CN210662076U - Novel be convenient for fine arts teaching of installation is with courseware projection device - Google Patents

Abstract

The utility model discloses a novel courseware projection for art teaching convenient to installation device, including projection host computer and projecting lens, projecting lens installs inside projection host computer's front end outer wall, angle modulation reinforcing apparatus who has a vertical connection through increasing between front side subtend at this projection device's top fixed plate and bottom fixed plate, the mode that angle modulation was carried out through angle modulation knob before also making whole projection device abandons simultaneously, realize through this neotype angle modulation reinforcing apparatus whole projection device when carrying out angle modulation, and carry out angle modulation to projection host computer through this neotype angle modulation reinforcing apparatus and can make the use angle that projection host computer adjusted more accurate, also can make projection host computer angle after adjusting through angle modulation reinforcing apparatus simultaneously and locked, prevent to receive projection host computer self weight influence and use long influence and cause the problem that projection host computer angle produced the deflection to go out Now.

Description

Novel be convenient for fine arts teaching of installation is with courseware projection device

Technical Field

The utility model belongs to the technical field of the projecting apparatus is relevant, concretely relates to novel be convenient for fine arts teaching of installation is with courseware projection device.

Background

The projector, also known as a projector, is a device capable of projecting images or videos onto a curtain, can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV and the like through different interfaces to play corresponding video signals, is widely applied to families, offices, schools and entertainment places at present, has different types such as CRT, LCD, DLP and the like according to different working modes, is generally positioned in schools and enterprises to be applied, adopts mainstream resolution, has brightness of about 2000 lumens and moderate weight, has better heat dissipation and dust prevention performance, is suitable for installation and short-distance movement, has rich functional interfaces, is easy to maintain, has relatively higher cost performance, and is suitable for large-batch purchasing, popularization and use.

The existing courseware projection device technology for art teaching has the following problems: present fine arts teaching is with courseware projection device need be on the image projection curtain after the installation, and receive the mounted position image so need adjust the projection angle after projection device installs, and traditional projection arrangement all adjusts through the angle knob when carrying out the angle modulation, this kind of angle modulation then makes projection arrangement's angle modulation the deviation appear easily, and also can make projection host's use angle relatively poor after adjusting, and receive projection host self weight influence and live time influence also can cause the projection host to produce the inclined to one side cunning by the use angle after fixing easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel courseware projection arrangement for fine arts teaching convenient to installation to solve traditional projection arrangement who provides in the above-mentioned background art and all adjust through angle knob when carrying out angle modulation, this kind of angle modulation then makes projection arrangement's angle modulation deviation appear easily, and also can make projection host's use angle the relatively poor problem of accuracy after adjusting.

In order to achieve the above object, the utility model provides a following technical scheme: a novel courseware projection device convenient to install for art teaching comprises a projection host and a projection lens, wherein the projection lens is installed inside the outer wall of the front end of the projection host, a top plate is arranged inside the perimeter of the outer wall of the upper end of the projection host, the top plate is fixedly connected with the projection host through a nut, a connecting plate is arranged on the outer wall of the upper end of the top plate, the connecting plate is fixedly connected with the top plate through welding, a bottom fixing plate is connected to the upper end of the connecting plate, the bottom fixing plate is fixedly connected with the connecting plate through a nut, a rotary connecting shaft is connected to the outer wall of the upper end of the rear side of the bottom fixing plate, an installation pillar is connected to the upper end of the rotary connecting shaft, a top fixing plate is connected to the upper end of the installation pillar, an angle adjusting and reinforcing device is connected to the inner wall of the, go up angle pole and lower angle pole to all being provided with the regulation screw of opening subtend inside, two the circumference internal connection who adjusts the screw has adjusting screw, the operation cover has been cup jointed on the circumference outer wall of adjusting screw center department, go up angle pole and lower angle pole outermost end and all be provided with connecting splint, two all be connected with swivelling joint piece on the connecting splint, connecting splint and swivelling joint piece are through connecting fixed axle fixed connection, two swivelling joint piece all connects respectively on the lower extreme outer wall of top fixed plate and on the upper end outer wall of bottom fixed plate through the welding.

Preferably, inside status indicator lamp and the infrared receiving head of being provided with respectively of the projection host computer front end outer wall of the projection camera lens left and right sides, the inside master switch that is provided with of the left projection host computer front end outer wall of status indicator lamp, inside and the projection host computer of the projection host computer front end outer wall on infrared receiving head right side all is provided with the heat dissipation strip hole, infrared receiving head, status indicator lamp, projection camera lens and projection host computer all are through external power source electric connection.

Preferably, the three status indicator lamps are provided, the three status indicator lamps are respectively red, yellow and green, and the three status indicator lamps respectively represent the power-on state, the working state and the fault state of the projection host.

Preferably, the shape, size and structural composition of the upper angle rod and the lower angle rod are the same, and the circle centers of the upper angle rod and the lower angle rod are vertically overlapped.

Preferably, the maximum adjusting angle of the projection host when adjusted by the angle adjusting and reinforcing device is less than 60 degrees.

Preferably, the bottom fixing plate and the top fixing plate are identical in shape, size and structure, the cross section of the heat dissipation bar hole is rectangular, and the vertical length of the heat dissipation bar hole is two thirds of the vertical height of the projection host.

Compared with the prior art, the utility model provides a novel be convenient for fine arts teaching of installation is with courseware projection device possesses following beneficial effect:

1. the utility model adds a vertically connected angle adjusting and reinforcing device between the front side opposite direction of the top fixing plate and the bottom fixing plate of the courseware projecting device for art teaching, and improves the bottom of the traditional mounting pillar for connecting and supporting the projecting host machine into a rotatable type, thereby leading the whole projecting device to abandon the prior angle adjusting mode through an angle adjusting knob, realizing the angle adjusting and reinforcing device when the whole projecting device is adjusted, leading the use angle of the projecting host machine to be more accurate by adjusting the angle of the projecting host machine through the novel angle adjusting and reinforcing device, simultaneously leading the angle of the projecting host machine to be locked after the angle is adjusted through the angle adjusting and reinforcing device, preventing the problem that the angle of the projecting host machine is deflected due to the influence of the self weight of the projecting host machine and the influence of the use duration, therefore, the whole projection host can be more stable and cannot shake when in use;

2. the specific application mode and principle of the novel angle adjustment and reinforcement device are as follows, when the projection host is fixedly installed through the top fixing plate, the projection angle of the projection host needs to be adjusted through the novel angle adjustment and reinforcement device, at the moment, the operation sleeve only needs to be grasped by hands and the adjustment screw rod is driven to rotate clockwise, because the two ends of the adjustment screw rod are respectively connected in the adjustment screw holes inside the upper angle rod and the lower angle rod, the outermost ends of the upper angle rod and the lower angle rod are respectively and fixedly connected with the top fixing plate and the bottom fixing plate through the rotating sheet, the two rotating connecting sheets are respectively connected with the upper angle rod and the lower angle rod through the connecting rotating shaft, so that the upper angle rod and the lower angle rod can both rotate at a certain angle, and the two ends of the clockwise rotating adjustment screw rod respectively push the upper angle rod and the lower angle rod upwards through the screw action inside the two adjustment screw holes, and the upper angle pole and the lower angle pole that upwards promote downwards then can promote the projection host computer front end rotation downwards, and if only need anticlockwise drive adjusting screw rotatory through the operation cover during the rotatory projection host computer of upwards, just so can make the projection host computer upwards adjust the use angle, again because the projection host computer passes through the screw pushing effect through rotatory adjusting screw and realizes angle modulation, and the screw steadily impels and just can make the projection host computer carry out angle modulation through angle modulation reinforcing apparatus and can be more accurate, also can give firmly locking the angle of regulation and can not appear rocking and the circumstances such as slide partially, thereby reach the purpose of carrying out the accurate regulation and consolidating the locking to the use angle of projection host computer.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic view of an external three-dimensional structure of a novel easy-to-install courseware projection device for art teaching of the present invention;

fig. 2 is a schematic left-view plane structure diagram of a novel easy-to-install courseware projection device for art teaching provided by the utility model;

fig. 3 is a schematic structural view of the angle adjusting and reinforcing device provided by the present invention;

in the figure: 1. a projection host; 2. a heat dissipating bar hole; 3. an infrared receiving head; 4. a projection lens; 5. a top plate; 6. a status indicator light; 7. a master switch; 8. a connecting plate; 9. a bottom fixing plate; 10. rotating the connecting shaft; 11. mounting a support column; 12. an angle adjusting and reinforcing device; 13. a top fixing plate; 14. rotating the connecting piece; 15. connecting the clamping plates; 16. an upper angle lever; 17. adjusting the screw hole; 18. adjusting the screw rod; 19. an operating sleeve; 20. a lower angle lever; 21. and a fixed shaft is connected.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a novel courseware projection device convenient to install for art teaching comprises a projection host 1 and a projection lens 4, wherein the projection lens 4 is installed inside the outer wall of the front end of the projection host 1, the outer walls of the front end of the projection host 1 on the left side and the right side of the projection lens 4 are respectively provided with a status indicator lamp 6 and an infrared receiving head 3, the status indicator lamps 6 are three, the three status indicator lamps 6 are respectively red, yellow and green, the three status indicator lamps 6 respectively represent the power-on status, the working status and the fault status of the projection host 1, the working status of the whole projection host 1 can be rapidly and accurately judged by a user through the three status indicator lamps 6 with different colors, so that the projection host 1 can react through the status indicator lamps 6 when a fault occurs, thereby reminding the user to maintain as fast as possible, a main switch 7 is arranged inside the outer wall of the front end of the projection host 1 on the left side of the status indicator lamps 6, the inner part of the outer wall of the front end of a projection host 1 on the right side of an infrared receiving head 3 and the inner parts of the outer walls of the left end and the right end of the projection host 1 are respectively provided with a radiating strip hole 2, the infrared receiving head 3, a state indicator lamp 6, a projection lens 4 and the projection host 1 are electrically connected through an external power supply, three liquid crystal boards are arranged in the projection host 1, liquid crystal bodies are distributed in the liquid crystal boards, the liquid crystal bodies are substances between liquid and solid, do not emit light and are arranged regularly like pixels on a screen, the projection host 1 utilizes the photoelectric effect of liquid crystal, namely the arrangement of liquid crystal molecules and the state of the liquid crystal molecules change under the action of an electric field to influence the light transmittance or the reflectivity of liquid crystal units, thereby realizing that colorful images consistent with source images are projected on the screen, a top plate 5 is arranged in the outer wall of the upper end of the, the top plate 5 is fixedly connected with the projection host 1 through a nut, a connecting plate 8 is arranged on the outer wall of the upper end of the top plate 5, the connecting plate 8 is fixedly connected with the top plate 5 through welding, a bottom fixing plate 9 is connected with the upper end of the connecting plate 8, the bottom fixing plate 9 is fixedly connected with the connecting plate 8 through the nut, the shape, size and structure of the bottom fixing plate 9 are identical to those of the top fixing plate 13, the cross section of the radiating strip hole 2 is rectangular, the vertical length of the radiating strip hole 2 is two thirds of the vertical height of the projection host 1, so that heat generated inside the projection host 1 after working can be quickly dissipated through the radiating strip hole 2, the normal work of the whole projection host 1 is ensured, meanwhile, the protecting function of all levels of element instruments inside the projection host 1 cannot be influenced by the limitation of the vertical length of the radiating strip hole 2, and a rotary connecting shaft 10 is connected, the upper end of swivelling joint axle 10 is connected with installation pillar 11, the upper end of installation pillar 11 is connected with top fixed plate 13, top fixed plate 13 is connected with angle modulation reinforcing apparatus 12 on leaning on the front side to the inner wall with bottom fixed plate 9, the biggest angle of regulation when projection host computer 1 passes through angle modulation reinforcing apparatus 12 and adjusts is less than 60 degrees angles, because whole projection arrangement mainly is the projection operation of formation of image, so the regulation of its upper and lower angle should not be too big, just so can make projection arrangement's use angle can carry out accurate and stable regulation.

A novel courseware projection device convenient to install and used for art teaching, an angle adjusting and reinforcing device 12 is provided with an upper angle rod 16 and a lower angle rod 20, the opposite insides of the upper angle rod 16 and the lower angle rod 20 are respectively provided with an adjusting screw hole 17 with opposite openings, the circumferences of the two adjusting screw holes 17 are internally connected with adjusting screw rods 18, the outer wall of the circumference at the center of each adjusting screw rod 18 is sleeved with an operating sleeve 19, the shapes and the sizes of the upper angle rod 16 and the lower angle rod 20 are the same, the circle centers of the upper angle rod 16 and the lower angle rod 20 are vertically superposed, the two angle rods are kept consistent, the stability of angle adjustment of a projection host 1 can be improved, meanwhile, the projection host 1 cannot easily shake or angle deviation when angle adjustment is carried out, the outermost ends of the upper angle rod 16 and the lower angle rod 20 are respectively provided with a connecting clamp plate 15, and the two connecting plates 15 are both connected with a rotary connecting plate, the connecting clamp plate 15 and the rotary connecting piece 14 are fixedly connected through a connecting and fixing shaft 21, the two rotary connecting pieces 14 are respectively connected on the outer wall of the lower end of the top fixing plate 13 and the outer wall of the upper end of the bottom fixing plate 9 through welding, when the projection host 1 performs angle adjustment through the angle adjusting and reinforcing device 12, only the operation sleeve 19 needs to be grasped by hands and the adjusting screw 18 is driven to rotate clockwise, because the two ends of the adjusting screw 18 are respectively connected in the adjusting screw holes 17 inside the upper angle rod 16 and the lower angle rod 20, the outermost ends of the upper angle rod 16 and the lower angle rod 20 are respectively and fixedly connected with the top fixing plate 13 and the bottom fixing plate 9 through the rotary piece, and the two rotary connecting pieces 14 are respectively connected with the upper angle rod 16 and the lower angle rod 20 through connecting rotary shafts, so that the upper angle rod 16 and the lower angle rod 20 can both rotate at a certain, and the two ends of the clockwise rotating adjusting screw 18 respectively push up the angle rod 16 and the lower angle rod 20 through the screw action inside the two adjusting screw holes 17, and the upward and downward pushing up the angle rod 16 and the lower angle rod 20 can push the front end of the projection host 1 to rotate downwards, and if the projection host 1 rotates upwards, the adjusting screw 18 is driven to rotate only through the operation sleeve 19 anticlockwise, so that the angle of the projection host 1 can be adjusted upwards, and because the projection host 1 realizes the angle adjustment through the screw pushing action by rotating the adjusting screw 18, the screw is stably pushed, so that the projection host 1 can be more accurate after the angle adjustment is carried out through the angle adjustment reinforcing device 12.

The utility model discloses a theory of operation and use flow: the utility model discloses after installing, at first need place roof 5 in the inside preformed hole of projection host 1 upper end outer wall when using, then carry out fixed connection through the nut with projection host 1 roof 5, then bottom fixed plate 9 that installation pillar 11 and angle modulation reinforcing apparatus 12 bottom are connected aligns the connecting plate 8 on roof 5, then bottom fixed plate 9 and connecting plate 8 are fixed through the nut, then through the inflation screw top fixed plate 13 that installation pillar 11 and angle modulation reinforcing apparatus 12 top are connected fixed mounting need the wall body of installation on, at last again for whole projection host 1 to switch on the electricity and use, and there are three liquid crystal boards in projection host 1, liquid crystal is being distributed in the liquid crystal board, the liquid crystal is the material between liquid and solid, self is not luminous, they are neatly arranging like the pixel on the fluorescent screen, the host projection machine 1 utilizes the photoelectric effect of liquid crystal, namely the arrangement of liquid crystal molecules and the state of the liquid crystal molecules change under the action of an electric field to influence the light transmittance or the reflectivity of a liquid crystal unit, the host projection machine 1 utilizes the principle to achieve the purpose of accurately controlling the light passing through the liquid crystal unit by utilizing electric signals, a light source in the liquid crystal projector is a metal halogen lamp or UHP (cold light source), bright white light is emitted, the white light is decomposed into light with three element colors of RGB (red, green and blue) through a spectroscope in an optical path system, the light with the three element colors of RGB passes through the liquid crystal body at an accurate position, at the moment, the function of each liquid crystal body is similar to a light valve, whether the light passes through each liquid crystal body and the quantity of the light passing through the light are controlled, and the light with the three element colors is accurately projected on a screen through a projection lens 4 on the host projection machine 1, what color and light intensity are distributed is good and positive, so that a colorful image consistent with the source image is formed by projection on the screen.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (1)

1. The utility model provides a novel courseware projection for fine arts teaching convenient to installation device, includes projection host computer (1), heat dissipation strip hole (2) and projection lens (4), its characterized in that: projection lens (4) are installed inside the front end outer wall of projection host (1), inside roof (5) of being provided with of upper end outer wall girth of projection host (1), roof (5) and projection host (1) pass through nut fixed connection, be provided with connecting plate (8) on the upper end outer wall of roof (5), connecting plate (8) and roof (5) are through welded fastening connection, connecting plate (8) upper end is connected with bottom fixed plate (9), bottom fixed plate (9) and connecting plate (8) pass through nut fixed connection, bottom fixed plate (9) are connected with swivelling joint axle (10) on leaning on rear side upper end outer wall, the upper end of swivelling joint axle (10) is connected with erection column (11), the upper end of erection column (11) is connected with top fixed plate (13), top fixed plate (13) and bottom fixed plate (9) are connected with angle adjustment reinforcing apparatus (3) on leaning on the front side subtend inner wall with angle adjustment reinforcing apparatus (s 12) An upper angle rod (16) and a lower angle rod (20) are arranged on the angle adjusting and reinforcing device (12), the opposite insides of the upper angle rod (16) and the lower angle rod (20) are respectively provided with an adjusting screw hole (17) with opposite openings, the circumference inside of the two adjusting screw holes (17) is connected with an adjusting screw rod (18), the outer wall of the circumference at the center of the adjusting screw rod (18) is sleeved with an operating sleeve (19), the outermost ends of the upper angle rod (16) and the lower angle rod (20) are respectively provided with a connecting clamping plate (15), the two connecting clamping plates (15) are respectively connected with a rotary connecting sheet (14), the connecting clamping plates (15) and the rotary connecting sheets (14) are fixedly connected through connecting and fixing shafts (21), and the two rotary connecting sheets (14) are respectively connected on the outer wall of the lower end of the top fixing plate (13) and the outer wall of the upper end of the bottom fixing plate, the projector is characterized in that a state indicator lamp (6) and an infrared receiving head (3) are arranged inside the outer wall of the front end of a projector (1) on the left side of a projection lens (4) respectively, a master switch (7) is arranged inside the outer wall of the front end of the projector (1) on the left side of the state indicator lamp (6), radiating strip holes (2) are arranged inside the outer wall of the front end of the projector (1) on the right side of the infrared receiving head (3) and inside the outer wall of the left end and the outer wall of the right end of the projector (1), the infrared receiving head (3), the state indicator lamp (6), the projection lens (4) and the projector (1) are all electrically connected through an external power supply, the state indicator lamp (6) is three, the color of the state indicator lamp (6) is red, yellow and green respectively, and the state indicator lamp (6) respectively represents the power-on state of, Working condition and fault condition, it is the same with the structure composition homogeneous phase to go up the shape size of angle pole (16) and lower angle pole (20), go up the vertical coincidence of the centre of a circle of angle pole (16) and lower angle pole (20), the biggest angle of regulation when projection host computer (1) is adjusted through angle modulation reinforcing apparatus (12) is less than 60 degrees angles, the shape size and the structure composition homogeneous phase of bottom fixed plate (9) and top fixed plate (13) are the same, the cross sectional shape of heat dissipation strip hole (2) is the rectangle, the vertical length in heat dissipation strip hole (2) is two-thirds of projection host computer (1) vertical height.

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