CN211928774U - Projecting apparatus is used in teaching of dustproof effectual - Google Patents

Abstract

The utility model discloses a projecting apparatus is used in teaching of dustproof effectual, including projecting apparatus body and the shielding frame of setting on the projecting apparatus body, four corners at shielding frame back and the top and the equal fixedly connected with connecting cylinder in bottom that are located the projecting apparatus body, the left and right sides at projecting apparatus body back all is provided with the fixed plate, and passes through stock bolt fixed connection between fixed plate and the connecting cylinder, the top fixedly connected with install bin at shielding frame back, the bottom of install bin inner chamber is rotated and is connected with the gear, the utility model relates to a projecting apparatus technical field. This projecting apparatus is used in teaching that dustproof effect is good utilizes connecting cylinder, stock bolt and fixed plate to fix the shielding frame on the projecting apparatus body, and simple to operate utilizes the motor to drive the gear and rotates for the dentate plate drives the shielding plate and removes, realizes through the positive and negative rotation of motor that the shielding plate shelters from and spills the camera lens of projecting apparatus body, and dustproof effectual, convenient to use.

Description

Projecting apparatus is used in teaching of dustproof effectual

Technical Field

The utility model relates to a projecting apparatus technical field specifically is a projecting apparatus is used in teaching of dustproof effectual.

Background

The projector is a device which can project images or videos onto a curtain, can be connected with a computer, a VCD, a DVD, 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, and has the basic principle that the appearance and the contour of a workpiece are enlarged by using an optical element and then projected onto the screen. It can be used for profile measurement by transmitted light, and also can be used for measuring the surface shape of a blind hole by reflected light. Besides being used for viewing, projectors are also often used for measurement of complex contours and small workpieces.

To projecting apparatus for teaching, often just hang on the wall in the classroom through the support, long-time suspension sets up, leads to the lens surface to be infected with easily and gathers the dust, influences the projection effect to the hanging position is higher relatively, cleans comparatively troublesome, provides a projecting apparatus for teaching that dustproof effectual for this purpose very much.

Disclosure of Invention

The not enough to prior art, the utility model provides a projecting apparatus is used in teaching that dustproof effectual has solved long-time setting of hanging, leads to the camera lens surface to be infected with easily and gathers the dust, influences the projection effect to it is relatively higher to hang the position, cleans comparatively troublesome problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a projecting apparatus is used in teaching that dustproof effectual, includes the projecting apparatus body and sets up the shielding frame on the projecting apparatus body, four corners at shielding frame back and the top that is located the projecting apparatus body and the equal fixedly connected with connecting cylinder in bottom, the left and right sides at projecting apparatus body back all is provided with the fixed plate, and passes through stock bolt fixed connection between fixed plate and the connecting cylinder, the top fixedly connected with install bin at shielding frame back, the bottom of install bin inner chamber is rotated and is connected with the gear, the top fixed mounting of install bin has the motor, and the one end of motor output shaft run through the install bin and with the top fixed connection of gear, the spout has been seted up on the right side of shielding frame, and the internal surface sliding connection of spout has the shielding plate, the top fixedly connected with at shielding plate back and the tooth shaped plate of gear looks adaptation.

Preferably, one side of the shielding plate close to the projector body is provided with a mounting groove, and a spongy cushion is adhered to the inner surface of the mounting groove.

Preferably, one side of the fixing plate is provided with a clamping groove, and a rubber pad is fixedly connected to the inner surface of the clamping groove.

Preferably, the top and the bottom of the front surface of the fixing plate are both provided with through holes matched with the long rod bolts, and the inside of the connecting cylinder is provided with thread grooves matched with the long rod bolts. .

Preferably, the surface of the connecting cylinder arranged on the right side of the top of the projector body is provided with a groove matched with the tooth-shaped plate, and the inside of the installation box is provided with a moving groove matched with the tooth-shaped plate.

Preferably, the shielding frame is arranged on the periphery of the lens of the projector body, and a sealing gasket is fixedly connected to the back of the shielding frame.

Advantageous effects

The utility model provides a dustproof effectual projecting apparatus for teaching. Compared with the prior art, the method has the following beneficial effects:

(1) this projecting apparatus is used in teaching that dustproof effectual fixes the shielding frame on the projecting apparatus body through utilizing connecting cylinder, stock bolt and fixed plate, simple to operate then utilizes the motor to drive the gear and rotate for the dentate plate drives the shielding plate and removes, realizes through the positive and negative rotation of motor that the shielding plate shelters from and spills the camera lens of projecting apparatus body, and dustproof effectual, convenient to use.

(2) This projecting apparatus is used in teaching that dustproof effectual through set up the mounting groove on the shielding plate to at the inside bonding foam-rubber cushion of mounting groove, can realize cleaning projecting apparatus body camera lens at the in-process of shielding plate round trip movement, clear up the dust promptly, the effectual service quality of guaranteeing the projecting apparatus body, and the convenience is changed to the bonding foam-rubber cushion, as long as just can make the long-time effectual operation of stabilizing of device through changing the foam-rubber cushion.

Drawings

Fig. 1 is a schematic external structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the installation box of the present invention;

FIG. 3 is a schematic connection diagram of the connecting cylinder, fixing plate and long rod bolt structure of the present invention;

FIG. 4 is a schematic view of the connection between the gear and the toothed plate structure of the present invention;

FIG. 5 is an enlarged view of a portion of the structure of FIG. 1;

fig. 6 is a partially enlarged view of the point B in fig. 1 according to the present invention.

In the figure: 1. a projector body; 2. a shielding frame; 3. a connecting cylinder; 4. a fixing plate; 5. a long rod bolt; 6. installing a box; 7. a gear; 8. a motor; 9. a chute; 10. a shielding plate; 11. a toothed plate; 12. mounting grooves; 13. a sponge cushion; 14. a card slot; 15. a rubber pad; 16. a through hole; 17. a thread groove; 18. grooving; 19. a sealing gasket; 20. the slot is moved.

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. 1-6, the present invention provides a technical solution: a projector with good dustproof effect for teaching comprises a projector body 1 and a shielding frame 2 arranged on the projector body 1, wherein connecting cylinders 3 are fixedly connected at the four corners of the back of the shielding frame 2 and positioned at the top and the bottom of the projector body 1, fixing plates 4 are arranged at the left side and the right side of the back of the projector body 1, the fixing plates 4 are fixedly connected with the connecting cylinders 3 through long rod bolts 5, through holes 16 matched with the long rod bolts 5 are formed at the top and the bottom of the front of the fixing plates 4, threaded grooves 17 matched with the long rod bolts 5 are formed in the connecting cylinders 3, grooves 18 matched with tooth-shaped plates 11 are formed in the surfaces of the connecting cylinders 3 arranged at the right side of the top of the projector body 1, moving grooves 20 matched with the tooth-shaped plates 11 are formed in the installation box 6, and an installation box 6 is fixedly connected at the top of the back of the shielding frame 2, the bottom of the inner cavity of the installation box 6 is rotatably connected with a gear 7, the top of the installation box 6 is fixedly provided with a motor 8, the motor 8 is a three-phase asynchronous motor and is electrically connected with an external power supply and is controlled by a control switch, one end of an output shaft of the motor 8 penetrates through the installation box 6 and is fixedly connected with the top of the gear 7, the right side of the shielding frame 2 is provided with a chute 9, the inner surface of the chute 9 is slidably connected with a shielding plate 10, the top of the back of the shielding plate 10 is fixedly connected with a toothed plate 11 matched with the gear 7, the shielding frame 2 is fixed on the projector body 1 by utilizing the connecting cylinder 3, the long rod bolt 5 and the fixing plate 4, the installation is convenient, then the gear 7 is driven by the motor 8 to rotate, the toothed plate 11 drives the shielding plate 10 to move, the shielding plate 10 shields and leaks out a lens of the projector body 1 by, convenient to use, one side of the shielding plate 10 close to the projector body 1 is provided with a mounting groove 12, the inner surface of the mounting groove 12 is adhered with a sponge pad 13, the shielding plate 10 is provided with the mounting groove 12, the sponge pad 13 is adhered inside the mounting groove 12, the lens of the projector body 1 can be cleaned in the process of moving back and forth of the shielding plate 10, namely, dust is cleaned, the use quality of the projector body 1 is effectively ensured, the adhered sponge pad 13 is convenient to replace, the device can stably and effectively operate for a long time only by replacing the sponge pad 13, one side of the fixed plate 4 is provided with a clamping groove 14, the inner surface of the clamping groove 14 is fixedly connected with a rubber pad 15, the rubber pad 15 can effectively avoid scratching the projector body 1 when the fixed plate 4 is fixed, the shielding frame 2 is arranged at the periphery of the lens of the projector body 1, and the back of the shielding frame 2 is fixedly connected, the sealing effect of the connection between the shadow frame 2 and the projector body 1 is ensured by the sealing gasket 19.

And those not described in detail in this specification are well within the skill of those in the art.

During the use, with four connecting cylinders 3 cards on projecting apparatus body 1, then use stock bolt 5 to fix fixed plate 4 at the back of projecting apparatus body 1, screw up stock bolt 5 and accomplish fixedly, when shielding plate 10 need be opened, control motor 8 corotation, make gear 7 corotation, drive dentate plate 11 and remove right, drive shielding plate 10 and remove right in spout 9 promptly, spill projecting lens of projecting apparatus body 1, in-process, foam-rubber cushion 13 cleans the lens once, after projecting apparatus body 1 work, control motor 8 reversal, make gear 7 reversal, drive dentate plate 11 and remove left, drive shielding plate 10 and remove left in spout 9 promptly, shelter from projecting lens of projecting apparatus body 1, in-process, foam-rubber cushion 13 cleans the lens once more.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 (6)

1. The utility model provides a projecting apparatus is used in teaching that dustproof effectual, includes projecting apparatus body (1) and shielding frame (2) of setting on projecting apparatus body (1), its characterized in that: the four corners of the back of the shielding frame (2) and the top and the bottom of the projector body (1) are fixedly connected with connecting cylinders (3), the left side and the right side of the back of the projector body (1) are both provided with a fixing plate (4), the fixing plate (4) and the connecting cylinder (3) are fixedly connected through a long rod bolt (5), the top of the back of the shielding frame (2) is fixedly connected with an installation box (6), the bottom of the inner cavity of the installation box (6) is rotatably connected with a gear (7), the top of the installation box (6) is fixedly provided with a motor (8), one end of an output shaft of the motor (8) penetrates through the mounting box (6) and is fixedly connected with the top of the gear (7), a sliding groove (9) is formed in the right side of the shielding frame (2), and the inner surface of the sliding groove (9) is connected with a shielding plate (10) in a sliding manner, and the top of the back of the shielding plate (10) is fixedly connected with a toothed plate (11) matched with the gear (7).

2. The projector for teaching of claim 1, which has a good dustproof effect, is characterized in that: one side of the shielding plate (10) close to the projector body (1) is provided with a mounting groove (12), and the inner surface of the mounting groove (12) is bonded with a sponge mat (13).

3. The projector for teaching of claim 1, which has a good dustproof effect, is characterized in that: a clamping groove (14) is formed in one side of the fixing plate (4), and a rubber pad (15) is fixedly connected to the inner surface of the clamping groove (14).

4. The projector for teaching of claim 1, which has a good dustproof effect, is characterized in that: the top and the bottom of the front surface of the fixing plate (4) are both provided with through holes (16) matched with the long rod bolts (5), and thread grooves (17) matched with the long rod bolts (5) are formed in the connecting cylinders (3).

5. The projector for teaching of claim 1, which has a good dustproof effect, is characterized in that: the surface of a connecting cylinder (3) arranged on the right side of the top of the projector body (1) is provided with a groove (18) matched with the toothed plate (11), and the inside of the installation box (6) is provided with a moving groove (20) matched with the toothed plate (11).

6. The projector for teaching of claim 1, which has a good dustproof effect, is characterized in that: the shielding frame (2) is arranged on the periphery of a lens of the projector body (1), and a sealing gasket (19) is fixedly connected to the back of the shielding frame (2).

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