CN210890655U

CN210890655U - Special teaching projecting apparatus of preschool education

Info

Publication number: CN210890655U
Application number: CN201921167124.3U
Authority: CN
Inventors: 蓝嘉如; 刘文敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-06-30
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a special teaching projecting apparatus of preschool education, including fixing base, dust-proof box and projecting apparatus, the bottom welding of fixing base has the dust-proof box, the top of dust-proof box is open type structure, fixing base bottom center department inlays and is equipped with electric putter, and the electric putter bottom runs through the inside that the dust-proof box extends to the dust-proof box, and projecting apparatus top center department bolt fastening has U type seat, and the U type seat rotates through pivot and electric putter's bottom to be connected, peg graft in dust-proof box lateral wall bottom has the closing plate, and the lower surface of closing plate inlays and is equipped with the rack. The utility model discloses in, be provided with the dust-proof box on the fixing base, fix the projecting apparatus in electric putter's bottom, when not using, control electric putter is flexible, can contract the projecting apparatus to the dust-proof incasement portion, then seals the bottom opening of dust-proof box through the closing plate to can prevent dust the anticollision protection to the projecting apparatus.

Description

Special teaching projecting apparatus of preschool education

Technical Field

The utility model relates to a projecting apparatus technical field especially relates to a special teaching projecting apparatus of preschool education.

Background

A projector is an optical instrument that magnifies the contour of a workpiece using an optical element and projects it onto a 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 and observing the surface of a part by reflected light. The projector is particularly suitable for measuring complex contours and small workpieces, such as clock parts, stamping parts, electronic components, templates, dies, threads, gears, forming cutters and the like, has high inspection efficiency and convenient use, is widely applied to measuring rooms and production workshops, is particularly suitable for meeting occasions in the instrument industry and clock industry, is also called a projector, is equipment 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, and has different types such as CRT, LCD, DLP and the like according to different working modes.

The special teaching projecting apparatus of preschool education, the snap-on is in the classroom at present, lacks dustproof and anticollision structure, and the in-process of use, projection lens easily receive dust pollution, and the projecting apparatus lacks protector, and the in-process that the child played easily causes the damage to the projecting apparatus, so can not satisfy user's demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a teaching projector special for preschool education.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a special teaching projecting apparatus of preschool education, includes fixing base, dust-proof box and projecting apparatus, the bottom welding of fixing base has the dust-proof box, the top of dust-proof box is open type structure, fixing base bottom center department inlays and is equipped with electric putter, and the electric putter bottom runs through the inside that the dust-proof box extends to the dust-proof box, and projecting apparatus top center department bolt fastening has U type seat, and U type seat rotates through pivot and electric putter's bottom to be connected, a dust-proof box lateral wall bottom is pegged graft and is had the closing plate, and the lower surface of closing plate inlays and is equipped with the rack, the welding has the fixed plate on the dust-proof box lateral wall, and the bolt fastening has servo motor on the fixed plate, and rotates on servo motor's the output shaft and is connected with the toothed disc to the toothed disc.

Preferably, four corners of the fixing seat are in threaded connection with fixing screws.

Preferably, the dust-proof box is connected with the folding leg in a rotating manner between the top plate in the dust-proof box and the projector, the two folding legs are arranged, and the two folding legs are symmetrical to each other about the electric push rod.

Preferably, a projection lens is embedded in the front surface of the projector.

Preferably, the number of the racks is two, and the two racks are parallel to each other.

Preferably, a strip-shaped hole matched with the sealing plate for use is formed in one side wall of the dust-proof box, and a clamping groove matched with the sealing plate for use is formed in the other side wall of the dust-proof box.

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

1. the utility model discloses in, be provided with the dust-proof box on the fixing base, fix the projecting apparatus in electric putter's bottom, when not using, control electric putter is flexible, can contract the projecting apparatus to the dust-proof incasement portion, then seals the bottom opening of dust-proof box through the closing plate to can prevent dust the anticollision protection to the projecting apparatus.

2. The utility model discloses in, on the basis that electric putter and projecting apparatus are connected, the projecting apparatus is still through the inside roof fixed connection of folding leg and dust-proof box to improved the fixed stability of projecting apparatus, secondly the projecting apparatus passes through U type frame, pivot rotation connection in electric putter's bottom, thereby the projecting apparatus still possesses the effect of angle modulation, can adjust the projection angle of projecting apparatus, improves its result of use.

Drawings

Fig. 1 is a schematic structural view of a teaching projector dedicated for preschool education provided by the present invention;

fig. 2 is an enlarged view of a region a in fig. 1 of a teaching projector special for preschool education provided by the present invention;

fig. 3 is a schematic structural view of a dust-proof box of the teaching projector special for preschool education provided by the utility model;

fig. 4 is the utility model provides a structural schematic of the dust guard of special teaching projecting apparatus of preschool education.

Illustration of the drawings:

1. a fixed seat; 2. an electric push rod; 3. fixing the screw rod; 4. a dust-proof box; 5. a projector; 6. a projection lens; 7. a U-shaped seat; 8. a rotating shaft; 9. a folding frame; 10. a sealing plate; 11. a rack; 12. a gear plate; 13. a servo motor; 14. a fixing plate; 15. strip-shaped holes; 16. an engaging groove.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows: referring to fig. 1-4, a teaching projector special for preschool education comprises a fixed seat 1, a dustproof box 4 and a projector 5, wherein the bottom of the fixed seat 1 is welded with the dustproof box 4, the top of the dustproof box 4 is of an open structure, an electric push rod 2 is embedded in the center of the bottom of the fixed seat 1, the bottom end of the electric push rod 2 penetrates through the dust-proof box 4 and extends into the dust-proof box 4, a U-shaped seat 7 is fixed at the center of the top of the projector 5 through a bolt, the U-shaped seat 7 is rotationally connected with the bottom end of the electric push rod 2 through a rotating shaft 8, a sealing plate 10 is inserted at the bottom of one side wall of the dust-proof box 4, and the lower surface of the sealing plate 10 is embedded with a rack 11, one side wall of the dust-proof box 4 is welded with a fixed plate 14, and a servo motor 13 is fixed on the fixing plate 14 through bolts, a gear disc 12 is rotatably connected on an output shaft of the servo motor 13, and the gear disc 12 is in gear engagement connection with the rack 11.

Example two: referring to fig. 1, four corners threaded connection of fixing base 1 has clamping screw 3, clamping screw 3's setting, an installation for fixing base 1 is fixed, it is connected with folding leg 9 to rotate between the inside roof of dust proof box 4 and projecting apparatus 5, and folding leg 9 is provided with two altogether, two folding legs 9 are symmetrical about electric putter 2 each other, projecting apparatus 5 front surface inlays and is equipped with projecting lens 6, folding leg 9's setting, an auxiliary fixation for projecting apparatus 5, the stability that projecting apparatus 5 passes through electric putter 2 is fixed has been improved.

Example three: referring to fig. 1-4, two racks 11 are provided, and the two racks 11 are parallel to each other, a side wall of the dust-proof box 4 is provided with a bar-shaped hole 15 used in cooperation with the sealing plate 10, another side wall of the dust-proof box 4 is internally provided with a clamping groove 16 used in cooperation with the sealing plate 10, the racks 11 are arranged in cooperation with the gear plate 12, and the gear plate 12 is driven by the servo motor 13 to rotate, so that the sealing plate 10 can be driven to slide left and right, and the sealing plate 10 can be controlled to seal and open the dust-proof box 4.

The working principle is as follows: during the use, pass through fixing base 1 and 3 bolt fastening of clamping screw with this teaching projecting apparatus special for preschool education in appointed position, external good power, alright in order to use, in the time of using, at first, open servo motor 13, servo motor 13 corotation, drive toothed disc 12 and rotate, drive closing plate 10 and move left, then control electric putter 2 extension, make electric putter 2 promote projecting apparatus 5 and shift out dust proof box 4, alright used this moment, after using, control electric putter 2 is flexible, can contract dust proof box 4 with projecting apparatus 5 inside, then seal the bottom opening of dust proof box 4 through closing plate 10, thereby can carry out dustproof protection to projecting apparatus 5, whole device complete operation.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The teaching projector special for preschool education comprises a fixed seat (1), a dust-proof box (4) and a projector (5), and is characterized in that the dust-proof box (4) is welded at the bottom of the fixed seat (1), the top of the dust-proof box (4) is of an open structure, an electric push rod (2) is embedded at the center of the bottom of the fixed seat (1), the bottom end of the electric push rod (2) penetrates through the dust-proof box (4) and extends into the dust-proof box (4), a U-shaped seat (7) is fixed at the center of the top of the projector (5) through a bolt, the U-shaped seat (7) is rotatably connected with the bottom end of the electric push rod (2) through a rotating shaft (8), a sealing plate (10) is inserted at the bottom of one side wall of the dust-proof box (4), a rack (11) is embedded at the lower surface of the sealing plate (10), a fixed plate (14) is welded on one side wall of the dust-proof box (4), and a servo, and an output shaft of the servo motor (13) is rotatably connected with a gear disc (12), and the gear disc (12) is in gear engagement connection with the rack (11).

2. The teaching projector special for preschool education as claimed in claim 1 wherein, the fixing base (1) is screwed with fixing screws (3) at four corners.

3. The teaching projector special for preschool education as claimed in claim 1, wherein the folding legs (9) are rotatably connected between the top plate inside the dust-proof box (4) and the projector (5), and the number of the folding legs (9) is two, and the two folding legs (9) are mutually symmetrical about the electric push rod (2).

4. The teaching projector special for preschool education as claimed in claim 1, wherein the front surface of the projector (5) is embedded with a projection lens (6).

5. The teaching projector special for preschool education as claimed in claim 1, wherein there are two racks (11) and the two racks (11) are parallel to each other.

6. The teaching projector special for preschool education as claimed in claim 1, wherein a strip-shaped hole (15) matched with the sealing plate (10) is formed on one side wall of the dust-proof box (4), and a clamping groove (16) matched with the sealing plate (10) is formed in the other side wall of the dust-proof box (4).