CN111681461A

CN111681461A - Projector for computer application technology teaching

Info

Publication number: CN111681461A
Application number: CN202010626874.3A
Authority: CN
Inventors: 邢玉凤
Original assignee: Kunming Metallurgy College
Current assignee: Kunming Metallurgy College
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2020-09-18

Abstract

The invention discloses a projector for computer application technology teaching, which comprises a shell, wherein the shell is designed to be a cylinder, a projector body capable of horizontally rotating is arranged in the middle of an inner cavity of the shell, a lens is arranged on one side of the projector body, and one end of the lens is close to the inner wall of the shell. This projector is used in teaching of computer application technique, but the design of shell internal rotation formula through the projector organism, when using, the ventilation pipe and the thermovent through both sides are convenient for the projector organism to dispel the heat, and the blockking of no grid, the radiating effect has been improved, and under the state that does not use, the ventilation pipe and the thermovent separation of control projector organism both sides, camera lens and projection groove separation, thereby avoid the ventilation pipe on the projector organism to arrange the outside in, thereby prevent that the dust from getting into in the projector organism, the effectual life who ensures the inside components and parts of projector organism, and need not to set up air filter, the trouble of frequent deashing has been avoided.

Description

Projector for computer application technology teaching

Technical Field

The invention belongs to the field of teaching projection equipment, and particularly relates to a projector for computer application technology teaching.

Background

With the increasing of the technological level, the computer application technology is better developed, plays a role in social production and daily life, provides a lot of convenience for our daily life due to the computer application, and more people learn the computer application technology, and teachers generally use a projector for teaching computer knowledge so as to facilitate education.

However, the lens of the existing projector is exposed outside for a long time, dust is easily accumulated at the lens, the projection picture is easily unclear, the watching of students is influenced, the teaching quality is influenced, the projector is in a working state and has high requirements on heat dissipation, the existing projector is designed in a grid type ventilation mode through a shell, or a dust filtering net is arranged for dust prevention and heat dissipation, however, the grid and the dust filtering net are required to be cleaned frequently, and the follow-up use is troublesome.

The present invention has been made in view of this situation.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art, provide a projector for computer application technology teaching, have the advantages of good projection effect and good heat dissipation effect in long-term use, and solve the problems provided by the background art.

In order to solve the technical problems, the invention adopts the technical scheme that:

a projector for teaching computer application technology comprises a shell which is designed into a cylinder, a projector body capable of horizontally rotating is arranged in the middle of the inner cavity of the shell, a lens is arranged on one side of the projector body, one end of the lens is close to the inner wall of the shell, the middle part of the side surface of the shell is provided with a projection groove matched with the lens, the middle parts of the front surface and the back surface of the shell are both provided with heat radiating ports, one sides of the front surface and the back surface of the projector body are both provided with ventilating pipes, one end of the vent pipe is attached to the inner wall of the shell, the bottom of the shell is provided with a sliding chute positioned at one side of the projection groove, the circle center of the sliding chute and the circle center of the bottom of the shell are positioned at the same point, a positioning bolt is movably sleeved in the sliding chute, and the positioning bolt is locked and fixed through a nut, one side of the positioning bolt is fixedly connected with a linkage block, and the linkage block is fixedly connected with the side face of the lens.

Furthermore, the periphery of the bottom of the shell is provided with an ash discharge groove positioned at the heat dissipation port, the top and the bottom of the ventilation pipe are not in contact with the top and the bottom of the inner cavity of the shell, and two sides of the ventilation pipe are provided with wiping rollers attached to the side wall of the inner cavity of the shell.

Furthermore, the side wall of the inner cavity of the shell is provided with a plugging soft pad positioned on one side of the projection groove, the thickness of the plugging soft pad is uniformly increased, and the length and the height of the plugging soft pad are both greater than those of the side face of the lens.

Furthermore, the top and the bottom of the projector body are fixedly connected with limiting plates, the middle part of one side of the projector body, away from the two limiting plates, is fixedly connected with a rotating shaft, the two rotating shafts are respectively sleeved with a top bearing and a bottom bearing of the shell, the top of the shell is provided with a stepping motor for driving the rotating shafts to rotate, the two sides of the top of the shell are fixedly connected with positioning plates, and the two positioning plates are fixedly connected with suspensions through screws.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

The invention improves the heat dissipation effect by the rotatable design of the projector body in the shell, facilitates the projector body to dissipate heat through the ventilation pipes and the heat dissipation ports on the two sides when in use without the blocking of grids, and controls the ventilation pipes and the heat dissipation ports on the two sides of the projector body to be separated and the lens to be separated from the projection groove when not in use, thereby avoiding the ventilation pipes on the projector body from being arranged outside, preventing dust from entering the projector body, effectively ensuring the service life of components inside the projector body, avoiding the trouble of frequent dust cleaning without arranging an air filter screen, and avoiding the design of the ventilation pipes and the heat dissipation ports without barriers, compared with the prior dust filter screen and grid structure, the invention ensures the better heat dissipation effect of the projector body, improves the performance of the projector body when in use, and effectively prevents the lens from being exposed outside for a long time, so that the dust cannot be accumulated at the lens, ensures that the projection effect is kept better when the projector is used every time.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

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

FIG. 2 is a schematic top view of the projector body of FIG. 1 according to the present invention;

FIG. 3 is a schematic diagram of the projector body of FIG. 2 in an unused state;

fig. 4 is a side view of the housing of the structure of fig. 1 in accordance with the present invention.

In the figure: 1. a housing; 101. a projection slot; 102. a heat dissipation port; 103. an ash discharge groove; 2. positioning a plate; 3. a suspension; 4. a projector body; 5. a lens; 6. plugging the soft cushion; 7. a chute; 8. positioning the bolt; 9. a linkage block; 10. a vent pipe; 11. a rotating shaft; 12. a limiting plate; 13. a stepper motor.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

Example one

As shown in fig. 1 to 4, the projector for teaching computer application technology according to this embodiment includes a housing 1, the housing 1 is designed as a cylinder, a horizontally rotatable projector body 4 is movably sleeved in the middle of an inner cavity of the housing 1, a lens 5 is fixedly connected to one side of the projector body 4, one end of the lens 5 is close to an inner wall of the housing 1, a projection slot 101 matched with the lens 5 is formed in the middle of a side surface of the housing 1, heat dissipation ports 102 are formed in the middle of front and back surfaces of the housing 1, ventilation pipes 10 are fixedly connected to one side of the front and back surfaces of the projector body 4, one end of the ventilation pipe 10 is attached to the inner wall of the housing 1, a sliding slot 7 located at one side of the projection slot 101 is formed in the bottom of the housing 1, a center of the sliding slot 7 is located at the same point as a center of the bottom of the housing 1, a positioning bolt, one side of the positioning bolt 8 is fixedly connected with a linkage block 9, the linkage block 9 is fixedly connected with the side of the lens 5, when in use, the heat dissipation of the projector body 4 is facilitated through the ventilation pipe 10 and the heat dissipation port 102 on the two sides, and in a non-use state, the nut on the positioning bolt 8 is loosened, the projector body 4 is rotated, so that the ventilation pipe 10 and the heat dissipation port 102 on the two sides of the projector body 4 are separated, and the lens 5 is separated from the projection groove 101, thereby avoiding the problem that the ventilation pipe 10 on the projector body 4 is arranged outside, dust easily enters the projector body 4, influences components inside the projector body 4 and damages components, avoiding the trouble of frequent replacement without arranging an air filter screen, and the ventilation pipe 10 and the heat dissipation port 102 without barriers are designed, so that the heat dissipation effect of the projector body 4 is better, and improving the performance of the projector body 4 in use, meanwhile, the problem that the projection effect is influenced by dust accumulation easily caused by long-term exposure of the lens 5 is effectively prevented.

The ash discharge groove 103 that is located thermovent 102 department is seted up to the periphery of shell 1 bottom, and the top of ventilation pipe 10 and bottom and the top and the bottom of shell 1 inner chamber all do not contact, the both sides of ventilation pipe 10 all are equipped with the wiping roller with the laminating of shell 1 inner chamber lateral wall, be in when not user state in projector body 4 for a long time, thermovent 102 department piles up the dust, when needs use, control projector body 4 is rotatory, ventilation pipe 10 changes to thermovent 102 department in-process, clean the dust through the wiping roller, make the dust fall through the ash discharge groove 103 of shell 1 bottom, avoid the dust too much to get into in projector body 4, the life of the inside components and parts of projector body 4 has further been improved.

Wherein, the lateral wall of the inner chamber of the shell 1 is provided with the plugging cushion 6 positioned on one side of the projection groove 101, the thickness of the plugging cushion 6 is uniformly increased, the length and the height of the plugging cushion 6 are both greater than those of the side surface of the lens 5, when the projector is not used, the projector body 4 is controlled to rotate, so that the lens 5 rotates to the plugging cushion 6, the lens 5 is plugged by the plugging cushion 6, the dust can not be accumulated in the lens 5 of the lens 5, always ensure the next use, the lens 5 keeps a clean state, and the projection effect is ensured.

The top and the equal fixedly connected with limiting plate 12 in bottom of projector organism 4, the equal fixedly connected with rotation axis 11 in middle part of 4 one sides of projector organism are kept away from to two limiting plate 12, two rotation axis 11 cup joint with shell 1's top and bottom bearing respectively, and shell 1's top is equipped with the rotatory step motor 13 of drive rotation axis 11, the equal fixedly connected with locating plate 2 in both sides at shell 1 top, through screw fixedly connected with suspension 3 on two locating plate 2, can hang shell 1 on the furred ceiling through suspension 3, when using, it rotates through pneumatic step motor 13 control projector organism 4, thereby adjust the position of camera lens 5, need not manual operation, the projector of installing on the furred ceiling is made things convenient for and is used.

When the projector is used, when the projector is placed on a desk, the positioning bolt 8 is fixed on the shell 1 by screwing down the nut at the bottom end of the positioning bolt 8, so that the position of the lens 5 is controlled, namely when the projector is used, the lens 5 is controlled to be positioned at the projection groove 101, and when the projector is not used, the lens 5 is positioned at the plugging cushion 6; when the projector needs to be installed on the suspended ceiling, the suspension 3 and the positioning plate 2 are fixedly connected through the nut, one end of the suspension 3 is fixed on the suspended ceiling, and when the projector is used, the projector body 4 is driven to rotate through the stepping motor 13, and the position of the lens 5 is controlled.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A projector for teaching computer application technology is characterized in that: the projector is characterized by comprising a shell (1), wherein the shell (1) is designed to be a cylinder, a horizontally-rotatable projector body (4) is arranged in the middle of an inner cavity of the shell (1), a lens (5) is arranged on one side of the projector body (4), one end of the lens (5) is close to the inner wall of the shell (1), a projection groove (101) matched with the lens (5) is formed in the middle of the side surface of the shell (1), heat dissipation ports (102) are formed in the middle of the front surface and the back surface of the shell (1), ventilation pipes (10) are formed in the front surface and the back surface of the projector body (4), one end of each ventilation pipe (10) is attached to the inner wall of the shell (1), a sliding groove (7) located on one side of the projection groove (101) is formed in the bottom of the shell (1), the circle center of each sliding groove (7) is located at the same point as the circle center of the bottom of the, and the positioning bolt (8) is locked and fixed through a nut, one side of the positioning bolt (8) is fixedly connected with a linkage block (9), and the linkage block (9) is fixedly connected with the side face of the lens (5).

2. The projector for teaching computer application technology according to claim 1, wherein: the dust exhaust groove (103) located at the heat dissipation port (102) is formed in the periphery of the bottom of the shell (1), the top and the bottom of the ventilation pipe (10) are not in contact with the top and the bottom of the inner cavity of the shell (1), and wiping rollers attached to the side wall of the inner cavity of the shell (1) are arranged on two sides of the ventilation pipe (10).

3. The projector for teaching computer application technology according to claim 1, wherein: the lateral wall of shell (1) inner chamber is equipped with shutoff cushion (6) that are located projection groove (101) one side, and the even increase of thickness of shutoff cushion (6), and the length and the height of shutoff cushion (6) all are greater than the length and the height of camera lens (5) side.

4. The projector for teaching computer application technology according to claim 1, wherein: the projector is characterized in that limiting plates (12) are fixedly connected to the top and the bottom of the projector body (4), a rotating shaft (11) is fixedly connected to the middle of one side of the projector body (4) and far away from the two limiting plates (12), the rotating shaft (11) is sleeved with a bearing at the top and the bottom of the shell (1) respectively, a stepping motor (13) for driving the rotating shaft (11) to rotate is arranged at the top of the shell (1), positioning plates (2) are fixedly connected to the two sides of the top of the shell (1), and a suspension (3) is fixedly connected to the positioning plates (2) through screws.