CN201569845U - Finger-protective dust cover device - Google Patents
Finger-protective dust cover device Download PDFInfo
- Publication number
- CN201569845U CN201569845U CN2009201584211U CN200920158421U CN201569845U CN 201569845 U CN201569845 U CN 201569845U CN 2009201584211 U CN2009201584211 U CN 2009201584211U CN 200920158421 U CN200920158421 U CN 200920158421U CN 201569845 U CN201569845 U CN 201569845U
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- CN
- China
- Prior art keywords
- guide rod
- dust
- cover device
- proof cover
- plate
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- 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 relates to a finger-protective dust cover device, which is applied to electronic equipment for starting or closing a hole on the front cover of the electronic equipment. The dust cover device comprises a positioning plate, a drive device and a dust cover, wherein a first guide rod is fixed on the positioning plate; the drive device is fixed on the positioning plate and comprises a motor and gears driven by the motor, the dust cover is located between the front cover and the positioning plate and is sleeved on the first guide rod in a sliding manner, and racks which are matched with the gears and capable of opening or closing the dust cover are arranged on the dust cover; and the first guide rod comprises a first state which enables the dust cover to slide on the first guide rod through the mesh of the racks and the gears, and a second state of the mutual contact of the racks and the gears and the elastic deformation of the first guide rod caused by foreign bodies in the close course of the dust cover. The dust cover device can prevent people from injuries in false operation.
Description
Technical field
The utility model relates to a kind of dust-proof cover device of anti-tong.
Background technology
Existing a lot of image capture equipment, image projector equipment all are equipped with dust cap, are used for len.In use, dust cap is opened, and light can be passed through; Under the non-working condition, dust cap cuts out, and prevents that dust etc. from falling on the camera lens.
With the projector is example, and present dust-proof cover device mostly is external.Fig. 1 shows the structural representation of a kind of projector dust-proof cover device in the prior art.As shown in Figure 1, this dust-proof cover device 20 comprises base 21 and is connected trip module 22 and buffer substrate tablet 23 on the surface 211 of base 21.Trip module 22 comprises that each trip lamellar body 221 both sides is depressed part 222 around the symmetrically arranged a plurality of trip lamellar bodies 221 of the central shaft of dust cap 20, and is provided with reinforcement wall 223 between two adjacent trip lamellar bodies 221.
The end of trip lamellar body 221 has hook part 2211.When the focusing ring (not shown) of dust cap 20 and corresponding camera lens in conjunction with the time, trip lamellar body 221 can be out of shape because of the extruding of focusing ring, and hook part 221 is packed into.Behind the location, trip lamellar body 221 recovers elasticity, and closely is snapped in the focusing ring of camera lens.
The defective of this external dust-proof cover device 20 is, owing to need frequently take off or cover, causes dust cap 20 to lose easily or causes damage because of external force.
Though there is partial image acquisition equipment configuration that built-in dust-proof cover device is arranged at present, and closed under motor driven, open, but in its closed process, snap in if there is foreign matter for example to point, therefore dust-proof cover device can't stop closed action, finger to maloperation person causes damage easily, makes this device ' have hidden danger.
The utility model content
The technical problems to be solved in the utility model is, easily the finger that snaps in caused the defective of damage at dust-proof cover device of the prior art, provides a kind of dust-proof cover device of anti-tong, to improve security.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of dust-proof cover device of anti-tong, be applied to an electronic equipment with the hole on the protecgulum of opening or closing described electronic equipment, and described dust-proof cover device comprises:
Location-plate is fixed with first guide rod on it;
Drive unit is fixed on the described location-plate, comprises motor and by the gear of described motor driven; And
Dust cap between described protecgulum and described location-plate, and is set on described first guide rod slidably, and described dust cap is provided with described gear matched and makes the tooth bar that described dust cap opens or closes;
Wherein, described first guide rod comprises second state that described tooth bar and described gearing mesh make that described tooth bar made the first guide rod elastic deformation and described rack and pinion be in contact with one another with the tooth peak when described dust cap had foreign matter to snap at first state that slides on first guide rod and in the closed procedure of dust cap pass.
According to dust-proof cover device described in the utility model, described first guide rod and the distortion loading of bearing when foreign matter snaps in thereof meet the following conditions: distortion loading=(the two ends point of fixity of the vertical elasticity coefficient * first guide rod cross sectional moment of inertia * first guide rod of the material of 3* first guide rod is apart from * loading deflection)/(each point of fixity of the two ends of first guide rod is to the distance product of loading deformation point).
According to dust-proof cover device described in the utility model, first end of described dust cap is provided with two first lugs, first end face of described location-plate is provided with two second lugs, described first lug is set on described first guide rod slidably, and the two ends of described first guide rod are by described second lug and fixing.
According to dust-proof cover device described in the utility model, on second end of described dust cap, be provided with two the 3rd lugs, on second end face of described location-plate, be provided with two the 4th lugs, described dust-proof cover device also comprises second guide rod, and described the 3rd lug is set on described second guide rod slidably, and the two ends of described second guide rod are by described the 4th lug and fixing.
According to dust-proof cover device described in the utility model, be connected with the drive unit installing plate vertical between described second lug with described location-plate, described drive unit is fixed on the described drive unit installing plate.
According to dust-proof cover device described in the utility model, described tooth bar is arranged on the bottom of described dust cap, and its bearing of trend is parallel with the direction of described first guide rod.
According to dust-proof cover device described in the utility model, described gear comprises: first gear, be fixed on the motor drive shaft of described motor; And second gear, be fixed on the described drive unit installing plate, and with described first gear and the engagement of described tooth bar.
According to dust-proof cover device described in the utility model, near the two ends of described first guide rod, be provided with two-way aware switch.
According to dust-proof cover device described in the utility model, described location-plate is provided with the hole, with hole on the described protecgulum over against.
Implement dust-proof cover device of the present utility model, have following beneficial effect: in the process that dust cap cuts out, if there is foreign matter to snap in, slight deformation upwards takes place in first guide rod, makes the closing course of dust cap end.After external force was cancelled, each assembly homing can prevent the injury that the people produces for maloperation.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of a kind of projector dust-proof cover device in the prior art;
Fig. 2 is the synoptic diagram when dust-proof cover device is closed in the utility model;
Fig. 3 is the synoptic diagram when dust-proof cover device is opened in the utility model;
Fig. 4 is the decomposing schematic representation of dust-proof cover device and protecgulum in the utility model;
Fig. 5 is the rear view of dust-proof cover device in the utility model;
Fig. 6 is the sectional view of A-A in Fig. 6;
Fig. 7 is the sectional view of B-B in Fig. 6;
Fig. 8 is the cut-open view of C-C in Fig. 6;
Fig. 9 is the upward view of dust-proof cover device in the utility model;
Figure 10 is the synoptic diagram of dust-proof cover device of the present utility model under the clear state;
Figure 11 is that dust-proof cover device of the present utility model is at the synoptic diagram that has under the barrier state.
Embodiment
Fig. 2 and Fig. 3 show dust-proof cover device of the present utility model respectively at synoptic diagram closed and when opening.In this embodiment, be that example is illustrated with the projector, but the utility model is not limited to this, this dust-proof cover device also can be applicable to other electronic equipment, for example camera etc.As shown in Figures 2 and 3, the main body 100 of projector comprises protecgulum 101, and accommodates camera lens (not shown) in main body 100.Protecgulum 101 is provided with hole 102, passes through camera lens for light.Between protecgulum 101 and camera lens, be provided with dust-proof cover device 103.When projector was in user mode, dust-proof cover device 103 was opened; Under the non-working condition, dust-proof cover device 103 is closed.
Fig. 4 is the decomposing schematic representation of dust-proof cover device 103 and protecgulum 101 in the utility model.With reference to Fig. 4, this dust-proof cover device 103 comprise location-plate 104 and be slidably disposed on location-plate 104 and protecgulum 101 between dust cap 105.Also be provided with on the location-plate 104 porose 106, with hole 102 on the protecgulum 101 over against, pass through for light.For convenience, dust cap 105 is called down direction towards the direction of location-plate 104, and dust cap 105 is called up direction towards the direction of protecgulum 101 at this.
This dust cap 105 is lamellar, can be as shown in the figure square, also can be other shape, and circle etc. for example is as long as can block hole 102 on the protecgulum 101 fully.The first end 105a of dust cap 105 is provided with two first lugs 107, and this first lug 107 is concordant towards the surperficial 105b of protecgulum 101 with dust cap 105, and extends towards the direction of location-plate 104 from this surface 105b.In illustrated embodiment, two first lugs 107 are positioned at two jiaos of dust cap 105, and its spacing equals the width of dust cap 105, and two first lugs 107 link to each other by web joint 109 towards the lower end of location-plate 104.The first end 105a of this web joint 109 and dust cap 105 forms the accommodation section 110 of semi open model jointly.
On first lug 107, be provided with porose 108.On the first end face 104a of location-plate 104 correspondences, be provided with two second lugs, 111, the second lugs 111 and be provided with hole 112.Wherein the spacing between second lug 111 is preferably the twice at least of dust cap 105 width, so that dust-proof cover device 103 is when doing closing motion, dust cap 105 just has enough accommodation spaces to take in.First guide rod 113 passes the hole 108 from two first lugs 107 of dust cap 105, and two ends are respectively by the hole 112 on second lug 111, and fixing by two locating shims 114.Wherein, the diameter in the hole 108 on first lug 107 makes dust cap 105 to slide along first guide rod 113 greater than the external diameter of first guide rod 113.
On the dust cap 105 and the first end 105a second opposed end 105c, be provided with the middle part of two the 3rd lugs, 115, the three lugs 115 near the second end 105c of dust cap 105, the 3rd lug 115 is provided with hole (not shown).On the location-plate 104, with the first end face 104a second opposed end face 104b on, be provided with two the 4th lugs 116, it is provided with hole (not shown).After second guide rod 117 passed two the 3rd lugs 115 of dust cap 105, the hole of the 4th lug 116 was passed at two ends respectively, and fixing by two locating shims 118.Wherein, the diameter in the hole on the 3rd lug 115 makes dust cap 105 to slide along second guide rod 117 greater than the external diameter of second guide rod 117.Because the 3rd lug 115 is near the middle part of the second end 105c of dust cap 105, therefore the length of second guide rod 117 is roughly half of first guide rod 113, and the center line of second guide rod 117 overlaps with the center line of first guide rod 113.
When dust cap 105 slides into the left end of first guide rod 113, the hole on the protecgulum 101 102 is covered fully; When dust cap 105 slided into the right-hand member of first guide rod 113, opened fully in the hole 102 on the protecgulum 101.
In conjunction with Fig. 4 to Fig. 8, the position at 112 places, hole on second lug 111 exceeds the upper surface of location-plate 104, and second lug 111 extends down, is connected with the drive unit installing plate 119 vertical with location-plate 104 between the two.On the drive unit installing plate 119, near the two ends of first guide rod 113, be set with two-way aware switch 135.At drive unit installing plate 119 middle parts, also be provided with two connecting holes 120, between is provided with through hole 121.The motor drive shaft 124 of motor 125, is paid a hole 126 with the screw lock on the motor 125 and is cooperated behind the connecting hole 120 that screw 123 passes through on the location-plate 104 by behind the through hole 121, and motor 125 is fixed on the drive unit installing plate 119.
On motor drive shaft 124, fixed cover is provided with first gear 127, when motor 125 runnings, can drive first gear 127 and rotate.Near through hole 121, also be provided with another through hole 128.Gear shaft 129 is arranged with spring 130, gear plate 131 and second gear 132 successively by this through hole 128 on it.The end of gear shaft 129 is provided with locating shim 133, makes second gear 132 fixing. Second gear 132 and 127 engagements of first gear.
Fig. 9 is the upward view of dust-proof cover device 103 in the utility model.With reference to Fig. 9, be provided with the tooth bar 134 that meshes with second gear 132 in the bottom of dust cap 105.The bearing of trend of this tooth bar 134 is parallel with the direction of first guide rod 113, and the engagement of this tooth bar 134 and second gear 132 makes the guide rod 113 of winning have two states.As shown in figure 10, when first guide rod 113 was in first state, motor 125 runnings drove first gear 127,132 rotations of second gear by motor drive shaft 124, and by the engagement of second gear 132 with tooth bar 134, drive dust cap 105 and slide.
With reference to Figure 11, in the process that dust cap 105 cuts out, foreign matter is arranged, when for example finger snapped in, first gear 127, second gear 132 still continued to rotate, but tooth bar 134 can not continue to move ahead.Under the acting force of the barrier force of foreign matter and second gear 132, slight elastic deformation upwards takes place in first guide rod 113, switches to second state, and this moment second, gear 132 was thrown off with tooth peak, the tooth paddy of tooth bar 134, and be in contact with one another with the tooth peak, thereby clutch is beated in the original place.Tooth bar 134 stops to move ahead, and makes the closing course of dust cap 105 end.
Distortion loading=(the two ends point of fixity of the vertical elasticity coefficient * first guide rod cross sectional moment of inertia * first guide rod of the material of 3* first guide rod is apart from * loading deflection)/(each point of fixity of the two ends of first guide rod is to the distance product of loading deformation point).
Can design the two ends point of fixity distance and the diameter of first guide rod 113 according to the demand of loading and deflection, and select the material of first guide rod 113.Because these parameters can have multiple combination, do not enumerate one by one at this.
In the process that dust cap 105 cuts out, if there is foreign matter to snap in, the slight elasticity distortion upwards takes place in first guide rod 113, makes the closing course of dust cap 105 end.After external force was cancelled, each assembly homing can prevent the injury that the people produces for maloperation.
Claims (8)
1. the dust-proof cover device of an anti-tong is applied to an electronic equipment with the hole on the protecgulum of opening or closing described electronic equipment, it is characterized in that described dust-proof cover device comprises:
Location-plate is fixed with first guide rod on it;
Drive unit is fixed on the described location-plate, comprises motor and by the gear of described motor driven; And
Dust cap between described protecgulum and described location-plate, and is set on described first guide rod slidably, and described dust cap is provided with described gear matched and makes the tooth bar that described dust cap opens or closes;
Wherein, described first guide rod comprises second state that described tooth bar and described gearing mesh make that described tooth bar made the first guide rod elastic deformation and described rack and pinion be in contact with one another with the tooth peak when described dust cap had foreign matter to snap at first state that slides on first guide rod and in the closed procedure of dust cap pass.
2. dust-proof cover device according to claim 1, it is characterized in that, first end of described dust cap is provided with two first lugs, first end face of described location-plate is provided with two second lugs, described first lug is set on described first guide rod slidably, and the two ends of described first guide rod are by described second lug and fixing.
3. dust-proof cover device according to claim 2, it is characterized in that, on second end of described dust cap, be provided with two the 3rd lugs, on second end face of described location-plate, be provided with two the 4th lugs, described dust-proof cover device also comprises second guide rod, described the 3rd lug is set on described second guide rod slidably, and the two ends of described second guide rod are by described the 4th lug and fixing.
4. dust-proof cover device according to claim 2 is characterized in that, is connected with the drive unit installing plate vertical with described location-plate between described second lug, and described drive unit is fixed on the described drive unit installing plate.
5. dust-proof cover device according to claim 2 is characterized in that described tooth bar is arranged on the bottom of described dust cap, and its bearing of trend is parallel with the direction of described first guide rod.
6. dust-proof cover device according to claim 4 is characterized in that, described gear comprises: first gear, be fixed on the motor drive shaft of described motor; And second gear, be fixed on the described drive unit installing plate, and with described first gear and the engagement of described tooth bar.
7. dust-proof cover device according to claim 2 is characterized in that, near the two ends of described first guide rod, is provided with two-way aware switch.
8. dust-proof cover device according to claim 1 is characterized in that described location-plate is provided with the hole, with hole on the described protecgulum over against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201584211U CN201569845U (en) | 2009-05-21 | 2009-05-21 | Finger-protective dust cover device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201584211U CN201569845U (en) | 2009-05-21 | 2009-05-21 | Finger-protective dust cover device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201569845U true CN201569845U (en) | 2010-09-01 |
Family
ID=42662140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201584211U Expired - Fee Related CN201569845U (en) | 2009-05-21 | 2009-05-21 | Finger-protective dust cover device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201569845U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073202A (en) * | 2010-11-08 | 2011-05-25 | 深圳雅图数字视频技术有限公司 | Projector with password function |
| CN102608849A (en) * | 2012-03-23 | 2012-07-25 | 深圳雅图数字视频技术有限公司 | Projector lens protection device and projector |
| CN102650816A (en) * | 2011-02-23 | 2012-08-29 | 亚洲光学股份有限公司 | Cap module of optical lens |
| WO2021043109A1 (en) * | 2019-09-03 | 2021-03-11 | 深圳光峰科技股份有限公司 | Horizontal sliding door movement mechanism and projection device |
-
2009
- 2009-05-21 CN CN2009201584211U patent/CN201569845U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073202A (en) * | 2010-11-08 | 2011-05-25 | 深圳雅图数字视频技术有限公司 | Projector with password function |
| CN102650816A (en) * | 2011-02-23 | 2012-08-29 | 亚洲光学股份有限公司 | Cap module of optical lens |
| CN102650816B (en) * | 2011-02-23 | 2015-03-25 | 亚洲光学股份有限公司 | Cap module of optical lens |
| CN102608849A (en) * | 2012-03-23 | 2012-07-25 | 深圳雅图数字视频技术有限公司 | Projector lens protection device and projector |
| WO2021043109A1 (en) * | 2019-09-03 | 2021-03-11 | 深圳光峰科技股份有限公司 | Horizontal sliding door movement mechanism and projection device |
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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: 20100901 Termination date: 20150521 |
|
| EXPY | Termination of patent right or utility model |