CN204331277U - Projection film rapid fixing - Google Patents
Projection film rapid fixing Download PDFInfo
- Publication number
- CN204331277U CN204331277U CN201520025744.9U CN201520025744U CN204331277U CN 204331277 U CN204331277 U CN 204331277U CN 201520025744 U CN201520025744 U CN 201520025744U CN 204331277 U CN204331277 U CN 204331277U
- Authority
- CN
- China
- Prior art keywords
- projection film
- fixing
- main body
- handle
- pressing cylinder
- 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
Links
- 230000000694 effects Effects 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 240000007643 Phytolacca americana Species 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Tents Or Canopies (AREA)
Abstract
The utility model discloses a kind of projection film rapid fixing, described projection film rapid fixing comprises a fixed muffle and a fixing pressure cylinder, described fixed muffle comprises the sleeve body of the hollow of a cylindrical shape, the sidewall of described sleeve body is provided with the oblong adjustment notch run through for a pair, the top of described sleeve body is provided with the limited location snap ring of an annular, and described sleeve body is provided with a dismountable back-moving spring.The advantage of projection film rapid fixing of the present utility model is: user is when fixing projection film, as long as stir the handle knob of barre, make fixing pressure cylinder lifting, projection film is placed into the below of the fixed pawl of star, then release handle knob, under the effect of back-moving spring, fixing pressure cylinder declines and presses projection film, is fixedly secured by projection film, simple to operate, fixation, is particularly suitable for using in Multimedia Teaching.
Description
Technical Field
The utility model relates to a multimedia teaching aid, more precisely, is a projection film quick fixation device.
Background
A film projector is a common multimedia teaching device, and generally uses transparent film as a medium to print the content to be projected directly onto the film. The film of the existing film projector is fixed at four corners of projection glass by utilizing the clips, so that the film is easy to slip on one hand, and the surface of the film is easy to damage on the other hand.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve the technical problem that prior art exists to a projection film quick fixation device is provided.
The above technical problem of the present invention can be solved by the following technical solutions:
a projection film quick fixing device comprises a fixing sleeve and a fixing pressing cylinder, wherein the fixing sleeve comprises a cylindrical hollow sleeve main body, a pair of through long circular adjusting notches are formed in the side wall of the sleeve main body, an annular limiting snap ring is arranged at the top of the sleeve main body, a detachable reset spring is arranged on the sleeve main body, the fixing pressing cylinder comprises a cylindrical pressing cylinder main body, a star-shaped fixing pawl is arranged at the bottom of the pressing cylinder main body, a through pressing cylinder through hole is formed in the top of the pressing cylinder main body, a movable driving shaft rod is arranged in the sleeve main body, the driving shaft rod comprises a rod-shaped shaft rod main body, a cylindrical protruding head is arranged at the bottom of the shaft rod main body, and a shaft rod through hole is formed in the protruding shaft rod, the through hole of the shaft lever is internally provided with a horizontally arranged handle bar which penetrates through the adjusting notch.
As the embodiment of the utility model provides a preferred, the barre contain a shaft-like barre main part, the both ends of barre main part be equipped with a cylindrical handle knob respectively, the barre main part with handle knob between be equipped with a jump ring annular respectively, the jump ring annular in be equipped with a jump ring respectively.
As the preferred embodiment of the utility model, the fixed pressing cylinder is integrally formed by plastic.
The utility model discloses a quick fixing device of projection film's advantage is: the user is when fixed projection film, as long as stir the handle knob of barre for fixed pressure section of thick bamboo lifting is placed the projection film below of the fixed pawl of star, then releases the handle knob, and under reset spring's effect, fixed pressure section of thick bamboo descends and sticiss the projection film, firmly fixes the projection film, easy operation, and is fixed firm, is particularly suitable for the multimedia teaching in-process and uses.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic perspective view of a device for rapidly fixing a projection film according to the present invention;
FIG. 2 is an exploded perspective view of the projection film quick mount of FIG. 1;
FIG. 3 is an enlarged detail view of area A of the projection film quick mount of FIG. 2;
FIG. 4 is an enlarged detail view of the area B of the projection film quick mount of FIG. 2;
FIG. 5 is a further exploded perspective view of the projection film quick mount of FIG. 2;
FIG. 6 is an enlarged detail view of area C of the projection film quick mount of FIG. 5;
wherein,
1. a projection film quick fixing device; 2. fixing the sleeve; 21. a sleeve body; 22. a limit snap ring; 23. adjusting the notch; 3. a return spring; 4. a drive shaft; 41. a shaft body; 42. the shaft rod protrudes; 43. a shaft lever through hole; 5. a handle bar; 51. a main body of the handle bar; 52. a hand knob; 53. a snap spring ring groove; 54. a clamp spring; 6. fixing the pressing cylinder; 61. a pressing cylinder main body; 62. fixing the pawl; 63. and a through hole of the pressing cylinder.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
As shown in fig. 1 to 6, a projection film fast fixing device 1 of the present invention comprises a fixing sleeve 2 and a fixing pressing cylinder 6, wherein the fixing sleeve 2 comprises a hollow cylindrical sleeve body 21, a pair of through oblong adjusting notches 23 are formed on a side wall of the sleeve body 21, an annular limiting snap ring 22 is disposed on a top of the sleeve body 21, a detachable reset spring 3 is disposed on the sleeve body 21, the fixing pressing cylinder 6 comprises a cylindrical pressing cylinder body 61, a star-shaped fixing pawl 62 is disposed on a bottom of the pressing cylinder body 61, a through pressing cylinder through hole 63 is disposed on a top of the pressing cylinder body 61, a movable driving shaft 4 is disposed in the sleeve body 21, the driving shaft 4 comprises a rod-shaped shaft body 41, a cylindrical shaft protruding head 42 is disposed on a bottom of the shaft body 41, a shaft through hole 43 is disposed on the shaft protruding head 42, the shaft rod through hole 43 is provided with a transversely arranged handle rod 5, and the handle rod 5 penetrates through the adjusting notch 23.
The handle 5 includes a rod-shaped handle body 51, a cylindrical handle knob 52 is respectively disposed at two ends of the handle body 51, a snap ring groove 53 is respectively disposed between the handle knob 52 and the handle body 51, and a snap ring 54 is respectively disposed in the snap ring groove 53.
The fixed pressure cylinder 6 is integrally formed of plastic.
When the projection film fixing device is used, as shown in fig. 1 and 2, when a user fixes a projection film, the user only needs to poke the handle knob 52 of the handle rod 5 to lift the fixed pressing cylinder 6, place the projection film below the star-shaped fixed pawl 62, then release the handle knob 52, and under the action of the reset spring 3, the fixed pressing cylinder 6 descends and tightly presses the projection film to firmly fix the projection film.
Without being limited thereto, any changes or substitutions which are not thought of through creative efforts should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (3)
1. A quick fixing device for a projection film is characterized in that the quick fixing device (1) for the projection film comprises a fixing sleeve (2) and a fixing pressing cylinder (6), the fixing sleeve (2) comprises a hollow cylindrical sleeve main body (21), a pair of through long circular adjusting notches (23) is formed in the side wall of the sleeve main body (21), an annular limiting snap ring (22) is arranged at the top of the sleeve main body (21), a detachable reset spring (3) is arranged on the sleeve main body (21), the fixing pressing cylinder (6) comprises a cylindrical pressing cylinder main body (61), a star-shaped fixing pawl (62) is arranged at the bottom of the pressing cylinder main body (61), a through pressing cylinder through hole (63) is formed in the top of the pressing cylinder main body (61), and a movable driving shaft rod (4) is arranged in the sleeve main body (21), the driving shaft lever (4) comprises a shaft lever main body (41), a cylindrical shaft lever protruding head (42) is arranged at the bottom of the shaft lever main body (41), a shaft lever through hole (43) is formed in the shaft lever protruding head (42), a transversely arranged handle bar (5) is arranged in the shaft lever through hole (43), and the handle bar (5) penetrates through the adjusting notch (23).
2. The projection film quick fixing device according to claim 1, wherein the handle (5) comprises a rod-shaped handle body (51), a cylindrical handle knob (52) is respectively arranged at two ends of the handle body (51), a snap spring ring groove (53) is respectively arranged between the handle body (51) and the handle knob (52), and a snap spring (54) is respectively arranged in the snap spring ring groove (53).
3. The projection film quick fixing device according to claim 2, wherein the fixing pressure cylinder (6) is integrally formed of plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520025744.9U CN204331277U (en) | 2015-01-15 | 2015-01-15 | Projection film rapid fixing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520025744.9U CN204331277U (en) | 2015-01-15 | 2015-01-15 | Projection film rapid fixing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204331277U true CN204331277U (en) | 2015-05-13 |
Family
ID=53167619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520025744.9U Expired - Fee Related CN204331277U (en) | 2015-01-15 | 2015-01-15 | Projection film rapid fixing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204331277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107284504A (en) * | 2017-07-03 | 2017-10-24 | 胡小丽 | A kind of doll carriage of having electronic induction balance |
-
2015
- 2015-01-15 CN CN201520025744.9U patent/CN204331277U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107284504A (en) * | 2017-07-03 | 2017-10-24 | 胡小丽 | A kind of doll carriage of having electronic induction balance |
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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: 20150513 Termination date: 20160115 |
|
| EXPY | Termination of patent right or utility model |