CN201131610Y - A self-locking device for winding object rolling device - Google Patents
A self-locking device for winding object rolling device Download PDFInfo
- Publication number
- CN201131610Y CN201131610Y CNU2007200445848U CN200720044584U CN201131610Y CN 201131610 Y CN201131610 Y CN 201131610Y CN U2007200445848 U CNU2007200445848 U CN U2007200445848U CN 200720044584 U CN200720044584 U CN 200720044584U CN 201131610 Y CN201131610 Y CN 201131610Y
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- China
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- cannelure
- steel ball
- groove
- detent
- backrush
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- Expired - Lifetime
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Abstract
The utility model discloses a self locking device which is used in the wound article winding device and has higher reliability and longer service life. The self locking device comprises a cam shaft, a rollback circular groove, a limiting concave groove, a positioning concave groove and a spreading circular groove are arranged on the cam shaft in sequence, a return groove is interpenetrated between the rollback circular groove and the spreading circular groove, the openings of the limiting concave groove and the positioning concave groove are oppositely arranged, a cam shaft casing is also movably sleeved at the outer side of the cam shaft, a locking concave groove is arranged on the inner wall of the cam shaft casing, a steel ball is arranged in the locking concave groove, and the locking concave groove can drive the steel ball to roll in the rollback circular groove, the limiting concave groove, the positioning concave groove, the spreading circular groove and the return groove. The operation of the wound article winding device adopting the self locking device is very simple.
Description
Technical field
The utility model relates to the coiler of the coiling things such as screen, curtain that are used to reel, and refers more particularly to the self-locking device that is used for this kind coiler.
Background technology
At present, the coiler of wound items such as screen, curtain is used for reeling, its structure mainly comprises: plug, one end of plug is provided with shell, the other end of plug is provided with supporting base, and shell and supporting base all can rotate around plug, also is provided with returning spring on the plug, one end and the shell of returning spring fix, and the other end and the plug of returning spring fix; In coiler, also be provided with self-locking device, its structure is: the inwall of shell offers " U " shape groove, be placed with steel ball in " U " shape groove, the degree of depth of " U " shape groove is greater than the diameter of steel ball, notch at " U " shape groove also is provided with recess outside the arc on one side, on plug with arc outside the corresponding position of recess be provided with inner recess, the spacing between outer recess of arc and the inner recess is less than the diameter of steel ball.During real work, earlier objects such as screen, curtain are wound on the pipe, this pipe are enclosed within the outside of supporting base and shell and it and supporting base and shell are fixed, and make the placement that makes progress of inner recess on the plug; During use, to be wound on wound items on the pipe by a certain direction---open as counterclockwise pulling out, this wound items by pipe drive shell, supporting base rotates together, shell drives returning spring again and reverses together, returning spring is store kinetic energy when reversing, and in this course, steel ball enters into " U " shape groove, because the degree of depth of " U " shape groove is greater than the diameter of steel ball, so shell can freely rotate around plug in the counterclockwise direction; After this wound items pulled into Len req, stop drag, this moment, the torsion of returning spring will impel the shell backward rotation, and can carry out different operations this moment according to different needs: the one, and self-locking device is had an effect, wound items is locked on the desired position; The 2nd, self-locking device can not be had an effect, make the quick backrush of wound items, draw on the pipe.The shortcoming of above-mentioned coiler is: described self-locking device reliability is not high, and service life is also shorter relatively, has influenced user's normal use.
The utility model content
Technical problem to be solved in the utility model is: will provide that a kind of reliability is higher, the self-locking device that is used for winding matter coiler of longer service life.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the described self-locking device that is used for winding matter coiler, comprise: camshaft, on camshaft, be disposed with the backrush cannelure, limited impression, detent and expansion cannelure, reseting groove runs through the backrush cannelure and launches between the cannelure, the opening of limited impression and detent is established in opposite directions, also be movably installed with the cam shell in the camshaft outside, the inwall of cam shell is provided with lactch groove, be provided with steel ball in the lactch groove, lactch groove can drive steel ball at the backrush cannelure, limited impression, detent, launch to roll in cannelure and the reseting groove.
Above-mentioned backrush cannelure, limited impression, detent, expansion cannelure and reseting groove concrete set-up mode each other is: when steel ball is launching in the cannelure when the opening direction of detent rolls, then steel ball can only launch to slide in the cannelure always; When steel ball is launching in the cannelure opening direction against detent when rolling, then steel ball will enter in the detent; When steel ball then will inevitably enter into limited impression after the opening part of detent skids off; When steel ball then will inevitably enter the backrush cannelure after the opening part of limited impression skids off, and steel ball can continue to roll in the backrush cannelure along the opening direction of limited impression always; When steel ball rolled against the opening direction of limited impression in the backrush cannelure, then steel ball will inevitably enter into by reseting groove and launch cannelure.
The utility model further technical scheme is: the end at camshaft also is provided with location lug.
The utility model has the advantages that: use the self-locking device of said structure in winding matter coiler, its self-locking reliability is higher, and service life is also longer, operates also very easy.
Description of drawings
Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of self-locking device described in the utility model;
Fig. 2 is the front view of the camshaft shown in Fig. 1;
Fig. 3 is the upward view of Fig. 2;
Fig. 4 is the vertical view of Fig. 2;
Fig. 5 is the rearview of Fig. 2.
The specific embodiment
Below in conjunction with above-mentioned the drawings and specific embodiments technical scheme described in the utility model is further described.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the self-locking device that is used for winding matter coiler described in the present embodiment, comprise: camshaft 1, on camshaft 1, be disposed with backrush cannelure 14, limited impression 13, detent 12 and expansion cannelure 11, reseting groove 15 runs through backrush cannelure 14 and launches between the cannelure 11, the opening of limited impression 13 and detent 12 is established in opposite directions, the outside at camshaft 1 also is movably installed with cam shell 3, the inwall of cam shell 3 is provided with lactch groove 31, be provided with steel ball 2 in the lactch groove 31, lactch groove 31 can drive steel ball 2 at backrush cannelure 14, limited impression 13, detent 12, launch to roll in cannelure 11 and the reseting groove 15.Above-mentioned backrush cannelure 14, limited impression 13, detent 12, launch cannelure 11 and reseting groove 15 concrete set-up mode each other is: when steel ball 2 is launching in the cannelure 11 when the opening direction of detent 12 rolls, then steel ball 2 can only launch rolling in the cannelure 11 always; When steel ball 2 is launching in the cannelure 11 opening direction against detent 12 when rolling, then steel ball 2 will enter in the detent 12; When steel ball 2 then will inevitably enter into limited impression 13 after the opening part of detent 12 skids off; When steel ball 2 then will inevitably enter the backrush cannelure 14 after the opening part of limited impression 13 skids off, and steel ball 2 can continue to roll in backrush cannelure 14 along the opening direction of limited impression 13 always; When steel ball 2 rolled against the opening direction of limited impression 13 in backrush cannelure 14, then steel ball 2 will inevitably enter reseting groove 15 and enter into by reseting groove 15 and launch cannelure 11.In actual fabrication, also can location side's tenon 17 be set, with the convenient camshaft 1 of installing at an end of camshaft 1.
The using method of the self-locking device of said structure is: it is arranged on an end of coiler, during use, the side's of location tenon 17 is fixed in the mount pad, and mount pad is fixed on the wall usually, and an end that is wound with the pipe of coiling things such as screen, curtain then is fixedly set in the outside of cam shell 3.When wound items being pulled out when opening to a certain direction, the coiling thing drives cam shell 3 by pipe and rotates together, in this course, cam shell 3 drives steel balls 2 by lactch groove 31 and is launching in the cannelure 11 opening direction rolling along detent 12 always, after the coiling thing pulled into Len req, stop drag, reel this moment and begin backrush under the effect of the returning spring of thing in coiler, draw in, the coiling thing drives cam shell 3 backward rotation together by pipe, cam shell 3 drives steel ball 2 opening direction against detent 12 in launching cannelure 11 by lactch groove 31 and rolls, thereby steel ball 2 will inevitably enter into detent 12, like this, steel ball 2 groove 12 kaysers that just are positioned have been lived, that is: the returning spring in the coiler can not continue driving cam shell 3 and coiling thing backrush gathering, thereby realizes the purpose with coiling thing location; When needs draw in the coiling thing on the pipe fully, need gently the coiling thing to be pulled out again to open, making cam shell 3 drive steel ball 2 by lactch groove 31 skids off from detent 12, and will inevitably enter into limited impression 13, and then decontrol, make under the effect of the returning spring of coiling thing in coiler and continue backrush, draw in, in this course, cam shell 3 drives steel balls 2 by lactch groove 31 will inevitably enter into backrush cannelure 14 after the opening part of limited impression 13 skids off, and in backrush cannelure 14, roll along the opening direction of limited impression 13, draw on the pipe fully until the coiling thing. alwaysWhen need are pulled out the coiling thing when opening once more, the coiling thing can drive cam shell 3 by pipe and rotate, making cam shell 3 drive steel ball 2 opening direction against limited impression 13 in backrush cannelure 14 by lactch groove 31 rolls, then steel ball 2 will inevitably enter reseting groove 15 and enter into expansion cannelure 11 by reseting groove 15, steel ball 2 opening direction along detent 12 in launching cannelure 11 is rolled, be opened to the desired position to guarantee that the coiling thing is pulled out.
In sum, use self-locking device described in the utility model in winding matter coiler, not only self-locking reliability is higher, and service life is also longer, operates also very easy.
Claims (3)
1, the self-locking device that is used for winding matter coiler, comprise: camshaft, it is characterized in that: on camshaft, be disposed with the backrush cannelure, limited impression, detent and expansion cannelure, reseting groove runs through the backrush cannelure and launches between the cannelure, the opening of limited impression and detent is established in opposite directions, also be movably installed with the cam shell in the camshaft outside, the inwall of cam shell is provided with lactch groove, be provided with steel ball in the lactch groove, lactch groove can drive steel ball at the backrush cannelure, limited impression, detent, launch to roll in cannelure and the reseting groove.
2, self-locking device as claimed in claim 1, it is characterized in that: described backrush cannelure, limited impression, detent, expansion cannelure and reseting groove concrete set-up mode each other is: when steel ball is launching in the cannelure when the opening direction of detent rolls, then steel ball can only launch to slide in the cannelure always; When steel ball is launching in the cannelure opening direction against detent when rolling, then steel ball will enter in the detent; When steel ball then will inevitably enter into limited impression after the opening part of detent skids off; When steel ball then will inevitably enter the backrush cannelure after the opening part of limited impression skids off, and steel ball can continue to roll in the backrush cannelure along the opening direction of limited impression always; When steel ball rolled against the opening direction of limited impression in the backrush cannelure, then steel ball will inevitably enter into by reseting groove and launch cannelure.
3, self-locking device as claimed in claim 1 or 2 is characterized in that: the end at camshaft also is provided with location lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200445848U CN201131610Y (en) | 2007-10-18 | 2007-10-18 | A self-locking device for winding object rolling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200445848U CN201131610Y (en) | 2007-10-18 | 2007-10-18 | A self-locking device for winding object rolling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201131610Y true CN201131610Y (en) | 2008-10-15 |
Family
ID=40059886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200445848U Expired - Lifetime CN201131610Y (en) | 2007-10-18 | 2007-10-18 | A self-locking device for winding object rolling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201131610Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157423B (en) * | 2007-10-18 | 2011-11-09 | 江苏红叶视听器材股份有限公司 | Self-locking device for winding matter coiler |
-
2007
- 2007-10-18 CN CNU2007200445848U patent/CN201131610Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157423B (en) * | 2007-10-18 | 2011-11-09 | 江苏红叶视听器材股份有限公司 | Self-locking device for winding matter coiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU HONGYE AUDIOVISUALS CO., LTD. Free format text: FORMER NAME: ZHANGJIAGANG CITY HONGYE AUDIO-VISUAL AID CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Fengzhen Jin Lian Xing Cun, Zhangjiagang City, Jiangsu province zip code: 215625 Patentee after: Jiangsu Redleaf Audio & Visual Equipment Co., Ltd. Address before: Zhangjiagang, Jiangsu Province, Fengzhen Jin Xing District, Yang Jin Road next to the (gas station north), zip code: 215625 Patentee before: Zhangjiagang Redleaf Audio & Visual Corp. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20081015 Effective date of abandoning: 20071018 |