CN213400046U

CN213400046U - Projection arrangement is used in computer teaching convenient to heat dissipation

Info

Publication number: CN213400046U
Application number: CN202022735201.XU
Authority: CN
Inventors: 索蓓蓓
Original assignee: Shaanxi Xueqian Normal University
Current assignee: Shaanxi Xueqian Normal University
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-06-08
Anticipated expiration: 2030-11-24

Abstract

The utility model relates to the technical field of projection equipment, in particular to a computer teaching projection device convenient for heat dissipation, which comprises a main box, a lens, a rectangular box and a rubber seat, wherein the front end of the main box is provided with the lens, the right end of the lens is provided with the rectangular box, the rear end of the rectangular box is fixedly connected with the outer wall of the front end of the main box, the upper end of the main box is provided with a cover plate, the middle part of the cover plate is provided with a filter screen, the front end and the rear end of the cover plate are both provided with slide plates which are slidably connected with the inner wall of the upper end of the main box, the upper end of the slide plate is provided with a pull rod, the lower end of the pull rod is fixedly connected with the upper end of the slide plate, the right end of the slide plate is provided with an inserting rod, the right end inside the main box is provided with a fan, the left end of the, the operation is simple and practical.

Description

Projection arrangement is used in computer teaching convenient to heat dissipation

Technical Field

The utility model relates to a projection equipment technical field specifically is a projecting apparatus is used in computer teaching convenient to heat dissipation.

Background

The projection device is an optical instrument which uses optical elements to enlarge the outline of a workpiece and projects the workpiece onto a screen, can be used for measuring the outline by using transmitted light and also can be used for measuring the surface shape of a non-through hole and observing the surface of the part by using reflected light, is particularly suitable for measuring complex outlines and tiny workpieces such as clock parts, stamping parts, electronic elements, templates, dies, threads, gears, forming cutters and the like, has high inspection efficiency, is convenient to use, is widely applied to metering chambers and production workshops, and is particularly suitable for instrument and meter and meeting occasions in the clock industry.

Projection arrangement can produce a large amount of heats at the during operation, if not carry out the life that can lead to projection arrangement that dispels the heat refrigerated when in time and reduce, common projection arrangement is through increasing louvre or filter screen, utilize the fan to dispel the heat the cooling, however, the filter screen surface can be stained with a large amount of dusts, can block up louvre and filter screen and make the radiating effect variation of device, and traditional device filter screen dismantles troublesome very hard, projection arrangement's lens surface also can be stained with the dust simultaneously, and traditional device still needs artifical manual clearance, not only troublesome but also easy because of doing improper scratch camera lens hard, lead to projection arrangement impaired.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a projecting apparatus is used in computer teaching convenient to heat dissipation to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a computer-teaching projection device convenient for heat dissipation comprises a main box, a lens, a rectangular box and a rubber seat, wherein the lens is arranged at the front end of the main box, the rectangular box is arranged at the right end of the lens, the rear end of the rectangular box is fixedly connected with the outer wall of the front end of the main box, a cover plate is arranged at the upper end of the main box, a filter screen is arranged in the middle of the cover plate, sliding plates are arranged at the front end and the rear end of the cover plate respectively, the sliding plates are slidably connected with the inner wall of the upper end of the main box, a pull rod is arranged at the upper end of each sliding plate, the lower end of each pull rod is fixedly connected with the upper end of each sliding plate, an inserting rod is arranged at the right end of each sliding plate, a fan is arranged at the right end in the main box, a ventilating plate is arranged at the left end of the fan, the, rectangle frame left end middle part is provided with the push rod, push rod right-hand member and rectangle frame left end middle part fixed connection, the push rod left end is provided with the sponge board, sponge board and rectangle case left end inner wall sliding connection, the runner rear end is provided with micro motor, micro motor's transmission shaft passes through connecting key and runner middle part fixed connection, the inside left end of rectangle case is provided with the controller, rectangle case front end outer wall right side is provided with the button.

Preferably, the upper end and the lower end of the push rod are both provided with pulleys, the pulleys are rotatably connected with the inner wall of the rectangular box through shafts, and the pulleys are in rolling connection with the push rod.

Preferably, the right end of the cover plate is rotatably connected with the upper end of the main box through a shaft, and the filter screen is slidably connected with the inner wall of the cover plate.

Preferably, the middle part of the rectangular frame is provided with a strip-shaped hollow groove, and the rotating wheel is connected with the rectangular frame in a sliding mode through a shaft and the strip-shaped hollow groove.

Preferably, the middle part of the lower end of the cover plate is provided with a working spring, and the upper end of the working spring is rotatably connected with the middle part of the lower end of the cover plate through a hinge seat.

Preferably, a fixed spring is arranged between the sliding plate and the inner wall of the upper end of the main box, and the fixed spring is fixedly connected with the sliding plate.

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

1. the utility model discloses in, can make the dismantlement of installing the filter screen change operation become simple laborsaving through what set up can pivoted apron and fixed spring and working spring, only need control pull rod alright rotate from the main tank upper end with realizing that the apron drives the filter screen, compare with the mode that traditional whole dismounting device changed the filter screen, it is more laborsaving convenient.

2. The utility model discloses in, the mode of clearing up is carried out to the lens surface as power utilization runner and push rod drive sponge board through the micro motor that sets up, very convenient and compare with the artifical clearance of tradition, not only light but also safer more, can guarantee the clean and tidy while of camera lens clearance not cause the damage to the camera lens, obviously improve the reliability that the device used.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a top view of the overall structure of the present invention;

FIG. 3 is a schematic diagram of the rectangular box of FIG. 1 according to the present invention;

fig. 4 is a top view of the rectangular box of fig. 3 according to the present invention.

In the figure: 1-main box, 2-lens, 3-rectangular box, 4-micro motor, 5-runner, 6-rectangular frame, 7-push rod, 8-pulley, 9-sponge plate, 10-controller, 11-cover plate, 12-filter screen, 13-pull rod, 14-slide plate, 15-inserted bar, 16-working spring, 17-fixed spring, 18-button, 19-rubber seat, 20-fan and 21-ventilating plate.

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. 1-4, the present invention provides a technical solution:

a computer teaching projection device convenient for heat dissipation comprises a main box 1, a lens 2, a rectangular box 3 and a rubber seat 19, wherein the lens 2 is arranged at the front end of the main box 1, the rectangular box 3 is arranged at the right end of the lens 2, the rear end of the rectangular box 3 is fixedly connected with the outer wall of the front end of the main box 1, a cover plate 11 is arranged at the upper end of the main box 1, a filter screen 12 is arranged in the middle of the cover plate 11, sliding plates 14 are arranged at the front and rear ends of the cover plate 11, the sliding plates 14 are slidably connected with the inner wall of the upper end of the main box 1, a pull rod 13 is arranged at the upper end of the sliding plates 14, the lower end of the pull rod 13 is fixedly connected with the upper end of the sliding plates 14, an inserted rod 15 is arranged at the right end of the sliding plates 14, a fan 20 is arranged at the right end of the inside of the main box 1, a ventilating plate 21 is fixedly connected with the inner wall of, 6 left end middle parts of rectangle frame are provided with

push rod

7, 7 right-hand members of push rod and 6 left end middle part fixed connection of rectangle frame, 7 left ends of push rod are provided with sponge board 9,

sponge board

9 and 3 left end inner wall sliding connection of rectangle case, 5 rear ends of runner are provided with micro motor 4, micro motor 4's transmission shaft passes through connection key and 5 middle part fixed connection of runner, the inside left end of rectangle case 3 is provided with

controller

10, 3 front end outer walls right sides of rectangle case are provided with button 18.

The upper end and the lower end of the push rod 7 are both provided with pulleys 8, the pulleys 8 are rotationally connected with the inner wall of the rectangular box 3 through shafts, the pulleys 8 are connected with the push rod 7 in a rolling way, provide the sliding support to the push rod and prevent simultaneously that push rod 7 from removing the in-process and taking place the skew and carry on spacingly, apron 11 right-hand member rotates through axle and main case 1 upper end and is connected,

filter screen

12 and 11 inner wall sliding connection of apron, be convenient for dismantle the change to

filter screen

12, 6 middle parts of rectangular frame are provided with the bar dead slot, runner 5 passes through axle and bar dead slot and 6 sliding connection of rectangular frame, it removes to drive rectangular frame 6 smoothly, there is work spring 16 apron 11 lower extreme middle part, work spring 16 upper end is rotated through hinge seat and apron 11 lower extreme middle part and is connected, promote apron 11 and rotate, be provided with fixed spring 17 between slide 14 and the 1 upper end inner wall of main case, fixed

spring

17 and 14 fixed connection of slide, be convenient for fix apron 11 through inserted bar 15.

The working process is as follows: the utility model supplies power through the external circuit, when the projecting device works, the fan 20 is started, the air current generated by the fan 20 passes through the conical through hole of the ventilating plate 21 to cool and radiate the inside of the main box 1, when the work is finished, the controller 10 starts the micro motor 4, the transmission shaft of the micro motor 4 drives the rotating wheel 5 to rotate, the rotating wheel 5 drives the rectangular frame 6 to move leftwards, the rectangular frame 6 drives the push rod 7 to move leftwards, the push rod 7 drives the sponge plate 9 to move leftwards, when the sponge plate 9 moves to the leftmost end of the lens 2, the rotating wheel 5 drives the rectangular frame 6 to move rightwards, the rectangular frame 6 drives the push rod 7 to move rightwards, the push rod 7 drives the sponge plate 9 to move rightwards, by using the mode, the sponge plate 9 can continuously move leftwards and rightwards and backwards under the effect of the micro motor 4, thereby wiping the dust at the front end of the lens 2, when the, only pulling the pull rod 13, the pull rod 13 drives the sliding plate 14 to move, the fixing spring 17 is compressed in the moving process of the sliding plate 14, the sliding plate 14 drives the insertion rod 15 to move, when the insertion rod 15 leaves a slotted hole at the left end of the cover plate 11, the cover plate 11 rotates upwards under the action of the working spring 16, the left end of the cover plate 11 rotates to the upper end of the main box 1, the filter screen 12 can be easily pulled out of the cover plate 11 at the moment, the filter screen 12 is cleaned or replaced with a new filter screen 12 and is directly inserted into the middle of the cover plate 11, then the cover plate 11 is pressed downwards, the working spring 16 is compressed in the downward rotating process of the cover plate 11, when the cover plate 11 returns to the upper end of the main box 1 again, the pull rod 13 is loosened, the sliding plate 14 moves reversely under the action of the fixing spring 17, the sliding plate 14 drives the insertion rod 15 to move reversely and is inserted into.

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

1. The utility model provides a projection arrangement for computer teaching convenient to heat dissipation, includes main tank (1), camera lens (2), rectangle case (3) and rubber seat (19), its characterized in that: the camera lens is characterized in that a camera lens (2) is arranged at the front end of the main box (1), a rectangular box (3) is arranged at the right end of the camera lens (2), the rear end of the rectangular box (3) is fixedly connected with the outer wall of the front end of the main box (1), an apron plate (11) is arranged at the upper end of the main box (1), a filter screen (12) is arranged in the middle of the apron plate (11), sliding plates (14) are arranged at the front end and the rear end of the apron plate (11), the sliding plates (14) are slidably connected with the inner wall of the upper end of the main box (1), a pull rod (13) is arranged at the upper end of the sliding plates (14), the lower end of the pull rod (13) is fixedly connected with the upper end of the sliding plates (14), an inserted rod (15) is arranged at the right end of the sliding plate (14), a fan (20) is arranged at the right end inside the main, four corner position departments in main case (1) below are provided with rubber seat (19), the inside right-hand member of rectangle case (3) is provided with runner (5), runner (5) front end is provided with rectangle frame (6), rectangle frame (6) left end middle part is provided with push rod (7), push rod (7) right-hand member and rectangle frame (6) left end middle part fixed connection, push rod (7) left end is provided with sponge board (9), sponge board (9) and rectangle case (3) left end inner wall sliding connection, runner (5) rear end is provided with micro motor (4), the transmission shaft of micro motor (4) passes through connection key and runner (5) middle part fixed connection, the inside left end of rectangle case (3) is provided with controller (10), rectangle case (3) front end outer wall right side is provided with button (18).

2. The projection device for computer teaching convenient for heat dissipation according to claim 1, wherein: the upper end and the lower end of the push rod (7) are respectively provided with a pulley (8), the pulleys (8) are rotatably connected with the inner wall of the rectangular box (3) through shafts, and the pulleys (8) are connected with the push rod (7) in a rolling mode.

3. The projection device for computer teaching convenient for heat dissipation according to claim 1, wherein: the right end of the cover plate (11) is rotatably connected with the upper end of the main box (1) through a shaft, and the filter screen (12) is connected with the inner wall of the cover plate (11) in a sliding mode.

4. The projection device for computer teaching convenient for heat dissipation according to claim 1, wherein: the middle part of the rectangular frame (6) is provided with a strip-shaped empty groove, and the rotating wheel (5) is connected with the rectangular frame (6) in a sliding mode through a shaft and the strip-shaped empty groove.

5. The projection device for computer teaching convenient for heat dissipation according to claim 1, wherein: and the middle part of the lower end of the cover plate (11) is provided with a working spring (16), and the upper end of the working spring (16) is rotatably connected with the middle part of the lower end of the cover plate (11) through a hinge seat.

6. The projection device for computer teaching convenient for heat dissipation according to claim 1, wherein: a fixed spring (17) is arranged between the sliding plate (14) and the inner wall of the upper end of the main box (1), and the fixed spring (17) is fixedly connected with the sliding plate (14).