CN212569410U - Projection arrangement of management teaching usefulness - Google Patents
Projection arrangement of management teaching usefulness Download PDFInfo
- Publication number
- CN212569410U CN212569410U CN202020969621.1U CN202020969621U CN212569410U CN 212569410 U CN212569410 U CN 212569410U CN 202020969621 U CN202020969621 U CN 202020969621U CN 212569410 U CN212569410 U CN 212569410U
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- projection
- projection cloth
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- sets
- mounting
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Abstract
The utility model relates to the technical field of projection cloth, and discloses a projection device for management teaching, which comprises a mounting rack; the mounting bracket specifically is two sets of, two sets of the perpendicular rotation in mounting bracket right-hand member middle part has run through the bull stick, the upper and lower both ends symmetrical welding of bull stick has spacing dish, and is two sets of be provided with volute spiral spring between spacing dish and the two sets of mounting brackets, and is two sets of spacing spout has been seted up to a side middle part symmetry in opposite directions of mounting bracket, and is two sets of transversely be provided with projection cloth between the mounting bracket, the right-hand member and the bull stick fixed connection of projection cloth, the upper and lower bilateral symmetry of projection cloth bonds and has the plastic. The utility model discloses for traditional projection cloth, this device is at the in-process of in-service use, through the mode of transversely expanding for the expansion convenience more of projection cloth, and spacing ball, plastic sheet and spacing spout carry on spacingly to projection cloth, can effectually avoid projection cloth to take place to rock when using and influence the projection effect.
Description
Technical Field
The utility model relates to a projection cloth technical field specifically is a projection arrangement that teaching of management science was used.
Background
In modern teaching facilities, nearly every school can install teaching projection arrangement, and teaching projection arrangement mainly passes through 3MLCOSRGB three-colour projection ray apparatus and 720P piece decoding technology, and is exquisite, miniaturized, the practicality to the huge projector of tradition, makes projection technology press close to life and amusement more.
However, the conventional projection cloth for the projector cannot be conveniently unfolded and folded in the actual use process, and the unfolded projection cloth is easily affected by wind, and is shaken to affect the projection effect.
In order to solve the problem, the utility model provides a projection arrangement that teaching of management science was used.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a projection arrangement of management science teaching usefulness has solved the problem that proposes in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a projection device for management teaching comprises a mounting rack;
the mounting bracket specifically is two sets of, and is two sets of the perpendicular commentaries on classics of running through has the bull stick in mounting bracket right-hand member middle part, the upper and lower both ends symmetrical welding of bull stick has spacing dish, and is two sets of be provided with volute spiral spring between spacing dish and the two sets of mounting bracket, and is two sets of spacing spout has been seted up to a side middle part symmetry in opposite directions of mounting bracket, and is two sets of transversely be provided with projection cloth between the mounting bracket, the right-hand member and the bull stick fixed connection of projection cloth, the upper and lower bilateral symmetry of projection cloth bonds and has the plastic sheet, and is two sets of the one end that projection cloth was kept away from to the plastic sheet all is fixed to bond has spacing ball, and is two sets of.
As an embodiment of the present invention, it is two sets of a mounting plate is integrally formed on a rear side of a side surface of the mounting frame opposite to the mounting frame, and the mounting plate is two sets of fixing bolts are all installed on the mounting plate in a penetrating manner.
As a preferred embodiment of the present invention, two sets of the two ends of the spiral spring are respectively fixed and welded on two sets of spacing discs and two sets of opposite side surfaces of the mounting rack.
As a preferred embodiment of the utility model, the fixed handle that bonds in gag lever post left side.
As an optimal implementation manner of the utility model, it is two sets of the equal vertical draw-in groove of having seted up in mounting bracket left surface middle part.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model relates to a projection device for management teaching, when projection cloth is needed to be used, the limiting rod is pulled by the handle, the limiting rod drives the projection cloth to move through the connecting rope, the rotating rod is driven to rotate in the process that the projection cloth moves to the left side, the volute spiral spring is compressed through the limiting disc in the rotating process of the rotating rod, meanwhile, the projection cloth drives the limiting ball to move transversely along the inner cavity of the limiting chute through the plastic sheet, then the limiting rod is moved into the clamping groove at the left side of the mounting rack, then the projection cloth can be transversely unfolded for use, compared with the traditional projection cloth, the device has the advantages that in the actual use process, through the mode of horizontal expansion for the expansion of projection cloth is more convenient, and spacing ball, plastic sheet and spacing spout carry on spacingly to projection cloth, can effectually avoid projection cloth to take place to rock when using and influence the projection effect.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a front view of a projection apparatus for teaching management;
fig. 2 is a front sectional view of the projection apparatus for teaching management;
fig. 3 is a front view of the projector for teaching management science according to the present invention after the projection cloth is contracted;
fig. 4 is the utility model relates to a plan view of projection arrangement's of management teaching usefulness.
In the figure: connecting rope 1, handle 2, gag lever post 3, mounting bracket 4, plastic sheet 5, projection cloth 6, volute spiral spring 7, spacing dish 8, draw-in groove 9, spacing spout 10, spacing ball 11, bull stick 12, mounting panel 13, fixing bolt 14.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the utility model discloses in the model of providing with electrical apparatus only supplies the reference, to the ordinary technical personnel in this field, can change the different models that the function is the same according to the in service use condition and use electrical apparatus, to the ordinary technical personnel in this field, can the particular case understand that above-mentioned term is in the utility model provides a concrete meaning.
Referring to fig. 1-4, the present invention provides a technical solution: a projection device for management teaching comprises a mounting frame 4;
In this embodiment (see fig. 1), when the projection cloth 6 needs to be used, the handle 2 pulls the limiting rod 3, the limiting rod 3 drives the projection cloth 6 to move through the connecting rope 1, the rotating rod 12 is driven to rotate in the process that the projection cloth 6 moves to the left, the spiral spring 7 is compressed by the limiting disc 8 in the process that the rotating rod 12 rotates, meanwhile, the projection cloth 6 drives the limit ball 11 to transversely move along the inner cavity of the limit sliding groove 10 through the plastic sheet 5, then the limiting rod 3 is moved into the clamping groove 9 at the left side of the mounting frame 4, then the projection cloth 6 can be transversely unfolded for use, compared with the traditional projection cloth, the device has the advantages that in the actual use process, through the mode of horizontal expansion for the expansion of projection cloth is more convenient, and spacing ball 11, plastic sheet 5 and spacing spout 10 carry on spacingly to projection cloth 6, can effectually avoid projection cloth 6 to take place to rock when using and influence the projection effect.
Wherein, two sets of the homogeneous shaping of a side rear side that mounting bracket 4 is in opposite directions has mounting panel 13, and is two sets of all install through fixing bolt 14 on the mounting panel 13.
In this embodiment (see fig. 1), the device can be fixedly mounted on the wall surface by the fixing bolt 14 through the arrangement of the fixing bolt 14.
Wherein, two ends of two sets of spiral spring 7 are fixed respectively and weld on two sets of spacing dish 8 and two sets of mounting bracket 4 one side in opposite directions.
In this embodiment (see fig. 1), after the limiting rod 3 is taken out from the cavity of the slot 9 through the arrangement of the spiral spring 7, the limiting disc 8 drives the rotating rod 12 to rotate under the action of the elastic force of the spiral spring 7, so that the rotating rod 12 winds the projection cloth 6.
Wherein, the handle 2 is fixedly bonded on the left side of the limiting rod 3.
In this embodiment (see fig. 1), the handle 2 is arranged to drive the limiting rod 3 to move through the handle 2.
Wherein, two sets of the middle part of the left side of the mounting bracket 4 is vertically provided with a clamping groove 9.
In this embodiment (please refer to fig. 1), the limiting rod 3 is placed on the left side of the mounting frame 4 by the arrangement of the clamping groove 9, so that the limiting rod 3 can be clamped into the clamping groove 9.
It should be noted that, the utility model relates to a projection arrangement that management science teaching was used, including connecting rope 1, handle 2, gag lever post 3, mounting bracket 4, plastic sheet 5, projection cloth 6, volute spring 7, spacing dish 8, draw-in groove 9, spacing spout 10, spacing ball 11, bull stick 12, mounting panel 13, fixing bolt 14, the part is the general standard component or the part that technical staff in the field knows, and its structure and principle all can learn through the technical manual or learn through conventional experimental method for this technical staff.
The working principle of the device is that when the device is used, the device can be fixedly arranged on a wall surface through the fixing bolt 14, when the projection cloth 6 is needed to be used, the limiting rod 3 is pulled through the handle 2, the limiting rod 3 drives the projection cloth 6 to move through the connecting rope 1, the rotating rod 12 is driven to rotate in the process that the projection cloth 6 moves to the left side, the volute spiral spring 7 is compressed through the limiting disc 8 in the rotating process of the rotating rod 12, meanwhile, the projection cloth 6 drives the limiting ball 11 to transversely move along the inner cavity of the limiting sliding groove 10 through the plastic sheet 5, then the limiting rod 3 is moved into the clamping groove 9 on the left side of the mounting frame 4, and then the projection cloth 6 can be transversely unfolded for use, so that compared with the traditional projection cloth, the device is more convenient to unfold the projection cloth in the actual use process, the projection cloth is more conveniently by the transverse unfolding mode, and the limiting ball 11, the plastic sheet 5 and the limiting sliding groove 10, can effectually avoid projection cloth 6 to take place to rock when using and influence the projection effect.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A projection device for teaching management, comprising a mounting frame (4);
the novel projection device is characterized in that the mounting racks (4) are specifically two groups, the middle parts of the right ends of the two groups of mounting racks (4) are vertically rotated to penetrate through rotating rods (12), limiting discs (8) are symmetrically welded at the upper ends and the lower ends of the rotating rods (12), volute springs (7) are arranged between the two groups of limiting discs (8) and the two groups of mounting racks (4), limiting sliding grooves (10) are symmetrically formed in the middle parts of opposite sides of the two groups of mounting racks (4), projection cloth (6) is transversely arranged between the two groups of mounting racks (4), the right ends of the projection cloth (6) are fixedly connected with the rotating rods (12), plastic sheets (5) are symmetrically bonded on the upper sides and the lower sides of the projection cloth (6), limiting balls (11) are fixedly bonded on one ends, far away from the projection cloth (6), of the two groups of plastic sheets (5), and the two groups of, the left end of the projection cloth (6) is fixedly connected with the limiting rod (3) through the connecting rope (1).
2. The projection device for teaching of management science according to claim 1, characterized in that: two sets of a side rear side homogeneous body shaping in opposite directions of mounting bracket (4) has mounting panel (13), and is two sets of all run through on mounting panel (13) and install fixing bolt (14).
3. The projection device for teaching of management science according to claim 1, characterized in that: two ends of the two groups of volute spiral springs (7) are respectively and fixedly welded on one side face of the two groups of limiting discs (8) and one side face of the two groups of mounting frames (4) which face each other.
4. The projection device for teaching of management science according to claim 1, characterized in that: and a handle (2) is fixedly bonded on the left side of the limiting rod (3).
5. The projection device for teaching of management science according to claim 1, characterized in that: and clamping grooves (9) are vertically formed in the middle of the left side surface of each of the two groups of mounting frames (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020969621.1U CN212569410U (en) | 2020-06-01 | 2020-06-01 | Projection arrangement of management teaching usefulness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020969621.1U CN212569410U (en) | 2020-06-01 | 2020-06-01 | Projection arrangement of management teaching usefulness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212569410U true CN212569410U (en) | 2021-02-19 |
Family
ID=74637649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020969621.1U Expired - Fee Related CN212569410U (en) | 2020-06-01 | 2020-06-01 | Projection arrangement of management teaching usefulness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212569410U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115035754A (en) * | 2022-07-11 | 2022-09-09 | 山东财经大学 | Many function body educate teaching device based on remove display screen |
-
2020
- 2020-06-01 CN CN202020969621.1U patent/CN212569410U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115035754A (en) * | 2022-07-11 | 2022-09-09 | 山东财经大学 | Many function body educate teaching device based on remove display screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210219 |