CN215599871U

CN215599871U - Novel chinese language and literature contrast explanation board

Info

Publication number: CN215599871U
Application number: CN202120173878.0U
Authority: CN
Inventors: 杨文�; 谢起峰; 梁先军; 罗钊
Original assignee: Ruijin No2 Middle School
Current assignee: Ruijin No2 Middle School
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2022-01-21
Anticipated expiration: 2031-01-22

Abstract

The utility model discloses a novel Chinese language and literature contrast explanation board which comprises a flat board, wherein a square frame is arranged on the back surface of the flat board, a back board is arranged inside the square frame, a drawing board is arranged on the front surface of the back board, sliding boards are arranged on two sides of the back board, vertical boards are symmetrically arranged on the lower surface of the flat board along two ends of a central line in the length direction, screw rods are arranged on two opposite side walls of the vertical boards, and rotating boards are rotatably connected to the screw rods. Through the arranged transverse rods, the rotating plate, the plurality of through grooves, the connecting rods, the sliding plate and the square frame, the height of the back plate can be adjusted, when a teacher gives a class, students in the back row can be prevented from not watching the contents on the drawing board, meanwhile, the writing area of the drawing board can be adjusted, and the drawing board can be prevented from being frequently wiped; through the oil pipe, oil transportation passageway and the lubrication groove of advancing that set up, can add lubricating oil on first logical inslot wall when the frictional force grow between first logical groove and the connecting rod, make the connecting rod remove more smoothly in first logical inslot portion.

Description

Novel chinese language and literature contrast explanation board

Technical Field

The utility model relates to the technical field of Chinese language and literature, in particular to a novel Chinese language and literature contrast explanation board.

Background

The Chinese language and literature major is mainly to cultivate talents mastering basic knowledge of Chinese and Chinese literature, and through basic training of system education and business capability in the aspects of relevant theory, development history, research status and the like, research and teaching work can be carried out in scientific research institutions and colleges, and some people can be engaged in external Chinese teaching. It is suitable for professional talents who work on languages and characters in the party and government offices, including newspaper and periodical propaganda, news publishing, film and television culture, Internet and other enterprises and public institutions.

The height of the existing explanation board is mostly unadjustable, when a teacher gives lessons, students in the back row can not see the contents on the explanation board to influence the teacher to give lessons, the area of the explanation board is smaller, the explanation board needs to be frequently cleaned by the teacher, and the operation is very troublesome.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the novel Chinese language and literature contrast explanation board, the height of the back board can be adjusted, when a teacher gives a class, students in the back row can be prevented from not watching the contents on the drawing board, meanwhile, the writing area of the drawing board can be adjusted, and the drawing board can be prevented from being frequently wiped.

In order to solve the technical problems, the utility model provides the following technical scheme: a novel Chinese language and literature contrast explanation board comprises a flat board, wherein the back of the flat board is provided with a square frame, a back plate is arranged in the square frame, a drawing board is arranged on the front surface of the back plate, sliding plates are arranged on two sides of the back plate, vertical plates are symmetrically arranged at two ends of the lower side surface of the flat plate along the length direction of the central line, screw rods are arranged on the side walls of every two vertical plates which are opposite to each other, the screw rod is rotatably connected with a rotating plate, the bottom ends of the back side walls of every two sliding plates are respectively provided with a connecting rod, a first through groove is arranged at the position of the rotating plate body corresponding to the connecting rod, the connecting rod penetrates through the first through groove, a second through groove is arranged at one end of the rotating plate opposite to the first through groove, a cross rod penetrates through the second through groove, the middle line of the lower surface of the flat plate along the width direction is provided with an arc plate, and the positions of the arc plate corresponding to the cross rod are evenly provided with clamping grooves.

As a preferable technical scheme, a lubricating groove is formed in the wall body of the first through groove of the rotating plate, an oil inlet pipe is arranged on the upper surface of the rotating plate, an oil delivery channel is formed in the position, located at the bottom end of the oil inlet pipe, in the rotating plate, and the oil delivery channel is communicated with the lubricating groove.

As a preferable technical scheme of the utility model, a sealing cover is installed at the port of the oil inlet pipe.

As a preferable technical scheme of the utility model, the arc-shaped plate is positioned at one end of the center line of the flat plate, which is far away from the back plate, and the clamping groove is positioned on one side wall of the arc-shaped plate, which is close to the back plate.

As a preferred technical scheme of the utility model, the screw rod is sleeved with the nut, and the rod body of the screw rod, which is positioned between the rotating plate and the nut, is sleeved with the gasket.

As a preferred technical scheme of the utility model, the two ends of the cross rod are respectively provided with the baffle plate, and the rod bodies of the cross rod, which are positioned at the two sides of the arc-shaped plate, are respectively sleeved with the protective sleeves.

As a preferable technical scheme of the utility model, the bottom ends of the vertical plates are provided with bottom plates, and four corners of the bottom plate are provided with square plates.

Compared with the prior art, the utility model can achieve the following beneficial effects:

1. through the arranged transverse rods, the rotating plate, the plurality of through grooves, the connecting rods, the sliding plate and the square frame, the height of the back plate can be adjusted, when a teacher gives a class, students in the back row can be prevented from not watching the contents on the drawing board, meanwhile, the writing area of the drawing board can be adjusted, and the drawing board can be prevented from being frequently wiped;

2. through the oil pipe, oil transportation passageway and the lubrication groove of advancing that set up, can add lubricating oil on first logical inslot wall when the frictional force grow between first logical groove and the connecting rod, make the connecting rod remove more smoothly in first logical inslot portion.

Drawings

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

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

FIG. 3 is a schematic diagram of the right view structure of the present invention;

fig. 4 is a schematic sectional view of the rotating plate of the present invention.

Wherein: 1. a protective sleeve; 2. rotating the plate; 3. a cross bar; 4. a vertical plate; 5. a base plate; 6. an arc-shaped plate; 7. a card slot; 8. a back plate; 9. a slide plate; 10. a drawing board; 11. a flat plate; 12. a square frame; 13. a screw; 14. a first through groove; 15. a connecting rod; 16. a second through groove; 17. an oil inlet pipe; 18. an oil delivery passage; 19. a lubrication groove.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in figures 1-4, a novel Chinese language and literature contrast explanation board comprises a flat plate 11, a square frame 12 is arranged on the back of the flat plate 11, a back plate 8 is arranged inside the square frame 12, a drawing board 10 is arranged on the front of the back plate 8, sliding plates 9 are arranged on both sides of the back plate 8, vertical plates 4 are symmetrically arranged on both ends of the length direction central line of the lower surface of the flat plate 11, a screw 13 is arranged on one side wall of each two vertical plates 4 opposite to each other, a rotating plate 2 is rotatably connected on the screw 13, connecting rods 15 are arranged at the bottom ends of the opposite side walls of each two sliding plates 9, a first through groove 14 is arranged at the position of the rotating plate 2 corresponding to the connecting rods 15, the connecting rods 15 penetrate through the first through grooves 14, a second through groove 16 is arranged at one end of the rotating plate 2 opposite to the first through groove 14, a cross rod 3 penetrates through the inside of the second through groove 16, an arc-shaped plate 6 is arranged on the lower surface of the flat plate 11 along the width direction central line, clamping grooves 7 are uniformly formed in the positions, corresponding to the cross rods 3, of the arc-shaped plates 6;

when giving a lesson, write the explanation on drawing board 10, when the explanation is more, mr pushes down horizontal pole 3, it rotates to drive commentaries on classics board 2, it is relative with ground rising to drive connecting rod 15 of 2 tail ends of commentaries on classics board, connecting rod 15 drives slide 9 and rises along square frame 12, when drawing board 10 can be seen by the back row student, put into draw-in groove 7 with horizontal pole 3 in, through the horizontal pole 3 that sets up, commentaries on classics board 2, a plurality of logical grooves, connecting rod 15, slide 9 and square frame 12, can adjust 8 height of backplate, when mr gives a lesson, avoid the back row student to watch the content on drawing board 10 not, can adjust the area of writing of drawing board 10 simultaneously, avoid frequently cleaning drawing board 10.

In other embodiments, a lubricating groove 19 is formed on the wall body of the rotating plate 2 positioned on the first through groove 14, an oil inlet pipe 17 is arranged on the upper surface of the rotating plate 2, an oil delivery channel 18 is formed in the rotating plate 2 at the position positioned at the bottom end of the oil inlet pipe 17, and the oil delivery channel 18 is communicated with the lubricating groove 19;

when the friction between first logical groove 14 and connecting rod 15 increases, add lubricating oil into inside advancing oil pipe 17, advance the drawing through oil delivery passageway 18 and arrive lubrication groove 19 in, lubricating oil can slowly flow first logical groove (14) inside, it is easier to make connecting rod 15 and the cooperation of first logical groove 14, advance oil pipe 17 through setting up, oil delivery passageway 18 and lubrication groove 19, can be when the frictional force grow between first logical groove 14 and connecting rod 15, on adding first logical groove 14 inner wall with lubricating oil, it is more smooth to make connecting rod 15 remove in first logical groove 14 inside.

In other embodiments, the port of the oil inlet pipe 17 is provided with a sealing cover; the end of the oil feed pipe 17 can be opened and closed.

In other embodiments, the arc-shaped plate 6 is positioned at one end of the midline of the flat plate 11, which is far away from the back plate 8, and the clamping groove 7 is positioned at one side wall of the arc-shaped plate 6, which is close to the back plate 8; prevent edges and corners on the clamping groove 7 from scratching teachers or students.

In other embodiments, a nut is sleeved on the screw 13, and a gasket is sleeved on the rod body of the screw 13 between the rotating plate 2 and the nut; the rotating plate 2 can be prevented from slipping off the screw 13.

In other embodiments, two ends of the cross rod 3 are both provided with baffles, and the rod bodies of the cross rod 3 positioned at two sides of the arc-shaped plate 6 are both sleeved with protective sleeves 1; the operation of the cross rod 3 by both hands is convenient.

In other embodiments, the bottom ends of the vertical plates 4 are provided with bottom plates 5, and four corners of the bottom plates 5 are provided with square plates; the stability of the floor 5 placed on the ground can be improved.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A novel Chinese language and literature contrast explanation board comprises a flat board (11) and is characterized in that: the back of the flat plate (11) is provided with a square frame (12), a back plate (8) is arranged inside the square frame (12), a drawing board (10) is arranged on the front of the back plate (8), sliding plates (9) are arranged on two sides of the back plate (8), vertical plates (4) are symmetrically arranged on the lower side of the flat plate (11) along two ends of a length direction central line, screw rods (13) are arranged on two opposite side walls of the vertical plates (4), rotating plates (2) are rotatably connected on the screw rods (13), connecting rods (15) are arranged at the bottom ends of the two opposite side walls of the sliding plates (9), a first through groove (14) is formed in the position, corresponding to the connecting rods (15), of the plate body of each rotating plate (2), the connecting rods (15) penetrate through the first through grooves (14), and a second through groove (16) is formed in one end, opposite to the first through groove (14), of each rotating plate (2), horizontal pole (3) have been run through to the inside of second logical groove (16), be provided with arc (6) on dull and stereotyped (11) lower surface along width direction's the central line, draw-in groove (7) have evenly been seted up in the position department that arc (6) and horizontal pole (3) correspond.

2. The novel chinese language and literature contrast explanation board of claim 1, characterized in that: the oil feeding device is characterized in that the rotating plate (2) is located on the wall body of the first through groove (14) and is provided with a lubricating groove (19), the upper surface of the rotating plate (2) is provided with an oil inlet pipe (17), an oil conveying channel (18) is formed in the position, located at the bottom end of the oil inlet pipe (17), in the rotating plate (2), and the oil conveying channel (18) is communicated with the lubricating groove (19).

3. The novel chinese language and literature contrast explanation board of claim 2, characterized in that: and a sealing cover is arranged at the port of the oil inlet pipe (17).

4. The novel chinese language and literature contrast explanation board of claim 1, characterized in that: the arc-shaped plate (6) is positioned at one end of the center line of the flat plate (11) far away from the back plate (8), and the clamping groove (7) is positioned on one side wall of the arc-shaped plate (6) close to the back plate (8).

5. The novel chinese language and literature contrast explanation board of claim 1, characterized in that: the screw rod (13) is sleeved with a nut, and the rod body of the screw rod (13) between the rotating plate (2) and the nut is sleeved with a gasket.

6. The novel chinese language and literature contrast explanation board of claim 1, characterized in that: the both ends of horizontal pole (3) all are provided with the baffle, horizontal pole (3) are located the body of rod of arc (6) both sides and all overlap and are equipped with protective sheath (1).

7. The novel chinese language and literature contrast explanation board of claim 1, characterized in that: the bottom of riser (4) is provided with bottom plate (5), four corners of bottom plate (5) all are provided with square board.