CN216627805U

CN216627805U - Convenient type teaching blackboard writing auxiliary positioning device

Info

Publication number: CN216627805U
Application number: CN202022933943.3U
Authority: CN
Inventors: 郑丽萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2022-05-31
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a convenient teaching blackboard writing auxiliary positioning device in the technical field of teaching tools, which comprises a fixed block, wherein the top of the fixed block is movably connected to the rear end of the bottom of a movable block, and the front end of the bottom of the movable block is fixedly connected to the top of a first telescopic rod. According to the blackboard-writing device, the fixed handle is pulled downwards to drive the lug and the connecting block to move, so that the first telescopic rod is pulled downwards to a proper position, then the fixed handle is pulled leftwards and rightwards to adjust the proper position of the moving block on the fixed block, the left and right positions of the first telescopic rod are convenient to adjust, the requirement of blackboard-writing auxiliary positioning is met, and then the second telescopic rods on the two sides of the connecting block are stretched outwards according to the requirement of blackboard-writing, so that a teacher takes a straight line where the second telescopic rods are located as reference when the teacher writes the blackboard-writing, and the first telescopic rods are continuously pulled downwards through the graduated scale, so that the line spacing of each line of the blackboard-writing is the same, the blackboard-writing is more tidy, the students can watch conveniently, and the teaching quality is improved.

Description

Convenient type teaching blackboard writing auxiliary positioning device

Technical Field

The utility model relates to the technical field of teaching aids, in particular to a convenient teaching blackboard-writing auxiliary positioning device.

Background

The blackboard writing refers to a way that a teacher writes characters and symbols on a blackboard during class to transmit teaching information and teach a teacher to learn a language activity, and the blackboard writing takes up a great teaching time in teaching of various departments; especially, in the process of language learning, such as English teaching, the blackboard writing helps students to analyze, understand and memorize, is beneficial to knowledge teaching and student intelligence development and capability culture, and is beneficial to activating classroom atmosphere and student memory knowledge.

The existing blackboard-writing process is that a teacher takes a book with one hand and takes another blackboard-writing with the other hand, which brings great difficulty and labor for teachers giving lessons, and the blackboard-writing is not neat and upright enough for teachers with insufficient experience, thus influencing students to watch learning and teaching effect. Therefore, the technical personnel in the field provide a convenient teaching blackboard writing auxiliary positioning device to solve the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a convenient teaching blackboard writing auxiliary positioning device to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

a convenient teaching blackboard-writing auxiliary positioning device comprises a fixed block, wherein the top of the fixed block is movably connected to the rear end of the bottom of a movable block, the front end of the bottom of the movable block is fixedly connected to the top of a first telescopic rod, the bottom of the first telescopic rod is fixedly connected to the top of a connecting block, two sides of the connecting block are both fixedly connected with second telescopic rods, the outer side of the left end of the second telescopic rod on the right side is inserted into the inner side of an adjusting block, the inner side of the rear end of the adjusting block is movably connected to the outer side of an adjusting rod, a clamping plate is fixedly connected to the top of the adjusting rod, bulges are uniformly arranged on the front surface of the clamping plate, clamping blocks are arranged at two ends of the top of the front surface of the clamping plate, protruding blocks are fixedly connected to two sides of the front surface of the adjusting block, the inner sides of the protruding blocks are both movably connected to two sides of a movable frame, and the upper end and the lower end of the movable frame are both fixedly connected to two ends of a fixed handle, the inner side of the top of the fixed handle is movably connected to the outer side of the movable pin, and a spring is arranged at the bottom of the front end of the movable pin.

As a further scheme of the utility model: the inboard both sides sliding connection through seting up spout and adjustable shelf of lug, the mounting groove has been seted up to the top position of adjustable shelf and fixed handle, the adjustable pin middle part is through installation round pin swing joint in the mounting groove, the shape of adjustable pin is the L type, the shrinkage pool with adjustable pin top matched with has been seted up to the bottom of movable block. Like this through the fixed handle of pulling can make the adjustable shelf upwards slide, and then can make first telescopic link shrink, make the top of removable pin and the shrinkage pool of movable block bottom combine together at last to reach constriction device portable purpose.

As a still further scheme of the utility model: the bottom and the rear end of the adjusting block are both in threaded connection with fixing bolts. Therefore, the position and the angle of the adjusting block on the second telescopic rod can be conveniently adjusted, and the position of the adjusting rod on the adjusting block can be conveniently adjusted, so that books with different sizes can be conveniently fixed by the clamping plates, the clamping blocks and the book placing grooves.

As a still further scheme of the utility model: first telescopic link comprises three part, and the arc wall has all been seted up in the front of every part, the inside of arc wall all is provided with the scale. When first telescopic link stretches out downwards like this, can effectively prevent that the inside of first telescopic link from taking place to rotate to can hold the distance that the second telescopic link descends through the scale, thereby be convenient for hold the line spacing of blackboard writing.

As a still further scheme of the utility model: the bottom of the fixed block is provided with a groove, the inner top wall of the groove is provided with a rubber strip, and the top of the fixed block is connected with the bottom of the moving block in a sliding mode through a prismatic table. Like this with the device through the recess card when blackboard top, can improve the stability of device to can adjust the position of movable block at the fixed block top, thereby be convenient for adjust the position of blackboard writing.

As a still further scheme of the utility model: the top of the adjusting block is fixedly connected with a book placing groove. Therefore, the bottom of the book is clamped in the book placing groove, so that the labor amount of a teacher holding the book is saved, and the teacher can conveniently write on the board.

As a still further scheme of the utility model: the number of the second telescopic rods is two, and the two second telescopic rods are respectively positioned on two sides of the connecting block. Therefore, the second telescopic rods extend towards two sides, and the positioning width during board writing can be increased.

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

1. according to the blackboard-writing device, the fixed handle is pulled downwards to drive the lug and the connecting block to move, so that the first telescopic rod is pulled downwards to a proper position, then the fixed handle is pulled leftwards and rightwards to adjust the proper position of the moving block on the fixed block, the left and right positions of the first telescopic rod are convenient to adjust, the requirement of blackboard-writing auxiliary positioning is met, the second telescopic rods on the two sides of the connecting block are pulled outwards according to the blackboard-writing requirement, a teacher uses a straight line where the second telescopic rods are located as a reference when writing on a blackboard, the first telescopic rods are continuously pulled downwards through the graduated scale, the line spacing of each line of the blackboard-writing is the same, the blackboard-writing is more orderly, the students can watch the blackboard-writing conveniently, and the teaching quality is improved.

2. According to the utility model, the top end of an opened book is placed between the clamping block and the clamping plate by pressing down the upper end of the clamping block, the top of the book is fixed by the action of the protrusion, the fixing bolt at the rear end is loosened, the adjusting rod is adjusted to a proper position, the adjusting rod is fixed by the fixing bolt at the rear end, the height of the clamping plate is adjusted, the bottom end of the book is placed in the book placing groove, and the position and the angle of the adjusting block on the second telescopic rod can be adjusted by loosening the fixing bolt at the bottom end of the adjusting block, so that the book is adjusted to a proper position and angle, the book can be conveniently watched by a teacher when the teacher writes, and the fatigue caused by holding the book for a long time is avoided.

Drawings

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

FIG. 2 is a schematic view of the structure A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the structure of B in FIG. 1 according to the present invention;

fig. 4 is a back structure diagram of the adjusting block of the present invention.

In the figure: 1. a fixed block; 2. a moving block; 3. a first telescopic rod; 4. connecting blocks; 5. a second telescopic rod; 6. a regulating block; 7. adjusting a rod; 8. a splint; 9. a protrusion; 10. a clamping block; 11. a bump; 12. a movable frame; 13. fixing a handle; 14. a movable pin; 15. a spring; 16. a rubber strip; 101. a groove; 102. a prismatic table; 301. a graduated scale; 601. fixing the bolt; 602. a book placing groove; 1101. a chute; 1301. and (4) mounting the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, in the embodiment of the utility model, a convenient teaching blackboard-writing auxiliary positioning device comprises a fixed block 1, the top of the fixed block 1 is movably connected to the rear end of the bottom of a movable block 2, the front end of the bottom of the movable block 2 is fixedly connected to the top of a first telescopic rod 3, the bottom of the first telescopic rod 3 is fixedly connected to the top of a connecting block 4, two sides of the connecting block 4 are both fixedly connected with second telescopic rods 5, the outer side of the left end of the second telescopic rod 5 on the right side is inserted into the inner side of an adjusting block 6, the inner side of the rear end of the adjusting block 6 is movably connected to the outer side of an adjusting rod 7, the top of the adjusting rod 7 is fixedly connected with a clamping plate 8, the front surface of the clamping plate 8 is uniformly provided with protrusions 9, two ends of the top of the front surface of the clamping plate 8 are both provided with clamping blocks 10, two sides of the front surface of the adjusting block 6 are both fixedly connected with convex blocks 11, the inner sides of the convex blocks 11 are both movably connected to two sides of a movable frame 12, the upper end and the lower end of the movable frame 12 are both fixedly connected to the two ends of the fixed handle 13, the inner side of the top of the fixed handle 13 is movably connected to the outer side of the movable pin 14, and a spring 15 is arranged at the bottom of the front end of the movable pin 14.

The inner side of the bump 11 is connected with two sides of the movable frame 12 in a sliding mode through a sliding groove 1101, mounting grooves 1301 are formed in the top portions of the movable frame 12 and the fixed handle 13, the middle portion of the movable pin 14 is movably connected into the mounting grooves 1301 through the mounting pins, the movable pin 14 is L-shaped, and concave holes matched with the top ends of the movable pins 14 are formed in the bottom of the movable block 2; therefore, the movable frame 12 can slide upwards by pulling the fixed handle 13, the first telescopic rod 3 can be contracted, and finally the top of the movable pin 14 is combined with the concave hole at the bottom of the movable block 2, so that the portable purpose of the contraction device is achieved. The bottom and the rear end of the adjusting block 6 are both in threaded connection with fixing bolts 601; therefore, the position and the angle of the adjusting block 6 on the second telescopic rod 5 and the position of the adjusting rod 7 on the adjusting block 6 can be conveniently adjusted, and books with different sizes can be conveniently fixed by the clamping plates 8, the clamping blocks 10 and the book placing grooves 602. The first telescopic rod 3 consists of three parts, the front surface of each part is provided with an arc-shaped groove, and the inside of each arc-shaped groove is provided with a graduated scale 301; when first telescopic link 3 stretches out downwards like this, can effectively prevent that the inside of first telescopic link 3 from taking place to rotate to can hold the distance that second telescopic link 5 descends through scale 301, thereby be convenient for hold the line spacing of blackboard writing.

The bottom of the fixed block 1 is provided with a groove 101, the inner top wall of the groove 101 is provided with a rubber strip 16, and the top of the fixed block 1 is connected with the bottom of the moving block 2 in a sliding manner through a prismatic table 102; like this with the device through recess 101 card when blackboard top, can improve the stability of device to can adjust the position of movable block 2 at fixed block 1 top, thereby be convenient for adjust the position of blackboard writing. The top of the adjusting block 6 is fixedly connected with a book placing groove 602; the bottom of the book is clamped in the book placing groove 602, so that the labor amount of the teacher holding the book is saved, and the teacher can conveniently write on the book. The number of the second telescopic rods 5 is two, and the two second telescopic rods are respectively positioned at two sides of the connecting block 4; therefore, the second telescopic rod 5 extends towards two sides, and the positioning width during board writing can be increased.

The working principle of the utility model is as follows: the device is clamped at the top of the blackboard through the groove 101, the rubber strip 16 is contacted with the top of the blackboard, the device is fixed on the blackboard, the fixed handle 13 is pulled downwards, the lug 11 and the connecting block 4 are pulled by the fixed handle 13, the first telescopic rod 3 is pulled downwards to a proper position, the fixed handle 13 is pulled leftwards and rightwards, the moving block 2 is moved to a proper position at the top of the fixed block 1, the left and right positions of the first telescopic rod 3 are conveniently adjusted, the upper end of the clamping block 10 is pressed, the top end of an opened book is placed between the clamping block 10 and the clamping plate 8, the top of the book is fixed through the action of the convex plate 9, the fixing bolt 601 at the rear end is loosened, the adjusting rod 7 is adjusted to a proper position, the adjusting rod 7 is fixed through the fixing bolt 601 at the rear end, the height of the clamping plate 8 is adjusted, and the bottom end of the book is placed in the book placing groove 602, and can adjust the position and the angle of regulating block 6 on second telescopic link 5 through loosening fixing bolt 601 of regulating block 6 bottom to adjust books to suitable position and angle, watch books when being convenient for like this teacher's blackboard-writing, avoided the teacher to hold books for a long time and cause fatigue.

According to the needs of blackboard writing with the outside extension of second telescopic link 5 of connecting block 4 both sides, the teacher uses the straight line at second telescopic link 5 place as the reference when blackboard writing like this to through watching scale 301, continue downwards the first telescopic link 3 of pulling, thereby make the line spacing of each line of blackboard writing the same, thereby make blackboard writing more neat, be convenient for student's watching, improved the quality of teaching. After finishing using, with the inboard shrink of second telescopic link 5 to the device, upwards stimulate fixed handle 13 again for fixed handle 13 slides to the top of lug 11, and upwards shrinks first telescopic link 3, thereby makes during the shrinkage pool of movable pin 14's top inserted movable block 2 bottoms, has reached the purpose of constriction device like this, from not influencing other teaching or from the blackboard take off the device, portable.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a convenient type teaching blackboard writing auxiliary positioning device, includes fixed block (1), its characterized in that: the top of the fixed block (1) is movably connected to the rear end of the bottom of the movable block (2), the front end of the bottom of the movable block (2) is fixedly connected to the top of the first telescopic rod (3), the bottom of the first telescopic rod (3) is fixedly connected to the top of the connecting block (4), the two sides of the connecting block (4) are fixedly connected with the second telescopic rod (5), the outer side of the left end of the second telescopic rod (5) on the right side is inserted into the inner side of the adjusting block (6), the inner side of the rear end of the adjusting block (6) is movably connected to the outer side of the adjusting rod (7), the top of the adjusting rod (7) is fixedly connected with a clamping plate (8), the front of the clamping plate (8) is uniformly provided with protrusions (9), the two ends of the front top of the clamping plate (8) are respectively provided with a clamping block (10), the two sides of the front of the adjusting block (6) are respectively fixedly connected with a convex block (11), the equal swing joint in inboard both sides at adjustable shelf (12) of lug (11), the equal fixed connection in both ends at the both ends of upper and lower both ends of adjustable shelf (12) is at the both ends of fixed handle (13), the inboard swing joint at fixed handle (13) top is in the outside of removable pin (14), the bottom of removable pin (14) front end is provided with spring (15).

2. The portable teaching blackboard writing auxiliary positioning device according to claim 1, wherein: the both sides sliding connection of spout (1101) and adjustable shelf (12) is seted up through seting up to the inboard of lug (11), mounting groove (1301) have been seted up to the top position of adjustable shelf (12) and fixed handle (13), install round pin swing joint in mounting groove (1301) is passed through at adjustable pin (14) middle part, the shape of adjustable pin (14) is the L type, the shrinkage pool with adjustable pin (14) top matched with is seted up to the bottom of movable block (2).

3. The portable teaching blackboard writing auxiliary positioning device according to claim 1, wherein: the bottom and the rear end of the adjusting block (6) are both in threaded connection with fixing bolts (601).

4. The portable teaching blackboard writing auxiliary positioning device according to claim 1, wherein: first telescopic link (3) comprise three parts, and the arc wall has all been seted up in the front of every part, the inside in arc wall all is provided with scale (301).

5. The portable teaching blackboard writing auxiliary positioning device according to claim 1, wherein: the bottom of the fixed block (1) is provided with a groove (101), the inner top wall of the groove (101) is provided with a rubber strip (16), and the top of the fixed block (1) is connected with the bottom of the moving block (2) in a sliding mode through a prismatic table (102).

6. The portable teaching blackboard writing auxiliary positioning device according to claim 1, wherein: the top of the adjusting block (6) is fixedly connected with a book placing groove (602).

7. The portable teaching blackboard writing auxiliary positioning device according to claim 1, wherein: the number of the second telescopic rods (5) is two, and the two second telescopic rods are respectively positioned on two sides of the connecting block (4).