CN220424456U - Adjustable dumbbell - Google Patents

Abstract

The utility model provides an adjustable dumbbell, which comprises a dumbbell rod assembly and a plurality of dumbbell sheets hung on two sides of the dumbbell rod assembly, wherein two ends of the dumbbell rod assembly are provided with plug board assemblies which are used for being inserted into dumbbell sheet inserting holes, the plug board assemblies are provided with damping block mounting holes, third open grooves are formed in the bottoms of the plug board assemblies, damping blocks are mounted in the damping block mounting holes, and the bottoms of the damping blocks are propped against the bottoms of the dumbbell sheet inserting holes through the third open grooves. Can reduce the vibration of dumbbell piece and resonance between dumbbell piece and the picture peg subassembly in the use, improve user's use and experience and feel.

Description

Adjustable dumbbell

Technical Field

The utility model relates to the field of fitness equipment, in particular to an adjustable dumbbell.

Background

Dumbbell is widely used as a body-building apparatus, and particularly dumbbell which can conveniently adjust weight is favored by a plurality of body-building lovers. The user needs to adjust different weights or dumbbell pieces of different numbers frequently to realize multiple weight adjustment, but because the user uses adjustable dumbbell in-process frequently to adjust different weights and satisfies the training requirement, because there is the clearance between dumbbell piece and the dumbbell pole assembly when using, in the motion process, because the inertia reason, the dumbbell piece can appear relative upper and lower drunkenness on the dumbbell pole assembly, the phenomenon of rocking about can also appear in the arm lifting training in-process dumbbell piece, make the user feel no sense of security, and can let the user bear the impact force that the dumbbell piece rocked and produced when the bell piece rocked, the user worry constantly that the dumbbell piece can appear dropping the risk, influence the attention of training.

Disclosure of Invention

The utility model aims to provide an adjustable dumbbell, which realizes that a dumbbell piece is connected to a dumbbell rod assembly without shaking, and reduces the interference of shaking of the dumbbell piece to a user.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides an adjustable dumbbell, is in including dumbbell pole assembly, articulates a plurality of dumbbell piece of dumbbell pole assembly both sides, the both ends of dumbbell pole assembly are provided with and are used for inserting dumbbell piece inserted port inside and restriction dumbbell piece pivoted picture peg subassembly, and the picture peg subassembly is provided with the snubber block mounting hole, the snubber block mounting hole forms the third open slot in the bottom of picture peg subassembly, install the snubber block in the snubber block mounting hole, the bottom of snubber block through the third open slot with the bottom looks butt of the inserted port of dumbbell piece. The damping blocks can counteract the relative displacement of the dumbbell piece and the plugboard assembly through elastic deformation, so that shaking of the dumbbell piece and resonance between the dumbbell piece and the plugboard assembly in the use process are reduced, and the use experience of a user is improved.

Further, the dumbbell rod assembly comprises a bearing rod group, a sleeve is sleeved on the outer side of the bearing rod group, a raised line is arranged on the outer wall of the bearing rod group, and the raised line is abutted to the inner wall of the sleeve. On the premise of not obstructing the sliding of the bearing rod group in the sleeve, the shaking of the bearing rod group in the sleeve is reduced.

Further, the bearing rod group comprises a left rack bearing rod, a right rack bearing rod and a spur gear shaft, wherein the left rack bearing rod and the right rack bearing rod are identical in shape and size, the spur gear shaft is hinged with the inside of the sleeve, the left rack bearing rod and the right rack bearing rod are meshed with the spur gear shaft in the sleeve to be driven, a left rack part and a right rack part are respectively arranged on one side, opposite to the left rack bearing rod and the right rack bearing rod, of the left rack bearing rod and one side, opposite to the right rack bearing rod, of the right rack bearing rod are respectively provided with a left bearing part and a right bearing part; the convex strips are arranged in a plurality and are respectively positioned on the surfaces of the left bearing part and the right bearing part.

Further, the left rack portion and the right rack portion are respectively provided with a sliding groove, the sliding groove corresponding to the left rack bearing rod is provided with a sliding block on the right rack bearing rod, similarly, the sliding groove corresponding to the right rack bearing rod is provided with a sliding block on the left rack bearing rod, and the sliding blocks respectively slide in the corresponding sliding grooves. Can ensure smooth adjustment between the two rack bearing rods and reduce shaking between the bearing rods.

Further, the picture peg subassembly includes hollow picture peg, hollow picture peg is arranged in inserting the inserted hole of dumbbell piece, the inserted hole sets up to the V word shape, correspondingly, hollow picture peg's cross-section set up with inserted hole shape, size assorted V word shape, make hollow picture peg inserts when inserting the inserted hole is inside, hollow picture peg is more laminated with the inner wall of dumbbell piece inserted hole, reduces the space between the two, thereby hollow picture peg with thereby the tight fit between the dumbbell piece reduces the phenomenon that the dumbbell piece rocked about on the picture peg subassembly.

Further, a first open slot communicated with the inside is formed in the top of the plugboard assembly, an adjusting handle is arranged on the bearing rod group, and the adjusting handle penetrates through the first open slot and is fixedly connected with the bearing rod group; the first open slot department is provided with the location rack, be provided with a plurality of positioning tooth on the location rack, correspondingly, the bottom of adjusting handle be provided with location rack assorted location portion, when locating part is located the tooth root department of positioning tooth, the adjusting handle is locked.

Further, the adjusting handle comprises a hollow adjusting handle shell and a bolt, the bolt and nut part is arranged in the adjusting handle shell in a limiting mode, a part of screw rod of the bolt penetrates out of the bottom of the adjusting handle shell and is in threaded connection with the bearing rod group, a spring is sleeved on the bolt, one end of the spring is abutted to the bottom end of the nut of the bolt, and the other end of the spring is abutted to the bottom side of the inner wall of the adjusting handle shell. When the adjusting handle is lifted upwards, the adjusting handle automatically falls into the corresponding adjusting gear under the action of the restoring force of the spring, and the dumbbell piece is prevented from falling due to the fact that the adjusting handle is clamped between the two gears.

Further, the left rack bearing rod, the right rack bearing rod and the spur gear shaft are installed in the sleeve after being meshed, communication ports are respectively formed in the left bearing part and the right bearing part corresponding to the left rack bearing rod and the right rack bearing rod on the wall of the sleeve, and the left bearing part and the right bearing part are used for being connected with the dumbbell piece in a hanging mode through the communication ports.

Further, the dumbbell rod assembly further comprises a hollow tube, the hollow tube is sleeved outside the sleeve, and a handle tube made of rubber is sleeved outside the hollow tube. A hollow tube is arranged between the handle tube and the sleeve, so that the handle tube can be conveniently used for exerting force.

Further, the end parts of the two plugboard assemblies are respectively and fixedly connected with a handle balancing weight, so that the weight of the dumbbell bar assembly, which is not connected with the dumbbell piece in a hanging manner, is increased, and a training mode without hanging is increased.

According to analysis, the utility model discloses an adjustable dumbbell, wherein a raised line is arranged in a dumbbell rod assembly, shaking between a bearing rod group and a sleeve is reduced, in addition, a V-shaped structure which is the same as the shape of an insertion opening of a dumbbell sheet is arranged in an insertion plate assembly, shaking between the insertion plate assembly and the dumbbell sheet is reduced, a damping block is arranged in the insertion plate assembly and is abutted to the bottom of the insertion opening of the dumbbell sheet, shaking of the dumbbell sheet in the use process and resonance between the dumbbell sheet and the insertion plate assembly are reduced, so that the concern of a user in the use process is reduced, and the user is facilitated to concentrate on the training process.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. Wherein:

FIG. 1 is a schematic diagram of an embodiment of an adjustable dumbbell;

FIG. 2 is a schematic diagram of an unhooked dumbbell sheet according to one embodiment of the adjustable dumbbell;

FIG. 3 is an exploded view of a dumbbell bar assembly of one embodiment of the adjustable dumbbell;

FIG. 4 is a schematic illustration of an embodiment of an adjustable dumbbell with two load-bearing bars of the weight bar set disengaged;

FIG. 5 is a schematic view of the structure of a sleeve of one embodiment of an adjustable dumbbell;

FIG. 6 is a front view of a dumbbell sheet of one embodiment of the adjustable dumbbell;

FIG. 7 is a schematic view of a fork assembly of one embodiment of an adjustable dumbbell;

FIG. 8 is a schematic view of an insert plate assembly of one embodiment of an adjustable dumbbell showing the bottom structure thereof;

FIG. 9 is a schematic diagram of a damper block structure of one embodiment of an adjustable dumbbell;

FIG. 10 is a schematic cross-sectional view of the board assembly at I-I of FIG. 7;

FIG. 11 is a schematic cross-sectional view of a V-shaped hollow insert of an adjustable dumbbell embodiment insert assembly inserted into a V-shaped self-propelled dumbbell piece;

FIG. 12 is an enlarged schematic view of the circled portion of the dotted line A in FIG. 2;

FIG. 13 is an exploded view of an adjustment handle structure of one embodiment of an adjustable dumbbell;

FIG. 14 is a schematic cross-sectional view of an adjustment handle of an embodiment of an adjustable dumbbell;

reference numerals illustrate: 1-a dumbbell bar assembly; 11-a load-bearing bar set; 111-left rack bearing bar; 1111-left load-bearing section; 1112-left rack portion; 112-right rack load-bearing bar; 1121-right load-bearing section; 1122-right rack portion; 113-a straight gear shaft; 114-an adjustment handle; 1141-an adjustment handle housing; 1142-a bolt; 1143-capping; 1144-a spring; 1145-a positioning portion; 115-a chute; 116-a slider; 117-ribs; 12-sleeve; 121-a communication port; 122-a guide slot; 13-a board insertion assembly; 130-hollow spiles; 131-baffle; 132-a first open slot; 133-a central through hole; 134-a second open slot; 135-damper block mounting holes; 136-a third open slot; 137-positioning racks; 14-a shock absorption block; 15-grip balancing weight; 16-end caps; 17-hollow tube; 18-a handle sleeve; 2-dumbbell sheet; 21-an insertion opening; 22-a hooking groove; 3-a base.

Detailed Description

The utility model will be described in detail below with reference to the drawings in connection with embodiments. The examples are provided by way of explanation of the utility model and not limitation of the utility model. Indeed, it will be apparent to those skilled in the art that modifications and variations can be made in the present utility model without departing from the scope or spirit of the utility model. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield still a further embodiment. Accordingly, it is intended that the present utility model encompass such modifications and variations as fall within the scope of the appended claims and their equivalents.

In the description of the present utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present utility model and do not require that the present utility model must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "coupled," "connected," and "configured" as used herein are to be construed broadly and may be, for example, fixedly connected or detachably connected; can be directly connected or indirectly connected through an intermediate component; either a wired electrical connection, a radio connection or a wireless communication signal connection, the specific meaning of which terms will be understood by those of ordinary skill in the art as the case may be.

One or more examples of the utility model are illustrated in the accompanying drawings. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and description have been used to refer to like or similar parts of the utility model. As used herein, the terms "first," "second," and "third," etc. are used interchangeably to distinguish one component from another and are not intended to represent the location or importance of the individual components.

As shown in fig. 1 to 14, according to an embodiment of the present utility model, there is provided an adjustable dumbbell including a dumbbell bar assembly 1, eight dumbbell pieces 2 for hanging on both sides of the dumbbell bar assembly 1, and a base 3 for placing the dumbbell pieces 2.

The dumbbell assembly 1 comprises a bearing rod group 11, the bearing rod group 11 comprises a left rack bearing rod 111 and a right rack bearing rod 112 which are identical in shape and size, and a spur gear shaft 113 which is arranged between the left rack bearing rod 111 and the right rack bearing rod 112 and is in meshed transmission with the left rack bearing rod 111 and the right rack bearing rod 112, a left bearing part 1111 and a left rack part 1112 are respectively arranged on two sides of the left rack bearing rod 111, a right bearing part 1121 and a right rack part 1122 are respectively arranged on two sides of the right rack bearing rod 112, and the spur gear shaft 113 is in meshed transmission with the left rack part 1112 and the right rack part 1122. When the left rack bearing bar 111 slides to the left or right, the right rack bearing bar 112 slides to the left or right synchronously with respect to the left rack bearing bar 111. Wherein, one end of the upper surface of the left rack bearing rod 111 is fixedly provided with an adjusting handle 114 for manually operating and moving the left rack bearing rod 111. The sliding grooves 115 are respectively formed in the left rack portion 1112 of the left rack bearing rod 111 and the right rack portion 1122 of the right rack bearing rod 112, the sliding blocks 116 are arranged on the right rack bearing rod 112 corresponding to the sliding grooves 115 of the left rack bearing rod 111, similarly, the sliding blocks 116 are arranged on the left rack bearing rod 111 corresponding to the sliding grooves 115 of the right rack bearing rod 112, the corresponding sliding blocks 116 slide in the sliding grooves 115, smooth adjustment between the left rack bearing rod 111 and the right rack bearing rod 112 can be ensured, and shaking between the bearing rods is reduced.

The dumbbell rod assembly 1 further comprises a sleeve 12, the left rack bearing rod 111, the right rack bearing rod 112 and the straight gear shaft 113 are installed inside the sleeve 12 after being meshed, communication ports 121 are respectively formed in left bearing parts 1111 and right bearing parts 1121 corresponding to the left rack bearing rod 111 and the right rack bearing rod 112 on the wall of the sleeve 12, and the left bearing parts 1111 and the right bearing parts 1121 are used for being connected with the dumbbell piece 2 in a hanging mode through the communication ports 121. A guide groove 122 is provided on the wall of the sleeve 12 corresponding to the position of the adjustment handle 114 on the left rack bar 111, so that the adjustment handle 114 can slide in the guide groove 122 along the axial direction of the sleeve 12.

In order to reduce the shaking of the bearing rod group 11 in the sleeve 12, three raised strips 117 are respectively arranged on the surfaces of the left bearing part 1111 of the left rack bearing rod 111 and the right bearing part 1121 of the right rack bearing rod 112, and the raised strips 117 are abutted against the inner wall of the sleeve 12, so that the shaking of the bearing rod group 11 in the sleeve 12 is reduced on the premise of not obstructing the sliding of the bearing rod group 11 in the sleeve 12.

An open insertion slot 21 is arranged in the middle of the dumbbell piece 2, a hanging slot 22 is arranged on one side in the insertion slot 21, the bearing rod group 11 is inserted from the insertion slot 21, and when the left bearing part 1111 or the right bearing part 1121 is positioned in the hanging slot 22, the corresponding dumbbell piece 2 can be hung by the bearing rod group 11.

Two ends of the assembly of the bearing rod group 11 and the sleeve 12 are respectively fixedly provided with a plugboard component 13 for being inserted into the dumbbell piece 2. The insert plate assembly 13 comprises a hollow insert plate 130, two ends of the hollow insert plate 130 are respectively provided with a baffle 131, the hollow insert plate 130 is inserted from the insertion port 21 of the dumbbell sheet 2, and a plurality of dumbbell sheets 2 are arranged between the two baffles 131 on the hollow insert plate 130. The top of the hollow insert plate 130 is provided with a first open slot 132 communicated with the inside, the middle position of the hollow insert plate 130 is provided with a central through hole 133 penetrating the hollow insert plate 130 and the baffles 131 at the two ends thereof, the central through hole 133 penetrates the hollow insert plate 130 and forms a second open slot 134 on one side plate surface of the hollow insert plate 130, and the first open slot 132 is communicated with the central through hole 133. The two plugboard components 13 are sleeved at two ends of the assembly of the bearing rod group 11 and the sleeve 12 through the central through holes 133, and the opening directions of the second open slots 134 of the two plugboard components 13 are opposite when the two plugboard components 13 are installed, so that the second open slots 134 correspond to the communication ports 121 of the sleeve 12, and the bearing part of the bearing rod group 11 passes through the corresponding second open slots 134 to be connected with the dumbbell piece 2 in a hanging manner; meanwhile, the guide groove 122 of the sleeve 12 corresponds to the first open groove 132, so that the adjustment handle 114 adjusts the load-bearing bar set 11 outside the card assembly 13 through the first open groove 132. The lower part of the center through hole 133 on the inserting plate assembly 13 is also provided with a damper block mounting hole 135 penetrating through the hollow inserting plate 130 and the baffles 131 at two ends of the hollow inserting plate 130, a third opening groove 136 is formed at the bottom side of the hollow inserting plate 130 through the damper block mounting hole 135, a damper block 14 is mounted in the damper block mounting hole 135, the damper block 14 is made of a material with a buffering damping effect, when the inserting plate assembly 13 is inserted into the inserting hole 21 of the dumbbell piece 2, the bottom of the damper block 14 is abutted against the bottom of the inserting hole 21 through the third opening groove 136, and in the using process, when the dumbbell piece 2 and the inserting plate assembly 13 generate relative motion under the inertia effect, the damper block 14 can counteract the relative displacement of the dumbbell piece 2 and the inserting plate assembly 13 through elastic deformation, so that shaking of the dumbbell piece 2 in the using process and resonance between the dumbbell piece 2 and the inserting plate assembly 13 are reduced, and the using experience of a user is improved.

In order to further reduce the shake between the insert plate assembly 13 and the dumbbell sheet 2, as shown in fig. 10-11, the insert hole 21 of the dumbbell sheet 2 is arranged in a V-shape, and correspondingly, the cross section of the hollow insert plate 130 is arranged in a V-shape matched with the shape and the size of the insert hole 21, so that when the hollow insert plate 130 is inserted into the insert hole 21, the hollow insert plate 130 is more attached to the inner wall of the insert hole 21 of the dumbbell sheet 2, and the gap between the hollow insert plate 130 and the inner wall of the insert hole 21 of the dumbbell sheet 2 is reduced, so that the shake phenomenon of the dumbbell sheet 2 left and right on the insert plate assembly 13 is reduced.

In order that the dumbbell sheet will not fall during exercise by the user, a detent rack 137 is provided on insert plate assembly 13 at a location in first open slot 132 for locking the corresponding sliding position of adjustment handle 114. Four teeth are arranged on the positioning rack 137, and correspond to four-gear adjusting positions respectively, and when the adjusting handle 114 moves for one adjusting position, the left end and the right end of the corresponding bearing rod group 11 are correspondingly increased or decreased to connect one dumbbell piece 2 respectively.

As shown in fig. 13-14, the adjusting handle 114 includes a hollow adjusting handle housing 1141, a bolt 1142, the bolt 1142 is mounted in the adjusting handle housing 1141, and a part of the screw rod of the bolt 1142 penetrates out of the bottom of the adjusting handle housing 1141 to be in threaded connection with the left rack bearing rod 111, a cap 1143 is provided at the upper end of the adjusting handle housing 1141, when the cap 1143 is provided at the upper end of the adjusting handle housing 1141, the nut part of the bolt 1142 is limited in the adjusting handle housing 1141, further, a spring 1144 is sleeved on the bolt 1142, one end of the spring 1144 is abutted against the bottom end of the nut of the bolt 1142, the other end of the spring 1144 is abutted against the bottom side of the inner wall of the adjusting handle housing 1141, when the adjusting handle housing 1141 is lifted upward, the spring 1144 is compressed, and when the adjusting handle housing 1141 is released, the adjusting handle housing 1141 moves downward under the restoring force of the spring 1144. Further, the top of the four teeth of the positioning rack 137 is provided with a smooth rounded design, the bottom of the outer side of the adjustment handle housing 1141 is provided with a positioning portion 1145 matching the positioning rack 137, and when the positioning portion 1145 is located at the tooth root of the positioning tooth, the adjustment handle is locked. Further, the bottom end of the positioning portion 1145 is provided with a rounded corner, so that the adjustment handle 114 can slide between the adjustment gears on the positioning rack 137 conveniently, when the adjustment handle 114 is lifted upwards and released, the adjustment handle 114 automatically falls into the corresponding adjustment gear under the action of the restoring force of the spring 1144, and the adjustment handle 114 is prevented from being clamped between the two gears, so that the dumbbell piece 2 falls.

The dumbbell rod assembly 1 further comprises a hollow tube 17, the hollow tube 17 is sleeved outside the sleeve 12, a grip tube 18 made of rubber is sleeved outside the hollow tube 17, and the hollow tube 17 is arranged between the grip tube 18 and the sleeve 12, so that the grip tube 18 can be conveniently used for exerting force.

Further, the end parts of the two plugboard assemblies 13 are respectively and fixedly connected with a handle balancing weight 15, so that the weight of the dumbbell bar assembly 1, which is not connected with the dumbbell piece 2, is increased, and a training mode without connection is increased. The end of the handle balancing weight 15 is also fixedly connected with an end cover 16 for hiding the screw at the end of the handle balancing weight 15, so that the whole dumbbell is more attractive.

The adjustable dumbbell further comprises a base 3, wherein a plurality of dumbbell piece grooves are formed in the base 3 and used for placing a plurality of dumbbell pieces 2, and the dumbbell rod assembly 1 is convenient to insert and adjust weight.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

1. the two rack bearing bars of the bearing bar group 11 are respectively provided with a sliding groove 115 and a sliding block 116, and the sliding block 116 on one rack bearing bar slides in the sliding groove 115 on the other rack bearing bar, so that smooth adjustment between the two rack bearing bars can be ensured, and shaking between the bearing bars is reduced.

2. The outer surface of the bearing rod group 11 is provided with a plurality of raised strips 117 which are used for being abutted with the inner wall of the sleeve 12, and the shaking of the bearing rod group 11 in the sleeve 12 is reduced on the premise that the sliding of the bearing rod group 11 in the sleeve 12 is not hindered.

3. The insertion opening 21 of the dumbbell sheet 2 is designed into a V shape, and correspondingly, the cross section of the hollow insertion plate 130 is arranged into a V shape matched with the shape and the size of the insertion opening 21, so that when the hollow insertion plate 130 is inserted into the insertion opening 21, the hollow insertion plate 130 is more attached to the inner wall of the insertion opening 21, the gap between the hollow insertion plate 130 and the insertion opening 21 is reduced, and the shaking phenomenon of the dumbbell sheet 2 on the insertion plate assembly 13 is reduced.

4. The picture peg subassembly 13 is provided with snubber block mounting hole 135, snubber block mounting hole 135 forms third open slot 136 in the bottom side of hollow picture peg 130, install snubber block 14 in snubber block mounting hole 135, snubber block 14 is made for the material that has buffering shock attenuation effect, when picture peg subassembly 13 inserts in the inserted hole 21 of dumbbell piece 2, the bottom of snubber block 14 passes through third open slot 136 and the bottom butt of inserted hole 21, snubber block 14 can offset the relative displacement between dumbbell piece 2 and the picture peg subassembly 13 through elastic deformation, thereby the vibration of dumbbell piece 2 and the resonance between dumbbell piece 2 and the picture peg subassembly 13 in the reduction use, the user experience is felt in the improvement.

5. The first open slot 132 department of picture peg subassembly 13 sets up positioning rack 137, and every tooth top of positioning rack 137 all sets up the fillet, correspondingly, the bottom in the adjustment handle shell 1141 outside sets up to with positioning rack 137 assorted fillet, and convenient adjustment handle 114 slides between each adjustment gear on positioning rack 137, in addition, cup joints spring 1144 on the inside bolt 1142 of adjustment handle 114, and convenient adjustment handle 114 is upwards lifted in the automatic regulation gear that falls into under the restoring force effect of spring 1144, thereby prevent adjustment handle 114 card between two gears and lead to dumbbell piece 2 to drop.

Compared with the prior art, the adjustable dumbbell disclosed by the utility model has the advantages that the shaking of the joint of the dumbbell rod assembly and the dumbbell piece in the dumbbell rod assembly is small, the worry of a user in the use process is reduced, and the user is facilitated to concentrate on the training process.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides an adjustable dumbbell, is in including dumbbell pole assembly (1), articulates a plurality of dumbbell piece (2) of dumbbell pole assembly (1) both sides, its characterized in that, the both ends of dumbbell pole assembly (1) are provided with and are used for inserting dumbbell piece (2) inserted hole (21) inside and restriction dumbbell piece (2) pivoted picture peg subassembly (13), picture peg subassembly (13) are provided with snubber block mounting hole (135), snubber block mounting hole (135) form third open slot (136) in the bottom of picture peg subassembly (13), install snubber block (14) in snubber block mounting hole (135), the bottom of snubber block (14) through third open slot (136) with the bottom looks butt of inserted hole (21) of dumbbell piece (2).

2. The adjustable dumbbell of claim 1,

the dumbbell rod assembly (1) comprises a bearing rod group (11), a sleeve (12) is sleeved on the outer side of the bearing rod group (11), a raised line (117) is arranged on the outer wall of the bearing rod group (11), and the raised line (117) is in butt joint with the inner wall of the sleeve (12).

3. The adjustable dumbbell of claim 2,

the bearing rod group (11) comprises a left rack bearing rod (111) and a right rack bearing rod (112) which are identical in shape and size, and a spur gear shaft (113), wherein the spur gear shaft (113) is hinged with the inside of the sleeve (12), the left rack bearing rod (111) and the right rack bearing rod (112) are meshed with the spur gear shaft (113) in the inside of the sleeve (12) for transmission, the left rack part (1112) and the right rack part (1122) are respectively arranged on the opposite sides of the left rack bearing rod (111) and the right rack bearing rod (112), and the left bearing part (1111) and the right bearing part (1121) are respectively arranged on the opposite sides of the left rack bearing rod (111) and the right rack bearing rod (112);

the convex strips (117) are arranged in a plurality and are respectively positioned on the surfaces of the left bearing part (1111) and the right bearing part (1121).

4. The adjustable dumbbell of claim 3,

the left rack part (1112) and the right rack part (1122) are respectively provided with a sliding groove (115), the sliding groove (115) of the right rack bearing rod (112) corresponding to the left rack bearing rod (111) is provided with a sliding block (116), and similarly the sliding groove (115) of the left rack bearing rod (111) corresponding to the right rack bearing rod (112) is provided with a sliding block (116), and the corresponding sliding blocks (116) slide in the corresponding sliding grooves (115).

5. The adjustable dumbbell of claim 1,

the insertion plate assembly (13) comprises a hollow insertion plate (130), the hollow insertion plate (130) is used for being inserted into an insertion opening (21) of the dumbbell piece (2), the insertion opening (21) is arranged in a V-shaped mode, correspondingly, the cross section of the hollow insertion plate (130) is arranged in a V-shaped mode matched with the shape and the size of the insertion opening (21), and when the hollow insertion plate (130) is inserted into the insertion opening (21), the hollow insertion plate (130) is tightly matched with the dumbbell piece (2).

6. The adjustable dumbbell of claim 2,

the top of the plugboard assembly (13) is provided with a first open slot (132) communicated with the inside, the bearing rod group (11) is provided with an adjusting handle (114), and the adjusting handle (114) passes through the first open slot (132) to be fixedly connected with the bearing rod group (11);

the first open slot (132) department is provided with positioning rack (137), be provided with a plurality of positioning tooth on positioning rack (137), correspondingly, the bottom of adjustment handle (114) be provided with positioning rack (137) assorted location portion (1145), when location portion (1145) are located positioning tooth's tooth root department, adjustment handle (114) are locked.

7. The adjustable dumbbell of claim 6, wherein,

the adjusting handle (114) comprises a hollow adjusting handle shell (1141) and a bolt (1142), a nut part of the bolt (1142) is arranged in the adjusting handle shell (1141) in a limiting mode, a part of a screw rod of the bolt (1142) penetrates out of the bottom of the adjusting handle shell (1141) and is in threaded connection with the bearing rod group (11), a spring (1144) is sleeved on the bolt (1142), one end of the spring (1144) is abutted to the bottom end of a nut of the bolt (1142), and the other end of the spring (1144) is abutted to the bottom side of the inner wall of the adjusting handle shell (1141).

8. The adjustable dumbbell of claim 3,

the novel dumbbell comprises a left rack bearing rod (111), a right rack bearing rod (112) and a spur gear shaft (113), wherein the right rack bearing rod (112) and the spur gear shaft (113) are meshed and then mounted in the sleeve (12), the left rack bearing rod (111) and the right rack bearing rod (112) correspond to each other on the wall of the sleeve (12), a left bearing part (1111) and a right bearing part (1121) of the left rack bearing rod (111) are respectively provided with a communication port (121) for the left bearing part (1111) and the right bearing part (1121) are connected with the dumbbell piece (2) in a hanging mode through the communication ports (121).

9. The adjustable dumbbell of claim 8,

the dumbbell rod assembly (1) further comprises a hollow tube (17), the hollow tube (17) is sleeved outside the sleeve (12), and a handle tube (18) made of rubber is sleeved outside the hollow tube (17).

10. The adjustable dumbbell of claim 1,

the end parts of the two plugboard assemblies (13) are respectively and fixedly connected with handle balancing weights (15).