CN215730420U

CN215730420U - Economic class teaching broken line statistics board

Info

Publication number: CN215730420U
Application number: CN202121764519.9U
Authority: CN
Inventors: 张轶璐
Original assignee: Hunan Industry Polytechnic
Current assignee: Hunan Industry Polytechnic
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-02-01
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses an economic teaching fold line statistical board, which comprises a statistical board body and insertion rods, wherein the top end and the bottom end of the statistical board body are respectively provided with a top board and a bottom board, a plurality of insertion rods are detachably arranged between the top board and the bottom board, the periphery of each insertion rod is movably connected with a plurality of sliding blocks used for indicating connection points, the top end of the bottom board is provided with two symmetrically arranged grooves, two winding posts with clamps are respectively arranged in the two grooves, an elastic rope used for indicating straight lines is wound and connected between each winding post and each sliding block, and the bottom end of the bottom board is connected with a supporting device with adjustable height; and a plurality of matched slots are formed in the adjacent side surfaces of the top plate and the bottom plate. According to the economic teaching broken line statistical board, the sliding block and the elastic rope can form a broken line graph, a teacher does not need to manually draw on a blackboard, and the economic teaching broken line statistical board can be repeatedly used, is convenient to use and has strong applicability.

Description

Economic class teaching broken line statistics board

Technical Field

The utility model belongs to the technical field of teaching aids for economy teaching, and particularly relates to an economy teaching broken line statistical board.

Background

Economics is the theory of the laws of production, circulation, distribution, and consumption that explores value. The economic research object and the natural science and other social science research objects are the same objective rule. A statistical graph showing the increase and decrease of the statistical quantity by the increase or decrease of the polyline is called a polyline statistical graph. The polyline statistical graph represents the increase and decrease change of data by the fluctuation of the polyline. The number of the data can be represented, and the increase and decrease change condition of the data can be reflected.

The line graph is often needed to be used for teaching in the economy teaching process, multimedia is mostly used for teaching under the better teaching condition, and some places lack of teaching resources require teachers to manually draw on a blackboard under most conditions.

The manual drawing of the line graph not only consumes time and labor and affects the whole teaching efficiency, but also can occupy a large area of the blackboard when drawing on the blackboard and affect the writing of other teaching contents.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an economic teaching fold line statistical board to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an economy class teaching broken line statistics board, includes statistics board body and inserted bar, the top and the bottom of statistics board body are provided with roof and bottom plate respectively, demountable installation has a plurality of inserted bar between roof and the bottom plate, the periphery swing joint of inserted bar has a plurality of to be used for pointing the slider of tie point, the recess that two symmetries set up is seted up on the top of bottom plate, all installs two wrapping posts that have the clamp in two recesses, the winding is connected with the stretch cord that is used for pointing the straight line between wrapping post and the slider, the bottom of bottom plate is connected with height-adjustable's strutting arrangement.

In a further embodiment, a plurality of matched slots are formed in the side faces, adjacent to the top plate and the bottom plate, of the top plate and the bottom plate, inserting rods are fixedly inserted between the slots corresponding to the top plate and the bottom plate, connecting grooves communicated with the inner walls of the slots are formed in the inner walls of the slots, springs are installed in the connecting grooves, one ends, extending to the slots, of the springs are connected with fixing plates, the fixing plates are arranged to be of arc-shaped plate-shaped structures, hemispherical inserting blocks extend from the two ends of each inserting rod, the inserting blocks are matched with the fixing plates, and the number of the inserting rods and the distance between the inserting rods can be adjusted.

In a further embodiment, a cavity is arranged in the sliding block, an electromagnet, a power supply and a normally closed switch are arranged in the cavity, the electromagnet, the power supply and the normally closed switch are electrically connected through wires, and a button of the normally closed switch is arranged at the bottom end of the sliding block and can adjust the position of the sliding block on the inserted rod.

In a further embodiment, strutting arrangement includes connecting block, telescopic link and backup pad, the bottom of bottom plate is connected with the connecting block that two symmetries set up, be provided with the telescopic link between connecting block and the backup pad, the bottom of backup pad is connected with the brake universal wheel through the supporting leg, can adjust the height and the position of statistics board body.

In a further embodiment, both sides face of statistics board body all is provided with the scale, and the both ends of scale are connected with roof and bottom plate respectively, the front end of statistics board body is seted up flutedly, and installs another scale in the recess, can mark the position of slider.

In a further embodiment, the front end of the sliding block is connected with a pulley, and the elastic rope is connected with the pulley in a winding mode, so that the smoothness of the elastic rope when the elastic rope is connected with the sliding block can be improved.

In a further embodiment, the bottom of roof is connected with the light, illumination problem when can solving the use.

The utility model has the technical effects and advantages that: according to the economic teaching broken line statistical board, the positions of the sliding blocks of different insertion rods are adjusted, so that the angle of the elastic rope between the sliding blocks is changed, the sliding blocks and the elastic rope form a broken line graph, a teacher does not need to draw on a blackboard, and the economic teaching broken line statistical board can be reused as a whole; the using number of the inserted rods and the distance between the inserted rods can be adjusted, so that the whole body can meet different using requirements; one or a plurality of sliding blocks can be connected outside the inserted link according to the use requirement, namely the whole can be used for drawing a line graph, and a plurality of line graphs can also be drawn for comparison; the button is pressed, the sliding block is moved to a proper position, and then the button is loosened, so that the sliding block can be fixed at the position, and the operation is convenient; the integral height can be changed by adjusting the telescopic rod, so that the operation of a teacher is facilitated, and the applicability is strong; according to the economic teaching broken line statistical board, the sliding block and the elastic rope can form a broken line graph, a teacher does not need to manually draw on a blackboard, and the economic teaching broken line statistical board can be repeatedly used, is convenient to use and has strong applicability.

Drawings

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

FIG. 2 is a schematic view of the structure of the insert rod of the present invention;

FIG. 3 is a schematic structural diagram of a slider according to the present invention;

FIG. 4 is an enlarged view of the structure A of FIG. 1 according to the present invention.

In the figure: statistics board body 1, inserted bar 2, roof 3, bottom plate 4, slider 5, wrapping post 6, stretch cord 7, fixed plate 8, inserted block 9, button 13, connecting block 14, telescopic link 15, backup pad 16, scale 17, pulley 18.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the utility model.

For convenience of drawing, as shown in fig. 1-3, the economic teaching fold line statistical board provided by the embodiment comprises a statistical board body 1 and insertion rods 2, wherein the top end and the bottom end of the statistical board body 1 are respectively connected with a top plate 3 and a bottom plate 4 through bolts, a plurality of insertion rods 2 are detachably mounted between the top plate 3 and the bottom plate 4, a plurality of sliding blocks 5 used for indicating connection points are movably connected to the periphery of the insertion rods 2, a cavity is arranged in each sliding block 5, an electromagnet, a power supply and a normally closed switch are embedded in each cavity, the electromagnet, the power supply and the normally closed switch are electrically connected through electric wires, a button 13 of the normally closed switch is mounted at the bottom end of each sliding block 5, the electromagnet, the power supply, the normally closed switch and the electric wires form a simple series circuit, the button 13 controls the series circuit to be connected or disconnected through the normally closed switch, and the power supply can be a battery convenient to replace, the side surface of the sliding block 5 is clamped and provided with an opening and closing cover convenient for replacing a battery, the inserted link 2 is a hollow metal rod, the hollow arrangement is favorable for lightening the whole quality and convenient for installing and disassembling the inserted link 2, the inserted link 2 is set to be the metal rod so that the sliding block 5 is fixedly connected with the inserted link 2 through an electromagnet, the inserted link 2 is closed and opened when a button 13 is pressed to disconnect a series circuit, the electromagnet is powered off, at the moment, the electromagnet is in contact with the inserted link 2 through electromagnetic force, the button 13 is loosened to close and close the series circuit to be communicated, the electromagnet is powered on, the sliding block 5 is fixedly connected with the inserted link 2 through the electromagnetic force generated between the electromagnet and the inserted link 2, the top end of the bottom plate 4 is provided with two symmetrically arranged grooves, two wrapping posts 6 with clamps are arranged in the two grooves through screws, an elastic rope 7 used for indicating a straight line is wound between the wrapping posts 6 and the sliding block 5, one end of the elastic rope 7 is fixedly connected with one winding post 6 through a hoop, and the other end of the elastic rope 7 is sequentially wound and connected with the pulley 18 of the sliding block 5 and then fixedly connected with the other winding post 6 through the hoop; in the teaching process, a plurality of line drawings are usually needed for comparison teaching, the periphery of the winding post 6 is connected with a plurality of elastic ropes 7 with different colors, the front end of the sliding block 5 is connected with a pulley 18, the elastic ropes 7 are connected with the pulley 18 in a winding manner, the pulley slips 18 of the sliding block 5 positioned on the same plunger 2 are not on the same vertical plane, that is, the elastic ropes 7 of the sliding block 5 positioned on the same plunger 2 are not crossed when a plurality of line drawings are drawn, for obvious comparison, the colors of the elastic ropes 7 wound and connected with the pulley slips 18 of the sliding block 5 positioned on the same plunger 2 are not the same, and the color difference contrast is clear.

In order to adjust the number of the inserted rods 2 and the distance between the inserted rods 2 conveniently, as shown in fig. 1 and 4, the bottom end of the bottom plate 4 is connected with a supporting device with adjustable height, the side surfaces of the top plate 3 adjacent to the bottom plate 4 are respectively provided with a plurality of matched slots, the inserted rods 2 are fixedly inserted between the slots corresponding to the top plate 3 and the bottom plate 4, the inner walls of the slots are provided with connecting slots communicated with the slots, springs are welded in the connecting slots, one ends of the springs extending to the slots are welded with fixing plates 8, the fixing plates 8 are of arc-shaped plate structures, hemispherical insertion blocks 9 are integrally formed at two ends of the inserted rods 2, the insertion blocks 9 are matched with the fixing plates 8, the diameter of the insertion blocks 9 is consistent with that of the inserted rods 2, the diameter of the inserted rods 2 is consistent with that of the sliding blocks 5, and the sliding blocks 5 are conveniently sleeved on the periphery of the inserted rods 2.

In order to adjust the height of statistics board body 1, simultaneously in order to make things convenient for the bulk movement, as shown in fig. 1, strutting arrangement includes connecting block 14, telescopic link 15 and backup pad 16, there are two connecting blocks 14 that the symmetry set up bottom plate 4 through bolted connection, the welding has telescopic link 15 between connecting block 14 and the backup pad 16, the bottom of backup pad 16 is connected with the brake universal wheel through the supporting leg, backup pad 16 is the great metal sheet of density (or the built-in cavity of backup pad 16 installs the weight plate), and holistic stability can be ensured to backup pad 16's quality promptly.

According to the working principle, before the economic teaching broken line statistical board is used, the brake universal wheels are released to push the whole body to a corresponding teaching point, then the brake universal wheels are locked, a proper number of sliding blocks 5 are sleeved on the periphery of the inserted rod 2 according to specific conditions, the inserted rod 2 is inserted into corresponding slots, and then the elastic ropes 7 with different colors are connected with the pulleys 18 of the corresponding sliding blocks 5 in a winding manner; when the inserted bar 2 is installed, the inserted block 9 at one end of the inserted bar 2 is inserted into the fixing plate 8 of the slot of the bottom plate 4, then the spring is pressed downwards to enable the inserted block 9 at the top end of the inserted bar 2 to be inserted into the slot of the top plate 3, finally the inserted bar 2 is loosened, after the inserted bar 2 is loosened, the springs of the top plate 3 and the bottom plate 4 recover to be original lengths, when the inserted bar 2 is disassembled, the inserted bar 2 is only required to be pulled downwards to enable the inserted block 9 at the top end of the inserted bar 2 to slide out of the slot, and then the inserted bar can be taken down; when needing to draw, press button 13 remove slider 5 to inserted bar 2 relevant position after loosen button 13 can, slider 5 and stretch cord 7 constitute corresponding broken line graph, can adjust telescopic link 15 according to the drawing demand in the drawing process, and then adjust the height of statistics board body 1.

Finally, it should be noted that: the foregoing is merely a preferred embodiment of the present invention and is not intended to limit the present invention.

Claims

1. The utility model provides an economy class teaching broken line statistics board, includes statistics board body (1) and inserted bar (2), its characterized in that: statistics top and bottom of board body (1) are provided with roof (3) and bottom plate (4) respectively, demountable installation has a plurality of inserted bar (2) between roof (3) and bottom plate (4), the periphery swing joint of inserted bar (2) has slider (5) that a plurality of is used for referring to the tie point, the recess that two symmetries set up is seted up on the top of bottom plate (4), all installs two wrapping posts (6) that have the clamp in two recesses, the winding is connected with between wrapping post (6) and slider (5) and is used for referring to sharp stretch cord (7), the bottom of bottom plate (4) is connected with height-adjustable's strutting arrangement.

2. The economic teaching fold line statistical board according to claim 1, characterized in that: a plurality of matching slots are formed in the side face, adjacent to the top plate (3) and the bottom plate (4), of the top plate (3) and the side face, corresponding to the bottom plate (4), of the bottom plate, inserting rods (2) are fixedly inserted between the corresponding slots, communicating connecting grooves are formed in the inner walls of the slots, springs are installed in the connecting grooves, one ends, extending to the slots, of the springs are connected with fixing plates (8), the fixing plates (8) are arranged to be of arc-shaped plate structures, hemispherical inserting blocks (9) are extended at the two ends of the inserting rods (2), and the inserting blocks (9) are matched with the fixing plates (8).

3. The economic teaching fold line statistical board according to claim 1, characterized in that: the novel electric iron is characterized in that a cavity is arranged in the sliding block (5), an electromagnet, a power supply and a normally closed switch are arranged in the cavity, the electromagnet, the power supply and the normally closed switch are electrically connected through wires, and a button (13) of the normally closed switch is arranged at the bottom end of the sliding block (5).

4. The economic teaching fold line statistical board according to claim 1, characterized in that: the supporting device comprises connecting blocks (14), telescopic rods (15) and a supporting plate (16), the bottom end of the bottom plate (4) is connected with the connecting blocks (14) which are symmetrically arranged, the telescopic rods (15) are arranged between the connecting blocks (14) and the supporting plate (16), and the bottom end of the supporting plate (16) is connected with a brake universal wheel through supporting legs.

5. The economic teaching fold line statistical board according to claim 1, characterized in that: both sides face of statistics board body (1) all is provided with scale (17), and the both ends of scale (17) are connected with roof (3) and bottom plate (4) respectively, the front end of statistics board body (1) is seted up flutedly, and installs another scale (17) in the recess.

6. The economic teaching fold line statistical board according to claim 1, characterized in that: the front end of the sliding block (5) is connected with a pulley (18), and the elastic rope (7) is wound with the pulley (18).

7. The economic teaching fold line statistical board according to claim 1, characterized in that: the bottom end of the top plate (3) is connected with a lighting lamp.