CN203899028U - Spline installation type dumbbell - Google Patents
Spline installation type dumbbell Download PDFInfo
- Publication number
- CN203899028U CN203899028U CN201420241734.4U CN201420241734U CN203899028U CN 203899028 U CN203899028 U CN 203899028U CN 201420241734 U CN201420241734 U CN 201420241734U CN 203899028 U CN203899028 U CN 203899028U
- Authority
- CN
- China
- Prior art keywords
- holding rod
- dumbbell
- spline
- section
- locknut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The utility model discloses a spline installation type dumbbell, which belongs to the field of fitness equipment, and substantially solves the problem that dumbbell pieces in traditional dumbbells are easy to loose at present. The spline installation type dumbbell structurally comprises adapter nuts, dumbbell pieces and a holding rod, wherein an outer spline structure is arranged on a segment of surface of the inner sides of the two ends of the holding rod, the dumbbell pieces are arranged on the two ends of the holding rod through inner splines which are arranged on a center hole in the axial direction, a segment of thread rod is arranged on the outer sides of the two ends of the holding rod, and the adapter nuts are arranged on the two ends of the holding rod by being matched with threads. The spline installation type dumbbell enables the dumbbell pieces and the holding rod not to relatively rotate by matching a spline structure during the use process, thereby being not capable of causing the adapter nuts on the two ends to loose, and enhancing use safety.
Description
Technical field
The utility model relates to a kind of spline installing type dumbbell, belongs to body-building apparatus field.
Background technology
Dumbbell is a kind of for strengthening the simple equipment of muscle strength training.Its main material is cast iron, some outsourcing one deck rubber.Its purposes is for exercise for power, the training of muscle composite move.Because motor paralysis, pain, long-term immobilization etc. cause the low patient of muscular strength, hand-held dumbbell, can utilize the weight of dumbbell to carry out resistive drag force active movement, training muscular strength.Dumbbell can be trained single muscle; As gain in weight, need the coordination of multiple muscle, also can be used as a kind of muscle composite move training.A kind of auxiliary appliance of weight lifting and exercise.Have a fixed weight with two kinds of adjustable weight.1. fixed weight dumbbell.Cast with the pig iron, centre is iron staff, and two ends are solid ball exercise.2. adjustable dumbbell.The similar barbell dwindling, puts the round iron plate that weight does not wait at short iron staff two ends, be about 40～45 centimetres, can adjustable weight when weight lifting or exercise.Often do dumbbell exercise, can strengthen the muscle strength of parts of body.Except iron dumbbell, also has dumbbell wooden or made of plastic.When exercise, utilize the knock of wooden dumbbell or plastics dumbbell, cultivate practitioner's harmony and timing.Also wooden dumbbell can be weaved into complete gymnastic movement performance.Holding rod end in current traditional dumbbell adopts polished rod structural design, and dumbbell plate centre bore design for unthreaded hole simultaneously, thereby therefore in use because external influence power usually can make to relatively rotate to occur to become flexible between dumbbell plate and holding rod to cause potential safety hazard.
Utility model content
The utility model adopts polished rod structural design for the holding rod end in current traditional dumbbell; simultaneously dumbbell plate centre bore designs for unthreaded hole; therefore, in use because external influence power usually can make to relatively rotate thereby the loosening problem that causes potential safety hazard occurs between dumbbell plate and holding rod, design a kind of spline installing type dumbbell.
The technical scheme in the invention for solving the technical problem is:
This spline installing type dumbbell comprises locknut, dumbbell plate, holding rod; Holding rod two ends inner sides one section surface has external splines structure, and dumbbell plate is arranged on holding rod two ends by centre hole axis to the internal spline arranging, and one section, outside, holding rod two ends is threaded rod, and locknut is arranged on holding rod two ends by threaded engagement.
There is one section of annulus projection outer spline section inside edge, described holding rod two ends, and described annulus projection diameter is greater than dumbbell plate centre bore internal diameter.
Described dumbbell plate centre hole axis is to internal spline structure is set, and described internal spline structure size matches with inner side, holding rod two ends one section surface external splines physical dimension.
Described locknut internal whorl hole dimension matches with the threaded rod size in one section, outside, holding rod two ends, and there is loop configuration locknut end, and described loop configuration endoporus aperture is greater than the threaded rod external diameter in one section, outside, holding rod two ends.
The utility model has the following advantages:
1. the utility model is novel unique, thereby makes can not relatively rotate and can not cause the loosening of two ends locknut between dumbbell plate and holding rod by the cooperation of spline structure in use procedure, has strengthened the security using.
2. material is cheap, and cost of manufacture is low, and application is wide.
Brief description of the drawings
Fig. 1 is the utility model part sectioned view.
Fig. 2 is the utility model entirety profile.
Fig. 3 is the utility model overall structure figure.
Fig. 4 is the utility model locknut structure chart.
Fig. 5 is the utility model holding rod structure chart.
Fig. 6 is the utility model dumbbell plate structure chart.
In figure: 1 locknut, 2 dumbbell plates, 3 holding rods.
Detailed description of the invention
As shown in Fig. 1,2,3,4,5,6: a kind of spline installing type dumbbell, its structure comprises: locknut 1, dumbbell plate 2, holding rod 3; Holding rod 3 two ends inner sides one section surfaces have external splines structure, and dumbbell plate 2 is arranged on holding rod 3 two ends by centre hole axis to the internal spline arranging, and one section, holding rod 3 outside, two ends is threaded rod, and locknut 1 is arranged on holding rod 3 two ends by threaded engagement.
There is one section of annulus projection described holding rod 3 outer spline section inside edges, two ends, and described annulus projection diameter is greater than dumbbell plate 2 centre bore internal diameters.
Described dumbbell plate 2 centre hole axis are to internal spline structure is set, and described internal spline structure size matches with holding rod 3 inner side, two ends one section surface external splines physical dimensions.
Described locknut 1 internal whorl hole dimension matches with the threaded rod size in one section, holding rod 3 outside, two ends, and there is loop configuration locknut 1 end, and described loop configuration endoporus aperture is greater than the threaded rod external diameter in one section, holding rod 3 outside, two ends.
The described spline installing type of the present embodiment dumbbell, when use, the internal splined hole of dumbbell plate 2 centers is passed on the external splines bar at holding rod 3 two ends, treat after dumbbell plate 2 is interted, locknut 1 loop configuration to be inwards arranged on the threaded rod at holding rod 3 two ends and screw, now can use.
Above-described embodiment is a kind of preferred scheme just, and significantly, this embodiment can do other and change, as:
Between dumbbell plate 2 and holding rod 3 for flat key coordinates.
Though the scheme after above-mentioned change is superior not as the present embodiment, is obviously better than also prior art.
The above, be only detailed description of the invention of the present utility model, and in the scope that those of ordinary skill in the art disclose at the utility model, the variation that can expect easily, within all should being encompassed in the protection domain of utility model.
Claims (4)
1. a spline installing type dumbbell, structure comprises: locknut, dumbbell plate, holding rod; It is characterized in that: holding rod two ends inner sides one section surface has external splines structure, dumbbell plate is arranged on holding rod two ends by centre hole axis to the internal spline arranging, and one section, outside, holding rod two ends is threaded rod, and locknut is arranged on holding rod two ends by threaded engagement.
2. a kind of spline installing type dumbbell according to claim 1, is characterized in that: there is one section of annulus projection outer spline section inside edge, holding rod two ends, and described annulus projection diameter is greater than dumbbell plate centre bore internal diameter.
3. a kind of spline installing type dumbbell according to claim 1, is characterized in that: dumbbell plate centre hole axis is to internal spline structure is set, and described internal spline structure size matches with inner side, holding rod two ends one section surface external splines physical dimension.
4. a kind of spline installing type dumbbell according to claim 1, it is characterized in that: locknut internal whorl hole dimension matches with the threaded rod size in one section, outside, holding rod two ends, there is loop configuration locknut end, and described loop configuration endoporus aperture is greater than the threaded rod external diameter in one section, outside, holding rod two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241734.4U CN203899028U (en) | 2014-05-08 | 2014-05-08 | Spline installation type dumbbell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241734.4U CN203899028U (en) | 2014-05-08 | 2014-05-08 | Spline installation type dumbbell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203899028U true CN203899028U (en) | 2014-10-29 |
Family
ID=51773321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420241734.4U Expired - Fee Related CN203899028U (en) | 2014-05-08 | 2014-05-08 | Spline installation type dumbbell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203899028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507967A (en) * | 2019-05-04 | 2021-10-15 | 刘平 | Slidable dumbbell device with weight adjusting keys |
-
2014
- 2014-05-08 CN CN201420241734.4U patent/CN203899028U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507967A (en) * | 2019-05-04 | 2021-10-15 | 刘平 | Slidable dumbbell device with weight adjusting keys |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150508 |
|
| EXPY | Termination of patent right or utility model |