CN102294108B - Adjustable built-in damping device - Google Patents
Adjustable built-in damping device Download PDFInfo
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- CN102294108B CN102294108B CN 201110241480 CN201110241480A CN102294108B CN 102294108 B CN102294108 B CN 102294108B CN 201110241480 CN201110241480 CN 201110241480 CN 201110241480 A CN201110241480 A CN 201110241480A CN 102294108 B CN102294108 B CN 102294108B
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Abstract
The invention discloses an adjustable built-in damping device, which comprises a central shaft, wherein the central shaft is a step shaft comprising a first section of shaft, a second section of shaft and a third section of shaft which are arranged from the top to the bottom, a cross recessed countersunk head screw is inserted in the top end of the first section of shaft, the top end of the cross recessed countersunk head screw is arranged outside the first section of shaft, a gasket is arranged between the cross recessed countersunk head screw and the first section of shaft, a bearing inner sleeve is sheathed outside the upper part of the first section of shaft, a deep groove ball bearing is sheathed outside the bearing inner sleeve, a nylon column is sheathed outside the lower part of the first section of shaft, a large gasket sheathed on the first section of shaft is sheathed under the nylon column, a thrust ball bearing is sheathed outside the second section of shaft, a bearing sleeve is commonly sheathed outside the deep groove ball bearing, the nylon column and the thrust ball bearing, and a lower fixed sleeve is sheathed outside the third section of shaft. The adjustable built-in damping device disclosed by the invention has the advantages that the structure is simple, the functions are more, and the occupied area is small.
Description
Technical field
The present invention relates to the adjustable built-in damping device fitness equipment in a kind of body-building apparatus.
Background technology
At present, many rotatable devices are arranged in outdoor fitness equipment, be equipped with rotatable parts in these devices, as device for twisting waist, be equipped with axle in the rotary part in this fitness equipment, the frictional force between axle and bearing holder (housing, cover) is very little, body-building effect is not good, and people can sprain waist because power is excessive in use, and safety coefficient is not high.
Summary of the invention
The objective of the invention is in order to overcome above deficiency, a kind of simple in structure, adjustable resistance is big or small, security performance is good adjustable built-in damping device is provided.
purpose of the present invention is achieved through the following technical solutions: a kind of adjustable built-in damping device, comprise central shaft, central shaft is by the first paragraph axle, second segment axle and the 3rd section multidiameter that axle forms, the first paragraph axle, second segment axle and the 3rd section axle set gradually from top to bottom, the diameter of first paragraph axle is less than the diameter of second segment axle, the diameter of second segment axle is less than the diameter of the 3rd section axle, be inserted with cross recessed countersunk head sscrew in the top of first paragraph axle, the top of cross recessed countersunk head sscrew is placed in the outside of first paragraph axle, be provided with pad between the top of cross recessed countersunk head sscrew and first paragraph axle, first paragraph axle top outer race has bearing inner sleeve, the bearing inner sleeve outer race has deep groove ball bearing, first paragraph axle bottom outer race has nylon column, the below of nylon column is provided with the large pad that is enclosed within on the first paragraph axle, one end of large pad is placed on the step that forms between first paragraph axle and second segment axle, the outer race of second segment axle has thrust ball bearing, thrust ball bearing is placed on the step that forms between second segment axle and the 3rd section axle, deep groove ball bearing, the peripheral common cover of nylon column and thrust ball bearing has a bearing holder (housing, cover), the outer race of the 3rd section axle has lower fixed cover.
The present invention compared with prior art has the following advantages:
The present invention increases frictional force between axle and bearing holder (housing, cover) by the degree of tightness of regulating cross recessed countersunk head sscrew, reaches damping, have advantages of simple in structure, easy to assembly, noise is little, cost is low.
Description of drawings:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of one embodiment of the present invention;
Number in the figure: fixed cover, 13-screw, 14-foot pedal under 1-first paragraph axle, 2-second segment axle, the 3rd section axle of 3-, 4-cross recessed countersunk head sscrew, 5-pad, 6-bearing inner sleeve, 7-deep groove ball bearing, 8-nylon column, the large pad of 9-, 10-thrust ball bearing, 11-bearing holder (housing, cover), 12-.
The specific embodiment:
In order to deepen the understanding of the present invention, the invention will be further described below in conjunction with embodiment and accompanying drawing, and this embodiment only is used for explaining the present invention, does not consist of the restriction to protection domain of the present invention.
show a kind of embodiment of a kind of adjustable built-in damping device of the present invention as Fig. 1, comprise central shaft, central shaft is by first paragraph axle 1, second segment axle 2 and the 3rd section multidiameter that axle 3 forms, first paragraph axle 1, second segment axle 2 and the 3rd section axle 3 set gradually from top to bottom, the diameter of first paragraph axle 1 is less than the diameter of second segment axle 2, the diameter of second segment axle 2 is less than the diameter of the 3rd section axle 3, be inserted with cross recessed countersunk head sscrew 4 in the top of first paragraph axle 1, the top of cross recessed countersunk head sscrew 4 is placed in the outside of first paragraph axle 1, be provided with pad 5 between the top of cross recessed countersunk head sscrew 4 and first paragraph axle 1, first paragraph axle 1 top outer race has bearing inner sleeve 6, bearing inner sleeve 6 outer race have deep groove ball bearing 7, first paragraph axle 1 bottom outer race has nylon column 8, the below of nylon column 8 is provided with the large pad 9 that is enclosed within on first paragraph axle 1, one end of large pad 9 is placed on the step that forms between first paragraph axle 1 and second segment axle 2, the outer race of second segment axle 2 has thrust ball bearing 10, thrust ball bearing 10 is placed on the step that forms between second segment axle 2 and the 3rd section axle 3, deep groove ball bearing 7, the peripheral common cover of nylon column 8 and thrust ball bearing 10 has a bearing holder (housing, cover) 11, the outer race of the 3rd section axle 3 has lower fixed cover 12.
As shown in Figure 2, adjustable built-in damping device fixes by screw 13 and foot pedal 14, when tightening up cross recessed countersunk head sscrew, can outwards expand after nylon column is squeezed, utilize nylon column to be subjected to active force to produce the principle of strain, increase the frictional force between axle and nylon column and bearing holder (housing, cover), produce damping, the user stands in when rotatablely moving on foot pedal, just can be not fast because of the speed of rotation, and waist is damaged.When as excessive in resistance, can transfer loose cross recessed countersunk head sscrew, reduce the frictional force between axle and nylon column and bearing holder (housing, cover), the drag size of fitness equipment can be regulated at any time according to the different users.
The present invention increases frictional force between axle and bearing holder (housing, cover) by the degree of tightness of regulating cross recessed countersunk head sscrew, reach damping, when the apparatus High Rotation Speed, slow-down, increase security performance, that the present invention has advantages of is simple in structure, easy to assembly, noise is little, cost is low.
Claims (1)
1. adjustable built-in damping device, comprise central shaft, it is characterized in that: described central shaft is by first paragraph axle (1), the multidiameter that second segment axle (2) and the 3rd section axle (3) form, described first paragraph axle (1), described second segment axle (2) and described the 3rd section axle (3) set gradually from top to bottom, the diameter of described first paragraph axle (1) is less than the diameter of described second segment axle (2), the diameter of described second segment axle (2) is less than the diameter of described the 3rd section axle (3), be inserted with cross recessed countersunk head sscrew (4) in the top of described first paragraph axle (1), the top of described cross recessed countersunk head sscrew (4) is placed in the outside of described first paragraph axle (1), be provided with pad (5) between the top of described cross recessed countersunk head sscrew (4) and described first paragraph axle (1), described first paragraph axle (1) top outer race has bearing inner sleeve (6), described bearing inner sleeve (6) outer race has deep groove ball bearing (7), described first paragraph axle (1) bottom outer race has nylon column (8), the below of described nylon column (8) is provided with the large pad (9) that is enclosed within on described first paragraph axle (1), one end of described large pad (9) is placed on the step that forms between described first paragraph axle (1) and described second segment axle (2), the outer race of described second segment axle (2) has thrust ball bearing (10), described thrust ball bearing (10) is placed on the step that forms between described second segment axle (2) and described the 3rd section axle (3), described deep groove ball bearing (7), the peripheral common cover of described nylon column (8) and described thrust ball bearing (10) has a bearing holder (housing, cover) (11), the outer race of described the 3rd section axle (3) has lower fixed cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110241480 CN102294108B (en) | 2011-08-22 | 2011-08-22 | Adjustable built-in damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110241480 CN102294108B (en) | 2011-08-22 | 2011-08-22 | Adjustable built-in damping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102294108A CN102294108A (en) | 2011-12-28 |
| CN102294108B true CN102294108B (en) | 2013-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110241480 Active CN102294108B (en) | 2011-08-22 | 2011-08-22 | Adjustable built-in damping device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102294108B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721375B (en) * | 2013-12-12 | 2015-11-18 | 南通铁人运动用品有限公司 | Unsettled runner damping unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2576286Y (en) * | 2002-11-12 | 2003-10-01 | 张志明 | Integrated twisting-waist device |
| CN2684874Y (en) * | 2004-02-19 | 2005-03-16 | 张煌东 | Magnetic control damper |
| CN2751844Y (en) * | 2004-12-01 | 2006-01-18 | 马启修 | Magnetic control damping device for exercising implements |
| CN202191644U (en) * | 2011-08-22 | 2012-04-18 | 南通铁人运动用品有限公司 | Adjustable built-in damping device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030216233A1 (en) * | 2002-05-15 | 2003-11-20 | Ting-Hsing Chen | Twister structure |
-
2011
- 2011-08-22 CN CN 201110241480 patent/CN102294108B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2576286Y (en) * | 2002-11-12 | 2003-10-01 | 张志明 | Integrated twisting-waist device |
| CN2684874Y (en) * | 2004-02-19 | 2005-03-16 | 张煌东 | Magnetic control damper |
| CN2751844Y (en) * | 2004-12-01 | 2006-01-18 | 马启修 | Magnetic control damping device for exercising implements |
| CN202191644U (en) * | 2011-08-22 | 2012-04-18 | 南通铁人运动用品有限公司 | Adjustable built-in damping device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102294108A (en) | 2011-12-28 |
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