Fitness equipment conversion device

Abstract

The utility model provides a fitness equipment conversion device. The fitness equipment conversion device comprises a barbell rod; the handheld part is arranged on the rod component in a sleeving manner and can rotate relative to the rod component; and the at least one adapter is detachably connected with one end of the barbell rod and is used for being connected with fitness equipment.

Description

Technical Field

[0001] The utility model relates to the field of fitness equipment, and particularly to a conversion device for fitness equipment. Background Art

[0002] Home fitness has become an option for fitness enthusiasts, but fitness equipment is heavy and expensive. Many users are accustomed to various fitness exercise methods such as dumbbells, barbells, and kettlebells, but it is very inconvenient to purchase all three types of equipment at the same time. Converters have emerged on the market to connect and convert dumbbells into barbells and kettlebells, enabling multiple exercise methods with just one piece of equipment.

[0003] Existing fitness equipment conversion devices include a rod member and counterweights locked at both ends of the rod member. When the weights of the counterweights are not evenly distributed in a circular pattern around the axis of the rod member, reverse torque will be generated during bicep curls with the barbell, squeezing the hands of the user gripping the rod member and easily causing poor grip and hand discomfort. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fitness equipment conversion device with a rotatable handgrip.

[0005] The present disclosure provides a fitness equipment conversion device, which includes: a barbell rod; and a handgrip, the handgrip is sleeved on the barbell rod and can rotate relative to the barbell rod; at least one adapter, the at least one adapter is detachably connected to one end of the barbell rod for connecting with fitness equipment.

[0006] Preferably, the handgrip includes a rotating tube and a rotating connecting piece, the rotating connecting piece is sleeved between the rotating tube and the barbell rod and is connected to the rotating tube, so that the rotating tube and the barbell rod are rotationally connected through the rotating connecting piece.

[0007] Preferably, the rotating connecting piece is fixedly connected to the rotating tube and rotationally connected to the barbell rod, or the rotating connecting piece is rotationally connected to both the rotating tube and the barbell rod.

[0008] Preferably, the handgrip further includes a fixing piece, the fixing piece is inserted into the rotating tube, and the fixing piece can rotate relative to the rotating tube to adjust the position of the fixing piece relative to the rotating tube. When the bottom of the fixing piece contacts the barbell rod, the rotating tube is fixed relative to the barbell rod, so that the handgrip does not rotate.

[0009] Preferably, the hand-held part further includes at least two limiting rings and a sponge disposed between the two limiting rings. The limiting rings are sleeved and connected to one end of the rotating tube, and two ends of the sponge are in contact with the two limiting rings, so that the limiting rings play an axial limiting role on the sponge.

[0010] Preferably, the fixing member includes a first fixing member and a second fixing member which are oppositely arranged. A first connection hole is formed in the limiting ring, and a second connection hole matching the first connection hole is formed in the rotating tube. The first fixing member and the second fixing member pass through the first connection hole and the second connection hole, so that the limiting ring and the rotating member are connected together through the fixing member.

[0011] Preferably, a spacer tube is sleeved on the barbell bar, and an end of the spacer tube is in contact with the limiting ring, so that the spacer tube plays an axial limiting role on the rotating tube. A sponge pad is disposed outside the spacer tube, and an opening is formed on one side of the sponge pad.

[0012] Preferably, the barbell bar includes a first cross bar, a second cross bar, and a connecting rod for connecting the first cross bar and the second cross bar. The first cross bar and the second cross bar are located on two sides of the connecting rod and are detachably connected to the connecting rod. Insertion parts are formed at ends of the first cross bar and the second cross bar away from the connecting rod, and the insertion parts are fixedly inserted into the connecting head.

[0013] Preferably, the adapter includes a first locking member, a second locking member which are oppositely arranged, and a rotating shaft connecting the first locking member and the second locking member. One ends of the first locking member and the second locking member are rotatably connected relative to the rotating shaft. A fastening member is disposed on the second locking member, and the fastening member is locked with the first locking member.

[0014] Preferably, a first positioning hole is formed in the first locking member, and a second positioning hole is formed in the second locking member. The fastening member includes a rotating head located on a side of the second locking member away from the first locking member, a fastening screw with one end connected to the rotating head and the other end inserted into the second positioning hole, and a limiting member sleeved on the fastening screw. The fastening member sequentially passes through the second positioning hole, a limiting hole of the barbell bar, and the first positioning hole, so that the barbell bar is connected to the adapter.

[0015] Preferably, the first locking member is formed with a first engaging groove, and the second locking member is formed with a second engaging groove. Engaging blocks are provided on both sides of the first engaging groove and the second engaging groove, and the engaging blocks protrude from the engaging grooves. When the ends of the first locking member and the second locking member away from the rotating shaft come into contact, an engaging hole is formed between the first engaging groove and the second engaging groove for receiving the counterweight member.

[0016] Preferably, the first locking member is formed with a first locking groove, and the second locking member is formed with a second locking groove. When the ends of the first locking member and the second locking member away from the rotating shaft come into contact, a locking hole is formed between the first locking groove and the second locking groove for receiving the insertion portion.

[0017] Preferably, the fitness equipment conversion device further includes a grip for the user to hold. The grip includes an insertion portion that can be inserted into the adapter. The insertion portion is provided with through adapter holes in at least two directions. The adapter holes in one direction are aligned with the first positioning holes, and the fastening screws pass through the second positioning holes, the adapter holes and the first positioning holes, so that the grip and the adapter are fixedly connected together.

[0018] As described above, the fitness equipment conversion device has a hand-held portion. When the user holds the hand-held portion with both hands and curls the fitness equipment conversion device, the counterweight member drives the rod member to rotate, and the rod member rotates relative to the hand-held portion, so that the reverse torque is not transmitted to the hand, avoiding adverse effects on the hand and improving the comfort of the user. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 is a perspective structural view of the fitness equipment conversion device involved in the present invention.

[0021] Figure 2 is a perspective structural view of the rod member involved in the present invention.

[0022] Figure 3 is an exploded structural view of the hand-held portion involved in the present invention.

[0023] Figure 4 is Figure 1 a cross-sectional view of part A-A in

[0024] Figure 5 It is a partial sectional view of the rod component involved in the second embodiment of the present utility model.

[0025] Figure 6 It is an exploded structural view of the rod component involved in the present utility model.

[0026] Figure 7 It is an exploded structural view of the cross bar and the connecting rod involved in the present utility model.

[0027] Figure 8 It is a three-dimensional structural view of the adapter in the closed state involved in the present utility model.

[0028] Figure 9 It is a three-dimensional structural view of the adapter in the unfolded state involved in the present utility model.

[0029] Figure 10 It is an exploded structural view of the adapter involved in the present utility model.

[0030] Figure 11 It is a sectional view of the adapter involved in the present utility model.

[0031] Figure 12 It is a three-dimensional structural view of the kettlebell converter involved in the present utility model.

[0032] Description of main element symbols

[0033] 100 Fitness equipment conversion device

[0034] 10 Rod component

[0035] 11 First cross bar

[0036] 111 First connection part

[0037] 1111 First connecting piece

[0038] 113 Insertion part

[0039] 1131 Limit hole

[0040] 1133 Auxiliary positioning hole

[0041] 13 Second cross bar

[0042] 15 Connecting rod

[0043] 151 Second connection part

[0044] 1511 Second connecting piece

[0045] 155 Sponge pad

[0046] 1551 Opening

[0047] 157 Spacer Tube

[0048] 17 Handheld Part

[0049] 171 Rotating Tube

[0050] 1711 First Connection Hole

[0051] 1713 Foam

[0052] 173 Limiting Ring

[0053] 1731 Second Connection Hole

[0054] 175 First Fixing Part

[0055] 176 Second Fixing Part

[0056] 177 Rotating Connector

[0057] 30 Adapter

[0058] 31 First Locking Part

[0059] 310 Locking Hole

[0060] 311 First Locking Groove

[0061] 3111 Locking Block

[0062] 3113 Partition

[0063] 3115 Arc-shaped Notch

[0064] 313 First Locking Groove

[0065] 3131 First Positioning Hole

[0066] 3132 Threaded Part

[0067] 3133 Auxiliary Positioning Rod

[0068] 33 Second Locking Part

[0069] 330 Locking Hole

[0070] 331 Second Locking Groove

[0071] 333 Second Locking Groove

[0072] 37 Fastener

[0073] 371 Fastening Screw

[0074] 373 Limiting Part

[0075] 375 Rotating Head

[0076] 377 Second positioning hole

[0077] 35 Rotating shaft

[0078] 50 Counterweight

[0079] 60 Grip

[0080] 61 Grip hole

[0081] 63 Adapter hole

[0082] 200 Kettlebell converter Specific implementation manners

[0083] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0084] Please refer to Figure 1 and Figure 12 . The fitness equipment conversion device 100 provided by the present utility model converts the counterweight 50 into a barbell or a kettlebell through the adapter 30, enriching the application of fitness equipment. The fitness equipment conversion device 100 includes a rod member 10 and adapters 30 connected to both ends of the rod member 10.

[0085] Please refer to Figure 2 and Figure 3 . To solve the problem that when the weight of the counterweight 50 is not completely distributed in a circular pattern around the axis of the rod member 10, reverse torque will be generated during bicep curls of the barbell, squeezing the hands of the user holding the rod member 10 and easily causing poor grasping and hand discomfort. The rod member 10 includes a barbell rod, and a handgrip portion 17 is sleeved on the barbell rod. It can be understood that the handgrip portion 17 can be sleeved on the entire barbell rod and cover the entire barbell rod, or the handgrip portion 17 can be sleeved on one end or opposite ends of the barbell rod. In this embodiment, handgrip portions 17 are provided at both ends of the rod member 10, and the two handgrip portions 17 can rotate relative to the barbell rod of the rod member 10. The description is based on the structure of the handgrip portion 17 installed at one end of the rod member 10. The handgrip portion 17 includes two rotating connectors 177 provided at both ends inside the handgrip portion 17, a rotating tube 171 movably sleeved on the barbell rod and covering and fixedly arranged on the two rotating connectors 177, two limiting rings 173, a first fixing member 175 and a second fixing member 176 fixedly installed at both ends of the rotating tube 171.

[0086] Specifically, the barbell bar and the rotating tube 171 are rotatably arranged at intervals through two rotating connectors 177, that is, a rotating space (not shown in the figure) is formed at intervals between the outer wall of the barbell bar and the inner wall of the rotating tube 171 by the two rotating connectors 177, so that the rotating tube 171 can rotate relative to the barbell bar. The rod member 10 is connected to the inner ring of the rotating connector 177, and the rotating tube 171 is connected to the outer ring of the rotating connector 177, so that the rotating tube 171 rotates relative to the barbell bar through the rotating connector 177. The limiting ring 173 is sleeved on one end of the rotating tube 171 and fixedly connected. A first connection hole 1711 is provided on the rotating tube 171, and a second connection hole 1731 is provided on the limiting ring 173. The first fixing member 175 and the second fixing member 176 pass through the first connection hole 1711 and the second connection hole 1731, so that the limiting ring 173 is fixedly connected to the rotating tube 171. The handgrip 17 further includes a foam 1713 located on the outermost layer and in direct contact with the hand. The foam 1713 is a soft material with a relatively large friction force, thereby improving the comfort of the hand grip. The structure of the handgrip 17 installed at the other end of the rod member 10 is the same as that of the handgrip 17 installed at one end of the rod member 10. When in use, the user's hands are respectively held on the handgrips 17 at both ends of the rod member 10.

[0087] In this embodiment, the rotating connector 177 is set as a collar. The rotating connector 177 is made of metal and is fixedly connected to the rotating tube 171 by welding. Specifically, the rotating connector 177 is fixedly connected to the rotating tube 171, and the rotating connector 177 is rotatably connected to the barbell bar. The rotating connector 177 rotates with the rotation of the rotating tube 171, while the barbell bar does not rotate, so that the rotating tube 171 rotates relative to the barbell bar through the rotating connector 177. The setting of the rotating connector 177 can reduce the contact area between the rotating tube 171 and the barbell bar, thereby making the rotation smoother. The rotating connector 177 and the rotating tube 171 are fixedly connected, and the integral molding reduces the cost and is easy to process. It can be understood that the material of the collar in this embodiment can be a wear-resistant hard material such as plastic. It can be understood that the rotating tube 171 and the collar can be connected by clamping, bonding and other methods.

[0088] In the second embodiment, the rotating connector 177 is set as a bearing. The rotating connector 177 is rotatably connected to the rotating tube 171, and the rotating connector 177 is rotatably connected to the barbell bar. The rotating connector 177 rotates with the rotation of the rotating tube 171, while the barbell bar does not rotate, so that the rotating tube 171 rotates relative to the barbell bar through the rotating connector 177. It can be understood that in the second embodiment, the rotating connector 177 can rotate relative to the rotating tube 171.

[0089] In the third embodiment, the rotating connecting member 177 is not provided, and the rotating tube 171 is directly sleeved on the barbell rod, and there is a gap between the rotating tube 171 and the barbell rod 177. When the rotating tube 171 rotates, the barbell rod does not rotate, so that the rotating tube 171 rotates relative to the barbell rod through the rotating connecting member 177.

[0090] The above embodiments are used to achieve the relative rotation between the rotating tube 171 and the barbell rod. It can be understood that the implementation manner is not limited to the above embodiments. Please refer to Figure 4 and Figure 5 , the rod member 10 includes a barbell rod located in the innermost part, and a rotating connecting member 177, a rotating tube 171, a limiting ring 173 and a sponge 1713 sleeved from the inside to the outside in sequence.

[0091] The first fixing member 175 and the second fixing member 176 are relatively inserted into both sides of the handgrip portion 17. The first fixing member 175 is preferably a screw member, and the second fixing member 176 is preferably a cylindrical fixing member. In this embodiment, the second fixing member 176 is rotatably inserted into the first connection hole 1711 and the second connection hole 1731 on one side of the handgrip portion 17 until the bottom of the second fixing member 176 abuts against the outer surface of the barbell rod. The inner wall of the first connection hole 1711 near the second fixing member 176 is provided with threads, and the second fixing member 176 can be rotated through the threads to adjust its position in the handgrip portion 17. The first fixing member 175 is rotatably inserted into the first connection hole 1711 and the second connection hole 1731 on the opposite side of the handgrip portion 17. The inner wall of the second connection hole 1731 near the first fixing member 175 is provided with threads, and the first fixing member 175 can be rotated through the threads to adjust its position in the handgrip portion 17. It can be understood that as long as the rotation effect can be achieved, the position of the threads can be at any position of the first connection hole 1711 and the second connection hole 1731. As Figure 4 shown, in this embodiment, when the rotation of the rotating tube 171 is not required, rotate the first fixing member 175 until the bottom of the first fixing member 175 abuts against the outer surface of the barbell rod. At this time, the first fixing member 175 and the second fixing member 176 relatively abut against both sides of the barbell rod, so that the rotating tube 171 cannot rotate relative to the barbell rod. As Figure 5 shown, in another embodiment, when the rotation of the rotating tube 171 is required, rotate the first fixing member 175 until the bottom of the first fixing member 175 is separated from the outer surface of the barbell rod. At this time, the first fixing member 175 and the barbell rod are spaced apart, so that the rotating tube 171 cannot rotate relative to the barbell rod. In this embodiment, only by adjusting the first fixing member 175 can it be controlled whether the rotating tube 171 rotates. It can be understood that the fitness equipment conversion device 100 can also control whether the rotating tube 171 rotates by adjusting the second fixing member 176 or simultaneously adjusting the first fixing member 175 and the second fixing member 176.

[0092] A spacer tube 157 is sleeved on the outer wall of the connecting rod 15. Both ends of the spacer tube 157 are in contact with the limiting rings 173 and are located between the two rotating tubes 171. Thus, the spacer tube 173 plays an axial limiting role for the two rotating tubes 171. Specifically, the protruding degree of the spacer tube 157 is the same as that of the limiting rings 173. One side of the limiting ring 173 close to the adapter 30 is limited by the adapter 30, and the other side is in contact with the foam 1713. One side of the limiting ring 173 close to the connecting rod 15 is in contact with the foam 1713, and the other side is limited by the spacer tube 157. The foam 1713 is arranged between the two limiting rings 173 at both ends of the rotating tube 171. Both ends of the foam 1713 are respectively limited by the two limiting rings. The two limiting rings 173 play an axial limiting role for the foam 1713, so that the foam 1713 will not move axially. One end of the limiting ring 173 is limited by the spacer tube 157, and the limiting ring 173 is fixedly connected to the rotating tube 171. Thus, the rotating tube 171 can only rotate relative to the rod member 10 and cannot move axially. When the user holds the gripping part 17 with both hands and bends the barbell, the counterweight 50 drives the rod member 10 to rotate. The rod member 10 rotates relative to the gripping part 17 through the rotating connecting piece 177, so that the reverse torque will not be transmitted to the hand, avoiding adverse effects on the hand.

[0093] Please refer to Figure 6 and Figure 7 As shown in, the barbell bar includes a first cross bar 11, a connecting rod 15 and a second cross bar 13 which are connected in sequence. Specifically, the first cross bar 11 is in the shape of a cylindrical rod. One end of the first cross bar 11 forms an insertion part 113, and the insertion part 113 is inserted into the adapter 30. The upper half of the other end of the first cross bar 11 extends to form a first connecting part 111. The first connecting part 111 is provided with a first connecting piece 1111, on which at least one screw hole (not shown in the figure) is provided. The lower half parts of both ends of the connecting rod 15 protrude and extend to form two second connecting parts 151. The second connecting parts 151 are provided with second connecting pieces 1511, on which screw holes (not shown in the figure) identical to those of the first connecting piece 1111 are provided. The lengths of the first connecting part 111 and the second connecting part 151 extending are the same. After the first connecting part 111 and the second connecting part 151 are overlapped, the side wall of the first cross bar 11 is aligned with the side wall of the connecting rod 15. Screws sequentially penetrate through the first connecting part 111, the first connecting piece 1111, the second connecting piece 1511 and the second connecting part 151. Thus, one end of the first cross bar 11 is fixedly connected to one end of the connecting rod 15. In this embodiment, the cross sections of the first connecting part 111 and the second connecting part 151 are semi-circular, and the first connecting piece 1111 and the second connecting piece 1511 are in the shape of an L. It can be understood that the cross sections of the first connecting part 111 and the second connecting part 151 can be of any shape, and the first connecting piece 1111 and the second connecting piece 1511 can be of any shape.

[0094] The structure of the second crossbar 13 and its cooperation relationship with the connecting rod 15 are the same as those of the first crossbar 11. Screws sequentially penetrate through the first connecting portion 111 of the second crossbar 13, the first connecting member 1111 of the second crossbar 13, the other second connecting member 1511 of the connecting rod 15, and the second connecting portion 151, so that one end of the second crossbar 13 is fixedly connected to the other end of the connecting rod 15. The first crossbar 11, the connecting rod 15, and the second crossbar 13 are detachably spliced together to form a barbell bar. Therefore, when carrying, the first crossbar 11, the connecting rod 15, and the second crossbar 13 are disassembled and carried after being stored. That is, the space occupied by the first crossbar 11, the connecting rod 15, and the second crossbar 13 after storage is small, so the volume of the packaging box is also small, and thus it is convenient to carry.

[0095] The outermost layer of the connecting rod 15 is a sponge pad 155 that directly contacts the user's shoulder. A slender opening 1551 is formed on one side of the sponge pad 155, so that the sponge pad 155 can be put on and detached from the spacer tube 157 through the opening 1551.

[0096] The rod member 10 can be at least disassembled and separated into the first crossbar 11, the second crossbar 13, the connecting rod 15, the rotating tube 171, the spacer tube 157, the foam 1713, the sponge pad 155, the first connecting member 1111, and the second connecting member 1511. The detachable design reduces the packaging volume of the rod member 10, thereby reducing the transportation cost.

[0097] Please refer to Figures 8 - 11 , one end of the adapter 30 is connected to one end of the rod member 10. The adapter 30 is generally in a T shape and includes a first locking member 31 and a second locking member 33 that are oppositely arranged and also in a T shape, a rotating shaft 35 for connecting the first locking member 31 and the second locking member 33, and a fastener 37 provided on the second locking member 33. One ends of the first locking member 31 and the second locking member 33 are rotatably connected relative to the rotating shaft 35.

[0098] A first engaging groove 311 is recessed at one end of the first locking member 31 close to the rotating shaft 35. The first engaging groove 311 is divided into three parts by two partition plates 3113. The outer walls of the two first locking members 31 and the partition plates 3113 define a receiving space, and a engaging block 3111 is engaged in each of the receiving spaces. An arc-shaped notch 3115 is formed on the outer wall corresponding to the first engaging groove 311. The engaging block 3111 is a block with a flat bottom and an arc-shaped top. The arc-shaped top of the engaging block 3111 protrudes from the arc-shaped notch 3115 of the first engaging groove.

[0099] The second locking member 33 is provided with a second engaging groove 331 at one end near the rotating shaft 35. The structure of the second engaging groove 331 is the same as that of the first engaging groove 311, including a partition 3113 and an engaging block 3111. When the first locking member 31 and the second locking member 33 rotate toward each other, the first locking member 31 and the second locking member 33 contact each other, and the two arc-shaped notches 3115 on the same side form an engaging hole 310. The size of the engaging hole 310 increases as the distance between the two arc-shaped notches 3115 increases, and is used to accommodate the rod of the counterweight 50. When the cross-sectional diameter of the rod of the counterweight 50 is smaller than the minimum diameter of the engaging hole, the protruding arc-shaped top surface of the engaging block 3111 can engage the rod of the counterweight 50 with a smaller cross-sectional diameter, so that the adapter 30 is adapted to counterweights 50 of different sizes.

[0100] The first locking member 31 has a first locking groove 313 formed at one end close to the rod member 10, and the width of the first locking groove 313 is smaller than the width of the first engaging groove 311. A first positioning hole 3131 is formed in the middle of the first locking groove 313, and a threaded portion 3132 is provided on the inner wall of the first positioning hole 3131.

[0101] A second locking groove 333 is formed at one end of the second locking member 33 close to the rod member 10, and the shape of the second locking groove 333 is the same as that of the first locking groove 311. A second positioning hole 377 opposite to the first positioning hole 3131 is formed in the middle of the second locking groove 333.

[0102] The fastener 37 is arranged on the second locking member 33, and the fastener 37 includes a fastening screw 371, a stopper 373 and a rotating head 375. Specifically, the rotating head 375 is located on the outer side of the second locking member 33 away from the first locking member 31, and the rotating head 375 is provided with a plurality of recesses, and the bottom wall of the recess is provided with a plurality of raised lines, so as to facilitate the rotation of the hand. One end of the fastening screw 371 connected to the rotating head 375 is located outside the second locking member 33, and the other end of the fastening screw 371 passes through the second positioning hole 377 of the second locking member 33 and is locked with the first locking member 31. The stopper 373 is sleeved on the fastening screw 371 along the other end of the fastening screw 371 from the inner wall of the second locking member 33 until it contacts the inner wall of the second locking member 33. The diameters of the rotating head 375 and the limiting member 373 are larger than the diameters of the second positioning hole 377 and the fastening screw 371, so that the rotating head 375 limits the fastening screw 371 upward, and the limiting member 373 limits the fastening screw 371 downward, so that when in an idle state, the fastening screw 371 will not be separated from the second positioning hole 377 and lost. In this embodiment, the limiting member 373 is a nut that matches the fastening screw. It can be understood that the limiting member 373 can also be other components that play a limiting role.

[0103] When the first locking groove 313 and the second locking groove 333 are brought together and in contact with each other, a locking hole 330 is formed on the side away from the rotating shaft 35. The locking hole 330 houses the insertion portions 113 of the first cross bar 11 and the second cross bar 13. A plurality of through limiting holes 1131 and a plurality of auxiliary positioning holes 1133 are provided on the insertion portion 113. The fastening screw 371 sequentially passes through the second positioning hole 377, the limiting hole 1131 and is inserted into the first positioning hole 3131, so that the other ends of the second locking member 33 and the first locking member 31 away from the rotating shaft 35 are connected together, and the insertion portion 113 of the rod member 10 is locked through the locking hole 330. An auxiliary positioning rod 3133 is further provided on the first locking member 31. The auxiliary positioning rod 3133 passes through the auxiliary positioning hole 1133 of the insertion portion 113 to play a role in auxiliary positioning.

[0104] The fastening screw 371 can be rotated to different positions of the threaded portion 3132 of the first positioning hole 3131, so that the fastening screw 371 enters the first positioning hole 3131 at different depths. The maximum diameter of the rod portion of the counterweight 50 that the adapter 30 can engage depends on the depth of the fastening screw 371 entering the first positioning hole 3131. When the bottom end of the fastening screw 371 engages with the first turn of the thread of the threaded portion 3132, the diameter of the engaging hole 310 is the maximum diameter of the rod portion that can be engaged. When the two opposite engaging blocks 3111 are in contact, the maximum distance between the two engaging blocks 3111 is the minimum diameter of the rod portion that can be engaged.

[0105] The fitness equipment conversion device 100 has been improved in at least the following aspects to achieve a better user experience:

[0106] First, the fitness equipment conversion device 100 is provided with a hand grip portion 17. When the user holds the fitness equipment conversion device 100 with both hands and curls it, the counterweight 50 drives the rod member 10 to rotate. The rod member 10 rotates relative to the hand grip portion 17 through the rotating connection member 177, so that the reverse torque is not transmitted to the hand, avoiding adverse effects on the hand.

[0107] Second, the limiting ring 173 of the hand grip portion 17. The first fixing member 175 of the limiting ring 173 can be rotated and adjusted to enter the hand grip portion 17 at different depths, while the second fixing member 176 of the limiting ring 173 always abuts against the barbell rod. When the user does not need to rotate the rotating tube 171, the first fixing member 175 is made to abut against the barbell rod, so that both sides of the barbell rod are abutted by the first fixing member 175 and the second fixing member 176 and the rotating tube 171 does not rotate relative to the barbell rod. When the user needs to rotate the rotating tube 171, the first fixing member 175 is made to disengage from the barbell rod, so that the rotating tube 171 can rotate relative to the barbell rod, and two modes can be simply switched through the first fixing member 175.

[0108] Third, the rod member 10 is of a detachable structure. The rod member 10 can be at least detachably separated into a first cross bar 11, a second cross bar 13, a connecting rod 15, a rotating tube 171, a spacer tube 157, a foam 1713, a sponge pad 155, a first connecting member 1111 and a second connecting member 1511. The detachable design reduces the packaging volume of the rod member 10, thus reducing the transportation cost.

[0109] Fourth, the fastener 37 of the adapter 30 is provided with a limiting member 373 to limit the fastening screw 371, so that the fastener 37 will not be lost due to detaching from the second positioning hole 377 in the open state or the idle state.

[0110] Please refer to Figure 12 , after the rod member 10 of the fitness equipment conversion device 100 is detached from the adapter 30, the locking hole 330 of the adapter 30 can lock the grip 60 to form a kettlebell converter 200. The grip 60 includes a grip hole 61 that provides a holding space for the user's hand and an insertion portion that is inserted into the locking hole 330. At least two through transfer holes 63 are provided in different directions of the insertion portion, and the transfer holes 63 are aligned with the first positioning holes 3131. The fastening screws 371 sequentially pass through the second positioning holes 377, the transfer holes 63 and the first positioning holes 3131, so that the adapter 30 and the grip 60 are connected together. Let the fastening screw 371 disengage from the first transfer hole 63, rotate the orientation of the grip 60 so that the second transfer hole 63 is aligned with the first positioning hole 3131, and the fastening screws 371 sequentially pass through the second positioning holes 377, the transfer holes 63 and the first positioning holes 3131, so that the adapter 30 and the grip 60 are connected together. The above changes in the orientation of the grip form two holding methods of the kettlebell converter 200.

[0111] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A fitness equipment conversion device, characterized in that, It includes: A barbell bar; And A handgrip portion, the handgrip portion includes a rotating tube, the rotating tube is sleeved on the barbell bar, and the rotating tube can rotate relative to the barbell bar; At least one adapter, the at least one adapter is detachably connected to one end of the barbell bar for connecting with fitness equipment.

2. The fitness equipment conversion device according to claim 1, wherein The handgrip portion further includes a rotating connecting piece, The rotating connecting piece is sleeved between the rotating tube and the barbell bar and is connected to the rotating tube, so that the rotating tube and the barbell bar are rotationally connected through the rotating connecting piece.

3. The fitness equipment conversion device according to claim 2, wherein The rotating connecting piece is fixedly connected to the rotating tube and is rotationally connected to the barbell bar.

4. The fitness equipment conversion device according to claim 2, wherein The handgrip portion further includes a fixing piece, the fixing piece is inserted into the rotating tube, The fixing piece can rotate relative to the rotating tube, so as to adjust the position of the fixing piece relative to the rotating tube, When the bottom of the fixing piece contacts the barbell bar, the rotating tube is fixed relative to the barbell bar, so that the handgrip portion does not rotate.

5. The fitness equipment conversion device according to claim 4, wherein The handgrip portion further includes at least two limiting rings and a sponge disposed between the two limiting rings, the limiting rings are sleeved and connected to one end of the rotating tube, Both ends of the sponge are in contact with the two limiting rings, so that the limiting rings play an axial limiting role on the sponge.

6. The fitness equipment conversion device according to claim 5, wherein The fixing piece includes a first fixing piece and a second fixing piece arranged oppositely, A first connection hole is formed on the limiting ring, a second connection hole matching the first connection hole is formed on the rotating tube, and the first fixing piece and the second fixing piece pass through the first connection hole and the second connection hole, so that the limiting ring and the rotating piece are connected together through the fixing piece.

7. The fitness equipment conversion device according to claim 5, wherein A spacer tube is sleeved on the barbell bar, and the end of the spacer tube contacts the limiting ring, so that the spacer tube plays an axial limiting role on the rotating tube, A sponge pad is arranged outside the spacer tube, and an opening is formed on one side of the sponge pad.

8. The fitness equipment conversion device according to claim 2, wherein The barbell bar includes a first cross bar, a second cross bar and a connecting rod for connecting the first cross bar and the second cross bar, The first cross bar and the second cross bar are located on both sides of the connecting rod and are detachably connected to the connecting rod, Insertion portions are formed at the ends of the first cross bar and the second cross bar away from the connecting rod, and the insertion portions are fixedly inserted into the connecting head.

9. The fitness equipment conversion device according to claim 8, wherein The adapter includes a first locking member, a second locking member arranged oppositely and a rotating shaft connecting the first locking member and the second locking member, One end of the first locking member and one end of the second locking member are rotatably connected relative to the rotating shaft. A fastener is provided on the second locking member, and the fastener is locked together with the first locking member.

10. The fitness equipment conversion device according to claim 9, wherein The first locking member is provided with a first positioning hole, and the second locking member is provided with a second positioning hole. The fastener includes a rotating head located on a side of the second locking member away from the first locking member, a fastening screw with one end connected to the rotating head and the other end inserted into the second positioning hole, and a limiting member sleeved on the fastening screw. The fastener sequentially passes through the second positioning hole, the limiting hole of the barbell rod, and the first positioning hole, so that the barbell rod is connected to the adapter head.

11. The fitness equipment conversion device according to claim 10, wherein The first locking member forms a first engaging groove, and the second locking member forms a second engaging groove. Engaging blocks are provided on both sides of the first engaging groove and the second engaging groove, and the engaging blocks protrude from the engaging groove. When one end of the first locking member and the second locking member away from the rotating shaft come into contact, a locking hole is formed between the first engaging groove and the second engaging groove for receiving a counterweight member.

12. The fitness equipment conversion device according to claim 11, wherein The first locking member forms a first locking groove, and a second locking groove is formed at the second locking member. When one end of the first locking member and the second locking member away from the rotating shaft come into contact, a locking hole is formed between the first locking groove and the second locking groove for receiving the insertion portion.

13. The fitness equipment conversion device according to claim 12, wherein The fitness equipment conversion device further includes a grip for a user to hold. The grip includes an insertion portion that can be inserted into the adapter head. The insertion portion is provided with through adapter holes in at least two directions. The adapter holes in one direction are aligned with the first positioning hole, and the fastening screw passes through the second positioning hole, the adapter hole, and the first positioning hole, so that the grip and the adapter head are fixedly connected together.

Images