CN212009889U - Projection arrangement is used in economic management teaching - Google Patents
Projection arrangement is used in economic management teaching Download PDFInfo
- Publication number
- CN212009889U CN212009889U CN202020924142.8U CN202020924142U CN212009889U CN 212009889 U CN212009889 U CN 212009889U CN 202020924142 U CN202020924142 U CN 202020924142U CN 212009889 U CN212009889 U CN 212009889U
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- Prior art keywords
- economic management
- shell
- management teaching
- open shell
- projecting apparatus
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- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of projection devices, and discloses a projection device for economic management teaching, which comprises an open shell, wherein one side of the open shell is provided with an opening, and the opening of the open shell is rotatably connected with a baffle through a hinge; the top of the open shell is provided with a telescopic pipe fitting, and the telescopic pipe fitting is provided with a positioning piece; the inside fixed mounting of uncovered shell has hollow core plate, it is provided with the projecting apparatus body to slide along the horizontal direction on the hollow core plate, the top fixed mounting of projecting apparatus body has the rack, the inside fixed mounting of uncovered shell has actuating mechanism, and actuating mechanism and rack toothing. The utility model is beneficial to flexibly adjusting the position of the projector body in the vertical direction by arranging the telescopic pipe fitting and the positioning piece; through the baffle space that blocks that baffle and uncovered shell enclose, played the effect that shelters from the dust when not using to the projecting apparatus body.
Description
Technical Field
The utility model relates to a projection arrangement technical field specifically is a projection arrangement is used in economic management teaching.
Background
The economic management is mainly researched by taking major management problems in the economic field as a main research object, has obvious management research characteristics based on economics, is concentrated on the first-level discipline of industrial and commercial management and a plurality of closely related public management aspects thereof, is dedicated to embodying the academic level of the management research of the industrial and commercial workers in China, and is developed with society and convenient for teaching and showing, a projector is usually adopted for projection so as to assist in teaching.
And current projecting apparatus is when using, because the mounted position is comparatively fixed, some projecting apparatus are unfavorable for when the installation adjust the height of vertical direction, and the projecting apparatus is when not using simultaneously, easily causes a large amount of dusts to adhere to, influences the projection effect on the one hand, and on the other hand influences the cleanliness factor of projecting apparatus.
In order to solve the problem, the application provides a projection device for economic management teaching.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
In order to solve the technical problems existing in the background technology, the utility model provides a projection device for economic management teaching, which is beneficial to flexibly adjusting the position of a projector body in the vertical direction by arranging a telescopic pipe fitting and a positioning piece; through the baffle space that blocks that baffle and uncovered shell enclose, played the effect that shelters from the dust when not using to the projecting apparatus body.
(II) technical scheme
In order to solve the problems, the utility model provides a projection device for economic management teaching, which comprises an open shell, wherein one side of the open shell is provided with an opening, and the opening of the open shell is rotatably connected with a baffle plate through a hinge;
the top of the open shell is provided with a telescopic pipe fitting, and the telescopic pipe fitting is provided with a positioning piece;
the inside fixed mounting of uncovered shell has hollow core plate, it is provided with the projecting apparatus body to slide along the horizontal direction on the hollow core plate, the top fixed mounting of projecting apparatus body has the rack, the inside fixed mounting of uncovered shell has actuating mechanism, and actuating mechanism and rack toothing.
Preferably, the telescopic pipe fitting comprises sleeve pipe and regulation pole, the top of adjusting the pole stretches into sheathed tube inside to with sleeve pipe sliding connection, the bottom of adjusting the pole and the top fixed connection of uncovered shell.
Preferably, the setting element comprises drawing piece, locating lever and spring, the one end of locating lever with draw piece fixed connection, the other end of locating lever stretches into the inside of sleeve pipe and regulation pole to respectively with sleeve pipe and regulation pole sliding connection, the spring activity cup joints on the locating lever, the one end and the sheathed tube outer wall fixed connection of spring, the other end and the drawing piece fixed connection of spring.
Preferably, the driving mechanism consists of a driving motor and a driving gear, the driving motor is fixedly installed inside the open shell, the driving gear is fixedly sleeved on a driving shaft of the driving motor, and the driving gear is meshed with the rack.
Preferably, the inside of hollow core plate has seted up the spout along the horizontal direction, and the inside sliding connection of spout has the stopper, the top fixed mounting of stopper has the connecting rod, the top of connecting rod pass the spout and with the bottom fixed connection of projecting apparatus body to with the inner wall sliding connection of spout.
Preferably, one side of the top of the hollow plate, which is close to the baffle, is fixedly provided with a roller, and the roller is in rolling connection with the top of the projector body.
Preferably, the adjusting rod is provided with a plurality of positioning grooves, and the positioning grooves are matched with the positioning rods.
The above technical scheme of the utility model has following profitable technological effect:
the length value of the adjusting rod in the sleeve is changed, the using position of the projector body in the vertical direction is changed, so that the position of the projector body is flexibly adjusted, and the positioning rod is inserted into the sleeve and the adjusting rod, so that flexible positioning is facilitated; in the space that blocks that uncovered shell and baffle are constituteed, what play of projecting apparatus body when not using accomodates and deposits to shelter from the dust, and then neatly deposit, through starting driving motor, driving motor drives drive gear and rotates, and drive gear and rack toothing drive the projecting apparatus body and remove at the horizontal direction, and when the projecting apparatus body shifted out by uncovered shell in the horizontal direction, carry out clockwise promotion rotation to the baffle, use in order to remove out.
Drawings
Fig. 1 is the utility model provides a projection arrangement for economic management teaching's structural schematic.
Fig. 2 is the utility model provides a projection arrangement is used in economic management teaching looks sideways at sectional structure schematic diagram.
Fig. 3 is the utility model provides a projection arrangement's local split structure schematic diagram is used in economic management teaching.
Fig. 4 is the utility model provides a structural schematic of hollow slab in economic management teaching is with projection arrangement.
Reference numerals: 1. an open shell; 2. a hinge; 3. a baffle plate; 4. a telescopic pipe fitting; 41. a sleeve; 42. adjusting a rod; 5. a positioning member; 51. pulling the block; 52. positioning a rod; 53. a spring; 6. a hollow slab; 7. a projector body; 8. a rack; 9. a drive mechanism; 91. a drive motor; 92. a drive gear; 10. a limiting block; 11. a connecting rod; 12. and a roller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-4, the projection device for economic management teaching provided by the present invention comprises an open shell 1, wherein an opening is formed at one side of the open shell 1, and the opening of the open shell 1 is rotatably connected with a baffle 3 through a hinge 2;
the top of the open shell 1 is provided with a telescopic pipe fitting 4, and the telescopic pipe fitting 4 is provided with a positioning piece 5;
the inside fixed mounting of uncovered shell 1 has hollow core plate 6, and hollow core plate 6 is gone up and is provided with projecting apparatus body 7 along the horizontal direction slip, and the top fixed mounting of projecting apparatus body 7 has rack 8, and the inside fixed mounting of uncovered shell 1 has actuating mechanism 9, and actuating mechanism 9 and rack 8 mesh.
In an alternative embodiment, the telescopic tube 4 is composed of a sleeve 41 and an adjusting rod 42, the top end of the adjusting rod 42 extends into the sleeve 41 and is slidably connected with the sleeve 41, and the bottom end of the adjusting rod 42 is fixedly connected with the top of the open shell 1.
In an optional embodiment, the positioning member 5 is composed of a pulling block 51, a positioning rod 52 and a spring 53, one end of the positioning rod 52 is fixedly connected with the pulling block 51, the other end of the positioning rod 52 extends into the sleeves 41 and the adjusting rod 42 and is respectively connected with the sleeves 41 and the adjusting rod 42 in a sliding manner, the spring 53 is movably sleeved on the positioning rod 52, one end of the spring 53 is fixedly connected with the outer wall of the sleeves 41, the other end of the spring 53 is fixedly connected with the pulling block 51, the pulling block 51 is pulled in the horizontal direction to be away from the sleeves 41 to move, the positioning rod 52 is driven to move out from the inside of the adjusting rod 42, the fixing of the adjusting rod 42 at the vertical position is released, the spring 53 is pulled while the pulling block 51 is away from the sleeves 41, and the stretched spring 53 has resilience, and is favorable for driving the positioning rod 52 to.
In an alternative embodiment, the driving mechanism 9 is composed of a driving motor 91 and a driving gear 92, the driving motor 91 is fixedly installed inside the open casing 1, the driving gear 92 is fixedly sleeved on a driving shaft of the driving motor 91, and the driving gear 92 is meshed with the rack 8.
In an optional embodiment, the inside of hollow plate 6 has seted up the spout along the horizontal direction, and the inside sliding connection of spout has stopper 10, the top fixed mounting of stopper 10 has connecting rod 11, the top of connecting rod 11 pass the spout and with the bottom fixed connection of projecting apparatus body 7 to with the inner wall sliding connection of spout, when projecting apparatus body 7 received drive gear 92 at the horizontal direction removal, connecting rod 11 and stopper 10 horizontal migration in hollow plate 6 spout, played and supported spacing effect.
In an alternative embodiment, a roller 12 is fixedly mounted on one side of the top of the hollow plate 6 close to the baffle 3, and the roller 12 is in rolling connection with the top of the projector body 7, so that when the projector body 7 moves in the horizontal direction, the roller 12 supports the projector body 7, and the position of the projector body 7 in the vertical direction is stable.
In an alternative embodiment, the adjusting rod 42 is provided with a plurality of positioning slots, and the positioning slots are matched with the positioning rods 52, so as to facilitate the adjustment of the position of the adjusting rod 42 in the vertical direction.
In the utility model, the length value of the adjusting rod 42 inside the sleeve 41 is changed, the use position of the projector body 7 in the vertical direction is changed, so as to flexibly adjust the position for installing the projector body 7, and the positioning rod 52 is inserted into the sleeve 41 and the adjusting rod 42, so as to flexibly position; in the space that blocks that uncovered shell 1 and baffle 3 are constituteed, what play of projecting apparatus body 7 when not using accomodates and deposits, shelter from to the dust, and then neatly deposit, through start-up driving motor 91, driving motor 91 drives drive gear 92 and rotates, drive gear 92 and rack 8 mesh, drive projecting apparatus body 7 and remove at the horizontal direction, when projecting apparatus body 7 shifts out by uncovered shell 1 in the horizontal direction, carry out clockwise promotion rotation to baffle 3, use in order to remove out.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. The utility model provides a projection arrangement is used in economic management teaching, includes open shell (1), its characterized in that: an opening is formed in one side of the open shell (1), and the opening of the open shell (1) is rotatably connected with a baffle (3) through a hinge (2);
the top of the open shell (1) is provided with a telescopic pipe fitting (4), and the telescopic pipe fitting (4) is provided with a positioning piece (5);
the inside fixed mounting of uncovered shell (1) has hollow slab (6), it is provided with projecting apparatus body (7) to slide along the horizontal direction on hollow slab (6), the top fixed mounting of projecting apparatus body (7) has rack (8), the inside fixed mounting of uncovered shell (1) has actuating mechanism (9), and actuating mechanism (9) and rack (8) meshing.
2. The projection device for economic management teaching according to claim 1, wherein: the telescopic pipe fitting (4) is composed of a sleeve (41) and an adjusting rod (42), the top end of the adjusting rod (42) extends into the sleeve (41) and is in sliding connection with the sleeve (41), and the bottom end of the adjusting rod (42) is fixedly connected with the top of the open shell (1).
3. The projection device for economic management teaching according to claim 2, wherein: the locating piece (5) comprises pull block (51), locating lever (52) and spring (53), the one end and the pull block (51) fixed connection of locating lever (52), the other end of locating lever (52) stretches into the inside of sleeve pipe (41) and regulation pole (42) to respectively with sleeve pipe (41) and regulation pole (42) sliding connection, spring (53) activity cup joints on locating lever (52), the one end and the outer wall fixed connection of sleeve pipe (41) of spring (53), the other end and the pull block (51) fixed connection of spring (53).
4. The projection device for economic management teaching according to claim 1, wherein: the driving mechanism (9) is composed of a driving motor (91) and a driving gear (92), the driving motor (91) is fixedly installed inside the open shell (1), the driving gear (92) is fixedly sleeved on a driving shaft of the driving motor (91), and the driving gear (92) is meshed with the rack (8).
5. The projection device for economic management teaching according to claim 1, wherein: the inside of hollow core plate (6) has seted up the spout along the horizontal direction, and the inside sliding connection of spout has stopper (10), the top fixed mounting of stopper (10) has connecting rod (11), the top of connecting rod (11) pass the spout and with the bottom fixed connection of projecting apparatus body (7) to with the inner wall sliding connection of spout.
6. The projection device for economic management teaching according to claim 1, wherein: one side of the top of the hollow plate (6) close to the baffle (3) is fixedly provided with a roller (12), and the roller (12) is connected with the top of the projector body (7) in a rolling manner.
7. The projection device for economic management teaching according to claim 3, wherein: the adjusting rod (42) is provided with a plurality of positioning grooves, and the positioning grooves are matched with the positioning rods (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020924142.8U CN212009889U (en) | 2020-05-27 | 2020-05-27 | Projection arrangement is used in economic management teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020924142.8U CN212009889U (en) | 2020-05-27 | 2020-05-27 | Projection arrangement is used in economic management teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212009889U true CN212009889U (en) | 2020-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020924142.8U Expired - Fee Related CN212009889U (en) | 2020-05-27 | 2020-05-27 | Projection arrangement is used in economic management teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212009889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112466234A (en) * | 2020-12-08 | 2021-03-09 | 大连交通大学 | Environment artistic finished product projection display device capable of achieving multi-directional display |
-
2020
- 2020-05-27 CN CN202020924142.8U patent/CN212009889U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112466234A (en) * | 2020-12-08 | 2021-03-09 | 大连交通大学 | Environment artistic finished product projection display device capable of achieving multi-directional display |
| CN112466234B (en) * | 2020-12-08 | 2022-07-26 | 大连交通大学 | Environment artistic finished product projection display device capable of achieving multi-directional display |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201124 |