CN112827134A

CN112827134A - Spring-grip dumb-bell structure

Info

Publication number: CN112827134A
Application number: CN202010565627.7A
Authority: CN
Inventors: 林大富
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-22
Filing date: 2020-06-19
Publication date: 2021-05-25
Also published as: TW202120151A; TWI700110B

Abstract

The invention discloses a spring-grip dumb-bell structure, which comprises a first grab handle, a second grab handle pivoted with the first grab handle, an adjusting seat movably accommodated in the second grab handle, a tension spring pivoted with the first grab handle and the adjusting seat, a positioning ring sleeved at one end of the second grab handle, an adjusting rod penetrating through the positioning ring and screwed with the adjusting seat, a supporting lock seat sleeved at the peripheral side of the adjusting rod and an eccentric wrench pivoted with the adjusting rod. By means of the structure, a user can quickly adjust the tension of the tension spring and can also clamp the mobile device.

Description

Spring-grip dumb-bell structure

Technical Field

The invention relates to the technical field related to fitness aids, in particular to a spring-grip dumb-bells structure.

Background

A common grip exerciser, as disclosed in the previous case of taiwan patent No. M330845, can only provide a user with grip exercise of a palm, and cannot be used for other purposes; therefore, users need to purchase training equipment of special items according to different training items, which is very wasteful and occupies space.

The structure of the M330845 proposal adjusts the tension of a tension spring by adjusting a screw rod of a screw piece; however, the adjusting screw does not have an additional fixing structure, and is easily self-rotated by external force or vibration, so as to change the tension of the tension spring, and therefore, the user must adjust the tension to the required tension before using the device every time, which is very inconvenient and troublesome.

In addition, pressing the crutch to act like the third foot (even the fourth foot) of a human being is used for assisting the user to stand and walk. The body weight is transferred to the crutch through the hands, so that the weight and the pressure applied to the legs are reduced, and the fulcrum can be increased on an uneven road to keep the body balance.

The main structure of a common crutch is a straight and rigid crutch body and a crutch head connected to the crutch body for a user to hold, one end of the crutch body abuts against the ground, and the body weight is supported and pressed on the crutch to disperse the pressure applied to the legs and knees.

However, when a user holds the crutch to support the ground, although the weight of the body is applied to the crutch, the opposite crutch will also transmit the reaction force (acting force) of the ground back to the hand of the user, causing discomfort to the hand of the user, and causing soreness to the hand of the user after a long time.

In addition, the walking stick is similar to a walking stick in use and is also a alpenstock, which provides a person who climbs and walks and can easily finish the journey. The mode of use is to hold the handle of the alpenstock in a holding mode, like the state of clenching the fist for a long time, which causes the user to feel uncomfortable and increases the fatigue feeling of the user in climbing mountains.

Disclosure of Invention

In view of the above problems and deficiencies of the prior art, it is an object of the present invention to provide a spring-grip dumb-bells structure for providing quick tension adjustment for a user.

Another objective of the present invention is to provide a structure of grip device, which is used to combine with a shaft to reduce the shock-absorbing force applied to the shaft.

According to the above object of the present invention, there is provided a spring-grip dumb-bell structure, comprising:

a first handle;

a second handle, the upper section of which is provided with a transverse groove part, one end of the transverse groove part is pivoted with the first handle and is provided with a plurality of pin holes for two bolts to penetrate, and the other end of the transverse groove part is provided with a limit convex part;

an adjusting seat movably accommodated in the transverse groove part;

one end of the tension spring is connected with the first grab handle, and the other end of the tension spring is connected with the adjusting seat;

a positioning ring fixedly arranged on the limit convex part;

one end of the adjusting rod is exposed outside the transverse groove part, and the other end of the adjusting rod penetrates through the positioning ring and then is screwed with the adjusting seat and is clamped and limited by the bolts;

a supporting lock seat sleeved on the outer periphery of the adjusting rod and abutted against the positioning ring; and

an eccentric wrench pivotally connected to the adjusting lever and selectively abutting against the supporting lock seat.

A spring-grip dumb-bell structure comprising:

a first handle;

a second handle pivoted with the first handle;

the two ends of the tension spring are respectively connected with the first grab handle and the second grab handle to provide a preset tension; and

a third handle pivoted to the second handle toward the lower end.

By means of the structure, a user can quickly adjust the tension of the tension spring and can also clamp the mobile device.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a partially exploded view of the embodiment of FIG. 1.

FIG. 3 is a partial component schematic view of the embodiment of FIG. 2.

Fig. 4 is an exploded view of the embodiment of fig. 3.

Fig. 5 is a schematic view of another perspective of the embodiment shown in fig. 4.

Fig. 6 is a schematic view of another perspective of the embodiment shown in fig. 3.

FIG. 7 is an operation diagram (I) of the embodiment shown in FIG. 6.

FIG. 8 is a second operation diagram of the embodiment shown in FIG. 6.

FIG. 9 is a third operation diagram of the embodiment shown in FIG. 6.

FIG. 10 is an operation diagram of the embodiment shown in FIG. 1.

Fig. 11 is a perspective view of another embodiment of the present invention.

FIG. 12 is an operation diagram of the embodiment shown in FIG. 11.

FIG. 13 is an operation diagram (IV) of the embodiment shown in FIG. 6.

FIG. 14 is an operation diagram (V) of the embodiment shown in FIG. 6.

Fig. 15 is a perspective view of another embodiment of the present invention.

FIG. 16 is a partially exploded view of the embodiment of FIG. 15.

FIG. 17 is a partial component schematic view of the embodiment of FIG. 16.

Fig. 18 is an exploded view of the embodiment of fig. 17.

Fig. 19 is a schematic cross-sectional view of the embodiment of fig. 17.

The corresponding names in the figure are marked as follows:

10 … first handle 11 … curved part 12 … straight handle 13 … pivot part

14 … clasp 15 … locating slot part

20 … second grab handle 21 … crank portion 22 … horizontal groove portion 222 … movable groove

23 … pivot 24 … limit projection 242 … limit rib

25 … elevation angle 252 … elevation angle pivot hole 254 … elevation angle slot

26 … pinhole

27 … extended pivot 272 … extended pivot 274 … pivot hole 276 … thread inside

31 … adjusting seat 32 … tension spring 33 … positioning ring

332 … ring axle hole 334 … positioning groove 336 … positioning tooth flower

34 … adjusting screw 34' … adjusting rod 341 … rod hole

342 … polygonal segment 343 … threaded segment 344 … annular groove 345 … rod pivot hole

35 … grip adjustment wheel 351 … axle tube portion 352 … multi-angle hole 353 … spline portion

36. 36 '… support lock holders 362, 362' … support ring portions

3622. 3622 '… ring hole 3624, 3624' … ring tooth flower

3626 '… limiting grooves 364, 364' … support lock

3642 '… Lock shaft hole 3644' … Lock tooth flower

37 … tightening wheel 372 … torsion wheel portion 374 … axle portion

38 … straddle carrier 382 … straddle carrier pivot 384 … straddle carrier arm

386 … straddle crossbar 39 … eccentric wrench 40 … third handle

42 … grip tube 44 … grip tube pivot 422 … grip tube hole

442 … quick-release assembly of external insection 50 … with handle pivot hole 444 …

51 … quick-release nut 52 … quick-release shaft sleeve 54 … quick-release wrench

542 … eccentric pivot joint 544 … trigger 53 … quick-release screw

60 … support clamp 62 … clamp nut 61 … clamp

612 … Clamp holder 614 … Clamp pivot slot 616 … Clamp shaft hole

63 … Clamp screw 70 … wrist strap 80 … crutch body unit

Bolt a2 … bolt a1 … bolt P1 … bolt.

Detailed Description

The following description will further describe embodiments of the spring-grip dumb-bells according to the present invention with reference to the accompanying drawings, wherein like reference numerals are used to describe like elements in the following for the convenience of understanding the embodiments of the present invention.

Referring to fig. 1 to 7, the handgrip structure 10 of the present invention includes a first handle 10, a second handle 20, a first tension adjusting mechanism, a third handle 40, a quick release assembly 50, a support clamp 60 and a wrist strap 70.

The first handle 10 has an arc portion 11, a straight portion 12, a pivot portion 13, a buckle portion 14 and at least one positioning groove portion 15.

The curved portion 11 and the straight portion 12 are formed at the opposite upper and lower ends of the first handle 10, respectively.

The pivot part 13 is formed at the joint of the arc part 11 and the straight handle part 12.

The buckling part 14 is formed at the upper end of the curved part 11.

The positioning groove part 15 is formed at the preset position of the inner arc surface of the arc part 11.

The second handle 20 has a crank portion 21, a transverse groove portion 22, a pivot portion 23, a limiting protrusion 24, a bottom corner portion 25, two pin holes 26, and an extending pivot portion 27.

The crank portion 21 and the transverse groove portion 22 are respectively formed at two opposite ends of the second handle 20, and the transverse groove portion 22 has a movable groove 222.

The pivot portion 23, matching with the pivot portion 13, is formed at one end of the transverse slot portion 22, and is matched with a bolt a1 and a nut a2 to pivot the pivot portion 23 (the second handle 20) and the pivot portion 13 (the first handle 10).

The limiting protrusion 24 is formed at the other end of the transverse groove 22 different from the pivot 23, and has at least one limiting rib 242 on the outer circumferential side.

The elevation angle part 25, the matching positioning groove part 15, is formed on the top of the horizontal groove part 22, and has two elevation angle pivot holes 252 and a plurality of elevation angle grooves 254, which are arranged on the two symmetrical ends of the elevation angle part 25.

The pin holes 26, which are formed symmetrically through the transverse slot 22 adjacent to the pivot portion 23, provide a plurality of pins P1 for mating insertion therethrough.

The extension pivot portion 27 is formed at the lower end of the crank portion 21 and has an extension pivot groove 272, a pivot hole 274 and at least one internal insection 276. The pivot hole 274 penetrates the extended pivot portion 27 and communicates the extended pivot groove 272 with the outside. The inner serrations 276 are formed on the wall of the extended pivot slot 272.

The first tension adjusting mechanism includes an adjusting seat 31, a tension spring 32, a positioning ring 33, an adjusting screw 34, a grip adjusting wheel 35, a support lock seat 36, a tightening wheel 37 and a span 38.

The adjusting seat 31 is movably received in the movable slot 222 of the transverse slot portion 22, and has an adjusting seat screw hole 312.

One end of the tension spring 32 is connected to the adjusting seat 31, and the other end is connected to the buckling portion 14 of the first handle 10.

The positioning ring 33 is sleeved on the outer periphery of the limit protrusion 24, and has a ring axle hole 332, a positioning groove 334, and a positioning tooth flower 336.

The annular shaft hole 332 is formed through the retaining ring 33 concentrically with the adjustment seat screw hole 312 of the adjustment seat 31.

The positioning groove 334 is formed on an end surface of the positioning ring 33 to match with the contour of the position-limiting protrusion 24 (position-limiting rib 242).

The positioning teeth 336 are formed on the other end surface of the positioning ring 33 opposite to the positioning groove 334. In practice, the positioning teeth 336 may be optionally omitted and replaced with a resilient washer (not shown).

The adjusting screw 34 has a rod hole 341 and a polygonal section 342, a threaded section 343 and an annular groove 344 sequentially formed along the outer circumference of the adjusting screw 34 in the extending direction. The adjusting screw 34 has one end passing through the ring shaft hole 332 of the positioning ring 33 and screwed with the adjusting seat screw hole 312 of the adjusting seat 31, and is received in the movable groove 222 of the transverse groove portion 22, and the ring groove 344 is clamped and limited by two bolts P1 passing through the two pin holes 26 of the second handle 10.

The grip adjusting wheel 35 is disposed around the outer periphery of the polygonal section 342 of the adjusting screw 34 for linking the adjusting screw 34, and has a shaft tube portion 351, a polygonal hole 352 and a spline portion 353. The polygonal hole 352 is formed through the shaft tube 351. The spline portion 353 is formed on the outer peripheral side of the shaft tube portion 351.

The support lock holder 36 is fitted around the outer peripheral side of the shaft tube portion 351 of the grip adjusting wheel 35, and has a support ring portion 362 and a support lock portion 364.

The supporting ring 362 has a ring hole 3622 for the shaft tube 351 of the grip adjusting wheel 35 to pass through and a ring gear 3624 matching the gear 353. In practice, the ring teeth 3624 can be optionally omitted and replaced with a resilient washer (not shown).

The support lock 364 is provided at the distal end of the support ring 362, and has a lock shaft hole 3642 and at least one lock spline 3644. The lock shaft hole 3642 is formed through the support lock 364. The locking teeth 3644 are formed on the predetermined end surface of the support locking portion 364 and are positioned to match the locking shaft hole 3642. In practice, the locking serrations 3644 may be optionally omitted and replaced with a resilient washer (not shown).

The tightening wheel 37 is selectively screwed into the rod hole 341 of the adjusting screw 34, and has a torsion wheel portion 372 and a wheel shaft portion 374 having one end fixed to the torsion wheel portion 372 and the other end screwed into the rod hole 341.

The outer contour of the straddle 38 is slightly n-shaped, and the two symmetrical ends of the straddle are respectively provided with a straddle pivot 382, a straddle arm 384 and a straddle crossbar 386 connected with each straddle arm 384; wherein each cross frame pivot 382 is inserted and pivoted corresponding to the elevation pivot hole 252. Each straddle arm 384 is selectively captively received in one of the respective elevation slots 254. The cross bar 386 can selectively abut against the positioning slot 15.

The third handle 40 is pivotally connected to the extended pivot portion 27 of the second handle 20, and has a handle portion 42 and a handle pivot portion 44 formed at the top end of the handle portion 42.

The grip portion 42 has a grip hole 422 on its downward end surface for inserting or sleeving a fixture on one end of the crutch unit (described in detail later).

The handle pivot portion 44 is a matching extension pivot portion 27, and has a handle pivot hole 442 passing through the handle pivot portion 44 and concentric with the pivot hole 274, and at least one matching internal tooth pattern 276 formed on an external side surface of the handle pivot portion 44.

The quick release assembly 50 is used to pivotally connect the handle pivot portion 44 and the extension pivot portion 27, so as to selectively force the extension pivot portion 27 to tighten or loosen the handle pivot portion 44. The quick release assembly 50 includes a quick release nut 51, a quick release sleeve 52, a quick release screw 53 and a quick release wrench 54.

The quick release shaft sleeve 52 is inserted through the pivot hole 274 of the extending pivot portion 27 and the handle pivot hole 444 of the handle pivot portion 44.

The quick-folding wrench 54 has an eccentric pivot 542 and a trigger 544 at two ends thereof.

One end of the quick-release screw 53 is threaded with the quick-release nut 51 after penetrating the quick-release shaft sleeve 52, and the other end is pivoted with the eccentric pivoting part 542 of the quick-release wrench 54.

The supporting clamp 60 is pivotally connected to the supporting lock seat 36, and includes a clamp 61, a clamp nut 62 and a clamp screw 63.

The clamp 61 has a clamp base 612, a clamp pivot groove 614 and a clamp shaft hole 616. The holder 612 and the clip pivot groove 614 are formed at the upper and lower ends of the clip 61, respectively, and the groove wall of the clip pivot groove 614 is matched with the locking portion teeth 3644 of the supporting locking portion 364, and at least one clip teeth 618 is formed. The jig shaft hole 616 is formed through the jig 61 and communicates with the jig pivot groove 614.

The clamp screw 63 is inserted into the clamp shaft hole 616 and the lock shaft hole 3642 and then screwed with the clamp nut 62, so that the clamp 61 selectively presses or releases the support lock seat 364 and provides clamping for the mobile device (e.g., mobile phone, camera, handheld computer).

The wrist strap 70 is connected to the curved portion 11 of the first grip 10 to provide a palm of a user to pass through.

The above is a description of the components and assembly of the spring-grip dumb-bells structure according to the preferred embodiment of the present invention, and the operation features of the preferred embodiment of the present invention are described below.

First, the user can hold the straight handle portion 12 and the curved handle portion 21 of the first and

second handles

10, 20 and apply force to achieve the purpose of training the palm grip of the user. When the strength of the grip strength does not meet the requirements of the user, the strength can be changed by adjusting the tension of the tension spring 32.

Referring to fig. 7, to adjust the tension of the tension spring 32, the tightening wheel 37 is first rotated and retreated away from the transverse slot 22 to form a clearance space, so that the support lock seat 36 and the grip adjusting wheel 35 can move away from the transverse slot 22, and the two end faces of the spline portion 353 of the grip adjusting wheel 35 are no longer engaged with the ring spline 3624 of the support lock seat 36 and the positioning spline 336 of the positioning ring 33.

At this time, the twisting grip adjusting wheel 35 synchronously drives the adjusting screw 34 to rotate, so that the adjusting seat 31 screwed on the outer periphery of the adjusting screw 34 moves along the axial direction of the adjusting screw 34, and the tension of the tension spring 32 connected with the adjusting seat 31 is changed.

Referring to fig. 8 to 9, because different shapes, ages, and the like of the first and

second handles

10 and 20 have different palm openness, the first and

second handles

10 and 20 can be pressed to make the openness of the straight handle portion 12 and the curved handle portion 21 be at the minimum (or preset openness) according to the palm openness requirement of different users, and then the straddle 38 is shifted to adjust the positions of the straddle 38 recessed in the different elevation slots 254 of the elevation portion 25 to form the positioning slot portions 15 with different elevation angles abutting against each other, so as to adjust the openness of the straight handle portion 12 and the curved handle portion 21 of the first and

second handles

10 and 20.

In addition to holding the first and

second handles

10, 20 for grip strength training, when the tube-holding hole 422 of the third handle 40 facing downward is sleeved on the outer periphery of a fixed column (not shown), the user can further cooperate with the arm to apply a downward pressure to further achieve muscle strength training of the arm.

Referring to fig. 2 and 10, when the third handle 40 is disposed on the outer periphery of a fixed post, the angles of the first and

second handles

10 and 20 can be adjusted according to the body shape of the user and the quick-release assembly 50.

The adjustment method is to pull the quick-release wrench 54 to link the quick-release screw 53 so that the screwed quick-release nut 51 no longer tightly clamps the extending pivot 27 of the second handle 20, so that the second handle 20 can be adjusted in angle relative to the third handle 40 with the quick-release screw 53 as the axis, according to the body shape or holding manner of different users.

After the second handle 20 is adjusted to the default position, the reverse quick-release wrench 54 forces the eccentric pivot 542 to abut against the second handle 20 again and drives the quick-release nut 51 at one end of the quick-release screw 53 to clamp the extending pivot 27 together, so as to position the angles of the first and

second handles

10, 20 relative to the third handle 40.

Referring to fig. 11 and 12, when the third handle 40 is inserted into one end of the crutch unit 80 and used as a crutch or a trekking stick, the user can hold the first and

second handles

10 and 20 in a half-open holding manner to move the crutch unit 80 and abut against the ground (not shown), and the counter-vibration force generated when the crutch unit 80 abuts against the ground is offset by the tension spring 32; so, the user walking in-process, the palm presents the repetitive motion of holding one, is different from the state that the long-time fist of clenching of prior art and finger are tight, borrows this to alleviate the anti-seismic capacity who transmits the user hand, more can let the motion that the user palm is tight, loose, amazing peripheral blood circulation, effectively alleviate the fatigue of health.

In addition to the above-mentioned reduction of the palm pressure by holding the first and

second grips

10, 20, the wrist band 70 can be further engaged with the palm of the user to further reduce the grip of the palm of the user and disperse the grip on the wrist, thereby dispersing the body weight transferred by the palm and enabling the user to walk more easily.

Referring to fig. 11, 13 to 14, the supporting lock seat 36 further selectively provides a supporting clamp 60 for locking to conveniently clamp the mobile device (such as a mobile phone), and then forms a self-timer in cooperation with the crutch unit 80.

When the angle of the mobile device is adjusted by clamping the mobile device with the clamp 61 of the support clamp 60, the clamp screw 63 (clamp nut 62) can be loosened to expand the clamp pivot groove 614, so that the support clamp 60 can be adjusted. The tightening wheel 37 can be further rotated and retreated away from the transverse slot 22 to form a retreating space, so that the support lock seat 36 can move away from the transverse slot 22, and the ring toothed portion 3624 of the support lock seat 36 is no longer engaged with the toothed portion 353 of the grip adjusting wheel 35, at this time, the support lock seat 36 is twisted to adjust the direction, and the locking can be performed by the above-mentioned reverse operation after the positioning is reached.

Thus, the user can hold the crutch unit 80 by hand to take a self-portrait or raise the mobile device to take a photograph.

Referring to fig. 15 to 19, a second embodiment of a tension adjusting mechanism is provided to replace the first tension adjusting mechanism, which includes an adjusting seat 31, a tension spring 32, a positioning ring 33, an adjusting rod 34 ', a supporting lock seat 36', a bridge 38 and an eccentric wrench 39; the structures of the adjusting seat 31, the tension spring 32, the positioning ring 33 and the straddle 38 are the same as those of the above embodiment, and therefore, the description is omitted, except that:

the adjusting rod 34 'is formed with a rod pivot hole 345, a thread section 343 and a ring groove 344 in sequence along the outer circumference of the adjusting rod 34' in the extending direction. The adjusting rod 34' has one end passing through the ring shaft hole 332 of the positioning ring 33 and screwed into the adjusting seat screw hole 312 of the adjusting seat 31, and is received in the movable groove 222 of the transverse groove portion 22, and the ring groove 344 is clamped and limited by two pins P1 passing through the two pin holes 26 of the second handle 10.

The eccentric wrench 39 has an eccentric portion 392 and a trigger 394 at two ends thereof; wherein the eccentric portion 392 is pivotally connected to the lever pivot hole 345 of the adjustment lever 34'.

The support lock seat 36 ' is in contact with the positioning ring 33 and has a support ring part 362 ' and a support lock part 364 '.

The supporting ring 362 ' has a ring hole 3622 ' through which the adjusting rod 34 ' extends, a ring spline 3624 ' matching the spline portion 353, and a stopper groove 3626 ' for stopping the eccentric wrench 39.

The support lock 364 ' is provided at the distal end of the support ring 362, and has a lock shaft hole 3642 ' and at least one lock serration 3644 '. The lock shaft hole 3642 'is formed through the support lock 364'. The locking teeth 3644 ' are formed on the predetermined end surface of the support locking 364 ' and are matched with the locking shaft hole 3642 '.

When the tension spring 32 is to be adjusted, the eccentric wrench 39 is pulled to release the tension on the adjusting rod 34 ', and then the eccentric wrench 39 is rotated to rotate the adjusting rod 34 ' synchronously, so that the adjusting seat 31 on the adjusting rod 34 ' is displaced and the tension of the tension spring 32 is changed. When the supporting lock seat 36 ' is to be adjusted, the eccentric wrench 39 is pulled to release the pulling force on the adjusting rod 34 ', so as to twist the supporting lock seat 36 '.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and is not intended to limit the scope of the embodiments of the present invention, which is defined by the claims, and equivalents and modifications known to those skilled in the art, are within the scope of the present invention.

Claims

1. A spring-grip dumb-bell arrangement, comprising:

a first handle;

an adjusting seat movably accommodated in the transverse groove part;

a positioning ring fixedly arranged on the limit convex part;

2. The spring-grip dumb-bell arrangement as recited in claim 1, wherein a wrist strap is attached to the first grip.

3. The spring-grip dumb-bell structure of claim 1, wherein said first handle has at least one positioning groove; the top of the transverse slot has an elevation part for providing a cross frame to pivot and push against the positioning slot part.

4. The spring-grip dumb-bell structure as claimed in claim 3, wherein said elevation portion has at least one elevation slot for providing a stop for said bridge.

5. The spring-grip dumb-bell structure as claimed in claim 1, wherein said support lock seat has a support ring portion and a support lock portion provided at a top end of said support ring portion.

6. The structure of the spring-grip dumb-bell of claim 5, wherein the end surface of the positioning ring abutting the supporting lock seat has a positioning tooth flower, and the supporting lock seat is matched with a ring tooth flower formed on the supporting ring.

7. The spring-grip dumb-bell structure as claimed in claim 6, wherein the end face of the support ring portion abutting against the eccentric wrench has a limiting groove.

8. The spring-grip dumb-bell construction as claimed in claim 1, wherein said second grip is pivotally connected at a lower end thereof to a third grip.

9. The spring-grip dumb-bell construction of claim 8 wherein a crutch body unit is received by the third handle.

10. The structure of the spring-grip dumb-bell of claim 8, wherein the lower section of the second handle has an extended pivot portion having an extended pivot slot, a pivot hole penetrating the extended pivot portion, and at least one inner insection formed on a wall of the extended pivot slot; the third grab handle is matched with the extending pivot part and is provided with a grab handle pivot part, a grab handle pivot hole which is concentrically penetrated through the grab handle pivot part with the pivot hole and is formed, and at least one external tooth pattern which is matched with the internal tooth pattern and is formed on the grab handle pivot part.

11. The spring-grip dumb-bell structure as claimed in claim 10, wherein said second handle and said third handle are pivotally connected by a quick release assembly comprising

A quick-release shaft sleeve penetrating the pivot hole and the handle pivot hole;

a quick-folding wrench;

one end of the quick-release screw rod penetrates through the quick-release shaft sleeve and then is screwed with a quick-release nut, and the other end of the quick-release screw rod is pivoted with the quick-release wrench.

12. A spring-grip dumb-bell arrangement, comprising:

a first handle;

a second handle pivoted with the first handle;

a third handle pivoted to the second handle toward the lower end.

13. The spring-grip dumb-bell arrangement as recited in claim 12, wherein a wrist strap is attached to the first grip.

14. The spring-grip dumb-bell arrangement of claim 12, wherein said third grip has a grip aperture at a lower end face thereof.

15. The spring-grip dumb-bell construction of claim 12 wherein a crutch body unit is received by the third handle.

16. The spring-grip dumb-bell structure of claim 12, wherein said first handle has at least one positioning groove; the top of the transverse slot has an elevation part for providing a cross frame to pivot and push against the positioning slot part.

17. The spring-grip dumb-bell structure as claimed in claim 16, wherein said elevation portion has at least one elevation slot for providing said straddle-mount stop.

18. The structure of the spring-grip dumb-bell of claim 12, wherein the lower section of the second handle has an extended pivot portion having an extended pivot slot, a pivot hole penetrating the extended pivot portion, and at least one inner insection formed on a wall of the extended pivot slot; the third grab handle is matched with the extending pivot part and is provided with a grab handle pivot part, a grab handle pivot hole which is concentrically penetrated through the grab handle pivot part with the pivot hole and is formed, and at least one external tooth pattern which is matched with the internal tooth pattern and is formed on the grab handle pivot part.

19. The spring-grip dumb-bell structure as claimed in claim 18, wherein said second handle and said third handle are pivotally connected by a quick release assembly comprising:

a quick-folding wrench;