CN209752048U

CN209752048U - Dumbbell convenient to dismouting

Info

Publication number: CN209752048U
Application number: CN201920334826.XU
Authority: CN
Inventors: 邓茗丹
Original assignee: FOREIGN TRADE & BUSINESS COLLEGE OF CHONGQING NORMAL UNIVERSITY
Current assignee: FOREIGN TRADE & BUSINESS COLLEGE OF CHONGQING NORMAL UNIVERSITY
Priority date: 2019-03-15
Filing date: 2019-03-15
Publication date: 2019-12-10
Anticipated expiration: 2029-03-15

Abstract

The utility model relates to a fitness products field provides a dumbbell convenient to dismouting, including dumbbell bar and clamping device, dumbbell bar's both ends are equipped with two recesses, every the recess all with one clamping device cooperates, clamping device is including cutting fork mechanism and actuating mechanism, it includes a plurality of fork units of cutting to cut fork mechanism, adjacent two cut and articulate between the fork unit, actuating mechanism with cut the cooperation of fork mechanism with the drive it is flexible to cut fork mechanism, makes it can be in the protrusion to cut the fork unit the clamping state and the retraction of recess change between the dismouting state of recess. The utility model discloses a dumbbell convenient to dismouting can pass through the actuating mechanism drive it is flexible to cut fork mechanism for cut the fork unit and withdraw the recess, be convenient for to dumbbell piece installation and dismantlement, make and cut fork unit protrusion recess and press from both sides tightly the dumbbell piece.

Description

Dumbbell convenient to dismouting

Technical Field

The utility model relates to a fitness equipment field, in particular to dumbbell convenient to dismouting.

Background

The dumbbell is an auxiliary device for weight lifting and body building exercises, and has two types of fixed weight and adjustable weight, and the dumbbell with the adjustable weight comprises a dumbbell rod with threads at two ends, dumbbell sheets and a fixing nut for fixing the dumbbell sheets on the dumbbell rod.

When the dumbbell with the adjustable weight is used and the weight of the dumbbell needs to be adjusted, a user needs to unscrew the fixing nut on the dumbbell rod, take the dumbbell sheet out of the dumbbell rod, reset the fixing nut, the adjusting process is complex, and time is wasted.

Therefore, it is a thought problem to design a dumbbell that can make the dumbbell piece easy to install and dismantle.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a dumbbell convenient to dismouting, this dumbbell convenient to dismouting can realize the quick installation and the dismantlement of dumbbell piece to reduce the time that the adjustment dumbbell piece consumed in the use.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a dumbbell convenient to dismouting, includes dumbbell bar and clamping device, dumbbell bar's both ends are equipped with two recesses, every the recess all with one clamping device cooperation, clamping device is including cutting fork mechanism and actuating mechanism, it includes a plurality of fork units of cutting to cut the fork mechanism, adjacent two it is articulated between the fork unit to cut, actuating mechanism with cut the cooperation of fork mechanism in order to drive it is flexible to cut the fork mechanism, makes it can be in the protrusion the clamping state and the retraction of recess change between the dismouting state.

Preferably, the scissors unit comprises two connecting rods, the two connecting rods are hinged through a pin shaft by taking the middle of the connecting rods as a hinge point, and the scissors units are arranged in the groove along the axial direction of the dumbbell rod.

Preferably, the driving mechanism comprises a driving ring and two sliding blocks, the driving ring is rotatably sleeved on the periphery of the dumbbell rod, a cam groove is formed in the end surface of the driving ring, which is close to one end of the dumbbell rod, one end of each sliding block is clamped with the cam groove, so that the sliding blocks can only slide along the cam grooves, and the other ends of the two sliding blocks are respectively hinged to two ends of two connecting rods in the scissors unit, which are far away from the end surface of the dumbbell rod.

Preferably, the shape of the cam groove includes an ellipse.

Preferably, a spring is arranged between the two sliding blocks, and two ends of the spring are respectively connected with the sliding blocks.

preferably, the driving ring is further provided with a self-locking mechanism, the self-locking mechanism comprises a self-locking button and two L-shaped self-locking grooves, the self-locking grooves are respectively arranged at two ends of the long axis of the cam groove, are communicated with the cam groove and are arranged in a central symmetry manner about the midpoint of the cam groove, and the self-locking button is arranged on the driving ring along the long axis direction of the cam groove.

Preferably, the dumbbell convenient to disassemble and assemble further comprises a plurality of dumbbell pieces, wherein mounting holes are formed in the dumbbell pieces, chamfers are formed at two ends of the mounting holes, and the dumbbell pieces are respectively sleeved at two ends of the dumbbell rod through the mounting holes.

Preferably, the cross-section of the groove comprises a rectangle.

Preferably, two opposite side walls of the groove in the length direction of the dumbbell rod are respectively provided with a sliding groove, and two ends of the pin shaft are respectively arranged in the sliding grooves and are in sliding connection with the sliding grooves.

Preferably, two shaft shoulders are arranged at two ends of the dumbbell rod respectively, and the shaft shoulders are arranged between the two grooves.

Compared with the prior art, the utility model discloses a dumbbell convenient to dismouting can pass through the actuating mechanism drive it is flexible to cut fork mechanism for cut the fork unit retraction recess, be convenient for to dumbbell piece installation and dismantlement, make and cut fork unit protrusion recess and press from both sides tightly the dumbbell piece.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a cross-sectional view of an embodiment of the easy-to-disassemble dumbbell of the present invention;

FIG. 2 is a schematic view of the dumbbell bar of FIG. 1;

FIG. 3 is a schematic structural view of the clamping device shown in FIG. 1 in a disassembled state;

FIG. 4 is a schematic view of the clamping state of the clamping device of FIG. 1;

FIG. 5 is a schematic structural view of the clamping unit of FIG. 4;

FIG. 6 is a schematic view of the structure of the connecting rod of FIG. 5;

FIG. 7 is a schematic structural diagram of one embodiment of a drive ring of the present invention;

fig. 8 is a schematic structural diagram of an embodiment of a dumbbell sheet according to the present invention.

Description of reference numerals:

1 dumbbell rod 2 dumbbell sheet

3 clamping device 11 groove

12 shaft shoulder 21 mounting hole

22-chamfer 31 scissor fork mechanism

32 driving mechanism 33 self-locking mechanism

111 chute 311 scissor unit

driving ring 321 322 slider

323 spring 331 self-locking button

332 self-locking groove 3111 connecting rod

3112 the pin 3211 has a cam groove

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" generally means upper, lower, left, and right as illustrated with reference to the accompanying drawings; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

The utility model provides a dumbbell convenient to dismouting, as shown in fig. 1 and 8, including dumbbell bar 1 and clamping device 3, dumbbell bar 1's both ends are equipped with two recesses 11, every recess 11 all with one clamping device 3 cooperates, clamping device 3 is including cutting fork mechanism 31 and actuating mechanism 32, it includes a plurality of fork units 311, adjacent two to cut fork mechanism 31 cut and articulate each other between the fork unit 311, actuating mechanism 32 with cut fork mechanism 31 cooperation with the drive it is flexible to cut fork mechanism 31, make it can be in the protrusion to cut fork unit 311 the clamping state and the retraction of recess 11 change between the 11 dismouting states of recess.

When the driving mechanism 32 drives the scissors mechanism 31 to extend, the scissors unit 311 retracts into the groove 11, the dumbbell sheet 2 can freely slide on the dumbbell rod 1, and at the moment, the dumbbell sheet 2 is mounted or dismounted; when the driving mechanism 32 drives the scissors mechanism 31 to contract, the scissors unit 311 protrudes outwards from the groove 11, and the dumbbell sheet 2 is restricted from moving axially along the dumbbell rod 1.

In order to make scissors unit 311 realize protruding the clamping state of recess 11 with retract change between the recess 11 dismouting state, according to the utility model discloses an embodiment, scissors unit 311 includes two connecting rods 3111, two connecting rod 3111 through round pin axle 3112 with the middle part of connecting rod 3111 is articulated for the pin joint, and is a plurality of scissors unit 311 is in follow in the recess 11 dumbbell rod 1's axis direction sets up. The connecting rod 3111 includes a first connecting rod and a second connecting rod, when two adjacent scissors units 311 are hinged, one end of the first connecting rod and one end of the second connecting rod in one scissors unit 311 are hinged to one end of the second connecting rod and one end of the first connecting rod in the other scissors unit 311, respectively, and the multiple hinged scissors units 311 form the scissors mechanism 31.

In order to drive the scissors mechanism 31 is flexible, according to the utility model discloses an embodiment, actuating mechanism 32 includes drive ring 321 and two sliders 322, the rotatable cover of drive ring 321 is established the periphery of dumbbell rod 1, be equipped with the dog on the dumbbell rod 1, in order to restrict the drive ring 321 follows the axial displacement of dumbbell rod 1, the drive ring 321 is close to be equipped with cam groove 3211 on the terminal surface of dumbbell rod 1 one end, the one end of slider 322 with cam groove 3211 joint, so that the slider 322 can only be followed the cam groove 3211 slides, two the other end of slider 322 respectively with keep away from two in the scissors unit 311 of dumbbell rod 1 terminal the both ends of connecting rod 3111 are articulated.

In the above, according to an embodiment of the present invention, the shape of the cam groove 3211 includes an ellipse. With such an arrangement, when the driving ring 321 rotates along the axis of the dumbbell rod 1, the distance between the two sliders 322 in the cam groove 3211 gradually increases or decreases, and the distance between the two sliders 322 and the axis of the dumbbell rod 1 is the same, so that the driving ring 321 is more lubricated and labor-saving in the process of rotating.

When the distance between the two sliders 322 in the cam groove 3211 is increased, the sliders 322 drive the scissors mechanism 31 to contract, the scissors mechanism 31 protrudes from the groove 11, and the scissors unit 311 clamps the dumbbell sheet 2 to limit the linear motion of the dumbbell sheet 2; when the distance between the two sliders 322 in the cam groove 3211 becomes smaller, the sliders 322 drive the scissors mechanism 31 to extend, the scissors mechanism 31 retracts into the groove 11, the scissors unit 311 loses the limit on the dumbbell sheet 2, and the dumbbell sheet 2 can move freely along the dumbbell rod 1.

In order to facilitate the fork shearing mechanism 31 to be switched from the dismounting state to the clamping state, according to the utility model discloses an embodiment, two be equipped with the spring 323 between the slider 322, the both ends of spring 323 respectively in the slider 322 is connected. This arrangement enables the spring 323 to continuously apply an elastic force to the slider 322, so that the slider 322 always has a tendency to move toward the clamped state.

In order to avoid the dumbbell piece 2 slipping from the dumbbell rod 1 under the clamping state, according to the utility model discloses an embodiment, still be equipped with self-locking mechanism 33 on the drive ring 321, self-locking mechanism 33 includes self-locking button 331 and two L type self-locking grooves 332, self-locking grooves 332 set up respectively at the both ends of cam groove 3211 major axis, with cam groove 3211 intercommunication, and about the midpoint central symmetry setting of cam groove 3211, self-locking button 331 is along the major axis direction setting of cam groove 3211 is in on the drive ring 321.

further, in order to make the movement of the self-locking mechanism 33 smoother, the self-locking groove 332 includes a radial groove and a circumferential groove, the radial groove is communicated with the circumferential groove, the radial groove is radially disposed along the dumbbell rod 1, and the circumferential groove is arc-shaped, is circumferentially disposed along the driving ring 321, and is coaxial with the dumbbell rod 1. This arrangement provides a reduction in friction as the slider 322 moves from the circumferential slot to the radial slot during unlocking.

According to the utility model discloses an embodiment, the dumbbell of the dismouting of being convenient for still includes a plurality of dumbbell pieces 2, be equipped with mounting hole 21 on dumbbell piece 2, the both ends of mounting hole 21 are formed with the chamfer, and are a plurality of dumbbell piece 2 passes through mounting hole 21 overlaps respectively and is established the both ends of dumbbell rod 1. Due to the arrangement, the dumbbell piece 2 and the scissors mechanism 31 are fully matched in the using process, so that the whole dumbbell is more compact in structure.

In order to facilitate the mounting of the scissors mechanism 31, according to an embodiment of the invention, the cross section of the recess 11 comprises a rectangle.

In order to make the movement route of scissors mechanism 31 more stable, according to the utility model discloses an embodiment, recess 11 is followed be equipped with spout 111 on two relative lateral walls of dumbbell rod 1 length direction respectively, the both ends of round pin axle 3112 set up respectively in spout 111, with spout 111 sliding connection. This arrangement allows the scissors mechanism 31 to move axially along the dumbbell bar 1 during movement.

According to the utility model discloses an embodiment, dumbbell rod 1's both ends are equipped with two shoulders 12 respectively, shoulders 12 set up two between the recess 11. This arrangement causes the shoulder 12 to engage the stop and limit axial movement of the drive ring 321.

When the dumbbell convenient for disassembly and assembly is used, firstly, the scissors mechanism 31 is unlocked, the driving ring 321 is rotated, the slider 322 moves from the circumferential groove to the radial groove, the self-locking button 331 is pressed to overcome the elastic force of the spring 323, the self-locking button 331 presses the slider 322 to the cam groove 3211, the driving ring 321 is continuously rotated, the slider 322 moves along the cam groove 3211 to the short axis direction of the cam groove 3211, meanwhile, the slider 322 drives the scissors unit 311 to move, the pin shaft 3112 slides along the sliding groove 111, the scissors mechanism 31 retracts into the groove 11, at this time, the dumbbell piece 2 can freely slide on the dumbbell rod 1, the dumbbell piece 2 is added or reduced on the dumbbell rod 1, after the adjustment is completed, the driving ring 321 is reversely rotated, the slider 322 moves along the cam groove 3211 to the long axis direction of the cam groove 3211, at the same time, the slider 322 drives the scissors unit 311 to move, the scissors mechanism 31 protrudes from the groove 11, the dumbbell piece 2 is limited between the two connecting, when the slide block 322 moves to the position of the self-locking groove 332, the slide block 322 enters the radial groove under the pushing of the spring 323, the driving ring 321 continues to rotate, the slide block 322 moves from the radial groove to the circumferential groove, and the scissors mechanism 31 completes self-locking.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. the dumbbell convenient to disassemble and assemble is characterized by comprising a dumbbell rod (1) and a clamping device (3), two grooves (11) are formed in two ends of the dumbbell rod (1), each groove (11) is matched with one clamping device (3), each clamping device (3) comprises a scissor mechanism (31) and a driving mechanism (32), each scissor mechanism (31) comprises a plurality of scissor units (311), every two adjacent scissor units (311) are hinged, and the driving mechanism (32) is matched with the scissor mechanism (31) to drive the scissor mechanisms (31) to stretch and retract, so that the scissor units (311) can be converted between a clamping state protruding out of the grooves (11) and a disassembling state retracting into the grooves (11).

2. The dumbbell convenient for disassembly and assembly of claim 1, wherein the scissors unit (311) comprises two connecting rods (3111), the two connecting rods (3111) are hinged through a pin shaft (3112) by taking the middle part of the connecting rod (3111) as a hinge point, and a plurality of the scissors units (311) are arranged in the groove (11) along the axial direction of the dumbbell rod (1).

3. The dumbbell convenient for disassembly and assembly of claim 2, wherein the driving mechanism (32) comprises a driving ring (321) and two sliding blocks (322), the driving ring (321) is rotatably sleeved on the periphery of the dumbbell rod (1), a cam groove (3211) is arranged on the end surface of the driving ring (321) close to one end of the dumbbell rod (1), one end of each sliding block (322) is clamped with the cam groove (3211) so that the sliding blocks (322) can only slide along the cam groove (3211), and the other ends of the two sliding blocks (322) are respectively hinged with the two ends of the two connecting rods (3111) in the scissors unit (311) far away from the end surface of the dumbbell rod (1).

4. The easy to disassemble and assemble dumbbell of claim 3, characterized in that the shape of the cam groove (3211) includes an ellipse.

5. The dumbbell convenient to disassemble and assemble according to claim 3, characterized in that a spring (323) is arranged between the two sliding blocks (322), and two ends of the spring (323) are respectively connected with the sliding blocks (322).

6. The dumbbell convenient for disassembly and assembly of claim 3, characterized in that the driving ring (321) is further provided with a self-locking mechanism (33), the self-locking mechanism (33) comprises a self-locking button (331) and two L-shaped self-locking grooves (332), the self-locking grooves (332) are respectively arranged at two ends of the long axis of the cam groove (3211), are communicated with the cam groove (3211), and are arranged in a central symmetry manner about the midpoint of the cam groove (3211), and the self-locking button (331) is arranged on the driving ring (321) along the long axis direction of the cam groove (3211).

7. The dumbbell convenient for disassembly and assembly of claim 1, further comprising a plurality of dumbbell pieces (2), wherein the dumbbell pieces (2) are provided with installation holes (21), chamfers are formed at two ends of the installation holes (21), and the dumbbell pieces (2) are respectively sleeved at two ends of the dumbbell rod (1) through the installation holes (21).

8. The dumbbell for facilitating disassembly and assembly of claim 1, wherein the cross section of the groove (11) comprises a rectangle.

9. The dumbbell convenient to disassemble and assemble according to claim 2, wherein the two opposite side walls of the groove (11) along the length direction of the dumbbell rod (1) are respectively provided with a sliding groove (111), and two ends of the pin shaft (3112) are respectively arranged in the sliding grooves (111) and are in sliding connection with the sliding grooves (111).

10. The dumbbell convenient for disassembly and assembly of claim 1, wherein two shaft shoulders (12) are respectively arranged at two ends of the dumbbell rod (1), and the shaft shoulders (12) are arranged between the two grooves (11).