Multifunctional kettlebell

Abstract

A multifunctional kettlebell, having a shell with a grip, a plurality of weight blocks, and, at least one grip bar detachably assembled with the weight blocks to form a dumbbell or barbell. The shell has two flip shells, which can flip between an open state and a closed state. A first mounting groove for placing the weight blocks is on an inner side of the flip shell, the two flip shells in the closed state are interlocked oppositely to form the kettlebell, and the two flip shells in the open state are opened to store the weight blocks. During use, the weight blocks can be placed in the first mounting grooves of the flip shells and the two flip shells are closed to serve as a kettlebell, and the weight blocks can be assembled with the at least one grip bar to serve as a dumbbell or barbell.

What is claimed is: 
     
         1 . A multifunctional kettlebell, comprising a shell with a grip and a plurality of weight blocks, and further comprising at least one grip bar detachably assembled with the weight blocks to form a dumbbell or barbell, wherein the shell comprises two flip shells, which can flip between an open state and a closed state; a first mounting groove for placing the weight block is provided on an inner side of the flip shell; the two flip shells in the closed state are interlocked oppositely to form a kettlebell, and the two flip shells in the open state are opened to store the weight blocks. 
     
     
         2 . The multifunctional kettlebell according to  claim 1 , wherein the plurality of first mounting grooves adapted to the weight blocks are provided on the inner side of the flip shell, or a first mounting groove adapted to the plurality of weight blocks with peripheral surfaces arranged closely is provided on the inner side of the flip shell. 
     
     
         3 . The multifunctional kettlebell according to  claim 1 , wherein the first mounting groove adapted to four weight blocks are provided on the inner side of the flip shell, and the four weight blocks are arranged closely in a matrix. 
     
     
         4 . The multifunctional kettlebell according to  claim 1 , wherein the two flip shells have opposite interlocking edges, the interlocking edge of one of the flip shells is formed with an edge groove that extends along its length direction, the interlocking edge of the other flip shell is formed with a convex edge that extends along its length direction and is adapted to the edge groove. 
     
     
         5 . The multifunctional kettlebell according to  claim 1 , wherein the shell further comprises a bottom shell, and lower ends of the two flip shells are rotatably connected to two sides of the bottom shell. 
     
     
         6 . The multifunctional kettlebell according to  claim 5 , wherein lower edges of the two flip shells in the closed state are adaptively spliced with an upper edge of the bottom shell, an inner side of the lower edge of the flip shell is formed with a receiving groove that extends along its length direction, and an inner side of the upper edge of the bottom shell is formed with a receiving protrusion adapted to the receiving groove. 
     
     
         7 . The multifunctional kettlebell according to  claim 5 , wherein the flip shell is rotatably connected to the bottom shell through a hinge mechanism; the hinge mechanism comprises a first pivot seat, a second pivot seat, and a connecting rod; the first pivot seat comprises two parallel and opposite first adapter plates arranged on the flip shell, the second pivot seat comprises two parallel and opposite second adapter plates arranged on the bottom shell, one end of the connecting rod is rotatably arranged between the two first adapter plates through a first pivot shaft, and the other end of the connecting rod is rotatably arranged between the two second adapter plates through a second pivot shaft. 
     
     
         8 . The multifunctional kettlebell according to  claim 7 , wherein the flip shells are rotatably connected to the bottom shell through two hinge mechanisms, the two hinge mechanisms share one first pivot shaft and one second pivot shaft, the first pivot shaft crosses the two first adapter plates and one end of the connecting rod of the two hinge mechanisms, and the second pivot shaft crosses the two second adapter plates and the other end of the connecting rod of the two hinge mechanisms. 
     
     
         9 . The multifunctional kettlebell according to  claim 1 , wherein the switch mechanism for keeping the two flip shells in the closed state is further comprised; the switch mechanism comprises a button, a spring, and a locking hole; the button is arranged on one of the flip shells movably between a locking position and a release position, the spring is used for driving the button to move to the locking position, the button is provided with a locking portion protruding upwards, and a locking hole is provided on the other flip shell; when the button is in the locking position, the locking portion is embedded into the locking hole to limit the opening of the two flip shells; when the button is pressed in the release position, the locking portion disengages from the locking hole to open the two flip shells. 
     
     
         10 . The multifunctional kettlebell according to  claim 1 , wherein the shell is in a kettlebell shape with a small top and a large bottom. 
     
     
         11 . The multifunctional kettlebell according to  claim 1 , wherein the half of the grip is formed at an upper end of one of the flip shells, the other half of the grip is formed at an upper end of the other flip shell, and the two flip shells are closed to form the grip. 
     
     
         12 . The multifunctional kettlebell according to  claim 1 , wherein a dovetail groove is formed on one side of the weight block, one end of the dovetail groove is closed and the other end is opened on the peripheral surface of the weight block, a first insertion portion adaptively inserted in the dovetail groove is formed on the other side of the weight block, two adjacent weight blocks are in insertion fit through the first insertion portions and the dovetail grooves, and a locking mechanism for limiting the sliding of the first insertion portion relative to the dovetail groove is provided on the weight block. 
     
     
         13 . The multifunctional kettlebell according to  claim 12 , wherein the locking mechanism comprises a knob, a driving block, a slider, and a spring; the slider is arranged on the weight block in a sliding manner between the locking position and the release position, the sliding direction of the slider is perpendicular to the length direction of the dovetail groove, the slider has a limit portion that can extend into the dovetail groove, and the first insertion portion is formed with a first limit groove adapted to the limit portion; when the slider is in the locking position, the limit portion is embedded into the first limit groove to limit the sliding of the first insertion portion relative to the dovetail groove; the driving block is rotatably arranged on the weight block, the knob is connected to the driving block, the driving block has an arc-shaped convex surface, and the slider has an arc-shaped concave surface adapted to the arc-shaped convex surface; when the knob drives the driving block to rotate, the arc-shaped convex surface and the arc-shaped concave surface cooperate to drive the slider to move to the release position, and the spring drives the slider to move to the locking position. 
     
     
         14 . The multifunctional kettlebell according to  claim 13 , wherein the locking mechanism comprises two sliders located on two sides of the driving block and two springs that drive the two sliders to slide to the locking position, and the limit portions of the two sliders are arranged oppositely. 
     
     
         15 . The multifunctional kettlebell according to  claim 13 , wherein a chute for sliding the slider and mounting the driving block is formed on the peripheral surface of the weight block, a cover plate covering the chute is provided on the weight block, the driving block is rotatably arranged in the chute through a rotating shaft, and the rotating shaft passes through the cover plate and is connected to the knob. 
     
     
         16 . The multifunctional kettlebell according to  claim 1 , wherein a second mounting groove adapted to the grip bar is provided on the inner side of the flip shell, and the second mounting groove is located below the first mounting groove. 
     
     
         17 . The multifunctional kettlebell according to  claim 12 , wherein a plurality of grip bars assembled with the weight blocks to form a dumbbell or barbell are further comprised, the grip bars are of tubular structures, a detachable connection seat is provided on at least two weight blocks, the connection seat is provided with a second insertion portion in insertion fit with the dovetail groove, a connection structure detachably connected to the connection seat is provided at each of two ends of at least one grip bar, a reducing insertion segment is formed at one end of the at least one grip bar, and a connection structure detachably connected to the connection seat is provided at the other end of the at least one grip bar; a reducing insertion segment is formed at one end of the at least one grip bar, and the insertion segment of another grip bar can be inserted into the other end; a retractable elastic buckle is provided on a peripheral surface of the insertion segment, and the grip bar is provided with a buckle hole for inserting the elastic buckle. 
     
     
         18 . The multifunctional kettlebell according to  claim 17 , wherein the connection structure comprises a mounting plate arranged in the grip bar, the mounting plate is provided with a screw hole, the connection seat is connected to the connection structure through a bolt, and the bolt is locked and connected to the screw hole after passing through the connection seat. 
     
     
         19 . The multifunctional kettlebell according to  claim 17 , wherein a buckle hole is formed at one end of the grip bar provided with a connection structure. 
     
     
         20 . The multifunctional kettlebell according to  claim 18 , wherein a circular groove is formed on the connection seat to receive an end of the grip bar, a protruding positioning portion is provided on a wall of the circular groove, and a positioning notch adapted to the positioning portion is formed at the end of the grip bar.