CN214312122U

CN214312122U - Probability theory and mathematical statistics are projector for review

Info

Publication number: CN214312122U
Application number: CN202120730019.7U
Authority: CN
Inventors: 高娟; 李同彬
Original assignee: Harbin Normal University
Current assignee: Harbin Normal University
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-09-28
Anticipated expiration: 2031-04-12

Abstract

The utility model discloses a probability theory and mathematical statistics are projector for reproduction, including the projecting apparatus main part, install the projecting lens on the projecting apparatus main part front surface and set up the heat dissipation window in projecting apparatus main part both sides, the spacing groove has still been seted up to the both sides of projecting apparatus main part, and the top of projecting apparatus main part installs clean subassembly, the mount pad is installed to the below of projecting apparatus main part, the equal rigid coupling of four corners of lower surface of mount pad has the supporting shoe, and the internally mounted of mount pad has adjusting part. The utility model discloses a clean subassembly can the person of facilitating the use clean the accumulational dust in projecting apparatus main part top, has reduced the artifical clean degree of difficulty, can accomplish clean task in the short time, and efficiency is higher, can the person of facilitating the use adjust the angle of projecting apparatus main part according to reviewing needs through adjusting part, makes it satisfy actual use needs, and it is comparatively convenient to adjust moreover, easily reviews the use.

Description

Probability theory and mathematical statistics are projector for review

Technical Field

The utility model particularly relates to a probability theory and mathematical statistics are projector for review.

Background

The theory and method of probability theory and mathematical statistics have been widely applied in industry, agriculture, military and scientific technology, such as prediction and filtering applied in space technology and automatic control, and the probability theory and mathematical statistics primarily examine the understanding of examinees on the basic concept, basic theory and basic method for studying the regularity of random phenomena, and the capability of analyzing and solving practical problems by using the probability statistics method, which is relatively unsmooth. Review probability theory and mathematical statistics often need to project review contents onto a screen through a projector, so that students under a desk can watch the review contents conveniently. After the existing projector is used for a long time, more dust can be accumulated on the top of the projector, manual cleaning is inconvenient, and the angle of the existing projector is inconvenient to adjust and is difficult to rotate to an ideal position for use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a probability theory and mathematical statistics are repeated and are used projecting apparatus 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:

the utility model provides a probability theory and mathematical statistics are projector for study again, includes the projecting apparatus main part, installs the projecting lens on projecting apparatus main part front surface and sets up the heat dissipation window in projecting apparatus main part both sides, the spacing groove has still been seted up to the both sides of projecting apparatus main part, and the top of projecting apparatus main part installs clean subassembly, the mount pad is installed to the below of projecting apparatus main part, the equal rigid coupling of four corners of lower surface of mount pad has the supporting shoe, and the internally mounted of mount pad has adjusting part. The adjusting component comprises a first bevel gear, a first rotating shaft, a second bevel gear, a second rotating shaft and a first handle, the bottom end of the first rotating shaft is rotatably connected inside the mounting seat through a bearing, the top end of the first rotating shaft penetrates through the upper surface of the mounting seat and is rotatably connected to the center of the lower surface of the projector main body through a bearing, the first bevel gear is fixedly sleeved outside the first rotating shaft, the second bevel gear is meshed on one side of the first bevel gear, the second rotating shaft is fixedly connected to the second bevel gear, and one end of the second rotating shaft penetrates through the side wall of the mounting seat and is fixedly connected with the first handle.

As a further aspect of the present invention: the first bevel gear and the second bevel gear are both installed inside the installation seat and are vertically distributed.

As a further aspect of the present invention: clean subassembly includes stopper, clean brush, mounting bracket and second handle, the equal rigid coupling in both ends department of mounting bracket has the stopper rather than self mutually perpendicular, and the upper surface center department rigid coupling of mounting bracket has the second handle, the lower surface equidistance rigid coupling of mounting bracket has clean brush.

As a further aspect of the present invention: the bottom of the cleaning brush is attached to the upper surface of the projector main body.

As a further aspect of the present invention: the limiting block is connected inside the limiting groove in a sliding mode.

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

1. the utility model can facilitate the user to clean the dust accumulated on the top of the projector main body through the cleaning component, thereby reducing the difficulty of manual cleaning, completing the cleaning task in a short time and having higher efficiency;

2. the angle that can the person of facilitating the use adjust the projecting apparatus main part according to actual need through adjusting part makes its user demand when satisfying review and watching, and it is comparatively convenient to adjust moreover, easily reviews the use.

Drawings

FIG. 1 is a schematic diagram of a projector for probability theory and mathematical statistics reconstruction;

FIG. 2 is a schematic diagram of an adjusting component of a projector for probability theory and mathematical statistics retrieval;

FIG. 3 is a schematic diagram of a cleaning assembly of a projector for probability theory and mathematical statistics review.

In the figure: 1. a cleaning assembly; 2. a limiting groove; 3. a heat dissipation window; 4. a support block; 5. a mounting seat; 6. a projection lens; 7. a projector main body; 8. a first bevel gear; 9. a first rotating shaft; 10. a second bevel gear; 11. a second rotation shaft; 12. a first handle; 13. an adjustment assembly; 14. a limiting block; 15. cleaning the brush; 16. a mounting frame; 17. a second handle.

Detailed Description

Referring to fig. 1 to 3, in the embodiment of the present invention, a projector for probability theory and mathematical statistics review comprises a projector main body 7, a projection lens 6 mounted on the front surface of the projector main body 7, and heat dissipation windows 3 formed on both sides of the projector main body 7, wherein both sides of the projector main body 7 are further provided with a limiting groove 2, and a cleaning assembly 1 is mounted above the projector main body 7, the cleaning assembly 1 comprises a limiting block 14, a cleaning brush 15, a mounting frame 16, and a second handle 17, the two ends of the mounting frame 16 are both fixedly connected with the limiting block 14 perpendicular to the mounting frame, the center of the upper surface of the mounting frame 16 is fixedly connected with the second handle 17, the lower surface of the mounting frame 16 is fixedly connected with the cleaning brush 15 at equal intervals, the cleaning brush 15 is a component made of plastic material, the bottom of the cleaning brush 15 is attached to the upper surface of the projector main body 7, the limiting block 14 is slidably connected inside the limiting groove 2, can convenience of customers cleans 7 top accumulational dusts of projecting apparatus main part through clean subassembly 1, reduce the artifical clean degree of difficulty, can accomplish clean task in the short time, efficiency is higher.

In fig. 1 and 2: a mounting seat 5 is installed below the projector main body 7, supporting blocks 4 are fixedly connected at four corners of the lower surface of the mounting seat 5, an adjusting component 13 is installed inside the mounting seat 5, the adjusting component 13 comprises a first bevel gear 8, a first rotating shaft 9, a second bevel gear 10, a second rotating shaft 11 and a first handle 12, the bottom end of the first rotating shaft 9 is rotatably connected inside the mounting seat 5 through a bearing, the top end of the first rotating shaft 9 penetrates through the upper surface of the mounting seat 5 and is rotatably connected at the center of the lower surface of the projector main body 7 through a bearing, the first bevel gear 8 is fixedly sleeved outside the first rotating shaft 9, one side of the first bevel gear 8 is meshed with the second bevel gear 10, the second rotating shaft 11 is fixedly connected on the second bevel gear 10, one end of the second rotating shaft 11 penetrates through the side wall of the mounting seat 5 and is fixedly connected with the first handle 12, and the second rotating shaft 11 is rotatably connected with the mounting seat 5 through a bearing, first bevel gear 8 and second bevel gear 10 are all installed in the inside of mount pad 5, and first bevel gear 8 and second bevel gear 10 are perpendicular distribution, can the person of facilitating the use adjust the angle of projecting apparatus main part 7 according to actual need through adjusting part 13, make it satisfy actual operation needs, and it is comparatively convenient to adjust moreover, easily in-service use.

The utility model discloses a theory of operation is: when the angle of the projector body 7 needs to be adjusted, a user holds the first handle 12 to rotate forwardly, the second rotating shaft 11 can be driven to rotate forwardly at the moment, the second bevel gear 10 is driven to rotate forwardly, the first rotating shaft 9 can be driven to rotate at the moment due to the fact that the second bevel gear 10 and the first bevel gear 8 are meshed with each other, and finally the projector body 7 above is driven to rotate, similarly, when the user holds the first handle 12 to rotate reversely, the projector body 7 above can be driven to rotate in the opposite direction at the moment, so that the angle adjusting function is achieved, the angle of the projector body 7 can be conveniently adjusted according to actual needs by the user through the adjusting component 13, the actual use needs are met, the adjustment is convenient, the actual use is easy, and after more dust is accumulated on the top of the projector body 7, the user holds the second handle 17 to move back and forth, at this moment, the limiting block 14 slides in the limiting groove 2, and then the mounting frame 16 and the cleaning brush 15 can be driven to move back and forth, so that dust at the top of the projector main body 7 is cleaned, an operator can clean dust accumulated at the top of the projector main body 7 through the cleaning assembly 1, the manual cleaning difficulty is reduced, the cleaning task can be completed in a short time, and the efficiency is high.

Claims

1. The projector for probability theory and mathematical statistics rehabilitation comprises a projector main body (7), a projection lens (6) arranged on the front surface of the projector main body (7) and heat dissipation windows (3) arranged on two sides of the projector main body (7), and is characterized in that limiting grooves (2) are further formed in two sides of the projector main body (7), a cleaning component (1) is arranged above the projector main body (7), a mounting seat (5) is arranged below the projector main body (7), supporting blocks (4) are fixedly connected to four corners of the lower surface of the mounting seat (5), and an adjusting component (13) is arranged inside the mounting seat (5);

adjusting part (13) includes first bevel gear (8), first rotation axis (9), second bevel gear (10), second rotation axis (11) and first handle (12), the bottom of first rotation axis (9) is passed through the bearing and is rotated the inside of connecting in mount pad (5), and the top of first rotation axis (9) runs through the upper surface of mount pad (5) and rotates the lower surface center department of connecting in projector main part (7) through the bearing, the outside of first rotation axis (9) is still fixed cup jointed first bevel gear (8), one side meshing of first bevel gear (8) has second bevel gear (10), the rigid coupling has second rotation axis (11) on second bevel gear (10), the one end of second rotation axis (11) runs through the lateral wall of mount pad (5) and the rigid coupling has first handle (12).

2. A projector for probability theory and mathematical statistics review as claimed in claim 1, wherein the first bevel gear (8) and the second bevel gear (10) are installed inside the mounting seat (5), and the first bevel gear (8) and the second bevel gear (10) are vertically distributed.

3. The probability theory and mathematical statistics review projector as claimed in claim 1, wherein the cleaning assembly (1) comprises a limiting block (14), a cleaning brush (15), a mounting frame (16) and a second handle (17), the limiting block (14) perpendicular to the mounting frame (16) is fixedly connected to both ends of the mounting frame (16), the second handle (17) is fixedly connected to the center of the upper surface of the mounting frame (16), and the cleaning brush (15) is fixedly connected to the lower surface of the mounting frame (16) in an equidistant manner.

4. A projector for probability theory and mathematical statistics retrieval as claimed in claim 3, wherein the bottom of the cleaning brush (15) is attached to the upper surface of the projector main body (7).

5. A projector for probability theory and mathematical statistics retrieval as claimed in claim 4, wherein the stopper (14) is slidably connected inside the stopper groove (2).