CN112741992A

CN112741992A - Adjustable dumbbell handle structure

Info

Publication number: CN112741992A
Application number: CN202110166671.5A
Authority: CN
Inventors: 杨春玉
Original assignee: Shandong Aochuang Fitness Equipment Co ltd
Current assignee: Shandong Aochuang Fitness Equipment Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-05-04
Also published as: US20220241640A1; EP4039340A1; CA3111055A1

Abstract

The invention discloses an adjustable dumbbell handle structure which comprises a central tube, two inner side pieces, two outer side pieces, a first spiral shaft and a second spiral shaft, wherein a central rod is arranged inside the central tube, the two inner side pieces are respectively arranged on two sides of the central tube, the inner side pieces are connected with the central tube through fixing pieces, the fixing pieces are provided with inserting blocks, the inner side pieces, the fixing pieces and the central tube are fixedly connected through the inserting blocks in sequence, and the outer side of each inner side piece is sleeved with a digital ring. The invention has the beneficial effects that: according to the invention, by rotating the central tube and by means of the spiral screw rod structure, the first spiral shaft and the second spiral shaft at two sides extend out to two sides at the same time, and the first spiral shaft and the second spiral shaft hang the weight piece. The semicircle weight piece can be hung to the card of flexible simultaneously, and the weight increase and decrease of dumbbell can easily be realized to weight piece and the initial weight piece in semicircle weight piece collocation both sides, and it is convenient to use adjust, easy to maintain.

Description

Adjustable dumbbell handle structure

Technical Field

The invention relates to the technical field of fitness equipment, in particular to an adjustable dumbbell handle structure.

Background

Dumbbells are a simple device used for strengthening muscle strength training. The muscle training machine 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 dumbbell in the prior art has the problems that the weight of the dumbbell sheet is inconvenient to adjust, and the weight of the dumbbell sheet is partially and quickly adjusted.

Disclosure of Invention

The invention aims to provide an adjustable dumbbell handle structure to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an adjustable dumbbell handle structure comprises a central tube, two inner side parts, two outer side parts, a first screw shaft and a second screw shaft, wherein a central rod is arranged inside the central tube, the two inner side parts are respectively arranged at two sides of the central tube, the inner side parts are connected with the central tube through fixing parts, inserting blocks are arranged on the fixing parts, the inner side parts, the fixing parts and the central tube are fixedly connected through the inserting blocks in sequence, a digital ring is sleeved outside the inner side parts, a gear is arranged inside the digital ring, an opening corresponding to the gear is arranged on the inner side parts, the two outer side parts correspond to the inner side parts, a gear ring matched with the gear is arranged inside the outer side parts, the first screw shaft and the second screw shaft respectively penetrate through the middle parts of the outer side parts and the inner side parts from the left side and the right side to the inside of the central tube, and fixing plates are sleeved on the first screw, the screw rod comprises a first screw shaft, a second screw shaft, a fixing plate and a clamping block, wherein the first screw shaft and the second screw shaft are both hollow, the first screw shaft and the second screw shaft are sleeved outside a central rod, the sections of the first screw shaft and the second screw shaft are semicircular, the inner hole of the fixing plate is semicircular, the inner hole of the fixing plate corresponds to the clamping grooves on the two sides of the central rod and corresponds to the first screw shaft and the second screw shaft, the first screw shaft and the second screw shaft are both provided with screw threads, and the screw threads correspond to the inserting block.

Preferably, a card is arranged on the outer member, and a cam portion corresponding to the card is arranged on the inner member.

Preferably, a gear plate is arranged inside the inner side part, the cam part of the inner side part is arranged corresponding to the inner hole of the gear plate, and the gear plate is provided with more than two round holes.

Preferably, the outer side member is provided with a spring and a ball, one end of the spring abuts against the inside of the outer side member, and the other end of the spring is pressed by the fixing plate and abuts against the ball.

Preferably, the outer member is provided with an initial weight plate by a screw.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, by rotating the central tube and by means of the spiral screw rod structure, the first spiral shaft and the second spiral shaft at two sides extend out to two sides at the same time, and the first spiral shaft and the second spiral shaft hang the weight piece. The semicircle weight piece can be hung to the card of flexible simultaneously, and the weight increase and decrease of dumbbell can easily be realized to weight piece and the initial weight piece in semicircle weight piece collocation both sides, and it is convenient to use adjust, easy to maintain.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the inner member of the present invention;

FIG. 3 is a schematic view of the construction of the outer member of the present invention;

FIG. 4 is a schematic view of the present invention showing the construction of the initial weight plate;

FIG. 5 is a schematic view of the interconnection between the weight plates of the present invention;

FIG. 6 is a schematic view of the construction of the weight plates and semi-circular weight plates of the present invention;

fig. 7 is a schematic view of the structures of the initial weight plate, the weight plate and the semicircular weight plate of the present invention.

In the figure: the gear-type automatic transmission comprises a central tube 1, a gear plate 2, a fixing plate 3, a first screw shaft 4, a second screw shaft 5, an initial weight piece 6, a central rod 7, an inner side piece 8, a digital ring 9, a gear 10, an outer side piece 11, a clamping piece 12, a fixing piece 13, an insertion block 14, a ball 15, a spring 16, a weight piece 17, a semicircular weight piece 18, a bracket 19, a buckle 20 and a snap groove 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Referring to fig. 1, the present invention provides a technical solution: an adjustable dumbbell handle structure comprises a central tube 1, an inner side member 8, an outer side member 11, a first screw shaft 4 and a second screw shaft 5, wherein a central rod 7 is arranged inside the central tube 1, the inner side member 8 is provided with two cam parts which are respectively arranged at two sides of the central tube 1, a cam part of the inner side member 8, a fixing member 13 and the central tube 1 are fixedly connected through an inserting block 14 in sequence, the fixing member 13 is provided with the inserting block 14, the fixing member 13 is fixed with the central tube 1 through the inserting block 14, the fixing member 13 is clamped with the inner part of the cam part of the inner side member 8, the outer side of the inner side member 8 is sleeved with a digital ring 9, the inner side of the digital ring 9 is provided with a gear 10, the inner side member 8 is provided with an opening corresponding to the gear 10, the outer side member 11 is provided with two gear rings corresponding to the inner side member 8, the inner side of, the first screw shaft 4 and the second screw shaft 5 respectively penetrate through the middle of the outer side part 11 and the inner side part 8 from the left side and the right side to the inside of the central tube 1, the fixing plates 3 are sleeved on the first screw shaft 4 and the second screw shaft 5 respectively, the insides of the first screw shaft 4 and the second screw shaft 5 are both hollow, the first screw shaft 4 and the second screw shaft 5 are sleeved on the outer side of the central rod 7, the sections of the first screw shaft 4 and the second screw shaft 5 are semicircular, and the first screw shaft 4 and the second screw shaft are sleeved on the central rod 7 in a sleeved mode, so that collision and offset are. The inner hole of the fixing plate 3 is semicircular, the inner hole of the fixing plate 3 corresponds to the clamping grooves on the two sides of the central rod 7 and corresponds to the first screw shaft 4 and the second screw shaft 5, the first screw shaft 4 and the second screw shaft 5 are inserted into the two sides of the central rod 7, the inner hole of the fixing plate 3 is completely filled, and the fixing plate 3 is fixedly connected with the central rod 7 to lock and fix the integral component. The first screw shaft 4 and the second screw shaft 5 are both provided with screw threads, and the screw threads correspond to the insert blocks 14.

The outer member 11 is provided with a card 12. The inner member 8 is provided with a cam portion corresponding to the card 12.

The inside gear plate 2 that is provided with of interior side member 8, interior side member 8 corresponds the setting with gear plate 2, is provided with the cam portion the same with 2 hole appearances of gear plate on the interior side member 8 that says so, and gear plate 2 overlaps in the cam portion, be provided with the round hole on the gear plate 2, the round hole is provided with more than two, and this embodiment is eight, and evenly distributed.

Be provided with spring 16 and ball 15 on the outside piece 11, inside spring 16 one end supported outside piece 11, the outside compressed tightly through fixed plate 3, and the spring 16 other end supported ball 15 and fixes a position round hole on gear board 2, and every rotatory 45 degrees of center tube 1 drives gear board 2 and rotates simultaneously, and ball 15 can fix a position in the round hole of gear board 2, accomplishes a gear and adjusts.

The outer member 11 is screwed with the initial weight plate 6.

The invention is implemented as follows:

as shown in FIG. 2, the inner member 8 is first inserted into the center tube 1, one end of the insert 14 is inserted into the circular holes on both sides of the center tube 1, and the other end of the insert 14 passes through the circular hole on the fixing member 13 and is screwed to the inner side of the cam portion of the inner member 8. And a fixing piece 13 is inserted into the inner side piece 8 to be fixedly locked, the inner side of the gear position plate 2 corresponds to the shape of a cam part on the inner side piece 8, and the gear position plate 2 is clamped on the cam part on the inner side piece 8. As shown in fig. 1, the springs 16, the balls 15, are mounted at one end to the outer member 11 and at one end pressed by the fixing plate 3, and the inner balls 15 are positioned to the round holes on the shift gate 2, since the round holes of the present embodiment are provided in eight. So every 45 degrees of rotation of center tube 1, drive gear board 2 and rotate simultaneously, in ball 15 can fix a position the round hole of gear board 2, accomplish a gear and adjust, the gear is changeed and is observed to collocation digit ring 9.

The digital ring 9 is sleeved on the inner side part 8, and the inner side part 8 is provided with an opening for the gear ring to rotate. The gear 10 is rotatably connected and arranged inside the number ring 9, the outer side part 11 is internally provided with a gear ring matched with the gear, the gear 10 and number ring 9 assembly is combined with the inner side part 8 and outer side part 11, and when the outer side part 11 is placed on the bracket 19, the central pipe 1 is rotated; since the central tube 1 and the inner part 8 are locked to each other, the inner part 8 can be brought into rotation by means of a gear.

Two initial weight plates 6 are fixed to both sides of the outer member 11 by screw mounting, respectively, as shown in fig. 4, as initial adjustment weights of the adjustable dumbbell.

As shown in figure 1, the fixing plate 3 is arranged corresponding to the clamping grooves on the two sides of the central rod 7, the first screw shaft 4 and the second screw shaft 5 are inserted into the two sides of the central rod 7, the inner hole of the fixing plate 3 is completely filled, and the fixing plate 3 is fixedly connected with the central rod 7, as shown in figure 3, and the integral component is locked and fixed. When the central tube 1 is rotated, the insert block 14 is driven to rotate, the insert block 14 is contacted with the spiral grooves of the first spiral shaft 4 and the second spiral shaft 5, and the rotation of the insert block 14 enables the first spiral shaft 4 and the second spiral shaft 5 to simultaneously extend and retract in two directions, so that the effect of increasing and decreasing the weight sheets 17 is achieved.

The primary weight plates 6 are primary and secondary grooves, the weight plates 17 are provided with buckles 20 and primary and secondary grooves 21, as shown in fig. 5, the weight plates 17 are sequentially connected in a buckling manner, and the weight plates 17 are prevented from falling out along the axial direction; the first screw shaft 4 and the second screw shaft 5 are inserted into the middle circular holes of the newly added weight pieces 17 in a protruding manner as shown in fig. 5, ensuring that the weight pieces 17 do not fall out in the radial direction.

The card 12 and the outer side member 11 are installed in a matched mode, the inner side member 8 is driven to rotate by rotating the center tube 1, the card 12 can extend out and retract into the cam portion on the inner side member 8 as shown in figures 2 and 6, the cam portion can be inserted into the clamping groove on the semicircular weight piece 18 when the card extends out, as shown in figure 7, the weight piece 17 is placed when the weight piece 17 is needed, the weight piece 17 and the semicircular weight piece 18 can be lifted simultaneously, and the weight of the semicircular weight piece 18 is half of that of the weight piece 17. Meet different training weight requirements. When the card 12 is retracted, the semicircular weight plate 18 will rest on the bracket 19, and the weight adjustment operation is convenient and fast.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an adjustable dumbbell hand (hold) structure, includes center tube, inside spare, outside spare, first screw axis and second screw axis, its characterized in that: the inner side part, the fixing part and the central tube are fixedly connected through the inserting block, a digital ring is sleeved on the outer side of the inner side part, a gear is arranged on the inner side of the digital ring, an opening corresponding to the gear is arranged on the inner side part, two outer side parts are arranged on the outer side parts and correspond to the inner side parts, a gear ring matched with the gear is arranged on the inner side parts, a first screw shaft and a second screw shaft respectively penetrate through the middle of the outer side parts and the inner side parts to the inner side of the central tube from the left side and the right side, fixing plates are sleeved on the first screw shaft and the second screw shaft respectively, the inner parts of the first screw shaft and the second screw shaft are hollow, and the first screw shaft and the second screw shaft are sleeved on the outer side of the central tube, the section of the first screw shaft and the section of the second screw shaft are respectively set to be semicircular, the inner hole of the fixing plate is respectively set to be semicircular, the inner hole of the fixing plate corresponds to the clamping grooves on the two sides of the central rod and corresponds to the first screw shaft and the second screw shaft, the first screw shaft and the second screw shaft are respectively provided with a spiral thread, and the spiral thread corresponds to the insert block.

2. The adjustable dumbbell handle structure of claim 1, wherein: the outer side piece is provided with a clamping piece, the inner side piece is provided with a cam portion, and the cam portion corresponds to the clamping piece.

3. The adjustable dumbbell handle structure of claim 1, wherein: the inner side part is internally provided with a gear plate, the cam part of the inner side part is arranged corresponding to the inner hole of the gear plate, and the gear plate is provided with more than two round holes.

4. The adjustable dumbbell handle structure of claim 3, wherein: the outer side part is provided with a spring and a ball, one end of the spring is abutted to the inner part of the outer side part, and the other end of the spring is pressed through the fixing plate and abutted to the ball.

5. The adjustable dumbbell handle structure of claim 4, wherein: and an initial weight plate is arranged on the outer side part through a screw.