CN218485080U - Balancing weight locking mechanism, balancing weight and weight-adjustable bell head - Google Patents

Abstract

The application discloses balancing weight locking mechanism, balancing weight and bell head of adjustable weight. The counterweight block locking mechanism comprises a clamping jaw which is in sliding connection with the counterweight seat, the counterweight seat is provided with a counterweight cabin for containing a counterweight block, one end of the clamping jaw, which extends into the counterweight cabin from the side surface of the counterweight cabin, is a clamping jaw locking dog, the bottom of the counterweight cabin is provided with a first positioning bulge, and the clamping jaw locking dog extends into the counterweight cabin so as to lock the counterweight block positioned in the counterweight cabin; the jack catch spring bolt breaks away from the counter weight storehouse to loosen the balancing weight that is located in the counter weight storehouse. The weight of the bell head is changed by placing the balancing weight into or taking the balancing weight out of the balancing weight bin, when the weight of the bell head needs to be increased, the balancing weight is placed into the balancing weight bin, the first positioning bulge extends into the positioning groove to position the balancing weight, and then the clamping jaw and the spring bolt are matched to be inserted into the clamping groove to lock the balancing weight, so that the balancing weight is prevented from being separated from the balancing weight bin; when the weight of the bell head needs to be reduced, the claw lock tongue is separated from the clamping groove, the balancing weight can be separated from the counterweight bin, and the operation for adjusting the weight of the bell head is simple.

Description

Balancing weight locking mechanism, balancing weight and weight-adjustable bell head

Technical Field

The utility model relates to a body-building apparatus field especially relates to a balancing weight locking mechanism, balancing weight and adjustable weight's bell head.

Background

The dumbbell is a common fitness apparatus. The muscle training device is used for muscle strength training and muscle compound action training. The dumbbell can be held by hands for patients with low muscle strength caused by paralysis, pain, long-term inactivity and the like, and the weight of the dumbbell can be used for performing resistance active exercise and training the muscle strength.

The weight of the existing dumbbell is adjusted by changing the number and the size of the dumbbell pieces which are inserted and fixed at the two ends of the dumbbell rod. When the weight of the dumbbell is adjusted, the fixing nuts screwed at the two ends of the dumbbell rod need to be unscrewed, then the weight plates are increased or decreased, and then the fixing nuts are screwed on the dumbbell rod to fix the weight plates, so that the operation is complicated.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a weight locking mechanism, a weight and a weight adjustable bell head with simple operation.

On the first hand, the counterweight block locking mechanism of the utility model comprises a claw which is connected with a counterweight seat in a sliding way, the counterweight seat is provided with a counterweight chamber for holding a counterweight block, one end of the claw which extends into the counterweight chamber from the side surface of the counterweight chamber is a claw lock tongue, the bottom of the counterweight chamber is provided with a first positioning bulge,

the claw lock tongue extends into the counterweight cabin to lock the counterweight block in the counterweight cabin;

the claw lock tongue is separated from the counterweight cabin to loosen a counterweight block in the counterweight cabin.

In a second aspect, the utility model discloses a balancing weight, which comprises a body, the body is put into in the counter weight storehouse partially at least, the body side is provided with the joint groove, the body bottom is provided with positioning groove.

In a third aspect, the weight-adjustable bell head of the utility model comprises a counterweight seat and a counterweight block, wherein the counterweight seat is wrapped by a counterweight block locking mechanism,

the counterweight block is placed in the counterweight chamber, the claw lock tongue is inserted into the clamping groove, and the first positioning bulge extends into the positioning groove.

According to the technical scheme provided by the embodiment of the application, the weight of the bell head is changed by placing the balancing weight into or taking out the balancing weight from the balancing weight bin, when the weight of the bell head needs to be increased, the balancing weight is placed into the balancing weight bin, the first positioning bulge extends into the positioning groove to position the balancing weight, and then the first positioning bulge is matched with the clamping claw lock tongue to be inserted into the clamping groove to lock the balancing weight so as to prevent the balancing weight from being separated from the balancing weight bin; when the weight of the bell head needs to be reduced, the claw lock tongue is separated from the clamping groove, the balancing weight can be separated from the counterweight bin, and the operation of adjusting the weight of the bell head is simple.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of a dumbbell having an adjustable weight bell according to an embodiment of the present invention;

FIG. 2 is a front view of an adjustable weight barbell head in accordance with an embodiment of the present invention;

FIG. 3 is a right side view of an adjustable weight barbell head in accordance with an embodiment of the present invention;

FIG. 4 is a perspective view of a weight adjustable bell head in accordance with an embodiment of the present invention;

FIG. 5 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 3;

fig. 7 is a schematic structural view of a pressing column of a counterweight locking mechanism according to another embodiment of the present invention;

fig. 8 is a schematic structural view of a claw of a counterweight locking mechanism according to another embodiment of the present invention;

fig. 9 is a front view of a weight according to yet another embodiment of the present invention;

fig. 10 is a right side view of a counterweight according to yet another embodiment of the present invention.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

One embodiment of the present invention is, please refer to fig. 2 to 10, a counterweight block locking mechanism, which includes a claw 510 slidably connected to a counterweight seat 240, the counterweight seat 240 is provided with a counterweight cabin 241 for accommodating a counterweight block 600, one end of the claw 510 extending into the counterweight cabin 241 from a side surface of the counterweight cabin 241 is a claw lock tongue 511, a first positioning protrusion 2411 is provided at a bottom of the counterweight cabin 241, the claw lock tongue 511 extends into the counterweight cabin 241 to lock the counterweight block 600 located in the counterweight cabin 241; the pawl latch tab 511 disengages the weight magazine 241 to release the weight 600 located within the weight magazine 241.

The utility model discloses an in the embodiment, jack catch and counter weight seat sliding connection, the one end that the jack catch stretches into in the counter weight storehouse is the jack catch spring bolt, when putting into the balancing weight in the counter weight storehouse, the jack catch spring bolt stretches into in the counter weight storehouse to the jack catch spring bolt stretches into the joint inslot of balancing weight side. The top of the counterweight cabin is provided with an inlet and an outlet, and the counterweight block can only enter and exit the counterweight cabin from the inlet and the outlet. The stop through the jack catch spring bolt can prevent that the balancing weight from breaking away from the counter weight storehouse. The counterweight cabin bottom is provided with first location arch, the balancing weight be provided with first location arch complex positioning groove, put into the counterweight cabin at the balancing weight after, first location arch inserts positioning groove, through the cooperation of first location arch and positioning groove, can reduce the range of rocking of balancing weight in the counterweight cabin for balancing weight locking mechanism locking balancing weight is more stable. The jack catch is sliding connection with the counterweight seat, can set up the gliding sliding tray of confession jack catch on the counterweight seat, restricts the slip direction of jack catch. When the balancing weight in the balancing weight bin needs to be taken out, the clamping jaw slides relative to the balancing weight seat, the clamping jaw withdraws the balancing weight seat, the clamping jaw spring bolt is separated from the balancing weight bin, the clamping jaw spring bolt is separated from the clamping groove on the side face of the balancing weight, the clamping jaw spring bolt can not stop the balancing weight any more, and the balancing weight can be taken out from the balancing weight bin smoothly. The clamping jaw slides relative to the counterweight seat, and whether the clamping jaw lock tongue extends into the counterweight cabin is adjusted to take out and put in the counterweight block, so that the weight of the bell head is adjusted, and the operation is simplified.

Further, the counterweight seat 240 is slidably connected with a pressing column 410, a first annular matching surface 4131 and a second annular matching surface 4141 are arranged on the side surface of the pressing column 410, the diameter of the first annular matching surface 4131 is smaller than that of the second annular matching surface 4141, one end of the claw 510 close to the pressing column 410 moves along the side surface of the pressing column 410, and when one end of the claw 510 close to the pressing column 410 moves to be opposite to the first annular matching surface 4131, the claw lock tongue 511 is separated from the counterweight cabin 241; when one end of the pawl 510 close to the pressing column 410 moves to face the second annular matching surface 4141, the pawl lock tongue 511 extends into the weight chamber 241.

In the embodiment of the present invention, the pressing column is slidably connected to the counterweight seat, but not limited to, the sliding direction of the pressing column relative to the counterweight seat is perpendicular to the end surface of the counterweight seat. The counterweight seat is provided with the gliding slip chamber 242 of post that supplies to press, and slip chamber 242 can restrict and press the slip range of post, avoids pressing the post and breaks away from the counterweight seat. Referring to FIG. 1, the pressing end 411 is located at one end of the pressing column 410, and the pressing end 411 is exposed from the opening 2421 to the weight seat, but not limited to the pressing end 411 being located at the side of the bell head 200 facing away from the bell shaft 100, so as to facilitate the pressing operation by the user and avoid the pressing end interfering with the user's holding the bell shaft 100. Referring to fig. 5, a spring 412 may be disposed in the sliding cavity 242, the spring 412 provides a spring force for the pressing end 411 to be exposed out of the opening 2421, and the spring 412 generates a deformation to store energy when the pressing end 411 retracts into the opening 2421 when a user presses the pressing column. At the user and loosen and press the post, spring 412 releases the energy of storing, make to press end 411 to stretch out from opening 2421, the person of being convenient for presses, simultaneously, when pressing end 411 not pressed by external force, spring 412 makes second ring-shaped fitting surface 4141 just to jack catch 510, make jack catch 510 keep stretching into the position in counter weight storehouse 241, jack catch 510 blocks the balancing weight 600 in counter weight storehouse 241, avoid using the dumbbell to carry out the in-process of muscle training, the jack catch withdraws and leads to the balancing weight to break away from the counter weight storehouse, the security of muscle training has been guaranteed.

The side surface of the pressing column is provided with a first annular matching surface and a second annular matching surface, the diameter of the first annular matching surface is smaller than that of the second annular matching surface, and the end, close to the pressing column, of the clamping jaw moves along the side surface of the pressing column. Namely, the pressing column slides relative to the counterweight seat by pressing the pressing column, so that the position of the pressing column facing the claw can be changed. The claw can change the distance from the central shaft of the pressing column along with the movement of the pressing column. When the clamping jaw is over against the first annular matching surface, the clamping jaw is positioned at a position close to the central shaft of the pressing column, one end of the clamping jaw far away from the pressing column is separated from the counterweight cabin, the clamping jaw cannot clamp the counterweight block positioned in the counterweight cabin, and the counterweight block can freely enter and exit the counterweight cabin; when the clamping jaw is over against the second annular matching surface, the clamping jaw is located at a position far away from the central shaft of the pressing column, one end of the clamping jaw far away from the pressing column extends into the counterweight cabin, the clamping jaw clamps the counterweight block located in the counterweight cabin, and the counterweight block cannot be separated from the counterweight cabin. Through pressing down and pressing the post, the jack catch is close to the one end of pressing the post and moves along pressing the post side, realizes that a plurality of jack catches are synchronous flexible, has further shortened the dismouting time of balancing weight.

Referring to fig. 6, further, the counterweight seat 240 is provided with a limiting block 250, the jaw 510 is provided with a limiting hole 512, the limiting block 250 passes through the limiting hole 512, a spring 513 is arranged in the limiting hole 512, and the spring 513 is located on a side of the limiting block 250, which faces away from the counterweight cabin 241.

The utility model discloses an in the embodiment, the stopper passes spacing hole, through the sliding fit in stopper and spacing hole to and the cooperation of sliding tray on the counter weight seat, can play the effect of restriction jack catch slip direction and sliding range. Meanwhile, a spring is arranged in the limiting hole, and the elastic force of the spring enables one end, close to the pressing column, of the clamping jaw to move along the side face of the pressing column. The limiting block can also play a role in supporting the spring.

Further, a second positioning protrusion 514 is disposed in the limiting hole 512, and the second positioning protrusion 514 extends into the spring 513.

The utility model discloses an in the embodiment, one side that the counter weight storehouse was kept away from in spacing hole is provided with second location arch, and second location arch can play the supporting role to the spring in stretching into the spring, and it produces excessive deformation to avoid the spring, has prolonged the life of spring.

Further, a rolling member 520 is disposed between the pressing post 410 and the jaw 510.

The utility model discloses an in the embodiment, when pressing the post and sliding for the counter weight seat, the rolling member can roll between pressing post and jack catch for the jack catch is close to the one end of pressing the post and can be along pressing post side motion, has reduced the jack catch and has pressed the frictional force between the post. The rolling members may be, but are not limited to, balls.

Another embodiment of the present invention is, referring to fig. 9 and 10, a weight 600, comprising a body, wherein the body is at least partially placed in the weight chamber 241, the side of the body is provided with a joint groove 610, and the bottom of the body is provided with a positioning groove 620.

The utility model discloses an in the embodiment, counterweight storehouse bottom is provided with first location arch, and the balancing weight bottom is provided with the protruding complex positioning groove in first location, puts into the counterweight storehouse at the balancing weight after, and positioning groove is inserted to first location arch, through the protruding cooperation with positioning groove in first location, can reduce the range of rocking of balancing weight in the counterweight storehouse for balancing weight locking mechanism locking balancing weight is more stable.

The jack catch is sliding connection with the counterweight seat, can set up the gliding sliding tray of confession jack catch on the counterweight seat, restricts the slip direction of jack catch. When the balancing weight in the balancing weight bin needs to be taken out, the clamping jaw slides relative to the balancing weight seat, the clamping jaw withdraws the balancing weight seat, the clamping jaw spring bolt is separated from the balancing weight bin, the clamping jaw spring bolt is separated from the clamping groove on the side face of the balancing weight, the clamping jaw spring bolt can not stop the balancing weight any more, and the balancing weight can be taken out from the balancing weight bin smoothly. The clamping jaw slides relative to the counterweight seat, and whether the clamping jaw lock tongue extends into the counterweight cabin is adjusted to take out and put in the counterweight block, so that the weight of the bell head is adjusted, and the operation is simplified.

The jack catch and counterweight seat sliding connection, the one end that the jack catch stretches into in the counterweight storehouse is the jack catch spring bolt, when putting into the balancing weight in the counterweight storehouse, the jack catch spring bolt stretches into in the counterweight storehouse to the jack catch spring bolt stretches into the joint inslot of balancing weight side. The top of the counterweight cabin is provided with an inlet and an outlet, and the counterweight block can only enter and exit the counterweight cabin from the inlet and the outlet. The stop through the jack catch spring bolt can prevent that the balancing weight from breaking away from the counter weight storehouse.

Further, the clamping groove 610 is provided as an annular groove which circumferentially surrounds the body along the body.

The utility model discloses an in the embodiment, putting into the counter weight storehouse with the balancing weight, behind the protruding positioning groove that inserts of first location, no matter the balancing weight rotates to any position, the jack catch spring bolt is all just to the joint groove, can stretch into the joint inslot after the jack catch spring bolt stretches into the balancing weight storehouse, and convenient to use person locks the balancing weight.

Further, the body is provided as a cylinder, the positioning groove 620 is provided as a cylinder, and the positioning groove 620 is coaxial with the body. After the balancing weight is placed in the balancing weight bin, the first positioning bulge convenient to extend into the positioning groove, and the operation difficulty is reduced.

Further, the bottom of the body is provided with a round corner 630.

The utility model discloses an in the embodiment, the body bottom is provided with the fillet, also the diameter of body bottom can diminish exactly, is convenient for put into the counter weight storehouse with the balancing weight.

Another embodiment of the present invention is, referring to fig. 2 to 10, a weight-adjustable bell head 200, which comprises a weight seat 240 and a weight block 600, wherein the weight seat 240 comprises a weight block locking mechanism, the weight block 600 is inserted into a weight chamber 241, a claw lock tongue 511 is inserted into a joint groove 610, and a first positioning protrusion 2411 extends into a positioning groove 620.

The utility model discloses an in the embodiment, jack catch and counter weight seat sliding connection, the one end that the jack catch stretches into in the counter weight storehouse is the jack catch spring bolt, when putting into the balancing weight in the counter weight storehouse, the jack catch spring bolt stretches into in the counter weight storehouse to the jack catch spring bolt stretches into the joint inslot of balancing weight side. The top of the counterweight cabin is provided with an inlet and an outlet, and the counterweight block can only enter and exit the counterweight cabin from the inlet and the outlet. The stop through the jack catch spring bolt can prevent that the balancing weight from breaking away from the counter weight storehouse. The counterweight cabin is provided with first location arch in the bottom, the balancing weight be provided with first location arch complex positioning groove, put into the counterweight cabin at the balancing weight after, positioning groove is inserted to first location arch, through first location arch and positioning groove's cooperation, can reduce the range of rocking of balancing weight in the counterweight cabin for balancing weight locking mechanism locking balancing weight is more stable. The jack catch is sliding connection with the counter weight seat, can set up the gliding sliding tray of confession jack catch on the counter weight seat, restricts the slip direction of jack catch. When the balancing weight in the balancing weight bin needs to be taken out, the clamping jaw slides relative to the balancing weight seat, the clamping jaw withdraws the balancing weight seat, the clamping jaw spring bolt is separated from the balancing weight bin, the clamping jaw spring bolt is separated from the clamping groove on the side face of the balancing weight, the clamping jaw spring bolt can not stop the balancing weight any more, and the balancing weight can be taken out from the balancing weight bin smoothly. The clamping jaw slides relative to the counterweight seat, and whether the clamping jaw lock tongue extends into the counterweight cabin is adjusted to take out and put in the counterweight block, so that the weight of the bell head is adjusted, and the operation is simplified.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (10)

1. A counterweight block locking mechanism is characterized by comprising a clamping jaw connected with a counterweight seat in a sliding manner, wherein the counterweight seat is provided with a counterweight cabin for containing a counterweight block, one end of the clamping jaw extending into the counterweight cabin from the side surface of the counterweight cabin is provided with a clamping jaw lock tongue, the bottom of the counterweight cabin is provided with a first positioning bulge,

the claw lock tongue extends into the counterweight cabin to lock the counterweight block in the counterweight cabin;

the jack catch spring bolt breaks away from the counter weight storehouse to loosen the balancing weight that is located in the counter weight storehouse.

2. The counterweight block locking mechanism according to claim 1 wherein said counterweight seat has a pressing post slidably connected thereto, said pressing post having a first annular mating surface and a second annular mating surface disposed on a side thereof, said first annular mating surface having a diameter smaller than a diameter of said second annular mating surface, said pawl moving along said pressing post side near an end of said pressing post,

when one end of the clamping jaw close to the pressing column moves to face the first annular matching surface, the clamping jaw lock tongue is separated from the counterweight bin;

when the claw moves to the position opposite to the second annular matching surface near one end of the pressing column, the claw lock tongue extends into the counterweight bin.

3. The counterweight block locking mechanism according to claim 2, wherein said counterweight seat is provided with a limiting block, said jaw is provided with a limiting hole, said limiting block passes through said limiting hole, a spring is arranged in said limiting hole, and said spring is positioned on a side of said limiting block facing away from said counterweight chamber.

4. The counterweight locking mechanism of claim 3 wherein a second locating projection is disposed in said limiting aperture, said second locating projection extending into said spring.

5. The clump weight locking mechanism of claim 2, wherein a rolling member is provided between the pressing post and the pawl.

6. The utility model provides a balancing weight which characterized in that, includes the body, the body is at least partly put into the counter weight storehouse, the body side is provided with the joint groove, the body bottom is provided with positioning groove.

7. The weight of claim 6, wherein the snap groove is configured as an annular groove circumferentially surrounding the body.

8. The counterweight according to claim 6 wherein said body is configured as a cylinder and said positioning recess is configured as a cylinder, said positioning recess being coaxial with said body.

9. The weight of claim 6, wherein the bottom of the body is provided with rounded corners.

10. A weight adjustable bell head comprising a weight holder and a weight member according to any one of claims 6 to 9, the weight holder comprising a weight member locking mechanism according to any one of claims 1 to 5,

the counterweight block is placed in the counterweight chamber, the claw lock tongue is inserted into the clamping groove, and the first positioning bulge extends into the positioning groove.

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