CN110935131A

CN110935131A - Easy dismounting's dumbbell

Info

Publication number: CN110935131A
Application number: CN201911030230.1A
Authority: CN
Inventors: 董旭
Original assignee: Zhejiang Zheng Xing Fitness Equipment Co Ltd
Current assignee: Zhejiang Zheng Xing Fitness Equipment Co Ltd
Priority date: 2019-07-02
Filing date: 2019-10-28
Publication date: 2020-03-31
Also published as: CN211188940U

Abstract

The invention provides a dumbbell convenient to disassemble and assemble, and belongs to the technical field of fitness equipment. It has solved the inconvenient problem of current dumbbell dismouting. This easy dismounting's dumbbell, including the dumbbell piece, dumbbell mobile jib and set up in the dumbbell auxiliary rod at dumbbell mobile jib both ends, dumbbell mobile jib cavity, be equipped with the boss on the outer peripheral face of dumbbell auxiliary rod's outer end, the interior end of dumbbell auxiliary rod inserts in the dumbbell mobile jib, and this interior end can slide in dumbbell mobile jib, the boss, the holding tank of placing the dumbbell piece is constituted jointly to the terminal surface of dumbbell auxiliary rod and dumbbell mobile jib, be equipped with between dumbbell auxiliary rod and the dumbbell mobile jib and make the interior end of dumbbell auxiliary rod take out or make the inner end location of dumbbell auxiliary rod in the dumbbell mobile jib from the dumbbell mobile jib. The dumbbell piece is fast and convenient to install, and the dumbbell piece is not easy to fall off.

Description

Easy dismounting's dumbbell

Technical Field

The invention belongs to the technical field of fitness equipment, and particularly relates to a dumbbell convenient to disassemble and assemble.

Background

Along with the development of scientific economy and the continuous improvement of living standards of people, when people enjoy comfortable life, people are easy to suffer from diseases such as hypertension, hyperlipidemia, hyperglycemia and the like due to lack of sports, and in addition, the incidence rate of sub-health problems taking chronic fatigue as a main symptom is also on the trend of increasing year by year, so people pay more and more attention to body health, and therefore body-building equipment is more and more popular with people, wherein a dumbbell is one of the body-building equipment which is most popular with people, the existing dumbbell needs to be taken, placed and assembled by rotating locking devices on two sides, and the weight plate taking and placing are tedious and time waste.

For example, a fast-detachable dumbbell [ application No. cn201720836306. x; the dumbbell of the scheme comprises a dumbbell rod, a large spring, a dumbbell sheet, triangular stop irons, buttons, a connecting rod and small springs, wherein shaft shoulders are arranged on two sides of the dumbbell rod respectively, the large spring is arranged on the outer sides of the shaft shoulders, round holes are formed in two end faces of the dumbbell rod respectively, two mounting grooves are formed in the round holes in the diameter direction, the triangular stop irons are arranged in the mounting grooves respectively and can rotate around a fixed shaft, one end of the connecting rod is hinged with the triangular stop irons, the other end of the connecting rod is hinged with the buttons, one end of each small spring is fixed at the hinged point of the connecting rod and the corresponding button, and the other end of each small spring is fixed on the bottom face of the corresponding round hole

Although the technical scheme can realize the quick disassembly and assembly of the dumbbell piece, the technical scheme has the following defects: with the increase of the number of the dumbbell pieces, the rebound force of the large spring is increased more and more, at the moment, the dumbbell pieces are increased again, the larger elasticity needs to be overcome, the installation difficulty is increased, even under the condition that an operator is not careful, the dumbbell pieces in the dumbbell pieces can be popped up, and therefore the hand of a user pressing the button can be hurt.

Disclosure of Invention

Aiming at the defects, the invention provides a dumbbell capable of being quickly assembled and disassembled.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a simple to assemble and disassemble's dumbbell, includes dumbbell piece, dumbbell mobile jib and sets up in the dumbbell auxiliary rod at dumbbell mobile jib both ends, its characterized in that, dumbbell mobile jib cavity, the outer peripheral face of the outer end of dumbbell auxiliary rod on be equipped with the boss, the inner end of dumbbell auxiliary rod insert in the dumbbell mobile jib, and this inner end can slide in the dumbbell mobile jib, boss, dumbbell auxiliary rod with the terminal surface of dumbbell mobile jib constitute the holding tank of placing the dumbbell piece jointly, dumbbell auxiliary rod with the dumbbell mobile jib between be equipped with the inner end that can make dumbbell auxiliary rod take out or make the inner end location of dumbbell auxiliary rod in the dumbbell mobile jib from the dumbbell mobile jib.

The principle of the invention is as follows: during installation, the dumbbell auxiliary rods are pulled out of the dumbbell main rod through the positioning mechanism, then the dumbbell pieces with required quantity are sleeved on the dumbbell auxiliary rods, then the inner ends of the dumbbell auxiliary rods are inserted into the dumbbell main rod until the dumbbell pieces are attached to the end face of the dumbbell main rod, so that the dumbbell pieces are limited by the end face and the boss of the dumbbell main rod, and then the positioning mechanism is controlled to position the inner ends of the dumbbell auxiliary rods on the dumbbell main rod to complete installation; when the dumbbell is detached, the dumbbell can be installed quickly and conveniently only by reverse operation, and the dumbbell is not easy to drop.

In the easy dismounting dumbbell, the end face of the outer end of the dumbbell auxiliary rod is provided with a first mounting groove, the end face of the inner end of the dumbbell auxiliary rod is provided with a second mounting groove, the first mounting groove is communicated with the second mounting groove, the groove wall of the second mounting groove is provided with a hole groove, the positioning mechanism comprises a button arranged in the first mounting groove, a sliding block arranged in the second mounting groove and a ball arranged in the hole groove, a reset spring is arranged between the button and the bottom of the first mounting groove, a connecting rod of the button passes through a channel and is connected with the sliding block, the sliding block comprises a first block body close to the bottom of the second mounting groove and a second block body connected with the first block body, a gap is arranged between the outer peripheral surface of the first block body and the groove wall of the second mounting groove, and the outer peripheral surface of the second block body is slidably connected on the groove wall of the second mounting groove, the outer peripheral surface of the first block body is connected with the outer peripheral surface of the second block body through a frustum surface, the diameter of the ball is larger than the thickness of the groove wall of the second mounting groove, the ball abuts against the outer peripheral surface of the second block body, a plurality of grooves are formed in the inner wall of the dumbbell main rod, and the ball can be clamped in one of the grooves relative to the protruding part of the groove wall. When in use, the button is pressed to push the slider to the end part of the inner end of the dumbbell auxiliary rod, at the moment, the second block body slides inwards, after the second block body slides to the hole slot position, the dumbbell auxiliary rod and the dumbbell main rod slide (are drawn out or inserted) relatively at the moment, and the ball bearings are not abutted by the outer peripheral surface of the second block body, therefore, the ball can move into the hole groove and is not contacted with the groove any more, the ball is abutted against the outer peripheral surface of the first block body after passing through the frustum surface, at the moment, the balls no longer play the role of clips, the dumbbell auxiliary rod can freely slide relative to the dumbbell main rod, after the dumbbell auxiliary rod is taken out or is inserted to the target in place, release the button, the button resets under the spring action power and drives the slider and move outward, makes the slider reset, and the position of slider and ball changes, and the ball supports from the outer peripheral face of new by the second block and leans on, and the relative slot part of ball is outstanding this moment, plays the effect of checkpost again.

In the easy dismounting dumbbell, the hole groove is provided with a necking part on the notch at one side of the peripheral surface of the auxiliary rod of the dumbbell.

In the above easy dismounting dumbbell, the distance from the outer peripheral surface of the first block to the wall of the second mounting groove is equal to the difference between the diameter of the ball and the thickness of the wall of the second mounting groove.

In the easy dismounting dumbbell, the groove is a spherical groove.

In the dumbbell convenient to disassemble and assemble, the sliding block is fixed at the end part of the connecting rod of the button through the screw.

In the easy dismounting dumbbell, the cross section of the auxiliary dumbbell rod is rectangular. The structure of rectangle is for circular, makes dumbbell piece location more easily, prevents that dumbbell piece from rotating, also can prevent that dumbbell auxiliary rod and dumbbell mobile jib from taking place to rotate simultaneously.

In the dumbbell convenient to disassemble and assemble, the central distance value of the two adjacent grooves on the inner wall of the main rod of the dumbbell is the same as the thickness of the dumbbell piece.

In the easy dismounting dumbbell, the length of the dumbbell auxiliary rod inserted into the dumbbell main rod is less than or equal to half of the length of the dumbbell main rod.

In the dumbbell convenient to assemble and disassemble, the anti-skid area formed by the criss-cross anti-skid grooves is arranged on the peripheral surface of the main rod of the dumbbell.

Compared with the prior art, this easy dismounting's dumbbell has following advantage: when adding and subtracting dumbbell piece quantity as long as the user presses the button can realize breaking away from of dumbbell auxiliary rod and dumbbell mobile jib and auxiliary rod, then as long as add and subtract the quantity of dumbbell piece on dumbbell auxiliary rod and can accomplish the counter weight, later press the button again and insert the dumbbell auxiliary rod and can accomplish whole dismouting process with the dumbbell mobile jib, convenience simple to use to the dumbbell piece can not deviate from suddenly, safe and reliable.

Drawings

FIG. 1 is a schematic diagram of a dumbbell in the present embodiment, which is easy to assemble and disassemble.

Fig. 2 is a structural view of the dumbbell auxiliary rod pulled out from the main rod of the dumbbell in the embodiment.

Fig. 3 is a sectional view of the embodiment in the state of fig. 2.

Fig. 4 is an enlarged view of fig. 3 at B (with the balls omitted).

FIG. 5 is a schematic sectional view showing the dumbbell sub-bar retracted into the main bar of the dumbbell in the embodiment.

In the figure, 1, a dumbbell sheet; 2. a dumbbell main rod; 2a, a groove; 3. a dumbbell auxiliary rod; 3a, a boss; 4. accommodating grooves; 5. an anti-slip region; 6. a first mounting groove; 7. a second mounting groove; 8. a hole groove; 8a, a throat; 9. a button; 10. a slider; 10a, a first block; 10b, a second block; 10c, a frustum surface; 11. a ball bearing; 12. a return spring; 13. A screw; 14. a gap.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-3, the easy-to-disassemble dumbbell comprises a dumbbell sheet 1, a dumbbell main rod 2 and dumbbell auxiliary rods 3 arranged at two ends of the dumbbell main rod 2, the dumbbell main rod 2 is hollow, a boss 3a is arranged on the outer peripheral surface of the outer end of the dumbbell auxiliary rod 3, the inner end of the dumbbell auxiliary rod 3 is inserted into the dumbbell main rod 2, and this inner end can slide in dumbbell mobile jib 2, boss 3a, dumbbell auxiliary rod 3 and dumbbell mobile jib 2's terminal surface constitutes the holding tank 4 of placing dumbbell piece 1 jointly, be equipped with between dumbbell auxiliary rod 3 and the dumbbell mobile jib 2 and make the inner end of dumbbell auxiliary rod 3 take out or make the interior end location of dumbbell auxiliary rod 3 in dumbbell mobile jib 2 from dumbbell mobile jib 2, dumbbell auxiliary rod 3 inserts the length less than or equal to half of dumbbell mobile jib 2 length in dumbbell mobile jib 2, be equipped with the non-slip region 5 that constitutes by vertically and horizontally staggered's non-skid groove on dumbbell mobile jib 2's the outer peripheral face.

Specifically, referring to fig. 1 and 3, a first mounting groove 6 is formed in the end face of the outer end of the dumbbell auxiliary rod 3, a second mounting groove 7 is formed in the end face of the inner end of the dumbbell auxiliary rod 3, the first mounting groove 6 is communicated with the second mounting groove 7, a hole groove 8 is formed in the groove wall of the second mounting groove 7, and it should be noted that, as shown in fig. 4, a notch of the hole groove 8 on the side of the outer peripheral surface of the dumbbell auxiliary rod 3 is provided with a necking portion 8 a. The positioning mechanism includes a button 9 provided in the first mounting groove 6, a slider 10 provided in the second mounting groove 7, and a ball 11 provided in the hole groove 8, and since the hole groove 8 has a constricted portion 8a, the ball 11 is not removed from the hole groove 8. A return spring 12 is arranged between the button 9 and the bottom of the first mounting groove 6, a connecting rod of the button 9 penetrates through the channel, and a sliding block 10 is fixed at the end of the connecting rod through a screw 13. The slider 10 includes the first block 10a that is close to the bottom of second mounting groove 7 groove and the second block 10b of being connected with first block 10a, have clearance 14 between the first block 10a periphery and the second mounting groove 7 cell wall, the periphery sliding connection of second block 10b is on the cell wall of second mounting groove 7, connect through frustum 10c between the periphery of first block 10a and the periphery of second block 10b, the diameter of ball 11 is greater than the thickness of the cell wall of second mounting groove 7, and ball 11 supports and leans on the periphery of second block 10b, be equipped with a plurality of recess 2a on the inner wall of dumbbell mobile jib 2, ball 11 can block in one of them recess 2a for the cell wall salient.

The cross section of dumbbell auxiliary rod 3 is the rectangle, and the structure of this kind of rectangle can make dumbbell auxiliary rod 3 and dumbbell mobile jib 2's grafting calibration more convenient for circular, can make dumbbell piece 1 location more firm again, prevents that dumbbell piece 1 from rotating on dumbbell auxiliary rod 3, also can prevent that dumbbell auxiliary rod 3 and dumbbell mobile jib 2 from taking place to rotate simultaneously.

The distance from the outer circumferential surface of the first block 10a to the groove wall of the second mounting groove 7 is equal to the difference between the diameter of the ball 11 and the thickness of the groove wall of the second mounting groove 7. This prevents the balls 11 from being caught between the outer circumferential surface of the first block 10a and the groove wall of the second mounting groove 7.

The central distance value of two adjacent grooves 2a on the inner wall of the dumbbell main rod 2 is the same as the thickness of the dumbbell sheet 1. The number of the dumbbell pieces 1 can be controlled to realize accurate balance weight by controlling the dumbbell auxiliary rod 3 to position the certain groove 2a of the dumbbell main rod 2, and meanwhile, the limitation of the dumbbell pieces 1 can be realized, so that the dumbbell pieces 1 are prevented from shaking.

As shown in fig. 3 and 5, in use, the button 9 is pressed to push the slider 10 towards the end of the inner end of the auxiliary dumbbell rod 3, at this time, the second block 10b slides inwards, after the second block 10b slides through the position of the hole groove 8, the auxiliary dumbbell rod 3 and the main dumbbell rod 2 slide relatively to each other to be drawn out or inserted, the ball 11 does not abut against the outer peripheral surface of the second block 10b and moves into the hole groove 8 and does not contact with the groove 2a, the ball 11 abuts against the outer peripheral surface of the first block 10a after passing through the frustum 10c, at this time, the ball 11 does not act as a clip, the auxiliary dumbbell rod 3 can slide freely relative to the main dumbbell rod 2, after the auxiliary dumbbell rod 3 is drawn out or inserted in place, the button 9 is released, the button 9 resets under the spring action to drive the slider 10 to move outwards, so that the slider 10 resets, and the positions of the slider 10 and the ball 11 change, the ball 11 is abutted from the outer peripheral surface of the second block 10b, and at this time, the ball 11 partially protrudes relative to the hole groove 8 to play a role of a clip again.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A dumbbell convenient to disassemble and assemble comprises dumbbell pieces (1), a dumbbell main rod (2) and dumbbell auxiliary rods (3) arranged at two ends of the dumbbell main rod (2), it is characterized in that the dumbbell main rod (2) is hollow, a boss (3a) is arranged on the outer peripheral surface of the outer end of the dumbbell auxiliary rod (3), the inner end of the auxiliary dumbbell rod (3) is inserted into the main dumbbell rod (2) and can slide in the main dumbbell rod (2), the end surfaces of the boss (3a), the dumbbell auxiliary rod (3) and the dumbbell main rod (2) jointly form an accommodating groove (4) for accommodating the dumbbell sheet (1), the dumbbell auxiliary rod (3) and the dumbbell main rod (2) are provided with a positioning mechanism which can enable the inner end of the dumbbell auxiliary rod (3) to be drawn out from the dumbbell main rod (2) or enable the inner end of the dumbbell auxiliary rod (3) to be positioned in the dumbbell main rod (2).

2. The dumbbell of claim 1, wherein the end face of the outer end of the auxiliary rod (3) is provided with a first mounting groove (6), the end face of the inner end of the auxiliary rod (3) is provided with a second mounting groove (7), the first mounting groove (6) is communicated with the second mounting groove (7), the wall of the second mounting groove (7) is provided with a hole groove (8), the positioning mechanism comprises a button (9) arranged in the first mounting groove (6), a slider (10) arranged in the second mounting groove (7) and a ball (11) arranged in the hole groove (8), a return spring (12) is arranged between the button (9) and the bottom of the first mounting groove (6), the connecting rod of the button (9) passes through the channel to be connected with the slider (10), and the slider (10) comprises a first block (10a) close to the bottom of the second mounting groove (7) and a first block (10a) The dumbbell comprises a first block body (10a) and a second block body (10b), wherein a gap (14) is formed between the outer peripheral surface of the first block body (10a) and the groove wall of a second mounting groove (7), the outer peripheral surface of the second block body (10b) is connected with the groove wall of the second mounting groove (7) in a sliding mode, the outer peripheral surface of the first block body (10a) is connected with the outer peripheral surface of the second block body (10b) through a conical table surface (10c), the diameter of a ball (11) is larger than the thickness of the groove wall of the second mounting groove (7), the ball (11) abuts against the outer peripheral surface of the second block body (10b), a plurality of grooves (2a) are formed in the inner wall of the dumbbell main rod (2), and the ball (11) can be clamped in one of the grooves (2a) relative to the protruding portion of the groove wall.

3. The dumbbell of claim 2, wherein the slot (8) is provided with a necking part (8a) on the notch on the side of the outer peripheral surface of the auxiliary rod (3).

4. The dumbbell of claim 2 or 3, wherein the distance from the outer peripheral surface of the first block (10a) to the wall of the second mounting groove (7) is equal to the difference between the diameter of the ball (11) and the wall thickness of the second mounting groove (7).

5. The dumbbell of claim 2 or 3, wherein the recess (2a) is a spherical groove.

6. The dumbbell of claim 2 or 3, wherein the slider (10) is fixed at the end of the link of the button (9) by a screw (13).

7. The dumbbell convenient to disassemble and assemble according to claim 1, 2 or 3, wherein the cross section of the dumbbell auxiliary rod (3) is rectangular.

8. The dumbbell convenient to disassemble and assemble according to claim 1, 2 or 3, wherein the center distance value of two adjacent grooves (2a) on the inner wall of the dumbbell main rod (2) is the same as the thickness of the dumbbell sheet (1).

9. The dumbbell convenient to disassemble and assemble according to claim 1, 2 or 3, wherein the length of the dumbbell auxiliary rod (3) inserted into the dumbbell main rod (2) is less than or equal to half of the length of the dumbbell main rod (2).

10. The dumbbell of claim 1, 2 or 3, characterized in that the outer circumference of the main rod (2) is provided with anti-slip areas (5) formed by criss-cross anti-slip grooves.