CN212808901U

CN212808901U - Multi-surface reflection Chinese writing projector

Info

Publication number: CN212808901U
Application number: CN202022389342.0U
Authority: CN
Inventors: 李传信
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-24
Filing date: 2020-10-24
Publication date: 2021-03-26
Anticipated expiration: 2030-10-24

Abstract

The utility model provides a multiaspect reflection chinese writing on blackboard projecting apparatus, it includes the install bin, periscope and projecting apparatus body, the install bin includes upper end open-ended box, the case lid, the positive central point of box puts fixed cover and the inside switch-on of install bin, the light source of projecting apparatus body aligns with fixed cover, the periscope is including the first horizontal segment that connects gradually, vertical section and second horizontal segment, the periscope is the hollow bending structure of rectangle, the department of bending that first horizontal segment and vertical section formed is provided with the first reflector of forty-five degree angle slope, the department of bending that second horizontal segment and vertical section formed is provided with the second reflector of forty-five degree angle slope, the fixed butt joint cover as an organic whole has been cup jointed to the outside of first horizontal segment, the butt joint cover is connected the cooperation with fixed cover rotation and the contact surface is provided with the damping layer, the light of projecting apparatus body can be through first reflector, And the second reflector is led out, and the projection area is adjusted by rotating the periscope.

Description

Multi-surface reflection Chinese writing projector

Technical Field

The utility model relates to a projection equipment technical field, concretely relates to multiaspect reflection chinese writing on blackboard projecting apparatus.

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, and 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 for Chinese teaching blackboard writing, and has important functions and application in teaching.

The applicant finds a Chinese utility model patent of 'university Chinese teaching blackboard writing projector' through search, its mandate notice number is CN210348829U, it includes the projecting apparatus body, projecting apparatus body fixed mounting is inside the protection box, fixed surface installs the motor on the projecting apparatus body, fixed surface installs projecting lens before the projecting apparatus body, the protection box lateral wall is provided with the line hole, protection box front surface is provided with movable sunshade one, protection box rear surface is provided with movable sunshade two, the inside opening mechanism that is provided with of protection box, opening mechanism control movable sunshade one and movable sunshade two are opened, cover fixed mounting on the protection box has the air curtain machine, the air outlet of air curtain machine is perpendicular downwards and be located the projecting lens top, the output fixedly connected with light screen of motor, the light screen is located projecting lens the place ahead, the inside fixed mounting of protection box has control chip, can effectively prevent projecting lens deposition dirt of projecting apparatus. The installation of current projecting apparatus is finished the back, and the regional relatively fixed of its projected angle and projection only can satisfy the demand of fine setting, can't carry out adjustment projection area by a wide margin, for this reason, it is ingenious, the principle is simple, the operation is convenient to use to need to provide a structure, can adjust projection area's multiaspect reflection chinese writing on blackboard projecting apparatus to satisfy the projection demand of actual chinese teaching.

SUMMERY OF THE UTILITY MODEL

For solving prior art's not enough, the utility model aims at providing a structure is ingenious, the principle is simple, the operation is used conveniently, can adjust the regional multiaspect reflection chinese writing of books projector of projection, aims at solving the technical problem that the projector projection region can't adjust by a wide margin among the prior art.

In order to achieve the technical purpose, the utility model adopts the following technical scheme.

A multi-surface reflection Chinese writing projector comprises a mounting box, a periscope and a projector body, wherein the projector body is arranged in the mounting box, the periscope is rotatably arranged on the front surface of the mounting box and used for guiding out light of the projector body, the mounting box comprises a box body with an upper end opening, a sealing box cover is detachably arranged at an opening of the box body, a suspender is fixedly arranged at the central position of the upper end surface of the box cover, the top of the suspender is used for being connected and fixed with a ceiling, a fixing sleeve is fixedly arranged at the central position of the front surface of the box body and communicated with the inside of the mounting box, a light source of the projector body is aligned with the fixing sleeve, the periscope comprises a first horizontal section, a vertical section and a second horizontal section which are sequentially connected, the periscope is of a rectangular hollow bending structure, and a bending part formed by the first horizontal section and the vertical section is provided with a first reflector with, the department of bending that second horizontal segment and vertical section formed is provided with the second reflector of forty-five degree angle slopes, and first reflector sets up with the second reflector mirror surface relatively, and the fixed butt joint cover as an organic whole has been cup jointed to the outside of first horizontal segment, and the butt joint cover is connected the cooperation with fixed cover swivelling joint and the contact surface is provided with the damping layer, and the light of projecting apparatus body can be derived through first reflector, second reflector, realizes the adjustment to the projection area through rotating the periscope.

As a further optimization or improvement of the present solution.

The side of the box body is provided with a plurality of vertical strip-shaped air holes which penetrate through the box body, and the air holes are arranged in parallel.

As a further optimization or improvement of the present solution.

The inside of box is fixed and is provided with the fan, and the fan sets up along the direction of running through of bleeder vent.

As a further optimization or improvement of the present solution.

The projector is characterized in that a support frame with a hollow structure is arranged in the box body, the projector body is placed on the support frame, and the fan is located below the support frame.

Compared with the prior art, the utility model beneficial effect lie in:

1. the projection device is ingenious in structure, simple in principle and convenient and fast to operate and use, projection light is guided out through multi-surface reflection, the periscope is rotated, the adjustment of a projection area is realized, and the projection device is suitable for changeable Chinese teaching projection requirements;

2. the periscope is in rotating connection and matching with the fixed sleeve, and a damping layer is arranged between the periscope and the fixed sleeve, so that the periscope is convenient to adjust and good in stability;

3. be provided with the support frame of fretwork in the install bin, the support frame bottom is provided with and is used for carrying out radiating fan to the projecting apparatus body, and the install bin air can carry out inside and outside circulation through the bleeder vent, and the radiating effect is good.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained based on these drawings without inventive work.

Fig. 1 is a schematic view of the overall structure of the present invention;

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

FIG. 3 is a schematic view of the structure of the mounting box;

FIG. 4 is a view of the attachment of the fixation sleeve to the periscope;

FIG. 5 is a cross-sectional view of the periscope;

fig. 6 is a view showing the projector body and the periscope in cooperation.

Labeled as:

10. installing a box; 11. a box body; 12. a box cover; 13. a boom; 14. air holes are formed; 15. a support frame; 16. a fan; 17. fixing a sleeve;

20. a periscope; 21. a first horizontal segment; 22. a vertical section; 23. a second horizontal segment; 24. butting sleeves; 25. a first reflective mirror; 26. a second reflective mirror;

30. the projector body.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the 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, the ordinary skilled in the art can obtain all other embodiments without creative work, which all belong to the protection scope of the present invention.

Referring to fig. 1-6, a multi-surface reflection Chinese writing projector includes a mounting box 10, a periscope 20 and a projector body 30, the projector body 30 is disposed in the mounting box 10, the periscope 20 is rotatably disposed on the front surface of the mounting box 10 and is used for guiding out light of the projector body 30, the mounting box 10 includes a box body 11 with an upper end opening, a sealed box cover 12 is detachably disposed at an opening of the box body 11, a suspension rod 13 is fixedly disposed at a central position of an upper end surface of the box cover 12, a top of the suspension rod 13 is used for being connected and fixed with a ceiling, a fixing sleeve 17 is fixedly disposed at a central position of the front surface of the box body 11 and is communicated with the inside of the mounting box 11, a light source of the projector body 30 is aligned with the fixing sleeve 17, the periscope 20 includes a first horizontal section 21, a vertical section 22 and a second horizontal section 23 which are sequentially connected, the periscope 20 is of a, the department of bending that first horizontal segment 21 and vertical segment 22 formed is provided with the first reflector 25 of forty-five degree angle slope, the department of bending that second horizontal segment 23 and vertical segment 22 formed is provided with the second reflector 26 of forty-five degree angle slope, first reflector 25 sets up with second reflector 26 mirror surface relatively, fixed docking sleeve 24 as an organic whole has been cup jointed to the outside of first horizontal segment 21, docking sleeve 24 is connected the cooperation with fixed cover 17 swivelling joint and the contact surface is provided with the damping layer, the light of projecting apparatus body 30 can be through first reflector 25, second reflector 26 is derived, realize the adjustment to projection area through rotating periscope 20.

The working principle is that in the actual teaching process, when the projection area needs to be adjusted, the periscope 20 is rotated according to the projection position of the actual demand, the butt joint sleeve 24 rotates around the fixed sleeve 17 and realizes the deflection of the vertical section 22, the light of the projector body 30 is guided out through the first reflector 25 and the second reflector 26 and is projected onto a curtain (the curtain is a matched large curtain), the projection area synchronously rotates along with the rotation of the periscope 20, but the projection picture always keeps upright, the projection method has the advantages of ingenious structure, simple principle and convenient operation and use, the projection light is guided out through multi-surface reflection, the periscope is rotated, the adjustment of the projection area is realized, and the projection method is suitable for the variable Chinese teaching projection demand; the periscope is connected with the fixed sleeve in a rotating mode and matched, and a damping layer is arranged between the periscope and the fixed sleeve, so that the periscope is convenient to adjust and good in stability.

Referring to fig. 3, as the utility model discloses the more optimized scheme, for the heat dissipation of projector body 30 of the convenience, vertical strip bleeder vent 14 that runs through is seted up to the side of box 11, and bleeder vent 14 is provided with a plurality ofly in parallel, and the meaning of taking this scheme lies in, is convenient for to projector body 30 ventilation cooling.

Refer to fig. 2, as the utility model discloses more perfect scheme, in order to promote the radiating efficiency, the fixed fan 16 that is provided with in inside of box 10, fan 16 set up along the direction of running through of bleeder vent 14, and the meaning of this scheme of adoption lies in, starts the fan, can promote the air flow rate, and the radiating effect is good.

Referring to fig. 2, as the utility model discloses the more scheme of optimizing, for the convenience is to the heat dissipation of projector body 30, be provided with hollow out construction's support frame 15 in the box 11, projector body 30 places on support frame 15, and fan 15 is located support frame 15 below, and the meaning of taking this scheme lies in, raises projector body 30, the ventilation cooling of being convenient for.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention; various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-surface reflection Chinese writing projector is characterized in that: the periscope comprises a mounting box, a periscope and a projector body, wherein the projector body is arranged in the mounting box, the periscope is rotatably arranged on the front of the mounting box and used for guiding out light rays of the projector body, the mounting box comprises a box body with an upper end opening, a sealing box cover is detachably arranged at the opening of the box body, a suspender is fixedly arranged at the central position of the upper end face of the box cover, the top of the suspender is fixedly connected with a ceiling, a fixed sleeve is fixedly arranged at the central position of the front of the box body and communicated with the inside of the mounting box, a light source of the projector body is aligned with the fixed sleeve, the periscope comprises a first horizontal section, a vertical section and a second horizontal section which are sequentially connected, the periscope is of a rectangular hollow bending structure, a first reflector inclined at a forty-five degree angle is arranged at a bending part formed by the first horizontal section and the vertical section, and a second reflector inclined at a forty-five degree angle is arranged, first reflector sets up with second reflector mirror surface relatively, and the fixed butt joint cover as an organic whole has been cup jointed to the outside of first horizontal segment, and the butt joint cover is connected the cooperation with fixed cover swivelling joint and the contact surface is provided with the damping layer, and the light of projecting apparatus body can be derived through first reflector, second reflector, realizes the adjustment to the projection area through rotating the periscope.

2. The multi-faceted reflective blackboard writing projector of claim 1, wherein: the side of the box body is provided with a plurality of vertical strip-shaped air holes which penetrate through the box body, and the air holes are arranged in parallel.

3. The multi-faceted reflective blackboard writing projector of claim 2, wherein: the inside of box is fixed and is provided with the fan, and the fan sets up along the direction of running through of bleeder vent.

4. The multi-faceted reflective blackboard writing projector of claim 3, wherein: the projector is characterized in that a support frame with a hollow structure is arranged in the box body, the projector body is placed on the support frame, and the fan is located below the support frame.