dimensional structure of the radial groove on the dumbbell plate

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of one side of the radial protrusion on the dumbbell plate;

[0018] Figure 5 It is a schematic diagram of the combined structure of the lock button switch;

[0019] In the accompanying drawings, 1, handle, 2, inner end plate, 21, inner end plate locking groove, 3, dumbbell plate, 31, outer guide groove, 32, guide plate, 33, side plate, 34, inner spring fixing part, 4, screw mark, 5, lock button switch, 50, force surface groove, 51, vertical connecting part, 52, plug-in protrusion, 53, plug-in gap, 54, outer spring fixing part, 6, radial groove, 61, groove end axial blocking plate, 62, inner radial baffle, 63, inner plug-in groove, 7, radial protrusion, 71, protrusion end axial blocking plate, 72, outer radial baffle, 73, outer plug-in groove. DETAILED DESCRIPTION

[0020] The present invention is described in detail below through specific embodiments, but it should be pointed out that the following specific implementation methods do not impose technical limitations on the present technical solution, and those skilled in the art can make further technical extensions under the guidance of the following technical solution.

[0021] A rotatable and adjustable dumbbell, as shown in the accompanying drawings, comprises a handle 1 having the same structural design as the prior art. Inner end plates 2 are fixed on both sides of the handle 1. The inner end plates and the handle 1 are integrated or plug-in combined, and can also be a pasted or threaded suspension structure. In this embodiment, the specific structural description of the prior art is not given, and those skilled in the art can perform self-configuration and assembly of the structure under the guidance of the above specification.

[0022] A plurality of dumbbell plates 3 are arranged on the outside of the inner end plate 2; radial grooves 6 and radial protrusions 7 are correspondingly arranged on the left and right sides of the dumbbell plates 3. The correspondence mentioned here means that the two are coaxially arranged or their arrangement positions are symmetrical on the left and right, and the radial grooves 6 and radial protrusions 7 on multiple dumbbell plates 3 can be combined with each other in a serial manner during assembly.

[0023] like Figure 2 , 3 As shown, three groove end axial blocking plates 61 are evenly distributed on the outer end surface of the radial groove 6, an inner plug-in groove 63 is arranged on the inner side of the groove end axial blocking plate 61, and an inner radial baffle 62 is arranged on the end of the inner plug-in groove 63. This structure can form an inner plug-in groove 63 with a single end opening on the inner side of the groove end axial blocking plate 61. This structure can achieve fixed-point locking when the radial groove 6 and the radial protrusion 7 are screwed and locked, and will not cause loosening after hanging and screwing.

[0024] like Figure 4 As shown, corresponding to the radial groove 6, three protrusion end axial blocking plates 71 are evenly distributed on the outer end surface of the radial protrusion 7, the inner side of the protrusion end axial blocking plate 71 is provided with an outer plug-in groove 73, and the end of the outer plug-in groove 73 is provided with an outer radial baffle 72.

[0025] After the above structure is set, when the combination is performed, the radial grooves 6 and radial protrusions 7 on the adjacent dumbbell pieces 3 are coaxially corresponding and radially staggered to achieve axial plug-in, the groove end axial blocking plate 61 is screwed into the outer plug-in groove 73, and the protrusion end axial blocking plate 71 is synchronously screwed into the inner plug-in groove 63, and the inner radial baffle 62 and the outer radial baffle 72 are squeezed into one body when the screwing state reaches the state where the inner radial baffle 62 and the outer radial baffle 72 are squeezed into one body. This structure is more stable than the plug-in structure in the prior art. After the plug-in is completed, no matter the dumbbell piece is square, round, or polygonal, as long as there is no spiral hanging force in the radial direction, the assembled dumbbell piece cannot be loosened.

[0026] On the basis of the above structure, the utility model further designs the structures of the slot end axial blocking plate 61 and the inner radial blocking plate 61 to be a gradual thickness structure, which is gradually thickened from the radial end to the radial inside of the baffle body. The baffle body proposed here is the slot end axial blocking plate 61 and the inner radial baffle 61 itself. Through the above structural setting, the slot end axial blocking plate 61 and the inner radial baffle 61 can be tightened more and more when they are attached and screwed, further promoting the tightness of the combination of the two.

[0027] Another technical improvement of the utility model is that the outer diameters of the dumbbell plate 3 and the inner end plate 2 are both provided with grooves for restricting the axial movement of the lock button switch 5, and the grooves include an outer guide groove 31 and an inner end plate locking groove 21, and the lock button switch 5 is provided in the outer guide groove 31. Figure 4 , 5 As shown, a vertical connection portion 51 is provided at the lower portion of the lock button switch 5, a horizontally arranged plug-in protrusion 52 is connected to the lower portion of the vertical connection portion 51, and a plug-in gap 53 is provided at the front and rear sides of the vertical connection portion 51; a guide plate 32 and an inner guide groove are provided inside the dumbbell plate 3 to cooperate with the lock button switch 5, and the inner guide groove in this area is composed of two side plates 33 arranged opposite to each other, and the plug-in protrusion 52 is plug-in-guided with the inner guide groove formed between the two side plates. After the above structure is set, the guide plate 32 is plugged into the plug-in gap 53, and the inner guide groove is plugged into the plug-in protrusion 52; the lock button switch 5 and the dumbbell plate 3 are respectively provided with an inner spring fixing part 34 and an outer spring fixing part 54, and a spring is arranged between the inner spring fixing part 34 and the outer spring fixing part 54 as an axial elastic component. The inner spring fixing part 34 and the outer spring fixing part 54 described here are both columnar protrusions or polygonal columnar protrusions, and their main purpose is to be used for plugging in the spring to prevent the spring from moving. On this basis, those skilled in the art can also use grooves to fix the spring, and the two schemes have the same effect.

[0028] In order to realize the combination of the inner end plate 2 and the dumbbell piece 3, the utility model is provided with a radial protrusion 7 on the inner end plate 2 toward the dumbbell piece 3, and a radial groove 6 is provided on the dumbbell piece 3 corresponding to one side of the inner end plate 2, so that the dumbbell piece can be fixed on the inner end plate 2. Under the guidance of this technical solution, those skilled in the art can also provide a radial groove 6 on the inner end plate 2 toward the dumbbell piece 3, and a radial protrusion 7 is provided on the dumbbell piece 3 corresponding to one side of the inner end plate 2, and the plug-in effect is the same. The above structure can make the lock button switch 5 axially move to achieve locking without shaking and more stable, with a better user experience.

[0029] Furthermore, a screw mark 4 is provided on the radial groove 6 and the radial protrusion 7 or on one of the two. The technical personnel in this field provides the screw mark 4 on the radial protrusion 7. Since the radial protrusion 7 is convex, it is easier for the technical personnel in this field to observe. The screwing direction can be clearly determined according to the screw mark 4, and the operator can be further guided to realize the assembly of multiple dumbbell plates 3.

Claims

1. A rotatable and adjustable dumbbell, characterized in that: It includes a handle, with inner end plates fixed on both sides of the handle; a plurality of dumbbell plates are arranged on the outside of the inner end plate; radial grooves and radial protrusions are correspondingly arranged on the left and right sides of the dumbbell plates, and more than two groove end axial blocking plates are evenly arranged on the outer end surface of the radial groove, and an inner plug-in groove is arranged on the inner side of the groove end axial blocking plate, and an inner radial baffle is arranged at the end of the inner plug-in groove; more than two protrusion end axial blocking plates are evenly arranged on the outer end surface of the radial protrusion, and an outer plug-in groove is arranged on the inner side of the protrusion end axial blocking plate, and an outer radial baffle is arranged at the end of the outer plug-in groove; radial grooves or radial protrusions are arranged on the inner end plate facing the dumbbell plate; The outer diameters of the dumbbell piece and the inner end plate are both provided with grooves for restricting the axial movement of the lock button switch, and the lock button switch is arranged in the groove. The lower part of the lock button switch is provided with a plug-in gap and a plug-in protrusion. A guide plate and an inner guide groove are provided inside the dumbbell piece to match the lock button switch. The guide plate is plug-fitted with the plug-in gap, and the inner guide groove is plug-fitted with the plug-in protrusion. An axial elastic component is provided between the lock button switch and the dumbbell piece.

2. The rotatably adjustable dumbbell according to claim 1, characterized in that: The groove end axial baffle plate and the inner radial baffle plate are both set with gradual thickness, and gradually become thicker from the radial end to the radial inside of the baffle plate body.

3. The rotatably adjustable dumbbell according to claim 1, characterized in that: A screw mark is arranged on the radial groove and the radial protrusion or on one of the radial groove and the radial protrusion.

4. The rotatably adjustable dumbbell according to claim 1, characterized in that: Spring fixing parts are correspondingly arranged in the dumbbell plate and on the lock button switch. The spring fixing parts are protrusions or grooves. The two spring fixing parts cooperate with each other to realize the fixing of the elastic component.

5. The rotatably adjustable dumbbell according to claim 1, characterized in that: The inner guide groove is composed of two side plates arranged opposite to each other, and the plug-in protrusion is plugged into the gap between the two side plates.

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