CN114272556A

CN114272556A - Kettle bell with fan-shaped balancing weight

Info

Publication number: CN114272556A
Application number: CN202111511176.XA
Authority: CN
Inventors: 王罗平
Original assignee: Kunshan Shiquan Plastic Hardware Products Co ltd
Current assignee: Kunshan Shiquan Plastic Hardware Products Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-04-05
Anticipated expiration: 2041-12-03
Also published as: CN114272556B

Abstract

The invention discloses a kettle bell with a fan-shaped balancing weight, which comprises a base, a balancing weight, a lifting seat, a rotary weight selecting mechanism and a plurality of switching mechanisms. The counterweight group comprises a plurality of counterweights which are arranged on the base in a fan-shaped mode around the axis. The lifting seat is provided with a combination space which penetrates through the lifting seat up and down and is used for accommodating the configuration assembly, the lifting seat is detachably arranged on the base, and the rotary weight selecting mechanism can be rotatably arranged on the lifting seat. The switching mechanism is sleeved on the rotary weight selecting mechanism in an overlapping mode and is used for being combined with the weight group. The invention utilizes the innovative design that the counterweight group is arranged around the axis, so that when the counterweight block combined with the switching mechanism is lifted together with the lifting seat, the gravity center of the counterweight group can not move along the direction of the axis, and the safety of a user when lifting or swinging the kettle bell can be improved.

Description

Kettle bell with fan-shaped balancing weight

Technical Field

The invention relates to a kettle bell, in particular to a kettle bell with a fan-shaped balancing weight.

Background

A known kettle bell comprises a base, a plurality of balancing weights stacked on the base along an axis in an upper layer and a lower layer, and a lifting seat. When the lifting seat is used, the lifting seat is placed on the base, and then the lifting seat is combined with the selected balancing weight and lifted for body building.

Although the prior kettle-bell can be used for the user to balance the weight by himself. However, when the lifting seat is lifted, the weight blocks combined therein are still stacked up and down according to the selected weight, so that the gravity center positions of the kettlebells corresponding to different weights can be changed up and down along the axis, and therefore, when a user lifts and swings the kettle bells, the gravity center of the applied force and the muscle positions of the applied force need to be adjusted correspondingly in cooperation with the kettle bells of different weights; if the gravity center of the applied force or the muscle position of the applied force is not controlled well, the sports injury is easily caused.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a kettle bell with a fan-shaped balancing weight.

The purpose of the invention is realized by the following technical scheme:

the invention relates to a kettle bell with a fan-shaped balancing weight, which comprises a base, a balancing weight, a lifting base, a rotary weight selecting mechanism and a plurality of switching mechanisms.

The counterweight group comprises a plurality of counterweight blocks, and the counterweight blocks are arranged on the base in a fan shape in a mode of surrounding an axis.

The lifting seat is provided with a combination space which penetrates through the lifting seat up and down and is used for accommodating the matching set, and the lifting seat can be detachably placed on the base.

The rotary weight selecting mechanism can be rotatably arranged on the lifting seat.

The switching mechanism is sleeved on the rotary weight selecting mechanism in an overlapping mode and is used for being combined with the weight group.

According to the kettle bell with the fan-shaped balancing weights, each switching mechanism can be simultaneously combined with the two balancing weights which are symmetrical by taking the axis as the center.

The invention relates to a kettle bell with a fan-shaped balancing weight, wherein a lifting seat comprises a buffering and positioning unit; the rotary weight selecting mechanism comprises a rotary disk, a shaft pipe unit and a buffer positioning unit, the rotary disk can be rotatably arranged on the lifting seat, the shaft pipe unit penetrates through the rotary disk and the switching mechanism and is used for driving the switching mechanism to select and combine with the balancing weight when the rotary disk rotates, and the buffer positioning unit is arranged below the rotary disk and is used for limiting the rotary disk to rotate to a specific angle.

According to the kettle bell with the fan-shaped balancing weights, each balancing weight of the balancing weight group is provided with a plurality of depressed areas which are arranged at intervals along the direction of the axis; each switching mechanism comprises a switching shell, a weight selecting unit group and a switching disc, wherein the weight selecting unit group is arranged in the switching shell and can move outwards in the radial direction by taking the axis as the center when stressed, and the switching disc is fixedly sleeved on the shaft tube unit and can abut against the weight selecting unit group so that the weight selecting unit group extends into the corresponding depressed area of the balancing weight.

According to the kettle bell with the fan-shaped balancing weights, the balancing weights are arranged in an equal angle, the switching disc of each switching mechanism is positioned between the weight selecting unit groups and is provided with two bulges which extend reversely from the axis, and when the rotating weight selecting mechanism drives the switching disc to rotate by a preset angle, the bulges of the switching disc can be abutted against the corresponding weight selecting unit groups.

In the kettle bell with the fan-shaped balancing weight, the angle of the central angle corresponding to the bulge of the switching plate is gradually reduced, and each bulge is provided with at least one weight selecting part limiting area which can be embedded with the corresponding weight selecting unit group which is propped against the bulge.

According to the kettle bell with the fan-shaped balancing weight, each weight selecting unit group is arranged in a mirror image mode according to the axis, each weight selecting unit group is provided with two weight selecting pieces, and each weight selecting piece is located in the switching shell and can radially protrude into the corresponding depressed area of the balancing weight.

The axle tube unit comprises a hollow tube, and the hollow tube penetrates through the rotating disc and the switching disc of the switching mechanism and is used for driving the switching disc and the rotating disc to rotate synchronously.

The invention relates to a kettle bell with a fan-shaped balancing weight, wherein a base comprises a seat body and an unlocking block, the unlocking block upwards protrudes from the seat body, the lifting seat also comprises a lifting seat shell and a limiting ring plate frame, and the limiting ring plate frame is connected to the top side of the lifting seat shell and is provided with a plurality of locking slots; the kettle bell with the fan-shaped balancing weight also comprises a shaft lever lifting mechanism which comprises a shaft lever, can movably penetrate through the hollow pipe and is arranged on the unlocking block; a locking pin, which is assembled on the axle center rod and moves between a first position and a second position relative to the hollow tube; and the elastic piece is propped between the rotating disc and the top side of the axis rod, and when the lifting seat is separated from the base, the elastic force can enable the locking pin to be clamped in one locking slot.

The kettle bell with the fan-shaped balancing weight is characterized in that the base is provided with a plurality of first limiting parts which are arranged around the axis at intervals; the bottom surface of the balancing weight is provided with a plurality of second limiting parts which are arranged around the axis at intervals.

According to the kettle bell with the fan-shaped balancing weight, the outer surface of the balancing weight is provided with the third limiting parts, and the third limiting parts are arranged around the axis at intervals; the combining space of the lifting seat shell is internally provided with a plurality of fourth limiting parts which are arranged around the axis at intervals.

The invention has the following beneficial effects: by utilizing the design that the matching group is arranged around the axis, when the lifting seat is combined with the preset balancing weight, the gravity center of the matching group is prevented from moving along the direction of the axis, and the smoothness and the safety of the kettle-bell during the use of the kettle-bell are effectively improved.

Drawings

The technical scheme of the invention is further explained by combining the accompanying drawings as follows:

fig. 1 is an exploded perspective view illustrating a first embodiment of a kettle bell with a fan-shaped weight member according to the present invention;

FIG. 2 is an exploded perspective view illustrating a poppet of the first embodiment;

FIG. 3 is an exploded perspective view of another angle of the first embodiment;

FIG. 4 is an exploded perspective view of the topmost switching mechanism;

FIG. 5 is an exploded perspective view of another angle of the top-most switching mechanism;

FIG. 6 is an exploded perspective view of 8 switching mechanisms from top to bottom;

FIG. 7 is a cross-sectional view illustrating the first embodiment;

FIG. 8 is a cross-sectional view illustrating the lifting platform being lifted;

FIG. 9 is a cross-sectional view illustrating an alternative one of the switching mechanisms of the first embodiment in combination with a corresponding weight;

FIG. 10 is a perspective view of a second embodiment of the kettle bell with fan-shaped weight blocks of the present invention, illustrating a plurality of weight blocks disposed on the base;

FIG. 11 is a perspective view of a third embodiment of the kettle bell with fan-shaped weight blocks of the present invention, illustrating a plurality of weight blocks disposed on the base;

fig. 12 is a perspective view of a fourth embodiment of the kettle bell with fan-shaped counter weights of the present invention, illustrating that a plurality of counter weights are placed on the base, and the rest are combined with the lifting base;

FIG. 13 is a cross-sectional view illustrating the lifting seat and the weight member coupled to the lifting seat in the fourth embodiment;

fig. 14 is a perspective view of a fifth embodiment of the kettle bell with fan-shaped weight blocks of the present invention, illustrating a plurality of weight blocks placed on the base and the remaining plurality of combined lifting seats; and

fig. 15 is a cross-sectional view illustrating the lifting seat and the weight block combined with the lifting seat according to the fifth embodiment.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art in light of these embodiments are intended to be within the scope of the present invention.

In the description of the schemes, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

Before the present invention is described in detail, it should be noted that in the following description, like elements are represented by like reference numerals.

Referring to fig. 1 to 3 and 7, a first embodiment of the kettle bell with a fan-shaped weight block according to the present invention includes a base 1, a weight block 2, a lifting base 3, a rotary weight selecting mechanism 4, a shaft lifting mechanism 5, and a plurality of switching mechanisms 6. In the present embodiment, the number of the switching mechanism 6 is 8.

The base 1 has a generally disc-shaped base body 11, an unlocking block 12, and a plurality of first position-limiting portions 13. The unlocking piece 12 protrudes from a central region of the top surface of the seat body 11. The first position-limiting portions 13 respectively protrude upwards from the top surface of the base body 11 and are arranged around an axis L at intervals.

The counterweight group 2 comprises a plurality of counterweights 21, and the counterweights 21 are arranged on the base 1 in a fan shape and in an equal angle manner in a mode of surrounding the axis L and surround the unlocking block 12 at intervals. Each weight member 21 has a fan-shaped cross section and a plurality of recessed areas 211, and a second limiting portion 212 disposed on the bottom surface. The recessed areas 211 are arranged at intervals along the direction of the axis L, the second position-limiting portions 212 can be mutually embedded with the respective first position-limiting portions 13, and the second position-limiting portions 212 are arranged at intervals around the axis L. The shape and the weight of the balancing weight 21 are the same, and the weight exercise of the following kettle bell cannot be influenced even if the positions are interchanged. In the present embodiment, each first position-limiting portion 13 is a protruding bump 131 in a granular shape, and each second position-limiting portion 212 is an upwardly concave caulking groove. In other variations of the present embodiment, the protrusion and the recess of the first position-limiting portion 13 and the second position-limiting portion 212 can be interchanged, so long as the effect of mutual engagement and position limitation can be achieved.

The lifting seat 3 is detachably disposed on the base 1, and includes a lifting seat housing 31, a limiting ring plate rack 32, an upper cover 33, and a handle 34 disposed on a top side of the lifting seat housing 31.

The lifting seat shell 31 is generally spherical and has a vertically penetrating combining space 311 for accommodating the matching set 2. The retainer disc holder 32 is integrally or non-integrally connected to the top side of the seat housing 31, and has a first through hole 323 passing through vertically, at least one buffer stop blind hole 324, a locking chamber 321, a plurality of locking slots 325 recessed in the locking chamber 321, and a buffer positioning unit 326. The first through hole 323 is circular and located on the axis L. The blind buffering and limiting holes 324 are arranged symmetrically with respect to the axis L and open upwards. The locking slots 325 are located below the locking chamber 321, radially distributed about the axis L, and surround the first through hole 323. The buffering positioning unit 326 has two buffering elastic members 327 and two positioning members 328. The upper cover 33 is assembled and covered on the top side of the limiting ring plate frame 32, and has a second through hole 331 and at least a third through hole 332 penetrating up and down, and the top surface of the upper cover 33 provides a scale 333 for display. The second through hole 331 is circular and corresponds to the first through hole 323 in position. The third through hole 332 is correspondingly located above the buffering and limiting blind hole 324. The buffer positioning units 326 are respectively accommodated in the buffer limiting blind holes 324, and the top sides thereof respectively penetrate through the third through holes 332. The positioning member 328 is a ball. The handle 34 is attached to the top side of the upper cover 33 and is lifted. It should be noted that, in other variations of the present embodiment, the retainer ring plate frame 32 can also be assembled to the seat housing 31 by a fixing member (not shown).

The rotating weight selecting mechanism 4 is assembled on the lifting seat 3 and includes a rotating disc 41, a lubricating and supporting unit 43, a pressing and limiting unit 44, and a shaft tube unit 45.

The rotating disc 41 is located above the upper cover 33, and has a rotating disc 411, a first square limiting through hole 412 vertically penetrating through the rotating disc 411, two display windows 413 vertically penetrating through the left and right sides of the rotating disc 411 respectively, a positioning ring groove 414 concavely arranged on the bottom surface of the rotating disc 411, and a top side accommodating area 415 communicatively located above the first square limiting through hole 412. The display windows 413 are exposed to the selected scale 334 in the scale table 333 of the cover 33. The positioning ring groove 414 has a plurality of angularly spaced circular positioning groove portions 416 and a plurality of connecting groove portions 417 each connecting adjacent positioning groove portions 416 in an arc direction. The positioning groove portions 416 have a depth greater than that of the connection groove portions 417. The top side of the buffer elastic member 327 is located in the positioning groove portion 416 corresponding to the positioning ring groove 414. Each of the buffer elastic members 327 provides an elastic force for positioning the corresponding positioning member 328 upward in the corresponding positioning slot portion 416. Therefore, when the rotating disc 41 is operated to rotate, the positioning member 328 can be selected to the corresponding positioning groove portion 416 along the positioning ring groove 414 and positioned therein, so that the rotating disc 41 can rotate to a specific angle of the display window 413 corresponding to the scale.

The lubrication supporting unit 43 is disposed through the second through hole 331 and the first through hole 323, protrudes downward from the limiting ring plate frame 32, is disposed on the bottom surface of the rotating disc 41, abuts against the upper cover 33, and rotates synchronously with the rotating disc 41. The lubricant holder unit 43 has a second square through hole 431 extending vertically therethrough, and a first elongated slot 432 extending vertically and laterally therethrough and located at the bottom side thereof. The lubricant holder unit 43 is configured to allow the rotary disk 41 to be smoothly operated and rotated.

The pressing limiting unit 44 is located in the top-side receiving area 415, and includes a circular limiting piece 441 placed on the rotating disk 41, a pressing piece 442 located above the limiting piece 441, and a cover 443 covering the pressing piece 442. The stopper 441 has a shaft through hole 444 above the first square stopper through hole 412. The shaft through hole 444 is smaller in size than the first square stopper through hole 412, and covers a partial area of the first square stopper through hole 412. The cover 443 is inserted against the top receiving area 415. In the present embodiment, the pressing member 442 is a bolt.

The shaft tube unit 45 can be rotated by the rotating disc 41 and includes a bottom plate 451 and a hollow tube 452. The bottom plate 451 is placed on the top surface of the base 1, is circular, and has a pipe penetration hole 453 in the center and in a square shape. The hollow tube 452 has a second slotted hole 454 at the top side and transversely penetrating through both sides of the hollow tube 452, and an axial rod channel 455 penetrating up and down. The hollow pipe 452 is located in the coupling space 311 of the lifting seat 3, and a bottom side thereof is fixedly inserted into the pipe insertion hole 453 of the bottom plate 451. The top side of the hollow tube 452 protrudes out of the lifting seat 3, and is fixedly inserted into the first square limiting through hole 412 and the second square limiting through hole 431 to abut against the bottom surface of the limiting plate 441, and the positions of the first long slot hole 432 and the second long slot hole 454 correspond to each other.

The shaft lifting mechanism 5 includes a shaft 51, a locking pin 52, and an elastic member 53. The spindle shaft 51 has a pin through hole 511 which is circular and is located on the top side and penetrates laterally. The shaft rod 51 abuts against the unlocking block 12 and is vertically movably inserted into the shaft rod channel 455 of the hollow tube 452. The locking pin 52 is transversely inserted through the pin insertion hole 511, the first slot hole 432 and the second slot hole 454, and is fixedly assembled to the top side of the axle rod 51 and located above the locking slot 325. The locking pin 52 is movable relative to the hollow tube 452 between a first position and a second position. In the first position, the locking pin 52 is located in the locking chamber 321 and can rotate around the axis L; in the second position, the locking pin 52 is located in one of the locking slots 325 and cannot rotate. The elastic member 53 abuts against the abutting member 442 and the top side of the shaft rod 51, and provides an elastic force for moving the shaft rod 51 away from the abutting member 442. Therefore, when the axle rod 51 does not abut against the unlocking block 12, the locking pin 52 is located at the second position and is clamped in one of the locking slots 325.

Referring to fig. 3 to 6, the switching mechanism 6 is stacked on each other and sleeved on the hollow tube 452. Each switching mechanism 6 includes a switching housing 61 having a circular shape, a selector group 62, and a switching disk 63.

In each switching mechanism 6, the switching housing 61 has an outer wall 611, a weight member receiving slot 619, and a bottom wall 613. The bottom wall 613 has a first through hole 616 passing through the bottom wall and located at the center. The outer wall 611 has two weight selection member perforations 617 extending radially symmetrically therethrough. The weight selector container 619 has a central, generally circular main channel 601 and two sub-channels 602. The auxiliary grooves 602 extend in opposite directions from the main groove 601 and communicate with the weight selecting member through holes 617. The first through hole 616 is used for the hollow tube 452 to pass through. In this embodiment, the switch housing 61 further optionally includes a cover housing 612 having a second through hole 618. The second through hole 618 penetrates up and down and is located corresponding to the first through hole 616, and the hollow tube 452 is disposed therein. The weight selecting unit set 62 is disposed in the weight selecting element accommodating groove 619, and is arranged in a mirror image manner with central symmetry about the axis L. The weight selecting unit 62 has two weight selecting members 621 and two elastic members 622. Each weight 621 has a head 623 and a stem 624, which are located primarily in the corresponding secondary trough 602. The shaft 624 extends radially outward from the head 623 and has a smaller diameter than the head 623. Each elastic member 622 is sleeved on the respective rod portion 624 and abuts against the corresponding head portion 623 and the outer wall 611. Each elastic member 622 has an elastic force for driving the corresponding weight selecting member 621 to move along the axis L. The weight selection members 621 are able to pass radially outward through the weight selection member apertures 617, respectively, when subjected to a force. The switching plate 63 is located between the selecting and repeating unit groups 62, and has a central position-limiting middle hole 631, two protrusions 632 and two notches 633 located at the periphery. The limiting middle hole 631 is fixedly sleeved on the hollow pipe 452 and is located in the main groove 601. The protrusions 632 symmetrically extend in opposite directions, and each protrusion 632 has at least one concave weight-selecting-element-limiting region 634. Each recess 633 is defined between the protrusions 632 and is adapted to receive the head 623 of the respective weight 621 therein. Therefore, the switching plate 63 is driven by the hollow tube 452 to rotate, and the switching housing 61 and the selecting and repeating unit set 62 do not rotate relative to the lifting seat 3. Referring to fig. 9, when the switching plate 63 rotates until the protrusions 632 respectively abut against the weight selecting members 621, the weight selecting members 621 are pushed outward in the radial direction, so that the weight selecting members 621 extend into the corresponding recessed areas 211 of the weight balancing block 21 through the through holes 617 to be combined with the weight balancing block 21, and the head 623 is partially embedded in the at least one weight selecting member limiting area 634.

Referring to fig. 6, the angle of the central angle corresponding to the protrusion 632 of the switching plate 63 from top to bottom is gradually decreased, and the number of the weight selection element limiting areas 634 of each protrusion 632 of the switching plate 63 from top to bottom is decreased progressively. Each protrusion 632 and the corresponding notch 633 define a side surface 635 therebetween, and each weight 621 abuts against the corresponding side surface 635.

In addition, at least one first locking portion 603 is disposed at the boundary between the bottom wall 613 and the outer wall 611. In this embodiment, a plurality of the first catching portions 603 surrounding the outer wall 615 at equal intervals are provided. The top side of the outer wall 611 is further provided with at least one second clamping portion 604. In this embodiment, a plurality of second clamping portions 604 are provided to surround the top side of the outer wall 611 at intervals. In the present embodiment, each first locking portion 603 is recessed inward and upward in the radial direction, and each second locking portion 604 is protruded upward, so that the first locking portion 603 is engaged with the second locking portion 604 of the switching housing 61 located below, and the second locking portion 604 is engaged with the first locking portion 603 of the switching housing 61 located above. In other variations of the present embodiment, the concave and convex shapes of the first engaging portion 603 and the second engaging portion 604 can be interchanged, so long as the switch housing 61 is engaged with each other vertically and cannot rotate relatively.

Referring to fig. 1, 2 and 7, the kettle bell is lifted. The locking pin 52 is located at the first position and can rotate synchronously with the rotating disc 41, a user first rotates the rotating disc 41 to a predetermined weight scale corresponding to the upper cover 33, and the axle tube unit 45 rotates along with the rotating disc, so as to drive the switching disc 63 to rotate by a predetermined angle. At this time, if the protrusions 632 of the switching plate 63 can be pushed outward from the respective weight selecting unit groups 62 depending on the predetermined angle, the weight selecting unit groups 62 of the switching mechanism 6 are coupled to the two counter weights 21 which are symmetrical about the axis L.

Referring to fig. 1, 7 and 8, the user then lifts the handle 34 upward to disengage the lifting base 3, the rotary weight selector 4, the switching mechanism 6 and the shaft rod lifting mechanism 5 from the base 1. At this time, the axle rod 51 is separated from the unlocking block 12 and pushed down by the elastic member 53 to drive the locking pin 52 to be located at the second position and to be engaged with the corresponding locking slot 325, so that when the lifting seat 3 is lifted, the rotary weight selecting mechanism 4 cannot rotate relative to the lifting seat 3 any more, and the action of selecting the counter weight 21 cannot be performed any more.

When the kettle bell is used, the lifting seat 3 is put back on the base 1, so that the unlocking block 12 is propped against the axle rod 51 again to push up. At this time, the locking pin 52 moves upward together to be separated from the locking slot 325 back to the first position, and weight selection can be performed again.

The following table 1 is a table showing the scales corresponding to the rotating disc 41, the number of the switching mechanisms 6 combined with the weight blocks 21, and the number of the weight blocks 21 combined with the lifting base 3. It should be noted that table 1 is only for illustrating the features of the present invention and the selectable predetermined weights, and the actual number of weights and the weight range are not limited thereto.

TABLE 1

Fig. 10 shows a second embodiment of the kettle-bell with fan-shaped weight member according to the present invention. The second embodiment is similar to the first embodiment. The difference lies in: the recessed area 211 of each weight 21 may also be a transversal embedding slot 2111 for the corresponding weight 621, as shown in fig. 4, to be inserted and combined.

Fig. 11 shows a third embodiment of the kettle-bell with fan-shaped weight member according to the present invention. The third embodiment is similar to the first embodiment. The difference lies in: the first position-limiting portion 13 of the base 1 is a vertical and radially extending spacer 132, and is located between two adjacent weight blocks 21. By using the design of the first limiting part 13, the fan-shaped balancing weight 21 can be still limited, and rotation or shaking is avoided.

Referring to fig. 12 and 13, a fourth embodiment of the kettle bell with fan-shaped weight member according to the present invention is shown. The fourth embodiment is similar to the first embodiment. The difference lies in: each weight member 21 further has a third position-limiting portion 213, the third position-limiting portions 213 are angularly spaced around the axis L, and the combining space 311 of the seat housing 31 has a plurality of fourth position-limiting portions 312 which are angularly spaced around the axis L and can be engaged with the respective third position-limiting portions 213. In the present embodiment, each third position-limiting portion 213 is a position-limiting groove 2131 recessed downward from the outer surface of the weight member 21, and each fourth position-limiting portion 312 is a protrusion 3121 protruding from the combining space 311 of the lifting seat housing 31 and capable of engaging with the position-limiting groove. In other variations of the present embodiment, the recessed and protruding aspects of the third limiting portion 213 and the fourth limiting portion 312 can be interchanged.

Referring to fig. 14 and 15, a fifth embodiment of the kettle bell with fan-shaped weight member according to the present invention is shown. The fifth embodiment is similar to the fourth embodiment. The difference lies in: the third position-limiting portion 213 of each weight member 21 is located on the outer surface of the weight member 21 and is a protrusion 2132 extending vertically, and each fourth position-limiting portion 312 is a concave strip 3122 engaging with the protrusion 2132 from the combining space 311 of the seat housing 31.

In summary, according to the kettle bell with the fan-shaped weight blocks of the present invention, the rotating weight selecting mechanism 4 and the switching mechanism 6 are utilized to cooperate with the fan-shaped weight blocks 21, so that each switching mechanism 6 can be combined with the weight blocks 21 that are symmetrical to each other, and the center of gravity of the combined weight block 21 is maintained to be fixed on the axis L, and will not move up and down along the axis L along with the increase and decrease of the combined weight block 21, thereby effectively improving the stability of lifting the kettle bell by the user.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. A kettle bell with a fan-shaped balancing weight is characterized in that: the method comprises the following steps:

a base;

the matching set comprises a plurality of balancing weights which are arranged on the base in a fan shape in a mode of surrounding an axis;

a lifting seat which is provided with a combination space which penetrates through the lifting seat up and down and is used for accommodating the matching group and can be detachably placed on the base;

the rotary weight selecting mechanism can be rotatably arranged on the lifting seat;

and a plurality of switching mechanisms which are mutually overlapped and sleeved on the rotary weight selecting mechanism and are used for being combined with the weight group.

2. The kettle bell with fan-shaped counterweight block as claimed in claim 1, wherein: each switching mechanism can be simultaneously combined with two balancing weights which are symmetrical by taking the axis as the center.

3. The kettle bell with fan-shaped counterweight block as claimed in claim 2, wherein: the lifting seat comprises a buffering positioning unit; the rotary weight selecting mechanism comprises a rotary disk, a shaft tube unit and a buffer positioning unit, the rotary disk can be rotatably arranged on the lifting seat, the shaft tube unit penetrates through the rotary disk and the switching mechanism and is used for driving the switching mechanism to select and combine with the balancing weight when the rotary disk rotates, and the buffer positioning unit is arranged below the rotary disk and is used for limiting the rotary disk to rotate to a specific angle.

4. The kettle bell with fan-shaped counterweight block as claimed in claim 3, wherein: each balancing weight of the balancing weight group is provided with a plurality of concave areas which are arranged at intervals along the direction of the axis; each switching mechanism comprises a switching shell, a weight selecting unit group and a switching disc, wherein the weight selecting unit group is arranged in the switching shell and can move outwards in the radial direction by taking the axis as the center when stressed, and the switching disc is fixedly sleeved on the shaft tube unit and can abut against the weight selecting unit group so that the weight selecting unit group extends into the corresponding depressed area of the balancing weight.

5. The kettle bell with fan-shaped counterweight block as claimed in claim 4, wherein: the counterweight blocks are arranged at equal angles, the switching plate of each switching mechanism is positioned between the weight selecting unit groups and is provided with two bulges which extend reversely from the axis, and when the rotary weight selecting mechanism drives the switching plate to rotate at a preset angle, the bulges of the switching plate can be propped against the corresponding weight selecting unit groups.

6. The kettle bell with fan-shaped counterweight block as claimed in claim 5, wherein: the angle of the central angle corresponding to the bulge of the switching disc is gradually reduced, and each bulge is provided with at least one weight selecting part limiting area which can be embedded with the weight selecting unit group which is correspondingly propped against.

7. The kettle bell with fan-shaped counterweight block as claimed in claim 5, wherein: each weight selecting unit group is arranged in a mirror image mode through the axis, each weight selecting unit group is provided with two weight selecting pieces, and the weight selecting pieces are located in the switching shell and can radially protrude into the corresponding depressed areas of the balancing weights.

8. The kettle bell with fan-shaped counterweight block as claimed in claim 4, wherein: the shaft tube unit comprises a hollow tube, penetrates through the rotating disc and the switching disc of the switching mechanism, and is used for driving the switching disc and the rotating disc to rotate synchronously.

9. The kettle bell with fan-shaped counterweight block as claimed in claim 8, wherein: the base comprises a base body and an unlocking block, and the unlocking block protrudes upwards from the base body; the lifting seat comprises a lifting seat shell and a limiting ring plate frame, wherein the limiting ring plate frame is connected to the top side of the lifting seat shell and is provided with a plurality of locking slots; the kettle bell with the fan-shaped balancing weight also comprises a shaft lever lifting mechanism which comprises a shaft lever, can movably penetrate through the hollow pipe and is arranged on the unlocking block; a locking pin, which is assembled on the axle rod and can move between a first position and a second position relative to the hollow tube; and the elastic part is propped between the rotating disk and the top side of the axis rod, and when the lifting seat is separated from the base, the elastic force can enable the locking pin to be clamped in one locking slot.

10. The kettle bell with fan-shaped counterweight block as claimed in claim 1, wherein: the base is provided with a plurality of first limiting parts which are arranged around the axis at intervals; the bottom surface of the balancing weight is provided with a plurality of second limiting parts which are arranged around the axis at intervals.

11. The kettle bell with fan-shaped counterweight block as claimed in claim 1, wherein: the outer surface of the balancing weight is provided with a plurality of third limiting parts which are arranged around the axis at intervals; the combining space of the lifting seat shell is internally provided with a plurality of fourth limiting parts which are arranged around the axis at intervals.