CN221303803U

CN221303803U - Classroom education projector

Info

Publication number: CN221303803U
Application number: CN202322578426.2U
Authority: CN
Inventors: 王洪林
Original assignee: Shandong Pengrun Information Technology Co ltd
Current assignee: Shandong Pengrun Information Technology Co ltd
Priority date: 2023-09-22
Filing date: 2023-09-22
Publication date: 2024-07-09
Anticipated expiration: 2033-09-22

Abstract

The utility model discloses a classroom education projector, which belongs to the field of projectors and comprises a projector main body, wherein a protective box is fixedly connected to the outer surface of the projector main body, a driving motor is fixedly connected to the inner bottom wall of the protective box, a driving gear is fixedly connected to the output end of the driving motor, a U-shaped sliding rail is fixedly connected to the front surface of the protective box, a dust-proof plate is slidingly connected to the inner part of the U-shaped sliding rail, and the screw rod is driven to move up and down when being rotated through the cooperation of a square through hole, the U-shaped sliding rail, the dust-proof plate, the screw plate and an L-shaped connecting rod, so that the L-shaped connecting rod and the dust-proof plate can be driven to move by the movement of the screw plate, the sealing effect is achieved when the projector main body is not used, dust is prevented from entering the protective box from the square through hole and attaching to a projector lens, the condition that the projector main body can have image blurring when a picture is projected is avoided, and the definition of the projector main body when in use is ensured.

Description

Classroom education projector

Technical Field

The utility model relates to the field of projectors, in particular to a classroom education projector.

Background

The projector is a device capable of projecting images or videos onto a curtain, and can be connected with a computer or the like through different interfaces, the projector is widely applied to families, offices and schools, the education projector is mainly used for classroom teaching of school teachers, the classroom education projector is a technical tool commonly used in an education environment, and the teaching content of teachers or lectures can be projected onto a screen or a whiteboard in the form of images or videos so that students can better understand and participate in classroom teaching.

The utility model discloses an integrated education projector that conveniently carries of chinese patent with publication No. CN206892538U, its structure includes control panel, focusing circle, projection lens, infrared sensor, portable power source, heat dissipation air outlet, lower margin, base, power button, casing, display screen, operation key, infrared sensor by window, lens, PIR thermoelectric element, supporting ring, circuit element, pin, FET pipe, shell constitute, be equipped with portable power source on the casing and can carry out the mobile power supply to the projector, and need not the power cord, be equipped with infrared sensor and utilize lens and PIR thermoelectric element to adjust the luminance of projection lens according to ambient brightness automatically, effectively reduce the use of power, provide portable power source endurance, but the projector lens in above-mentioned patent lacks the safeguard measure when not using, can cause dirty such as dust to fall on the lens, influence the next use of projector, the condition that appears the picture blurring when leading to the projector to throw, there is the problem that dustproof effect is relatively poor, therefore, technical staff in this field provides a classroom education projector, with the problem that proposes in the above-mentioned background technology.

Disclosure of utility model

The utility model aims to provide a classroom education projector which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a classroom education projecting apparatus, includes the projecting apparatus main part, the surface fixedly connected with protective housing of projecting apparatus main part, the interior bottom wall fixedly connected with driving motor of protective housing, driving motor's output fixedly connected with driving gear, the positive fixedly connected with U-shaped slide rail of protective housing, the inside sliding connection of U-shaped slide rail has the dust guard, square opening has been seted up in the front of protective housing, the interior roof of protective housing and the interior bottom wall of protective housing are all fixed to be inlayed with the bearing, two the inner circle fixedly connected with screw mandrel jointly of bearing, screw mandrel's surface fixedly connected with driven gear, screw mandrel's surface threaded connection has the screw plate, the surface fixedly connected with L shape connecting rod of screw plate, the one end and the back fixedly connected with of dust guard of screw plate are kept away from to L shape connecting rod, the front of projecting apparatus main part is equipped with the projecting apparatus camera lens.

As still further aspects of the utility model: the size of square opening and the big or small looks adaptation of dust guard, the back fixedly connected with sealed pad of dust guard.

As still further aspects of the utility model: the left side face of the projector main body is fixedly provided with a control button, and the driving motor is electrically connected with the control button through a wire.

As still further aspects of the utility model: the back of projector main part is equipped with two wiring plugs, a plurality of thermovent has been seted up to the front of projector main part.

As still further aspects of the utility model: the inner wall fixedly connected with circular slide bar of protective housing, the surface sliding connection of circular slide bar has the slip ring, the surface fixedly connected with long inclined rod of slip ring, the one end that the slip ring was kept away from to long inclined rod is fixedly connected with the back of dust guard.

As still further aspects of the utility model: the bottom surface of projector main part fixedly connected with four support protruding.

As still further aspects of the utility model: the driven gear is meshed with the driving gear, and the size of the driven gear is matched with that of the driving gear.

Compared with the prior art, the utility model has the beneficial effects that:

This classroom education projecting apparatus uses through square opening, U-shaped slide rail, dust guard, thread board and L shape connecting rod's cooperation, drives the thread board when making the screw mandrel rotatory and reciprocates, can utilize the removal of thread board to drive L shape connecting rod and dust guard and remove, thereby can utilize the dust guard to play sealed effect when not using the projecting apparatus main part, prevent that the dust from getting into the protection box from square opening and can adhere to on the projecting apparatus camera lens, the condition that the projecting apparatus main part can appear the image blurring when projecting the picture has been avoided, the definition of projecting apparatus main part when using has been guaranteed, have the better advantage of dustproof effect, the life of projecting apparatus main part has been improved.

Drawings

FIG. 1 is a schematic perspective view of a classroom education projector;

FIG. 2 is a schematic side view of a classroom education projector;

FIG. 3 is a schematic side sectional view of a protective housing in a classroom education projector;

FIG. 4 is a schematic diagram of a schematic top-down construction of a protective housing in a classroom education projector;

fig. 5 is a schematic diagram showing an internal structure of a protective case in a classroom education projector.

In the figure: 1. a projector main body; 2. a protective box; 3. square through openings; 4. a U-shaped slide rail; 5. a dust-proof plate; 6. a wiring plug; 7. a supporting protrusion; 8. a control button; 9. a heat radiation port; 10. a driving motor; 11. a drive gear; 12. a bearing; 13. a threaded screw rod; 14. a driven gear; 15. a thread plate; 16. an L-shaped connecting rod; 17. a projector lens; 18. a circular slide bar; 19. a slip ring; 20. a long diagonal rod.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

Referring to fig. 1-5, in an embodiment of the present utility model, a classroom education projector includes a projector main body 1, an outer surface of the projector main body 1 is fixedly connected with a protection box 2, an inner bottom wall of the protection box 2 is fixedly connected with a driving motor 10, an output end of the driving motor 10 is fixedly connected with a driving gear 11, a front surface of the protection box 2 is fixedly connected with a U-shaped slide rail 4,U, a dust-proof plate 5 is slidingly connected with an inner portion of the U-shaped slide rail 4, a square through opening 3 is formed in the front surface of the protection box 2, bearings 12 are fixedly embedded in an inner top wall of the protection box 2 and an inner bottom wall of the protection box 2, a threaded screw 13 is fixedly connected with inner rings of the two bearings 12 together, an outer surface of the threaded screw 13 is fixedly connected with a driven gear 14, an outer surface of the threaded screw 13 is in threaded connection with a threaded plate 15, an outer surface of the threaded plate 15 is fixedly connected with an L-shaped connecting rod 16, one end of the L-shaped connecting rod 16, which is far away from the threaded plate 15, is fixedly connected with a back surface of the dust-proof plate 5, and a projector lens 17 is arranged on the front surface of the projector main body 1.

The size of square opening 3 and the big or small looks adaptation of dust guard 5, the back fixedly connected with pad of dust guard 5 makes dust guard 5 cover square opening 3 completely, guaranteed that dust guard 5 can play corresponding sealed effect, projector main part 1's left surface fixed mounting has control button 8, driving motor 10 passes through the wire and is connected with control button 8 electricity, user operation this equipment has been made things convenient for, the advantage that the operation is simpler, projector main part 1's the back is equipped with two wiring plugs 6, a plurality of thermovent 9 has been seted up in projector main part 1's front, projector main part 1 radiating effect is better when using, projector main part 1 can normal operating projection has been guaranteed.

The inner wall fixedly connected with circular slide bar 18 of protective housing 2, the surface sliding connection of circular slide bar 18 has slip ring 19, the surface fixed connection of slip ring 19 has long diagonal bar 20, the one end that slip ring 19 was kept away from to long diagonal bar 20 and the back fixed connection of dust guard 5, drive long diagonal bar 20 and slip ring 19 and slide on circular slide bar 18 when adjusting the position of dust guard 5, improve the stability that dust guard 5 removed, the bottom surface fixedly connected with of projector main part 1 supports protruding 7, make supporting protruding 7 play the supporting effect, avoid projector main part 1 to bump, driven gear 14 meshes with driving gear 11, driven gear 14's size and driving gear 11's size phase-match, guaranteed that driving gear 11 can drive driven gear 14 and rotate, make this equipment practicality higher when using.

The working principle of the utility model is as follows: when the projector main body 1 is not used for projection, the driving motor 10 is started to drive the driving gear 11 to rotate, the driven gear 14 and the threaded screw rod 13 are driven to rotate when the driving gear 11 rotates, the threaded screw rod 13 is driven to drive the threaded plate 15 and the L-shaped connecting rod 16 to move downwards when the threaded screw rod 13 rotates, the L-shaped connecting rod 16 moves and drives the dust-proof plate 5 to slide downwards in the U-shaped sliding rail 4, the dust-proof plate 5 moves to a position for completely covering the square through hole 3, dust can be prevented from entering the protective box 2 from the square through hole 3, and the dust-proof plate 5 plays a sealing role to prevent the dust from adhering to the surface of the projector lens 17.

While the utility model has been described with reference to the preferred embodiments, it will be apparent to those skilled in the art that the utility model is not limited to the details of the exemplary embodiments and that the utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof, as long as the scope of the utility model is defined by the claims and its spirit and scope. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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 disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a classroom education projector, includes projector main part (1), its characterized in that, the surface mounting of projector main part (1) is connected with protective housing (2), the interior bottom wall fixedly connected with driving motor (10) of protective housing (2), the output fixedly connected with driving gear (11) of driving motor (10), the front fixedly connected with U-shaped slide rail (4) of protective housing (2), the inside sliding connection of U-shaped slide rail (4) has dust guard (5), square opening (3) have been seted up in the front of protective housing (2), the size of square opening (3) and the big or small adaptation of dust guard (5), the back fixedly connected with sealing washer of dust guard (5), the interior roof of protective housing (2) and the interior bottom wall of protective housing (2) are all fixedly inlayed and are had bearing (12), two the inner circle fixedly connected with screw thread lead screw (13) jointly, the surface fixedly connected with driven gear (14) of screw lead screw (13), driven gear (14) and driven gear (11) and driven gear (14) big or small thread (15) are engaged with each other, driven gear (11) big or small thread (13), the outer surface fixedly connected with L shape connecting rod (16) of screw board (15), the one end that screw board (15) was kept away from to L shape connecting rod (16) is fixedly connected with the back of dust guard (5), the front of projecting apparatus main part (1) is equipped with projecting apparatus camera lens (17).

2. The classroom education projector according to claim 1, wherein the bottom surface of the projector body (1) is fixedly connected with four supporting protrusions (7).

3. The classroom education projector according to claim 1, wherein the left side of the projector main body (1) is fixedly provided with a control button (8), and the driving motor (10) is electrically connected with the control button (8) through a wire.

4. The classroom education projector according to claim 1, wherein the rear surface of the projector body (1) is provided with two connection plugs (6), and the front surface of the projector body (1) is provided with a plurality of heat dissipation ports (9).

5. The classroom education projector according to claim 1, wherein the inner wall of the protective box (2) is fixedly connected with a circular sliding rod (18), the outer surface of the circular sliding rod (18) is slidably connected with a sliding ring (19), the outer surface of the sliding ring (19) is fixedly connected with a long inclined rod (20), and one end of the long inclined rod (20) far away from the sliding ring (19) is fixedly connected with the back of the dust guard (5).