CN214158386U

CN214158386U - Weight training device

Info

Publication number: CN214158386U
Application number: CN202022594263.3U
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: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-09-10
Anticipated expiration: 2030-11-11

Abstract

The utility model discloses a weight training device contains a base unit, a magnetism and inhales unit, a counter weight unit and the unit in command. The handle unit comprises a grab handle, two anti-rotation modules sleeved at the left end and the right end of the grab handle, two counterweight adjusting modules and two counterweight wheels rotatably and respectively installed on the counterweight adjusting modules, wherein each counterweight adjusting module is provided with a plurality of embedded clamping components. Each anti-rotation module is provided with a magnetic fastener which can be detachably inserted in the corresponding counterweight wheel, and when the mounting seat is arranged on the base unit, the magnetic fastener can be driven by the magnetic force of the magnetic part to separate from the counterweight wheel, so that the inserting component can be driven to rotate to adjust the counterweight. The magnetic part of the utility model is driven by magnetic force to actuate, thereby avoiding the abrasion and deformation caused by long-term use.

Description

Weight training device

Technical Field

The present invention relates to a training device for promoting or strengthening muscles or joints of a human body, and more particularly to a weight training device.

Background

A weight training device for training the weight of a person in a conventional way, as shown in Chinese patents 201922030686.X, 201921038007.7, etc., comprises a base, a plurality of weights arranged on the base, a handle, two weight adjusting units respectively arranged at two ends of the handle, and two rotation preventing units. The base is provided with two lugs which are distributed at intervals. Each weight adjusting unit has a plurality of engaging members corresponding to the respective weights. The rotation preventing units are respectively arranged at two end parts of the handle and are respectively positioned at two opposite sides of the counterweight adjusting unit.

The handle can be driven to drive each embedded clamping component to be embedded into or separated from the corresponding balancing weight, so that a user can adjust the quantity of the embedded clamping balancing weights according to the requirement. When the weight training device is not placed on the base, the anti-rotation unit can prevent the handle from being driven to rotate and drive the card embedding assembly. Therefore, the arrangement of the rotation-preventing unit can avoid the situation that the weight block falls off due to the misoperation of the handle when the weight training device is used.

However, since the anti-rotation units are unlocked by contacting and engaging with the bumps, the anti-rotation units are easily worn or deformed after long-term use, and the anti-rotation units cannot operate normally.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is an object of the present invention to provide a weight training device that overcomes at least the shortcomings of the prior art.

Therefore, the weight training device of the present invention comprises a base unit, a magnetic unit, a weight unit, and a handle unit. The magnetic unit comprises two magnetic parts which are arranged on the base unit at left and right intervals. The counterweight unit comprises two counterweight groups which are arranged on the base unit at left and right intervals, and each counterweight group is provided with a plurality of counterweight blocks which are separably arranged on the base unit.

The handle unit comprises a grab handle extending left and right, two anti-rotation modules sleeved at the left and right ends of the grab handle and used for being incapable of rotating and detachably arranged on the base unit, two counterweight adjusting modules respectively arranged on the anti-rotation modules, and two counterweight wheels rotatably arranged on the counterweight adjusting modules respectively. Each counterweight adjusting module is provided with a plurality of embedded components which are sleeved and fixed on the grab handle and respectively correspond to the counterweight blocks of the respective counterweight block group.

The inserting component and the corresponding weight wheel can be driven synchronously to make each inserting component engage or disengage with the corresponding weight block. Each anti-rotation module is provided with a mounting seat and a magnetic fastener, wherein the mounting seat is used for being arranged on the base unit in a downward mode in a non-rotatable mode, the magnetic fastener is arranged on the mounting seat and is used for being detachably inserted into the corresponding counterweight wheel, and when the mounting seat is arranged on the base unit, the magnetic fasteners are driven by the magnetic force of the magnetic attraction pieces to be separated from the counterweight wheel respectively.

Preferably, the handle extends left and right and is inserted into the counterweight adjusting module at two ends thereof, and can be rotated to drive each inserting and clamping component of each counterweight adjusting module to be clamped or separated from the corresponding counterweight block, and coaxially drive the counterweight wheel to rotate.

Preferably, the handle has a holding portion disposed between the anti-rotation modules, two embedding portions rotatably inserted into the counterweight adjustment module, and two driving rotation discs rotatably disposed on the counterweight adjustment module and connected to the embedding portions, respectively, each embedding portion being driven by the corresponding driving rotation disc to drive the clamping component to engage with or disengage from the corresponding counterweight block, and coaxially driving the corresponding counterweight wheel to rotate.

Preferably, each of the weight wheels has a plurality of insertion holes spaced along an outer circumferential surface thereof for the magnetic fasteners to be inserted upward.

Preferably, each anti-rotation module further has a first elastic member disposed between the mounting base and the magnetic fastener, and the first elastic member constantly provides an elastic force for the magnetic fastener to be inserted into one of the insertion holes.

Preferably, the base unit further comprises two safety buckles arranged on the base unit at left and right intervals, each mounting seat is provided with a shell provided with a left through hole and a right through hole, and a buckle component which is arranged on the shell and abuts against the corresponding weight wheel, and the buckle component can be driven by the rotation of the weight wheel to change between a locking state of protruding out of the through holes and buckling the corresponding safety buckles and an unlocking state of retracting into the through holes and separating from the corresponding safety buckles.

Preferably, each of the fastening assemblies has a fixing member fixedly disposed on the corresponding housing, a fastening member slidably disposed between the fixing member and the housing in a left-right direction, and a second elastic member disposed between the housing and the fastening member, the fixing member has an opening laterally exposed to the outside for the fastening member to abut against the corresponding weight wheel, the fastening member is rotatably driven by the weight wheel, and changes between the locked state where the fastening member passes through the corresponding through hole and is fastened to the corresponding safety buckle and the unlocked state where the fastening member retracts into the through hole and disengages from the safety buckle, and the second elastic member constantly provides an elastic restoring force for the fastening member to retract into the corresponding through hole.

Preferably, each of the weight wheels has an end surface facing the corresponding fastener assembly, the end surface has a plurality of concave surface portions radially penetrating and concavely disposed on the end surface and distributed at intervals around the axis of the end surface, and a plurality of convex surface portions respectively disposed between two adjacent concave surface portions, and each of the weight wheels can be driven by the handle to alternately abut against the corresponding fastener in the left-right lateral direction of the convex surface portion or the concave surface portion.

Preferably, each safety buckle has a protruding portion protruding upward from the base unit, and a stopping portion extending laterally outward from the protruding portion, and the buckling members can be driven to respectively protrude out of the through holes and abut against the stopping portion upward.

Preferably, the base unit includes two base bodies disposed at an interval, and the magnetic attraction member, the weight set, and the safety buckle are all disposed on the base bodies.

The utility model also discloses a weight trainer contains:

a base unit;

the magnetic unit comprises two magnetic parts which are arranged on the base unit at intervals;

the counterweight unit comprises two counterweight groups which are arranged on the base unit at intervals from left to right, and each counterweight group is provided with a plurality of counterweight blocks which are detachably arranged on the base unit; and

a handle unit, which comprises a grab handle extending left and right, two anti-rotation modules sleeved on the left and right ends of the grab handle and used for being incapable of rotating and detachably arranged on the base unit; two counterweight adjusting modules which are respectively arranged on the anti-rotation modules, and two counterweight wheels which are respectively arranged on the counterweight adjusting modules in a rotatable manner;

each anti-rotation module is also provided with a magnetic fastener which can movably extend into the counterweight wheel, and when the counterweight unit is arranged on the base unit, the magnetic fasteners are respectively driven by the magnetic force of the magnetic attraction piece to be respectively separated from the counterweight wheel.

Preferably, each counterweight adjusting module has a plurality of clamping components which are sleeved and fixed on the handle and respectively correspond to the counterweight blocks of the respective counterweight block group, and the clamping components and the corresponding counterweight wheels can be synchronously driven to enable each clamping component to be clamped or separated from the corresponding counterweight block.

Preferably, each anti-rotation module has a mounting seat for being rotatably and downwardly disposed on the base unit, the magnetic fastener is disposed in the mounting seat, and a first elastic member is disposed between the mounting seat and the magnetic fastener, and the first elastic member constantly provides an elastic force for the magnetic fastener to be upwardly inserted into one of the jacks.

The utility model also discloses a weight trainer contains:

a base unit;

the counterweight unit comprises two counterweight groups which are arranged on the base unit at intervals from left to right, and each counterweight group is provided with a plurality of counterweight blocks which are detachably arranged on the base unit;

and the handle unit comprises a grab handle extending leftwards and rightwards, and two anti-rotation modules which are sleeved at the left end part and the right end part of the grab handle and are used for being incapable of rotating and being detachably arranged on the base unit, each anti-rotation module is provided with a magnetic fastener which is used for being detachably inserted into a corresponding weight wheel, and when the mounting seat of the handle unit is arranged on the base unit, the magnetic fasteners are respectively driven by the magnetic force of the magnetic attraction piece and are respectively separated from the weight wheels.

The utility model has the advantages that: by means of the arrangement of the magnetic fastener and the magnetic attraction piece, when the anti-rotation module is placed on the base unit, the magnetic force of the magnetic attraction piece drives the magnetic fastener to unlock, and the embedded clamping assembly can be driven to rotate. Because the magnetic part drives the magnetic fastener to act through non-contact force without physical contact, the magnetic fastener can avoid the generation of abrasion deformation caused by long-term use, thereby reducing the loss and the maintenance cost of the weight training device.

Drawings

Other features and advantages of the present invention will become apparent from the following detailed description of the preferred embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of a first embodiment of the weight training device of the present invention;

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

FIG. 3 is an exploded perspective view of a handle unit of the first embodiment;

FIG. 4 is a side cross-sectional view of the first embodiment, illustrating the latch assembly in a locked state;

FIG. 5 is a fragmentary side cross-sectional view of the first embodiment, illustrating the latch assembly in an unlatched condition;

FIG. 6 is a fragmentary side cross-sectional view of the first embodiment illustrating a magnetic fastener inserted into one of the receptacles of the corresponding turntable;

FIG. 7 is a perspective view of a second embodiment of the weight training device of the present invention;

FIG. 8 is an exploded perspective view of the second embodiment; and

fig. 9 is a fragmentary side sectional view of the second embodiment.

Reference numerals

1: weight training device

2: base unit

21: base body

23: safety button

231: projecting part

232: stop part

3: counterweight unit

31: counterweight group

311: balancing weight

4: handle unit

401: perforation

402: opening holes

41: grab handle

411: gripping part

412: embedded part

413: driving turntable

42: counterweight wheel

420: jack hole

421: peripheral surface

422: end face

423: concave part

424: convex surface part

425: weight label

43: counterweight adjusting module

431: embedded card assembly

44: anti-rotation module

45: mounting seat

46: magnetic fastener

47: first elastic member

48: shell body

49: buckle assembly

491: fixing piece

492: fastener

493: second elastic member

494: leaning and supporting part

49: card insertion part

5: magnetic unit

51: magnetic attraction pieces.

Detailed Description

Referring to fig. 1-2, the first embodiment of the weight training device 1 of the present invention comprises a base unit 2, a magnetic unit 5, a weight unit 3, and a handle unit 4.

The magnetic unit 5 includes two magnetic parts 51 spaced apart from each other and disposed on the base unit 2, and two safety buckles 23 spaced apart from each other and disposed on the base unit 2. Each safety catch 23 has a protruding portion 231 protruding upward from the base unit 2, and a stopper portion 232 extending laterally outward from an upper end of the protruding portion 231.

The counterweight unit 3 is disposed on the base body 21 at left and right intervals, the counterweight unit 3 includes two counterweight groups 31 disposed on the base unit 2 at left and right intervals, each counterweight group 31 has a plurality of counterweights 311 detachably disposed on the base unit 2, and each counterweight 311 has two front and back opposite embedding holes (not shown).

Referring to fig. 3 to 5, the handle unit 4 includes a handle 41 extending left and right, two anti-rotation modules 44 sleeved on left and right ends of the handle 41 and detachably disposed on the base unit 2, two counterweight adjustment modules 43 respectively mounted on the anti-rotation modules 44, and two counterweight wheels 42 respectively rotatably mounted on the counterweight adjustment modules 43.

The handle 41 extends left and right with two ends respectively inserted into the weight adjusting module 43 and the rotation preventing module 44, and can be rotated to drive each inserting component 431 of each weight adjusting module 43 to engage with or disengage from the inserting hole (not shown) of the corresponding weight block 311, and the handle 41 can rotate and simultaneously drive the weight wheel 42 to rotate coaxially. Since the engagement or disengagement of the engaging member 431 with or from the weight member 311 is not a key point of the present invention, it is not repeated herein.

Each weight wheel 42 has an end surface 422 facing the handle 41 and an outer peripheral surface 421, and each weight wheel 42 further has a plurality of insertion holes 420 recessed in the outer peripheral surface 421 and distributed at intervals, a plurality of concave portions 423 radially penetrating and recessed in the end surface 422 and distributed at intervals around the axis thereof, and a plurality of convex portions 424 respectively interposed between two adjacent concave portions 423. The insertion hole 420 and the concave portion 423 are positioned to correspond to each other in the left-right direction. The outer peripheral surface 421 of each weight wheel 42 is also provided with a plurality of weight tags 425.

Each anti-rotation module 44 has a mounting seat 45, a magnetic fastener 46 mounted on the mounting seat 45, and a first elastic member 47. Each mounting seat 45 is configured to be non-rotatably disposed downward on the base body 21, and has a housing 48 and a locking component 49 mounted on the housing 48 and abutting against the corresponding weight wheel 42. The housing 48 of each mounting seat 45 is covered on the corresponding weight adjustment module 43 in the left-right direction and hides the corresponding weight wheel 42 therein, and each housing 48 has a through hole 401 in the left-right direction. The user can observe the weight label 425 exposed out of the housing 48 and rotate the handle 41 to drive the weight wheel 42 to rotate, so as to control the inserting component 431 to insert the weight block 311 corresponding to the weight label 425.

Each of the locking components 49 has a fixing member 491, a locking member 492, and a second elastic member 493. Each fixing member 491 is fixedly disposed on one side of the corresponding housing 48 facing the corresponding weight wheel 42, and has an opening 402 facing the weight wheel 42, and each locking member 492 is slidably mounted between the fixing member 491 and the housing 48 in a left-right direction, and has an abutting portion 494 abutting against the end surface 422 of the weight wheel 42 through the opening 402 of the fixing member 491, and an insertion portion 495 connected to a lower end of the abutting portion 494 and facing the through hole 401 of the housing 48. Each second elastic element 493 is disposed between the corresponding locking element 492 and the corresponding housing 48, and constantly provides an elastic restoring force for the locking element 492 to retract the insertion portion 495 into the corresponding through hole 401.

Each locking member 49 is driven by the corresponding weight wheel 42 to change between a locking state and an unlocking state. In the locked state, the weight wheel 42 pushes the abutting portion 494 of the corresponding locking member 492 with one of the convex surface portions 424, and compresses the corresponding second elastic member 493, so that the insertion portion 495 can pass through the corresponding through hole 401 and be locked to the corresponding safety catch 23, since the insertion portion 495 transversely abuts against the protruding portion 231 of the safety catch 23 and is vertically limited by the upper blocking portion 232, the handle unit 4 cannot be lifted upwards, in the unlocked state, the weight wheel 42 faces the corresponding locking member 492 with one of the concave surface portions 423, and the insertion portion 495 of the locking member 492 is separated from the safety catch 23 and is retracted into the through hole 401 under the elastic restoring force of the second elastic member 493, so that the handle unit 4 can be lifted upwards.

The magnetic fastener 46 of each anti-rotation module 44 is pivoted to the fixing member 491 and is detachably inserted upwards into one of the insertion holes 420 of the corresponding weight wheel 42. The magnetic fasteners 46 are driven by the magnetic force of the magnetic member 51 to swing downward and separate from the insertion holes 420 when the rotation-preventing module 44 is disposed on the base unit 2. Each first elastic member 47 is installed between the corresponding magnetic fastener 46 and the corresponding fixing member 491, and constantly provides an elastic force for the magnetic fastener 46 to be inserted into one of the insertion holes 420 of the corresponding weight wheel 42.

When the counterweight of the weight training device 1 is adjusted according to the first embodiment, the handle unit 4 is first placed on the base unit 2, so that the rotation-preventing modules 44 can be respectively and downwardly abutted against the magnetic attraction member 51, and the magnetic fasteners 46 in the rotation-preventing modules 44 can be moved downwardly to be separated from the insertion holes 420 under the driving of the magnetic attraction member 51, so that the user can drive the handle 41 and drive the counterweight wheel 42 to rotate relative to the rotation-preventing modules 44, so as to drive each card-inserting component 431 to insert the corresponding counterweight 311 to adjust to the predetermined counterweight.

The user can determine whether the handle 41 has been rotated to the correct position by observing the exposed weight label 425. When the handle 41 is rotated to the correct position, each weight wheel 42 will drive the corresponding locking member 49 to the unlocked state by one of the concave portions 423, so that the user can lift the handle unit 4 together with the weight 311 locked on the weight adjustment module 43. When the handle 41 is not driven to the correct position, each weight wheel 42 will drive the corresponding latch assembly 49 to switch to the locked state by one of the convex portions 424, so that the handle unit 4 cannot be lifted upwards.

Referring to fig. 6, when the handle unit 4 is lifted and separated from the base unit 2, each magnetic fastener 46 is also far away from the corresponding magnetic attraction member 51 and is inserted into one of the insertion holes 420 of the corresponding weight wheel 42 under the elastic force of the corresponding first elastic member 47, so that a user cannot rotate the handle 41 relative to the rotation prevention module 44, and the accidental dropping of the weight block 311 caused by the careless rotation of the handle 41 to separate the inserting assembly 431 from the insertion hole of the corresponding weight block 311 is prevented.

Referring to fig. 7-9, the second embodiment of the weight training device 1 of the present invention is different from the first embodiment in that: the structural design of the base unit 2 and the handle unit 4, and the manner of driving the engagement member 431 to adjust the weight, only the differences will be described below.

The base unit 2 includes two base bodies 21 disposed at an interval, and the magnetic attraction member 51, the weight set 31, and the safety buckle 23 are disposed on the base bodies 21 respectively. The handle 41 has a holding portion 411 disposed between the rotation preventing modules 44 in a non-rotatable manner, and two insertion portions 412 inserted in the weight adjusting modules 43 in a rotatable manner. The handle unit 4 further includes two driving dials 413 rotatably disposed on the weight adjusting module 43 and connected to the embedding portions 412, respectively. Each embedding part 412 can be driven by the corresponding driving turntable 413 to drive the embedding component 431 to engage or disengage with the corresponding weight block 311, and to coaxially drive the corresponding weight wheel 42 to rotate.

When the second embodiment is used to adjust the counterweight of the weight training device 1, the handle unit 4 is first placed on the base unit 2, so that the rotation-preventing modules 44 can be respectively and downwardly abutted against the magnetic-attracting members 51 disposed on the base body 21, and the magnetic fasteners 46 in the rotation-preventing modules 44 can be moved downwardly to be separated from the insertion holes 420 under the driving of the magnetic force of the magnetic-attracting members 51. The user can respectively drive the driving dial 413 and drive the embedding part 412 and the weight wheel 42 to rotate relative to the anti-rotation module 44, so as to drive each embedding component 431 to embed the corresponding weight block 311 and adjust to the predetermined weight.

In summary, the arrangement of the magnetic fastener 46 and the magnetic member 51 can be used to control whether the engaging member 431 can be driven to rotate, so as to avoid the accident that the weight member 311 falls off during the use process, and since the magnetic member 51 drives the magnetic fastener 46 to operate through the non-contact force without physical contact, the phenomenon of abrasion and deformation caused by long-term use can be reduced. On the other hand, with the provision of the locking member 49, it is also possible to provide a mistake-proofing mechanism for preventing the handle unit 4 from being lifted up when the inserting member 431 is not driven to the correct position. Therefore, the utility model relates to a weight training device 1 which can improve the safety of use and reduce the wear of parts and the maintenance cost.

However, the above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the contents of the patent specification are still included in the scope of the present invention.

Claims

1. A weight training device, comprising:

a base unit;

a handle unit including a grab handle extending left and right, two anti-rotation modules sleeved on the left and right ends of the grab handle and used for being unable to rotate and detachably arranged on the base unit, two counterweight adjusting modules respectively arranged on the anti-rotation modules, and two counterweight wheels rotatably arranged on the counterweight adjusting modules respectively, each counterweight adjusting module having a plurality of embedded components sleeved and fixed on the grab handle and respectively corresponding to the counterweight blocks of the respective counterweight block set, the embedded components and the corresponding counterweight wheels being capable of being synchronously driven to enable each embedded component to be clamped or separated from the corresponding counterweight block, each anti-rotation module having a mounting seat arranged on the base unit and used for being unable to rotate and downwards, and a magnetic fastener arranged on the mounting seat and used for being detachably clamped on the corresponding counterweight wheel, and when the mounting seat is arranged on the base unit, the magnetic fasteners are driven by the magnetic force of the magnetic fasteners to separate from the weight wheels.

2. The weight training device of claim 1, wherein the handle extends left and right with two ends respectively inserted into the weight adjustment modules, and can be rotated to drive each engaging member of each weight adjustment module to engage with or disengage from the corresponding weight block, and to coaxially drive the weight wheel to rotate.

3. The weight training device of claim 1, wherein the handle has a holding portion disposed between the anti-rotation modules in a non-rotatable manner, and two insertion portions rotatably inserted into the weight adjustment modules, respectively, the handle unit further includes two driving rotating discs rotatably disposed in the weight adjustment modules and connected to the insertion portions, respectively, each insertion portion being driven by the corresponding driving rotating disc to rotate the insertion member to engage with or disengage from the corresponding weight block, and coaxially drive the corresponding weight wheel to rotate.

4. The weight training device of claim 2 or 3, wherein each of the weight wheels has a plurality of insertion holes spaced along an outer circumferential surface thereof for allowing the magnetic fasteners to be inserted upward.

5. The weight training device of claim 2 or 3, wherein each anti-rotation module further comprises a first elastic member disposed between the mounting base and the magnetic fastener, the first elastic member constantly providing an elastic force for the magnetic fastener to be inserted into one of the insertion holes.

6. The weight training device of claim 2 or 3, wherein the base unit further comprises two safety catches spaced apart from each other on the base unit, each mounting seat having a housing with a through hole extending laterally therethrough, and a catch member mounted on the housing and abutting against the corresponding weight wheel, the catch member being drivable by rotation of the weight wheel to change between a locked state in which it projects through the through hole and catches the corresponding safety catch, and an unlocked state in which it is retracted into the through hole and out of the corresponding safety catch.

7. The weight training device as claimed in claim 6, wherein each of the locking members has a fixed member fixedly disposed on the corresponding housing, a locking member slidably disposed between the fixed member and the housing, and a second elastic member disposed between the housing and the locking member, the fixed member has a hole laterally exposed to the left and right for the locking member to abut against the corresponding weight wheel, the locking member is rotatably driven by the weight wheel to change between the locking state of passing through the corresponding through hole and locking the corresponding safety buckle and the unlocking state of retracting into the through hole and releasing from the safety buckle, and the second elastic member constantly provides an elastic restoring force for the locking member to retract into the corresponding through hole.

8. The weight training device of claim 7, wherein each of the weight wheels has an end surface facing the corresponding fastener member, the end surface having a plurality of concave portions radially and penetratingly recessed in the end surface and spaced around the axis thereof, and a plurality of convex portions respectively interposed between two adjacent concave portions, each of the weight wheels being drivable by the grip to alternately abut against the corresponding fastener member in left and right lateral directions with the convex portions or the concave portions.

9. The weight training device of claim 8, wherein each safety catch has a projection projecting upwardly from the base unit and a stop extending laterally outwardly from the projection, the fastener members being drivable to project through the apertures and upwardly abut the stops, respectively.

10. The weight training device of claim 9, wherein the base unit comprises two spaced apart base bodies, and the magnetic member, the weight set, and the safety catch are disposed on the base bodies.

11. A weight training device, comprising:

a base unit;

12. The weight training device of claim 11, wherein each weight adjustment module has a plurality of engaging members engaging with the handle and corresponding to the weights of the respective weight set, the engaging members and the corresponding weight wheels can be driven synchronously to engage or disengage each engaging member with or from the corresponding weight.

13. The weight training device of claim 12, wherein the handle extends left and right with two ends respectively inserted into the weight adjustment modules, and can be rotated to drive each engaging member of each weight adjustment module to engage with or disengage from the corresponding weight block, and to drive the weight wheel to rotate coaxially.

14. The weight training device of claim 13, wherein the handle has a holding portion disposed between the anti-rotation modules in a non-rotatable manner, and two insertion portions rotatably inserted into the weight adjustment modules, respectively, the handle unit further includes two driving rotating discs rotatably disposed in the weight adjustment modules and connected to the insertion portions, respectively, each insertion portion being driven by the corresponding driving rotating disc to rotate the insertion member to engage with or disengage from the corresponding weight block, and coaxially drive the corresponding weight wheel to rotate.

15. The weight training device of claim 11, wherein each of the weight wheels has a plurality of insertion holes spaced along an outer circumferential surface thereof for allowing the magnetic fasteners to be inserted upward.

16. The weight training device of claim 11, wherein each anti-rotation module has a mounting seat for being rotatably disposed downward on the base unit, the magnetic fastening member is disposed in the mounting seat, and a first elastic member is disposed between the mounting seat and the magnetic fastening member, the first elastic member constantly providing an elastic force for the magnetic fastening member to be inserted into one of the insertion holes upward.

17. The weight training device of claim 16, wherein the base unit further comprises two safety catches spaced apart from one another on the base unit, each mounting seat having a housing with a lateral bore therethrough, and a catch member mounted on the housing and abutting the corresponding weight wheel, the catch member being drivable by rotation of the weight wheel to change between a locked state projecting through the bore and engaging the corresponding safety catch, and an unlocked state retracted into the bore and disengaged from the corresponding safety catch.

18. The weight training device of claim 17, wherein each of the locking members comprises a fixed member fixedly disposed on the corresponding housing, a locking member slidably disposed between the fixed member and the housing, and a second elastic member disposed between the housing and the locking member, the fixed member having a hole laterally exposed to the left and right for the locking member to abut against the corresponding weight wheel, the locking member being rotatably driven by the weight wheel to change between the locked state passing through the corresponding through hole and being locked to the corresponding safety catch and the unlocked state retracting into the through hole and being released from the safety catch, the second elastic member constantly providing an elastic restoring force for the locking member to retract into the corresponding through hole.

19. The weight training device of claim 18, wherein each of the weight wheels has an end surface facing the corresponding fastener member, the end surface having a plurality of concave portions radially and penetratingly recessed in the end surface and spaced around the axis thereof, and a plurality of convex portions respectively interposed between two adjacent concave portions, each of the weight wheels being drivable by the grip to alternately abut against the corresponding fastener member in left and right lateral directions with the convex portions or the concave portions.

20. The weight training device of claim 19, wherein each safety catch has a projection projecting upwardly from the base unit and a stop extending laterally outwardly from the projection, the fastener members being drivable to project through the apertures and upwardly abut the stops, respectively.

21. A weight training device, comprising:

a base unit;