CN219879028U - Dumbbell - Google Patents
Dumbbell Download PDFInfo
- Publication number
- CN219879028U CN219879028U CN202320209822.5U CN202320209822U CN219879028U CN 219879028 U CN219879028 U CN 219879028U CN 202320209822 U CN202320209822 U CN 202320209822U CN 219879028 U CN219879028 U CN 219879028U
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- dumbbell
- sliding
- bearing
- shaft rod
- handle
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 29
- 238000013459 approach Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 3
- 210000003205 muscle Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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Abstract
The utility model provides a dumbbell, which comprises an operation part, a bearing part and a plurality of dumbbell pieces; the operating part is rotatably connected relative to the bearing part so that the bearing part bears one or more dumbbell plates; the operation part comprises a shaft rod and a sliding part, the end part of the shaft rod is connected with the bearing part, and the sliding part is sleeved outside the shaft rod and is in sliding connection with the shaft rod so that the bearing part bears dumbbell pieces with corresponding numbers; one of the outer peripheral wall of the shaft rod and the inner peripheral wall of the sliding piece comprises one or more guide blocks, the other one of the outer peripheral wall of the shaft rod and the inner peripheral wall of the sliding piece comprises one or more guide grooves, the guide grooves extend along the axial direction of the shaft rod, and the one or more guide blocks can slide in the one or more guide grooves to be directly connected with the shaft rod in a guiding way through the sliding piece, so that the process error between the two is low, and the positioning precision is high.
Description
Technical Field
The utility model relates to the field of fitness equipment, in particular to a dumbbell.
Background
The dumbbell is a simple device for strengthening muscle strength training, has a certain weight, and is convenient to use and simple in movement form; when a body-building person exercises with the dumbbell, the person needs to exercise with respect to different muscles, and different weights of the dumbbell are needed under different actions, but the person buying a plurality of dumbbell is inconvenient in that the dumbbell occupies a large space and the weight of the dumbbell is replaced. Weight-adjustable dumbbells have been developed in the market at present, for example, chinese patent application CN 207769061U discloses a weight-adjustable dumbbell, which comprises a dumbbell bar assembly, a dumbbell seat and a plurality of dumbbell pieces disposed on two sides of the dumbbell seat, wherein the dumbbell bar assembly comprises a handle assembly, a bearing assembly disposed on two sides of the handle assembly, and two hanging pieces movably connected to two ends of the handle assembly, and the two hanging pieces are driven by the handle assembly to approach or separate from each other. The pendant and the central shaft need be limited in the circumferential direction through corresponding rotation stopping mechanisms, the pendant comprises a rotation stopping block positioned on the peripheral wall of the pendant, a first rotation stopping groove is formed in the bearing component, the rotation stopping block is matched with the first rotation stopping groove to realize axial movement of the pendant along the central shaft, however, under the structure, the corresponding axial positioning needs to be carried out on the bearing component and the central shaft, and the process difficulty of opening the rotation stopping groove on the bearing component is greater, so that the positioning precision is influenced.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a dumbbell.
In order to solve the technical problems, the utility model provides a dumbbell, which comprises an operation part, a bearing part and a plurality of dumbbell pieces; the operating part is rotatably connected relative to the bearing part so that the bearing part bears one or more dumbbell plates;
the operation part comprises a shaft rod and a sliding part, the end part of the shaft rod is connected with the bearing part, and the sliding part is sleeved outside the shaft rod and is in sliding connection with the shaft rod so that the bearing part bears dumbbell pieces with corresponding numbers;
one of the outer peripheral wall of the shaft and the inner peripheral wall of the slider includes one or more guide blocks, and the other of the outer peripheral wall of the shaft and the inner peripheral wall of the slider includes one or more guide grooves extending in an axial direction of the shaft, the one or more guide blocks being slidable within the one or more guide grooves.
In a more preferred embodiment, one end of the inner peripheral wall of the slider includes the two guide blocks; the two guide blocks are arranged at a certain angle along the circumference of the sliding piece.
In a more preferred embodiment, the two guide blocks are arranged 180 degrees apart along the circumference of the slider.
In a more preferred embodiment, the operation part further comprises a handle sleeved outside the sliding part, and the handle is used for driving the sliding part to move along the axial direction of the shaft rod in a linkage way;
the peripheral wall of the sliding piece comprises a spiral groove which extends spirally, and the handle comprises an operation block connected with the spiral groove; when the handle rotates, the movement of the sliding piece is controlled through the connection of the operation block and the spiral groove.
In a more preferred embodiment, the bearing part comprises a bearing connecting part, the dumbbell piece comprises a slot with an upward opening, and the bearing connecting part is spliced with the slot; the slot also comprises a middle through hole, and the radial dimension of the middle through hole is larger than that of the slot; the sliding piece can be inserted into the middle through hole so that the bearing part correspondingly bears the corresponding dumbbell piece.
In a more preferred embodiment, the dumbbell comprises two carrying parts and two sliding parts; the two bearing parts are connected to the two ends of the operation part, and the two sliding parts slide on the two sides of the shaft rod in opposite directions close to or far away from each other so that the two bearing parts synchronously and correspondingly bear the dumbbell pieces in corresponding quantity.
In a more preferred embodiment, the operation part further comprises a handle sleeved outside the sliding parts, and the handle is used for driving the sliding parts to drive the two sliding parts to approach or separate from each other along the axial direction of the shaft rod;
the peripheral walls of the two sliding pieces comprise spiral grooves which extend spirally, and the handle comprises an operation block connected with the spiral grooves; when the handle rotates, the movement of the sliding piece is controlled through the connection of the operation block and the spiral groove; the spiral grooves of the two sliding pieces are opposite in rotation direction.
In a more preferred embodiment, the dumbbell further comprises a limiting disc connected with the operation part and a positioning piece connected with the bearing part; the limit rotating disc comprises a plurality of limit grooves which are arranged along the circumferential direction, and the positioning piece is detachably connected with the limit grooves.
In a more preferred embodiment, the operation part further comprises a handle sleeved outside the sliding part, and the handle is used for driving the sliding part to move along the axial direction of the shaft rod in a linkage way; the handle is connected with the limiting disc.
In a more preferred embodiment, the operation portion further includes a rotation positioning plate, the rotation positioning plate is located in the bearing portion, one or more balls are disposed in the bearing portion, the rotation positioning plate includes a limiting hole corresponding to the balls, and the balls are corresponding to the limiting hole.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
one of the outer peripheral wall of the shaft and the inner peripheral wall of the slider includes one or more guide blocks, and the other of the outer peripheral wall of the shaft and the inner peripheral wall of the slider includes one or more guide grooves extending along the axial direction of the shaft, the one or more guide blocks being slidable within the one or more guide grooves; the sliding piece is directly connected with the shaft rod in a guiding way, and the sliding piece and the shaft rod are simple in process and high in positioning precision.
Drawings
FIG. 1 is a schematic perspective view of a dumbbell in accordance with a preferred embodiment of this utility model;
FIG. 2 is a split schematic of a dumbbell in accordance with the preferred embodiment of this utility model;
FIG. 3 is an exploded isometric view of a dumbbell in accordance with the preferred embodiment of this utility model;
FIG. 4 is an exploded perspective view of the shaft and slider connection in the preferred embodiment of the present utility model, with the guide slot on the shaft and the guide block on the slider;
FIG. 5 is an exploded perspective view of a shaft, operating block, end cap, slider, turnbuckle, and first side portion of a preferred embodiment of the present utility model;
FIG. 6 is a schematic cross-sectional view of a dumbbell in accordance with the preferred embodiment of this utility model;
FIG. 7 is an exploded perspective view of the limiting plate and positioning member in accordance with the preferred embodiment of the present utility model;
FIG. 8 is an exploded perspective view of the shaft and slider connection with the preferred embodiment of the present utility model, with the guide slot on the slider and the guide block on the shaft;
fig. 9 is a schematic longitudinal cross-sectional view of a dumbbell in accordance with a preferred embodiment of this utility model.
Reference numerals: an operation unit 1; a shaft lever 11; a slider 12; a spiral groove 121; a handle 13; an operation block 131; an end cap 14; rotating the positioning plate 15; a ball 16; a carrying part 2; a first side portion 21; a cavity 211; a second side 22; a fixing plate 221; an outer cover 222; a load-bearing connection portion 23; a positioning member 24; a bolt 25; a base 3; a corresponding groove 31; a subslot 32; a bump 33; dumbbell sheet 4; a slot 41; a middle through hole 42; a limiting disc 5; a guide block 6; a guide groove 7.
Detailed Description
The utility model is further described below with reference to the drawings and detailed description.
Referring to fig. 1-9, a dumbbell includes an operation part 1, a carrying part 2, a base 3, and a plurality of dumbbell pieces 4; in this embodiment, the dumbbell includes two carrying portions 2, the two carrying portions 2 are respectively connected to two ends of the operating portion 1, and the operating portion 1 is rotatably connected with respect to the carrying portions 2, so that the carrying portions 2 can correspondingly carry one or more dumbbell pieces 4 in a controlled manner.
The operation part 1 comprises a shaft lever 11 and two sliding parts 12, the sliding parts 12 are sleeved outside the shaft lever 11, two ends of the shaft lever 11 are respectively and fixedly connected with the two bearing parts 2, the bearing parts 2 comprise a first side part 21, a second side part 22 and a bearing connecting part 23 connected between the first side part 21 and the second side part 22, a limited turntable 5 is arranged in the first side part 21, the limited turntable 5 is connected with the operation part 1, the first side part 21 further comprises a positioning part 24, and the positioning part 24 is detachably connected with the limited turntable 5; when the positioning piece 24 is connected with the rotation limiting plate 5, the relative rotation between the operation part 1 and the bearing part 2 is limited, and when the positioning piece 24 is disconnected with the rotation limiting plate 5, the relative rotation between the operation part 1 and the bearing part 2 is released.
The two ends of the shaft lever 11 are fixedly connected between the second side parts 22 of the two bearing parts 2; the operation part 1 further comprises a handle 13 sleeved outside the two sliding parts 12, and the handle 13 is in transmission connection with the sliding parts 12 so as to drive the two sliding parts 12 to approach or separate from each other; the operating part 1 further comprises end caps 14 connected to two ends of the handle 13, the end caps 14 are connected with the limiting disc 5 through positioning parts, the first side part 21 comprises a cavity 211 facing the operating part 1, the end caps 14 are rotationally covered on the opening of the cavity 211, the limiting disc 5 is rotationally arranged in the cavity 211, the positioning parts 24 are arranged on the side wall of the first side part 21, the positioning parts 24 can be operatively moved between a connection position and a non-connection position, and the positioning parts 24 can be reset through springs and the like.
The outer peripheral walls of the two sliding members 12 include a spiral groove 121, and the end of the handle 13 includes an operation block 131 connected to the spiral groove 121; the handle 13 is rotated to control the movement of the two sliders 12 through the connection of the operating block 131 with the spiral groove 121. In this embodiment, the spiral grooves 121 of the two sliding members 12 are opposite in rotation direction, so that the handle 13 can drive the two sliding members 12 to approach or separate from each other when rotated in a certain direction.
The sliding piece 12 can move along the axial direction of the shaft rod 11 so that the bearing part 2 correspondingly bears a corresponding number of dumbbell pieces 4; one of the outer circumferential wall of the shaft 11 and the inner circumferential wall of the slider 12 includes one or more guide blocks 6, the other of the outer circumferential wall of the shaft 11 and the inner circumferential wall of the slider 12 includes one or more guide grooves 7, the guide grooves 7 extend in the axial direction of the shaft 11, and the one or more guide blocks 6 are slidable within the one or more guide grooves 7.
In the present embodiment, one end of the inner peripheral wall of the slider 12 includes the guide block 6, and the outer peripheral wall of the shaft 11 includes the guide groove 7. One end of the inner peripheral wall of the slider 12 includes two guide blocks 6; two guide blocks 6 are arranged at an angle along the circumference of the slider 12. More specifically, the two guide blocks 6 are arranged 180 degrees apart along the circumferential direction of the slider 12; in some simple alternatives. Referring to fig. 8, the guide groove 7 is included in the inner peripheral wall of the slider 12, and the guide block 6 is included in the outer peripheral wall of the shaft 11.
The two slides 12 can be moved towards each other to retract completely into the handle 13, the two slides 12 can also be moved away from each other so that their ends correspond to the second side 22; the dumbbell piece 4 comprises a slot 41 with an upward opening, and the bearing connecting part 23 can be inserted into the slot 41 from top to bottom; the slot 41 further comprises an intermediate through hole 42, and the radial dimension of the intermediate through hole 42 is larger than the radial dimension of the slot 41; the sliding piece 12 can be inserted into the middle through hole 42 in a matching way so that the bearing part 2 correspondingly bears the corresponding dumbbell piece 4. Therefore, when the two sliding members 12 are fully retracted into the handle 13, the sliding members 12 are not connected with the middle through holes 42 of the dumbbell pieces 4 in a fitting manner, and when the ends of the two sliding members 12 correspond to the second side portions 22, the sliding members 12 are connected with the middle through holes 42 of all dumbbell pieces 4 in a fitting manner.
The base 3 comprises two corresponding grooves 31, and the two corresponding grooves 31 respectively correspond to the two bearing parts 2; the corresponding grooves 31 comprise a plurality of sub-grooves 32 which are uniformly distributed at intervals, and the dumbbell pieces 4 are correspondingly inserted into the sub-grooves 32; when the sliding piece 12 is fully retracted into the handle 13, the user grips the operation part 1 to lift the whole dumbbell, at this time, the dumbbell can be placed on the base 3 from top to bottom, and the bearing connection part 23 can be inserted into the slot 41 from top to bottom; the base 3 includes a protruding point 33, the protruding point 33 may link the positioning member 24 to release the connection between the positioning member 24 and the rotation limiting disc 5, at this time, the user may rotate the handle 13 to make the two sliding blocks move away from each other through the linkage between the operation block 131 and the spiral groove 121, until the sliding blocks are correspondingly inserted into the middle through holes 42 of the dumbbell pieces 4 of the corresponding number, the user may directly lift the dumbbell, at this time, the positioning member 24 is not abutted by the protruding point 33, the positioning member 24 is reset to be connected with the rotation limiting disc 5 through a spring, and the relative rotation between the operation portion 1 and the bearing portion 2 is limited.
The operation part 1 further comprises a rotation positioning plate 15 connected to the positioning part of the end cover 14, the rotation positioning plate 15 is located in the cavity 211, one or more balls 16 are further arranged between the rotation positioning plate 15 and the inner wall of the first side part 21, the rotation positioning plate 15 comprises a limiting hole corresponding to the balls, and the balls 16 can be correspondingly arranged on the limiting hole to limit the end cover 14 and the first side part 21.
The second side 22 includes a fixing plate 221 and an outer cover 222, the fixing plate 221, the bearing connection portion 23 and the first side 21 are fastened and connected by a plurality of bolts 25, the outer cover 222 is covered outside the fixing plate 221, and the bolts 25 serve to fixedly connect the first side 21, the second side 22 and the bearing connection portion 23.
The foregoing is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto, and any person skilled in the art will be able to make insubstantial modifications of the present utility model within the scope of the present utility model disclosed herein by this concept, which falls within the actions of invading the protection scope of the present utility model.
Claims (10)
1. The dumbbell is characterized by comprising an operation part, a bearing part and a plurality of dumbbell pieces; the operating part is rotatably connected relative to the bearing part so that the bearing part bears one or more dumbbell plates;
the operation part comprises a shaft rod and a sliding part, the end part of the shaft rod is connected with the bearing part, and the sliding part is sleeved outside the shaft rod and is in sliding connection with the shaft rod so that the bearing part bears dumbbell pieces with corresponding numbers;
one of the outer peripheral wall of the shaft and the inner peripheral wall of the slider includes one or more guide blocks, and the other of the outer peripheral wall of the shaft and the inner peripheral wall of the slider includes one or more guide grooves extending in an axial direction of the shaft, the one or more guide blocks being slidable within the one or more guide grooves.
2. The dumbbell of claim 1, wherein: one end of the inner peripheral wall of the sliding piece comprises two guide blocks; the two guide blocks are arranged at a certain angle along the circumference of the sliding piece.
3. The dumbbell of claim 2, wherein: the two guide blocks are arranged 180 degrees apart along the circumference of the slider.
4. The dumbbell of claim 1, wherein: the operating part further comprises a handle sleeved outside the sliding part, and the handle is used for driving the sliding part to move along the axial direction of the shaft rod by linking the sliding part;
the peripheral wall of the sliding piece comprises a spiral groove which extends spirally, and the handle comprises an operation block connected with the spiral groove; when the handle rotates, the movement of the sliding piece is controlled through the connection of the operation block and the spiral groove.
5. The dumbbell of claim 1, wherein: the bearing part comprises a bearing connecting part, the dumbbell piece comprises a slot with an upward opening, and the bearing connecting part is spliced with the slot; the slot also comprises a middle through hole, and the radial dimension of the middle through hole is larger than that of the slot; the sliding piece can be inserted into the middle through hole so that the bearing part correspondingly bears the corresponding dumbbell piece.
6. The dumbbell of claim 1 or 2 or 3 or 5, wherein: the dumbbell comprises two bearing parts and two sliding parts; the two bearing parts are connected to the two ends of the operation part, and the two sliding parts slide on the two sides of the shaft rod in opposite directions close to or far away from each other so that the two bearing parts synchronously and correspondingly bear the dumbbell pieces in corresponding quantity.
7. The dumbbell of claim 6, wherein: the operating part further comprises a handle sleeved outside the sliding parts, and the handle is used for driving the sliding parts to drive the two sliding parts to approach or depart from each other along the axial direction of the shaft rod;
the peripheral walls of the two sliding pieces comprise spiral grooves which extend spirally, and the handle comprises an operation block connected with the spiral grooves; when the handle rotates, the movement of the sliding piece is controlled through the connection of the operation block and the spiral groove; the spiral grooves of the two sliding pieces are opposite in rotation direction.
8. The dumbbell of claim 1, wherein: the dumbbell also comprises a limiting disc connected with the operation part and a positioning piece connected with the bearing part; the limit rotating disc comprises a plurality of limit grooves which are arranged along the circumferential direction, and the positioning piece is detachably connected with the limit grooves.
9. The dumbbell of claim 8, wherein: the operating part further comprises a handle sleeved outside the sliding part, and the handle is used for driving the sliding part to move along the axial direction of the shaft rod by linking the sliding part; the handle is connected with the limiting disc.
10. The dumbbell of claim 1, wherein: the operation part further comprises a rotation positioning plate, the rotation positioning plate is positioned in the bearing part, one or more balls are arranged in the bearing part, the rotation positioning plate comprises a limiting hole corresponding to the balls, and the balls are correspondingly arranged on the limiting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320209822.5U CN219879028U (en) | 2023-02-14 | 2023-02-14 | Dumbbell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320209822.5U CN219879028U (en) | 2023-02-14 | 2023-02-14 | Dumbbell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219879028U true CN219879028U (en) | 2023-10-24 |
Family
ID=88404301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320209822.5U Active CN219879028U (en) | 2023-02-14 | 2023-02-14 | Dumbbell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219879028U (en) |
-
2023
- 2023-02-14 CN CN202320209822.5U patent/CN219879028U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |