CN102591112B - Locking mechanism and projector using same - Google Patents
Locking mechanism and projector using same Download PDFInfo
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- CN102591112B CN102591112B CN201210033623.XA CN201210033623A CN102591112B CN 102591112 B CN102591112 B CN 102591112B CN 201210033623 A CN201210033623 A CN 201210033623A CN 102591112 B CN102591112 B CN 102591112B
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- spring
- cover plate
- screw
- latch mechanism
- collar flange
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Abstract
The invention provides a locking mechanism and a projector using the same. The locking mechanism comprises a fixed body, a screw and a spring, wherein the fixed body is provided with a cover plate, a convex post arranged on the cover plate, a through hole penetrating the convex post and the cover plate in the extending direction of the convex post, and an annular flange formed on the inner wall of the through hole; the rod part of the screw movably penetrates the annular flange in the through hole, a threaded part at one end of the rod part is positioned on one side of the annular flange back to the cover plate, and a cap part at the other end of the rod part is positioned on the other side of the annular flange facing the cover plate; the spring is sleeved on the rod part between the annular flange and the cap part; when an external force drives the screw to move back to the cover plate, the threaded part extends out of the through hole, and a moving body is locked by threaded connection between the threaded part and a threaded hole of the moving body; and when the external force disappears and the screw is driven to move towards the cover plate by the elasticity of the spring, the screw is clamped by interference fit between the annular flange and the threaded part. The locking mechanism can lock the moving body and prevents the screw from dropping.
Description
Technical field
The projector that the present invention relates to latch mechanism and apply this latch mechanism, particularly utilizes screw realize locking and can when removing locking, avoid a kind of latch mechanism of toner screw and the projector that applies this latch mechanism.
Background technology
In prior art, common a kind of projector has slip lamp door closure, and in order to realize the locking to slip lamp door closure, this projector also has fixedly side cover, screw and spring.Wherein, spring housing is located at the bar portion of screw, and the screw that is arranged with spring refills is located at fixedly side cover.
When needs locking slip lamp door closure, the threaded portion of screw is screwed in to the threaded hole of the lamp door closure that slides, thereby utilize screw to realize the locking to slip lamp door closure with being threaded of threaded hole, now, spring is in compressive state.
For example, when needs are removed locking (needing to change lamp door closure), the threaded portion of screw is screwed out from the threaded hole of slip lamp door closure, and the threaded portion that the elastic force that the spring in compressive state produces can additional screws screws out from the threaded hole of slip lamp door closure.
Visible, in above-mentioned projector, by the latch mechanism that fixedly side cover, screw and spring form, can realize flexibly the releasing to the locking of slip lamp door closure and locking.
But but there is following defect in this latch mechanism in above-mentioned projector:
1, the threaded portion of screw is from the threaded hole back-out of slip lamp door closure, the elastic force that spring in compressive state produces easily makes screw come off and spring is come off from fixing side cover with screw from fixing side cover, thereby just easily cause all needing to reinstall screw and spring after each releasing locking, and then just additionally increased the assembly process in latch mechanism use procedure;
2,, for fear of occurring that when mounted spring is from toner screw, in prior art, conventionally need to process in the bar portion of screw the groove position for clamping spring, thereby just increase the processing cost of screw, and then also just increase the cost of latch mechanism.
Certainly, in above-mentioned projector by the latch mechanism that fixedly side cover, screw and spring form, have be similar to fixing side cover fixed body, be similar in other equipment of moving body of slip lamp door closure and also have same defect for realizing the mechanism of locking.
Summary of the invention
In view of this, the projector that the invention provides a kind of latch mechanism and apply this latch mechanism.
According to a first aspect of the invention, provide a kind of latch mechanism.This latch mechanism comprises:
Fixed body, the collar flange that it has cover plate, is located at the projection of described cover plate, run through the through hole of described projection and described cover plate and be formed at the inwall of described through hole along the bearing of trend of described projection;
Screw, its bar portion is arranged in movably described collar flange in described through hole, the threaded portion of one end of described bar portion is positioned at a described collar flange side of described cover plate dorsad, and the cap portion of the other end of described bar portion is positioned at described collar flange towards the opposite side of described cover plate;
Spring, it is sheathed on described bar portion between described collar flange and described cap portion;
Wherein, when having external force to order about described screw when described cover plate moves dorsad, described threaded portion extend out to outside described through hole and is threaded to realize the locking to described moving body for the threaded hole by with a moving body; When described external force disappears and orders about described screw when described cover plate moves by the elastic force of described spring, the interference fit of described collar flange utilization and described threaded portion is stuck by described screw.
According to described latch mechanism, one end of the close described collar flange of described spring and described bar portion clearance fit, and when described one end of described spring moves to described threaded portion along described bar portion, described threaded portion utilizes with the interference fit of described one end of described spring and stops described spring; The other end of the close described cap portion of described spring and described bar portion clearance fit, and the internal diameter of the described other end of described spring is less than the external diameter of described cap portion.
According to described latch mechanism, the internal diameter of described one end of described spring is less than the internal diameter of the other end of the close described cap portion of described spring.
According to described latch mechanism, described spring is taper.
According to described latch mechanism, described bar portion comprises near the path section of described threaded portion and near the large footpath section of described cap portion, described path section be arranged in described collar flange and with described collar flange clearance fit, described large footpath section is positioned at described collar flange and is greater than described path section towards described opposite side and the external diameter of described cover plate.
According to described latch mechanism, the described large footpath section clearance fit of the other end of the close described cap portion of one end of the close described collar flange of described spring and the described path section clearance fit of described bar portion, described spring and described bar portion.
According to described latch mechanism, the internal diameter of described one end of described spring is less than the internal diameter of the other end of the close described cap portion of described spring.
According to described latch mechanism, described spring is taper.
According to described latch mechanism, described through hole comprises the macropore section that runs through the aperture section of described projection and run through described cover plate, and the internal diameter of described aperture section is less than the external diameter of described cap portion, and the internal diameter of described macropore section is greater than the external diameter of described cap portion; Described collar flange is formed at the inwall of described aperture section.
According to described latch mechanism, described aperture section comprises two parts, and a part is positioned at a described side of the described cover plate dorsad of described collar flange, and another part is positioned at the described opposite side towards described cover plate of described collar flange; Wherein, the length of a described part for described aperture section is more than or equal to the length of described threaded portion.
According to described latch mechanism, the length of described bar portion is greater than the length of described projection.
According to a second aspect of the invention, provide a kind of projector.This projector comprises: latch mechanism as above and the moving body that can be locked by described latch mechanism; Wherein, the fixedly side cover that described fixed body is described projector, the slip lamp door closure that described moving body is described projector.
As above visible, latch mechanism provided by the invention not only can utilize screw to realize the locking to moving body, and, when removing locking, because the collar flange in the through hole of fixed body can utilize with the interference fit of the threaded portion of screw and screw is stuck, thereby can avoid screw and spring to come off from fixed body, thus can avoid reinstalling screw and spring after removing locking, and then can avoid occurring the extra assembly process increasing in latch mechanism use procedure.Correspondingly, in the projector of this latch mechanism of application provided by the invention, can avoid the spring of appearance when removing locking to occur from the problem that fixedly side cover comes off with screw.
Preferably, latch mechanism provided by the invention can also stop spring to come off with the interference fit of one end of spring by the threaded portion utilization of screw, thereby process for the groove position of clamping spring and can avoid spring from toner screw without the bar portion at screw, thereby just reduced the processing cost of screw, and then also just reduced the cost of latch mechanism.Further, the internal diameter of the other end that spring can also be set is relatively large, for example, spring is set and is taper, is convenient to like this installation of spring.Correspondingly, the cost of the projector of this latch mechanism of application provided by the invention also just decreases, also can utilize better correcting effect to improve operability.
Preferably, latch mechanism provided by the invention can be shaped to the bar portion of screw one path section and a large footpath section, and utilize the clearance fit of path section and collar flange and make the angle of screw have adjustable surplus, thereby can compensate the position deviation that through hole and threaded hole exist, and then due to the position deviation of through hole and threaded hole, cause fixed body and moving body to produce skew with regard to avoiding.Further, the internal diameter internal diameter relatively little, the other end of one end that spring can also be set is relatively large, spring is for example set and is taper, can make like this spring to screw produce correcting effect, to avoid occurring when through hole and the non-existent position deviation of threaded hole the situation of screw angular deflection.Correspondingly, the projector of this latch mechanism of application provided by the invention can utilize above-mentioned effect to meet outward appearance demand.
Preferably, latch mechanism provided by the invention can be an aperture section and a macropore section by forming through holes, macropore section wherein can when screw is realized locking, accommodate screw cap portion, with the cap portion that avoids screw, when realizing locking, owing to protruding outside cover plate, collided, be positioned at collar flange dorsad the length of a part of aperture section of a side of cover plate be enough to removing the threaded portion of accommodating screw after locking, to guarantee that the threaded portion of screw can dodge the movement of moving body completely when removing locking.Correspondingly, the projector of this latch mechanism of application provided by the invention just can utilize above-mentioned effect to meet outward appearance demand and improve operability.
Accompanying drawing explanation
Structural representation when Fig. 1 a and Fig. 1 b are respectively latch mechanism in the specific embodiment of the invention in locking and remove locking;
Fig. 2 is the structural representation of the spring of the latch mechanism in the specific embodiment of the invention;
Fig. 3 is the structural representation of the screw of the latch mechanism in the specific embodiment of the invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
Structural representation when Fig. 1 a and Fig. 1 b are respectively latch mechanism in the specific embodiment of the invention in locking and remove locking.Fig. 2 is the structural representation of the spring of the latch mechanism in the specific embodiment of the invention.Fig. 3 is the structural representation of the screw of the latch mechanism in the specific embodiment of the invention.
Refer to Fig. 1 a and Fig. 1 b, with the latch mechanism 1 in the specific embodiment of the invention, be applied to projector and take slip lamp door closure 40 that moving body that needs are locked is projector as example, this latch mechanism 1 comprises: fixedly side cover 10, screw 20 and spring 30.
Fixedly side cover 10 there is cover plate 11, be located at the projection 12 of cover plate 11, the collar flange 14 that runs through the through hole 13 of projection 12 and cover plate 11 and be formed at the inwall of through hole 13 along the bearing of trend of projection 12;
The bar portion 21 of screw 20 is arranged in movably collar flange 14 in through hole 13, and the threaded portion 22 of bar portion 21 one end is positioned at collar flange 14 side of cover plate 11 dorsad, and the cap portion 23 of bar portion 21 other ends is positioned at collar flange 14 towards the opposite side of cover plate 11;
Spring 30 is sheathed on bar portion 21 between collar flange 14 and cap portion 23;
When having external force to order about screw 20 when cover plate 11 moves dorsad, the threaded portion 22 of screw 20 extend out to outside through hole 13 and for the threaded hole 400 by with slip lamp door closure 40 be threaded to realize the locking to this slip lamp door closure 40, as shown in Figure 1a;
When above-mentioned external force disappears and orders about screw 20 when cover plate 11 moves by the elastic force of spring 30, collar flange 14 utilizes with the interference fit of the threaded portion 22 of screw 20 screw 20 is stuck, as shown in Figure 1 b.
As above visible, the locking that latch mechanism 1 in the specific embodiment of the invention not only can utilize screw 20 to realize slip lamp door closure 40, and, when removing locking, because the collar flange 14 in the through hole 13 of fixing side cover 10 can utilize with the interference fit of the threaded portion 22 of screw 20 and screw 20 is stuck, thereby can avoid screw 20 and spring 30 to come off from fixing side cover 10, thereby can avoid reinstalling screw 20 and spring 30 after latch mechanism 1 is removed locking, and then can avoid the extra assembly process increasing of appearance in latch mechanism 1 use procedure.
And spring 30 is connected between collar flange 14 and the cap portion 23 of screw 20 and applies axial thrust in 23 pairs of screws 20 of cap portion of screw 20.Between the threaded portion 22 that this thrust can make screw 20 in when locking and threaded hole 400, produce axial snap-in force, thereby can make between threaded portion 22 and threaded hole 400 more steadily to consolidate for being threaded of locking.This thrust can also support screw 20 tensionings with the interference fit of collar flange 14 threaded portion 22 by screw 20 when removing locking, thereby can also avoid screw 20 to rock.
In practical application, because fixedly the collar flange 14 of side cover 10 and the threaded portion of screw 20 22 adopt interference fit, therefore, in screw 20 being installed in to the process of fixing side cover 10, the threaded portion of screw 20 22 can be stretched to through hole 13 from collar flange 14 towards a side of cover plate 11, when the threaded portion 22 of screw 20 extend into collar flange 14, can make by the mode screwing in threaded portion 22 by force through the collar flange 14 with its interference fit and arrive collar flange 14 side of cover plate 11 dorsad.
Please in referring to Fig. 1 a and Fig. 1 b in conjunction with Fig. 2, in the latch mechanism 1 in the specific embodiment of the invention, spring 30 comprises near one end 30a of collar flange 14 and near the other end 30b of cap portion 23, wherein:
The internal diameter of one end 30a of the close collar flange 14 of spring 30 can be set to and threaded portion 22 interference fit, like this, when one end 30a of the close collar flange 14 of spring 30 moves to threaded portion 22, threaded portion 22 utilize with the interference fit of one end 30a of spring 30 stop spring 30, to avoid spring 30 to come off from the one end at 22 places, threaded portion of screw 20;
The internal diameter of the other end 30b of the close cap portion 23 of spring 30 is less than the external diameter of cap portion 23, and like this, the other end 30b of the close cap portion 23 of spring 30 can be connected to cap portion 23, to avoid spring 30 to come off from the other end at cap portion 23 places of screw 20;
The other end 30b of the close cap portion 23 of one end 30a of the close collar flange 14 of spring 30 and spring 30 all with bar portion 21 clearance fit of screw 20, to guarantee that spring 30 still can normally stretch when being sheathed on bar portion 21;
The internal diameter of one end 30a of the close collar flange 14 of spring 30 can be less than the internal diameter of other end 30b of the close cap portion 23 of spring 30, and like this, the internal diameter of the other end 30b of the close cap portion 23 of spring 30 is relatively large so that the installation of spring 30.
It should be noted that, in Fig. 1 a and Fig. 1 b and Fig. 2, be only to take spring 30 to be taper as example, but in actual applications, as long as one end 30a of spring 30 and the internal diameter of other end 30b meet above-mentioned condition, spring 30 can be selected arbitrary shape.
Thus, latch mechanism 1 in the specific embodiment of the invention is without processing for the groove position of clamping spring 30 and can avoid spring 30 to come off from screw 20 in the bar portion 21 of screw 20 as prior art, thereby just reduced the processing cost of screw 20, and then also just reduced the cost of latch mechanism 1 and the cost of applying the projector of this latch mechanism 1.
In practical application, one end 30a of close collar flange 14 and bar portion 21 interference fit of screw 20 due to spring 30, therefore, in the process of bar portion 21 that spring 30 is sheathed with to screw 20, also can make by the mode screwing in the bar portion 21 of screw 20 pass by force one end 30a of the close collar flange 14 of spring 30.
Please in referring to Fig. 1 a and Fig. 1 b in conjunction with Fig. 3, in latch mechanism 1 in the specific embodiment of the invention, bar portion 21 comprises near the path section 21a of threaded portion 22 and near the large footpath section 21b of cap portion 23, wherein, the external diameter of path section 21a is less than the external diameter of large footpath section 21b, and:
Path section 21a be arranged in collar flange 14 and with collar flange 14 clearance fit, removable to guarantee to be located in the screw 20 of collar flange 14; And, the path section 21a clearance fit of one end 30a of spring 30 and bar portion 21, to guarantee that spring 30 still can normally stretch when being sheathed on bar portion 21;
Large footpath section 21b is positioned at collar flange 14 towards the aforementioned opposite side of cover plate 11, to improve the intensity of the bar portion 21 of screw 20; And, the large footpath section 21b clearance fit of the other end 30b of spring 30 and bar portion 21, to guarantee that spring 30 still can normally stretch when being sheathed on bar portion 21.
Thus, latch mechanism 1 in the specific embodiment of the invention can utilize the clearance fit of path section 21a and collar flange 14 and make the angle of screw 20 have adjustable surplus, thereby when between through hole 13 and threaded hole 400 during the deviation of location, can utilize the adjustable threaded portion 22 aligning threaded holes 400 that through hole 13 is stretched out of angle of screw 20, and then by the position deviation existing between through hole 13 and threaded hole 400 is afforded redress, can avoid position deviation due to through hole 13 and threaded hole 400 to cause fixedly between side cover 10 and slip lamp door closure 40, producing skew, to meet the outward appearance demand of projector.
And, when if the latch mechanism in the specific embodiment of the invention 1 adopts bar portion 21 to be divided into path section 21a and large footpath section 21b, while adopting again the internal diameter of previously described spring 30 one end 30a to be less than the internal diameter of other end 30b, can make 30 pairs of screws of spring 20 produce correcting effect, thereby when between through hole 13 and threaded hole 400 not during the deviation of location, can utilize the correcting effect of 30 pairs of screws 20 of spring to make the threaded portion 22 that through hole 13 stretches out aim at threaded hole 400, and then when through hole 13 and threaded hole 400 non-existent position deviation, can avoid the improper situation that causes screw 20 angular deflections of angle due to screw 20, to meet the outward appearance demand of projector.
Please again referring to Fig. 1 a and Fig. 1 b, in latch mechanism 1 in the specific embodiment of the invention, through hole 13 comprises the macropore section 13b that runs through projection 12 and be formed with the aperture section 13a of collar flange 14 and run through cover plate 11 at inwall, wherein, the internal diameter of aperture section 13a is less than the internal diameter of macropore section 13b, and:
The internal diameter of aperture section 13a is less than the external diameter of cap portion 23, in order to stop screw 20 all to enter, also pass through hole 13;
The internal diameter of macropore section 13b is greater than the external diameter of cap portion 23, in order to when screw 20 is realized locking, accommodate screw 20 cap portion 23, with the cap portion 23 that avoids screw 20, when realizing locking, owing to protruding outside cover plate 11, collided;
And, aperture section 13a comprises two parts, a part is wherein positioned at collar flange 14 side of cover plate 11 dorsad, another part is positioned at collar flange 14 towards the opposite side of cover plate 11, and this part of length is more than or equal to the length of threaded portion 22, in order to removing the threaded portion 22 of accommodating screw 20 after locking, to guarantee that the threaded portion 22 of screw 20 can dodge the movement of slip lamp door closure 40 completely when removing locking.
Thus, the latch mechanism in the specific embodiment of the invention 1 can when realizing locking, meet projector outward appearance demand and security, when removing locking, improve the operability of projector.
In addition, in latch mechanism 1 in the specific embodiment of the invention, when adopting through hole 13 to comprise the scheme of aperture section 13a and macropore section 13b, the length of bar portion 21 can be greater than the length of projection 12, be greater than the length of aperture section 13a, to guarantee can to make threaded portion 22 all extend out to outside through hole 13 when locking, thereby can realize firm locking.
In the specific embodiment of the invention except above-mentioned latch mechanism 1 is provided, the projector that applies this latch mechanism 1 is also provided, and this projector comprises that latch mechanism 1 as above and conduct can be by the slip lamp door closures 40 of the moving body of this latch mechanism 1 locking.
Certainly, above-mentioned latch mechanism 1 is except being applied to projector, can also be applied to have be similar to fixing side cover 10 fixed body, be similar in other equipment of moving body of slip lamp door closure 40, that is, as the fixedly side cover 10 of fixed body, the parts that can replace with in other similar devices as the slip lamp door closure 40 of moving body.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (11)
1. a latch mechanism, is characterized in that, comprising:
Fixed body, the collar flange that it has cover plate, is located at the projection of described cover plate, run through the through hole of described projection and described cover plate and be formed at the inwall of described through hole along the bearing of trend of described projection;
Screw, its bar portion is arranged in movably described collar flange in described through hole, the threaded portion of one end of described bar portion is positioned at a described collar flange side of described cover plate dorsad, and the cap portion of the other end of described bar portion is positioned at described collar flange towards the opposite side of described cover plate;
Spring, it is sheathed on described bar portion between described collar flange and described cap portion;
Wherein, when having external force to order about described screw when described cover plate moves dorsad, described threaded portion extend out to outside described through hole and is threaded to realize the locking to described moving body for the threaded hole by with a moving body; When described external force disappears and orders about described screw when described cover plate moves by the elastic force of described spring, the interference fit of described collar flange utilization and described threaded portion is stuck by described screw;
Described bar portion comprises near the path section of described threaded portion and near the large footpath section of described cap portion, described path section be arranged in described collar flange and with described collar flange clearance fit, described large footpath section is positioned at described collar flange and is greater than described path section towards described opposite side and the external diameter of described cover plate.
2. latch mechanism according to claim 1, it is characterized in that, the described path section clearance fit of one end of the close described collar flange of described spring and described bar portion, and when described one end of described spring moves to described threaded portion along described bar portion, described threaded portion utilizes with the interference fit of described one end of described spring and stops described spring; The described large footpath section clearance fit of the other end of the close described cap portion of described spring and described bar portion, and the internal diameter of the described other end of described spring is less than the external diameter of described cap portion.
3. latch mechanism according to claim 2, is characterized in that, the internal diameter of described one end of described spring is less than the internal diameter of the other end of the close described cap portion of described spring.
4. latch mechanism according to claim 3, is characterized in that, described spring is taper.
5. latch mechanism according to claim 1, it is characterized in that the described large footpath section clearance fit of the other end of the close described cap portion of one end of the close described collar flange of described spring and the described path section clearance fit of described bar portion, described spring and described bar portion.
6. latch mechanism according to claim 5, is characterized in that, the internal diameter of described one end of described spring is less than the internal diameter of the described other end of described spring.
7. latch mechanism according to claim 6, is characterized in that, described spring is taper.
8. latch mechanism according to claim 1, it is characterized in that, described through hole comprises the macropore section that runs through the aperture section of described projection and run through described cover plate, and the internal diameter of described aperture section is less than the external diameter of described cap portion, and the internal diameter of described macropore section is greater than the external diameter of described cap portion; Described collar flange is formed at the inwall of described aperture section.
9. latch mechanism according to claim 8, it is characterized in that, described aperture section comprises two parts, and a part is positioned at a described side of the described cover plate dorsad of described collar flange, and another part is positioned at the described opposite side towards described cover plate of described collar flange; Wherein, the length of a described part for described aperture section is more than or equal to the length of described threaded portion.
10. latch mechanism according to claim 9, is characterized in that, the length of described bar portion is greater than the length of described projection.
11.Yi Zhong projector, is characterized in that, comprise latch mechanism as described in any one in claim 1 to 10 and can by as described in the latch mechanism moving body of locking; Wherein, the fixedly side cover that described fixed body is described projector, the slip lamp door closure that described moving body is described projector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210033623.XA CN102591112B (en) | 2012-02-15 | 2012-02-15 | Locking mechanism and projector using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210033623.XA CN102591112B (en) | 2012-02-15 | 2012-02-15 | Locking mechanism and projector using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102591112A CN102591112A (en) | 2012-07-18 |
| CN102591112B true CN102591112B (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210033623.XA Active CN102591112B (en) | 2012-02-15 | 2012-02-15 | Locking mechanism and projector using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102591112B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104216468A (en) * | 2013-06-03 | 2014-12-17 | 辉达公司 | Spring screw and display card with same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430485A (en) * | 2007-11-05 | 2009-05-13 | 鸿富锦精密工业（深圳）有限公司 | Locking mechanism for bulb cover of projector |
| CN201871543U (en) * | 2010-09-01 | 2011-06-22 | 新疆八一钢铁股份有限公司 | Cold rolling machine easy assembling and disassembling big inclination angle floating ring seal drum type tooth transmission shaft structure |
| CN201896820U (en) * | 2010-11-15 | 2011-07-13 | 恒昌行精密工业有限公司 | Quick board-to-board positioning screw |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100290861A1 (en) * | 2009-05-13 | 2010-11-18 | Kuo-Chung Wang | Metal plate member fixation device installation method |
-
2012
- 2012-02-15 CN CN201210033623.XA patent/CN102591112B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430485A (en) * | 2007-11-05 | 2009-05-13 | 鸿富锦精密工业（深圳）有限公司 | Locking mechanism for bulb cover of projector |
| CN201871543U (en) * | 2010-09-01 | 2011-06-22 | 新疆八一钢铁股份有限公司 | Cold rolling machine easy assembling and disassembling big inclination angle floating ring seal drum type tooth transmission shaft structure |
| CN201896820U (en) * | 2010-11-15 | 2011-07-13 | 恒昌行精密工业有限公司 | Quick board-to-board positioning screw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102591112A (en) | 2012-07-18 |
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