CN203971308U - Back board structure on a kind of body-building board - Google Patents
Back board structure on a kind of body-building board Download PDFInfo
- Publication number
- CN203971308U CN203971308U CN201420341694.0U CN201420341694U CN203971308U CN 203971308 U CN203971308 U CN 203971308U CN 201420341694 U CN201420341694 U CN 201420341694U CN 203971308 U CN203971308 U CN 203971308U
- Authority
- CN
- China
- Prior art keywords
- backboard
- groove
- cover plate
- arc surface
- spring
- 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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Abstract
The utility model discloses the back board structure on a kind of body-building board, comprise the first backboard, in the middle of described the first backboard, be provided with two grooves, described groove and the first carupace width are wide, the the first backboard place, upper end that is positioned at this groove is provided with a cover plate, described cover plate is flexibly connected by between the first pin and the first backboard, described the first backboard upper surface is arc surface, the upper surface of groove is arc surface, cover plate is identical with the arc surface radius of groove, the inside grooves that is positioned at the first backboard is provided with a container cavity, be positioned at this container cavity and be provided with a spring, described spring height is higher than the end face of the first backboard, the lower end of described the first backboard is movably equipped with the second backboard by the second pin, back plate design is become buffer structure by the utility model, utilizes the spring on backboard to reduce the active force between back and backboard, increases comfort level, and backboard is divided into two sections of activity relatively, increases backboard toughness, increases comfort.
Description
Technical field
The utility model relates to the back board structure on a kind of body-building board.
Background technology
Body-building board is a kind of body-building apparatus of training human body abdominal muscles, and in the time that back contacts with body-building board, back is a bit maximum often to the stress of body-building board, and then after having taken exercise of a specified duration, that is very uncomfortable at back.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of two sections of backboard being divided into activity relatively, increases backboard toughness, the back board structure on the body-building board of increase comfort.
The utility model is achieved through the following technical solutions: the back board structure on a kind of body-building board, comprise the first backboard, in the middle of described the first backboard, be provided with two grooves, described groove and the first carupace width are wide, the the first backboard place, upper end that is positioned at this groove is provided with a cover plate, described cover plate is flexibly connected by between the first pin and the first backboard, described the first backboard upper surface is arc surface, the upper surface of groove is arc surface, cover plate is identical with the arc surface radius of groove, the inside grooves that is positioned at the first backboard is provided with a container cavity, be positioned at this container cavity and be provided with a spring, described spring height is higher than the end face of the first backboard, the lower end of described the first backboard is movably equipped with the second backboard by the second pin.
As preferred technical scheme, the backboard opposite of described the second pin is provided with a tight locking button, for locking the first backboard and the second backboard.
As preferred technical scheme, described spring is dismountable to be placed in container cavity.
As preferred technical scheme, described the second backboard is " protruding " font.
The beneficial effects of the utility model are: back plate design is become buffer structure by the utility model, utilize the spring on backboard to reduce the active force between back and backboard, increase comfort level, and backboard is divided into two sections of activity relatively, increase backboard toughness, increase comfort.
Brief description of the drawings
For ease of explanation, the utility model is described in detail by following specific embodiment and accompanying drawing.
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is top view of the present utility model.
Detailed description of the invention
As depicted in figs. 1 and 2, back board structure on a kind of body-building board of the present utility model, comprise the first backboard 1, in the middle of described the first backboard 1, be provided with two grooves, described groove and the first backboard 1 width are wide, the first backboard 1 place, upper end that is positioned at this groove is provided with a cover plate 5, described cover plate 5 is flexibly connected by between the first pin 7 and the first backboard 1, described the first backboard 1 upper surface is arc surface, the upper surface of groove is arc surface, cover plate 5 is identical with the arc surface radius of groove, the inside grooves that is positioned at the first backboard 1 is provided with a container cavity 4, be positioned at this container cavity 4 and be provided with a spring 3, described spring 3 height are higher than the end face of the first backboard 1, the lower end of described the first backboard 1 is movably equipped with the second backboard 2 by the second pin 6.
As preferred technical scheme, the backboard opposite of described the second pin 6 is provided with a tight locking button 8, for locking the first backboard 1 and the second backboard 2.
As preferred technical scheme, dismountable being placed in container cavity of described spring 3.
As preferred technical scheme, described the second backboard 2 is " protruding " font.
The beneficial effects of the utility model are: back plate design is become buffer structure by the utility model, utilize the spring on backboard to reduce the active force between back and backboard, increase comfort level, and backboard is divided into two sections of activity relatively, increase backboard toughness, increase comfort
The above, be only detailed description of the invention of the present utility model, but protection domain of the present utility model is not limited to this, and any variation of expecting without creative work or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims were limited.
Claims (4)
1. the back board structure on a body-building board, comprise the first backboard, it is characterized in that: in the middle of described the first backboard, be provided with two grooves, described groove and the first carupace width are wide, the the first backboard place, upper end that is positioned at this groove is provided with a cover plate, described cover plate is flexibly connected by between the first pin and the first backboard, described the first backboard upper surface is arc surface, the upper surface of groove is arc surface, cover plate is identical with the arc surface radius of groove, the inside grooves that is positioned at the first backboard is provided with a container cavity, be positioned at this container cavity and be provided with a spring, described spring height is higher than the end face of the first backboard, the lower end of described the first backboard is movably equipped with the second backboard by the second pin.
2. the back board structure on body-building board according to claim 1, is characterized in that: the backboard opposite of described the second pin is provided with a tight locking button, for locking the first backboard and the second backboard.
3. the back board structure on body-building board according to claim 1, is characterized in that: described spring is dismountable to be placed in container cavity.
4. the back board structure on body-building board according to claim 1, is characterized in that: described the second backboard is " protruding " font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420341694.0U CN203971308U (en) | 2014-06-25 | 2014-06-25 | Back board structure on a kind of body-building board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420341694.0U CN203971308U (en) | 2014-06-25 | 2014-06-25 | Back board structure on a kind of body-building board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203971308U true CN203971308U (en) | 2014-12-03 |
Family
ID=51968778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420341694.0U Expired - Fee Related CN203971308U (en) | 2014-06-25 | 2014-06-25 | Back board structure on a kind of body-building board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203971308U (en) |
-
2014
- 2014-06-25 CN CN201420341694.0U patent/CN203971308U/en not_active Expired - Fee Related
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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: 20141203 Termination date: 20150625 |
|
| EXPY | Termination of patent right or utility model |