Embedded barbell sheet base and barbell sheet based on embedded barbell sheet base
Technical Field
The invention belongs to the technical field of sports equipment, and particularly relates to an embedded barbell disc base body and a barbell disc based on the embedded barbell disc base body.
Background
Barbells and barbell-based primary exercises are far superior to other training equipment. Barbell exercises are controlled by each individual's specific motion pattern and are fine tuned by the length of the trainee's limbs, the location of the muscle connections, the strength level, flexibility and neuromuscular connection efficiency. The muscles involved in a barbell exercise are naturally in equilibrium, since all the muscles involved contribute to the part of their work that is specific to the human structure: the muscles move the joints between the bones, which in turn transmit force to the barbell. Such a movement pattern is in accordance with the laws of the human motion system.
At present, the mounting method of the old barbell disc is as follows: after the screw is unscrewed, the barbell disc is arranged on the lever, and then the screw is screwed down.
Disclosure of Invention
In view of the disadvantages of the prior art, it is an object of the present invention to provide an embedded barbell sheet base, and another object of the present invention is to provide a barbell sheet based on the embedded barbell sheet base, which greatly reduces the conversion time and enhances the convenience.
The purpose of the invention is realized by the following technical scheme.
An embedded barbell sheet base is a cylinder, a central through hole is formed in the center of the embedded barbell sheet base, and internal threads are formed in the central through hole and are used for being connected with a barbell rod; a plurality of concentric annular grooves are formed in one surface or two opposite surfaces of the embedded barbell sheet base body, each annular groove is used for placing a barbell ring, the annular grooves on one surface of the embedded barbell sheet base body are arranged at intervals, the embedded barbell sheet base body which is positioned outside the circumference of each annular groove and close to the annular groove is a spacing ring, a plurality of cavities are formed in each spacing ring along the circumferential direction, a clip structure is arranged in each cavity, a connecting starting point is fixedly arranged in each spacing ring, a sliding groove is fixedly arranged at the top end of each spacing ring, the connecting starting point and the sliding groove of each spacing ring are positioned between the same pair of clip structures of the spacing ring, and the central angle is less than 45 degrees, wherein each clip structure comprises a rod piece which is hinged in the cavity through a hinge piece, a limiting piece is fixedly arranged at one end of the rod piece, a limiting hole is formed in the cavity opposite to the limiting piece and communicated with the annular groove located on the inner side of the cavity, the other end of the rod piece is a free end, and a through hole is formed in the free end;
each sliding chute is internally provided with a sliding block, each connecting starting point is connected with one end of a steel wire, and the other end of the steel wire sequentially penetrates through a through hole of a rod piece in the spacing ring where the connecting starting point is located and penetrates out of the spacing ring to be connected with the sliding block of the spacing ring, so that the steel wire can be tensioned after the sliding block slides;
a pressure spring is connected between one side of each free end close to the central through hole and the cavity where the rod piece is located, and the pressure spring applies pressure to two sides of the pressure spring so that the limiting piece extends out of the limiting hole opposite to the limiting piece into the annular groove;
and tensioning the steel wire, wherein the rod piece rotates around the hinge piece, and the limiting piece moves back to the cavity corresponding to the limiting piece through the limiting hole.
In the above technical scheme, a first limiting column is fixedly installed in each cavity and used for guiding the steel wire passing through the through hole, wherein the first limiting column and the limiting part of the clip structure are respectively located on two sides of the pressure spring of the clip structure, and the first limiting column guides the tensioned steel wire to drive the rod piece to compress the pressure spring.
In the above technical scheme, in each clip structure, the steel wire passing through the through hole is located between the pressure spring and the first limiting column and clings to the first limiting column.
In the above technical scheme, at least 1 second limiting column is fixedly arranged in the cavity and used for guiding the track of the steel wire.
In the above technical solution, the cavities are uniformly distributed in the spacer ring, the number of the cavities of each spacer ring is greater than or equal to 3, and the number of the cavities of each spacer ring is preferably 4.
In the technical scheme, the pressure spring is arranged in the radial direction.
A barbell disc comprising: according to the above embedded barbell sheet substrate and at least one barbell ring, the barbell ring is a circular ring cylinder, the shape of the barbell ring is suitable for the size of the annular groove for placing the barbell ring, and when the limiting part is positioned in the annular groove, the limiting part prevents the barbell ring from moving out of the annular groove.
In the above technical solution, when the limiting member prevents the barbell ring from moving out of the annular groove, the limiting member is located on an upper end surface or a side surface of the barbell ring; a recessed groove is formed in the barbell ring, and the recessed groove is engaged with the corresponding limiting member when the limiting member prevents the barbell ring from moving out of the annular groove.
In the above technical solution, a concave-convex engagement structure is formed between the bottom end of the barbell ring and the bottom of the annular groove in which the barbell ring is placed, so as to block relative rotation between the barbell ring and the annular groove.
The use method of the embedded barbell disc comprises the following steps:
1) sliding the sliding block on the sliding chute until the limiting piece moves back to the cavity, and placing the barbell ring into an annular groove with the size suitable for the barbell ring;
2) and releasing the sliding block, wherein the rod piece is driven by the pressure spring to rotate by taking the hinge piece as a center until the limiting piece moves back into the annular groove again and the barbell ring in the annular groove is prevented from moving out.
Compared with the prior art, the embedded barbell sheet base body is simple in structure, and after the embedded barbell sheet base body is installed, when a barbell needs to be weighted, repeated disassembly and installation are not needed, and the barbell can be realized only by slightly sliding the sliding block in the sliding groove.
Drawings
FIG. 1 is a top plan view of an in-line barbell disc base of the present invention (without the cut lines on the spacer rings shown);
FIG. 2 is an enlarged view within the circle of FIG. 1 (without the cut-away line on the spacer ring);
FIG. 3 is a cross-sectional view of the embedded barbell plate base of the present invention (the annular grooves are located on the same side of the embedded barbell plate base, and the clip structures are not shown);
FIG. 4 is a cross-sectional view of the embedded barbell plate base of the present invention (with the annular grooves on opposite sides of the embedded barbell plate base and the clip structure not shown);
FIG. 5 shows a barbell ring in a barbell disc of the present invention.
The barbell ring comprises a base, a first limiting column 1, a sliding block 2, a sliding groove 3, a spacer ring 4, a connecting starting point 5, a clamp structure 6, a pressure spring 6-1, a limiting part 6-2, an articulating part 6-3, a rod piece 6-4, a protruding block 6-5, an annular groove 7, a central through hole 8, a steel wire 9, a second limiting column 10, a barbell ring 11 and a cavity 12.
Detailed Description
The technical scheme of the invention is further explained by combining specific examples.
The limiting member may be circular, square or any shape.
The rod piece can be a supporting rod or other shapes as long as the function of the rod piece can be realized.
Example 1
As shown in fig. 1 to 4, an embedded barbell sheet base is a cylinder, a central through hole 8 is formed at the central position of the embedded barbell sheet base, an internal thread is formed in the central through hole 8 for connecting with a barbell rod, a plurality of concentric annular grooves 7 are formed on one surface (as shown in fig. 3) or the opposite surfaces (as shown in fig. 4) of the embedded barbell sheet base, each annular groove 7 is used for placing a barbell ring 11, the plurality of annular grooves 7 on one surface of the embedded barbell sheet base are arranged at intervals, the embedded barbell sheet base outside the circumference of each annular groove 7 and close to the annular groove 7 is a spacing ring 4 (i.e. the spacing ring and the annular grooves are arranged at intervals), 4 cavities 12 are formed in each spacing ring 4 along the circumferential direction and uniformly distributed (the outline of the cavities is not shown in fig. 1 and 2), each cavity 12 is internally provided with a clip structure 6, each spacing ring 4 is internally and fixedly provided with a connecting starting point 5, the top end of each spacing ring 4 is fixedly provided with a sliding chute 3, the connecting starting point 5 and the sliding chute 3 of each spacing ring 4 are positioned between the same pair of clip structures 6 of the spacing ring, and the central angle is less than 45 degrees, wherein each clip structure 6 comprises a rod piece 6-4, the rod piece 6-4 is hinged in the cavity 12 through a hinge piece 6-3, one end of the rod piece 6-4 is fixedly provided with a limiting piece 6-2, a limiting hole (not shown in the figure) is formed on the cavity 12 opposite to the limiting piece 6-2, the limiting hole is communicated with an annular groove 7 positioned at the inner side of the cavity 12, the other end of the rod piece 6-4 is a free end, and a through hole is formed on the free end;
each sliding chute 3 is internally provided with a sliding block 2, each connecting starting point 5 is connected with one end of a steel wire 9, and the other end of the steel wire 9 sequentially passes through the through holes of all the rod pieces 6-4 in the spacing ring 4 where the connecting starting point 5 is positioned and penetrates out of the spacing ring 4 to be connected with the sliding block 2 of the spacing ring 4, so that the steel wire 9 can be tensioned after the sliding block 2 is slid;
a pressure spring 6-1 which is arranged in the radial direction is connected between one side of each free end close to the central through hole 8 and the cavity 12 where the rod piece 6-4 is located, and a convex block 6-5 which is used for guiding the direction of the pressure spring can be respectively arranged on the spacing ring and the rod piece. The pressure spring 6-1 applies pressure to two sides of the annular groove to enable the limiting piece 6-2 to extend out of the limiting hole opposite to the limiting piece 6-2 into the annular groove 7;
and tensioning the steel wire 9, rotating the rod piece 6-4 around the hinge piece 6-3, and moving the limiting piece 6-2 back to the cavity 12 corresponding to the limiting piece 6-2 through the limiting hole.
Example 2
On the basis of embodiment 1, a first limiting column 1 is fixedly installed in each cavity 12 and used for guiding the steel wire 9 passing through the through hole, wherein the first limiting column 1 and the limiting part 6-2 of the clip structure 6 are respectively located on two sides of the compression spring 6-1 of the clip structure 6, and the first limiting column 1 guides the tensioned steel wire 9 to drive the rod piece 6-4 to compress the compression spring 6-1. In each clip structure 6, the steel wire 9 passing through the through hole is positioned between the pressure spring 6-1 and the first limiting column 1 and clings to the first limiting column 1.
Example 3
On the basis of embodiment 2, at least 1 second limiting column 10 is fixedly arranged in the cavity 12 and used for guiding the track of the steel wire 9.
Example 4
A barbell disc comprising: in any of the above embodiments, the embedded barbell sheet base and at least one barbell ring 11, wherein barbell ring 11 is a circular cylinder (as shown in fig. 5), barbell ring 11 has a shape corresponding to the size of annular groove 7 for placing barbell ring 11, and when stopper 6-2 is located in annular groove 7, stopper 6-2 prevents barbell ring 11 from moving out of annular groove 7.
When the limiting piece 6-2 prevents the barbell ring 11 from moving out of the annular groove 7, the limiting piece 6-2 is positioned on the upper end face or the side face of the barbell ring 11; in order to hinder relative rotation between barbell ring 11 and annular groove 7, the first and/or second method can be adopted:
the first method is as follows: a recessed groove (not shown) is formed in barbell ring 11 to engage with corresponding retaining member 6-2 when retaining member 6-2 prevents barbell ring 11 from being removed from annular groove 7.
The second method comprises the following steps: a concave-convex engagement structure (not shown) is formed between the bottom end of barbell ring 11 and the bottom of annular groove 7 in which barbell ring 11 is placed.
The use method of the barbell disc comprises the following steps:
1) sliding the sliding block 2 on the sliding chute 3 until the limiting piece 6-2 moves back to the cavity 12, and placing the barbell ring 11 into the annular groove 7 with the size suitable for the barbell ring;
2) and releasing the slide block 2, and driving the rod piece 6-4 to rotate by taking the hinge piece 6-3 as a center through the pressure spring 6-1 until the limiting piece 6-2 moves back into the annular groove 7 again and prevents the barbell ring 11 in the annular groove 7 from moving out.
When the weight of the barbell disc needs to be increased, the number of barbell rings placed in the annular groove is increased; when the weight of the barbell disc is reduced, the number of barbell rings placed in the annular groove is reduced. When the barbell ring needs to be taken out from the annular groove, the sliding block 2 is slid on the sliding groove 3 until the limiting piece 6-2 moves back to the cavity, and the barbell ring 11 is taken out from the annular groove 7.
The invention has been described in an illustrative manner, and it is to be understood that any simple variations, modifications or other equivalent changes which can be made by one skilled in the art without departing from the spirit of the invention fall within the scope of the invention.