CN214420082U

CN214420082U - Economic statistics teaching tool

Info

Publication number: CN214420082U
Application number: CN202120225063.2U
Authority: CN
Inventors: 卢允照; 董艳萍
Original assignee: Fuzhou College of Foreign Studies and Trade
Current assignee: Fuzhou College of Foreign Studies and Trade
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-10-19
Anticipated expiration: 2031-01-27

Abstract

The utility model relates to the technical field of economic teaching tools, and discloses an economic statistics teaching tool, which comprises a mounting frame, wherein the back surface of the mounting frame is fixedly provided with a first connecting plate, the right side of the first connecting plate is fixedly provided with a second connecting plate, the right side of the inner cavity of the mounting frame is rotatably provided with a first threaded rod, the outer surface of the first threaded rod is provided with a first sliding block through threads, the economic statistics teaching tool drives the first threaded rod and the second threaded rod to rotate through the cooperation of a first bevel gear, a second bevel gear, a third bevel gear and a fourth bevel gear respectively by rotating the first rotating shaft and the second rotating shaft, and the first threaded rod and the second threaded rod drive a first ruler strip and a second ruler strip to move through the first sliding block and the second sliding block respectively, thereby realizing the accurate drawing of economic statistics, and greatly improving the drawing accuracy, meanwhile, drawing by a user is facilitated.

Description

Economic statistics teaching tool

Technical Field

The utility model relates to an economy teaching tool technical field specifically is an economy statistics teaching tool.

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. The economy is creation, transformation and realization of value, the similar economic activities are creation, transformation and realization of value, the activities meeting the needs of human material culture and life are provided, in the economic statistics teaching, the teaching mapping is particularly important, the students can understand the teaching content more easily by drawing the statistical chart, and along with the development of the society, different types of economic statistics teaching tools appear in the market.

When using, the existing economic statistics teaching tool has high requirement on the verticality of the line in the drawing process, the existing teaching tool is troublesome in drawing, cannot accurately draw the required length, and is unstable in fixing the ruler and easy to cause drawing errors.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an economic statistics teaching tool has possessed drawing and more accurate drawing that can the portable, has also prevented advantages such as the error that the drawing produced simultaneously, has solved the inconvenient and inaccuracy of drawing of present teaching tool, and the fixed unstability of chi strip causes the problem of drawing error simultaneously.

(II) technical scheme

In order to solve the technical problem, the utility model provides a following technical scheme: an economic statistics teaching tool comprises a mounting frame, wherein a first connecting plate is fixedly mounted on the back surface of the mounting frame, a second connecting plate is fixedly mounted on the right side of the first connecting plate, a first threaded rod is rotatably mounted on the right side of an inner cavity of the mounting frame, a first sliding block is mounted on the outer surface of the first threaded rod in a threaded manner, a first bevel gear is fixedly mounted on the outer surface of the first threaded rod and behind the first sliding block, a first rotating shaft is rotatably mounted on the inner cavity of the mounting frame and behind the first threaded rod, the top end of the first rotating shaft penetrates through the mounting frame and extends to the outside of the mounting frame, a second bevel gear is fixedly mounted on the outer surface of the first rotating shaft, a first gear is fixedly mounted on the outer surface of the first rotating shaft and above the second bevel gear, a first ruler strip is fixedly mounted on the right side of the first sliding block, and the right side of the first ruler strip penetrates through the mounting frame and extends to the outside of the mounting frame, the right side of the first ruler strip is connected with the left side of the second connecting plate in a sliding way, the front surface of the inner cavity of the mounting rack is rotatably provided with a second threaded rod, a second sliding block is arranged on the outer surface of the second threaded rod in a threaded manner, a third bevel gear is fixedly arranged on the outer surface of the second threaded rod and positioned on the right side of the second sliding block, a second rotating shaft is rotatably arranged in the inner cavity of the mounting frame and positioned on the right side of the second threaded rod, the top end of the second rotating shaft penetrates through the mounting frame and extends to the outside of the mounting frame, a fourth bevel gear is fixedly arranged on the outer surface of the second rotating shaft, a second gear is fixedly arranged on the outer surface of the second rotating shaft and above the fourth bevel gear, no. two chi strips are fixedly mounted on the back face of the No. two sliding blocks, the front ends of the No. two chi strips penetrate through the mounting frame and extend to the outside of the mounting frame, and the back face of the No. two chi strips is connected with the front face of the connecting plate in a sliding mode.

Preferably, the outer surface of the first bevel gear is meshed with the outer surface of the second bevel gear, and the outer surface of the third bevel gear is meshed with the outer surface of the fourth bevel gear.

Preferably, the front of the first connecting plate is provided with a first scale groove, and the left side of the second connecting plate is provided with a second scale groove.

Preferably, the inner cavity of the mounting frame and the rear part of the gear rotate completely to form a clamping block, and a spring is fixedly mounted on the front surface of the clamping block.

Preferably, the right side slidable mounting of mounting bracket has a push rod, the right side of push rod runs through the mounting bracket and extends to the inside of mounting bracket.

Preferably, the inner chamber of mounting bracket and the right-hand rotation that is located No. two gears install No. two joint blocks, No. two joint block's positive fixed mounting has No. two springs, the positive slidable mounting of mounting bracket has No. two push rods, the front end of No. two push rods runs through the mounting bracket and extends to the inside of mounting bracket.

(III) advantageous effects

Compared with the prior art, the utility model provides an economic statistics teaching tool possesses following beneficial effect: this economic statistics teaching tool accessible rotates a pivot and No. two pivots, a pivot and No. two pivots are respectively through a bevel gear, No. two bevel gears, No. three bevel gears and No. four bevel gears's cooperation drives a threaded rod and No. two threaded rods rotate, a threaded rod and No. two threaded rods drive a chi strip and No. two chi strips through a slider and No. two sliders respectively and remove, the joint of rethread a joint piece and No. two joint pieces to a gear and No. two gears prevents a pivot and No. two pivot reversals, the cooperation of rethread push rod and No. two push rods, the realization is fixed to the stability of chi strip.

1. This economic statistics teaching tool, through rotating a pivot and No. two pivots, a pivot and No. two pivots are respectively through a bevel gear, No. two bevel gears, No. three bevel gears and No. four bevel gears's cooperation drives a threaded rod and No. two threaded rods rotate, a threaded rod and No. two threaded rods drive a chi strip and No. two chi strips through a slider and No. two sliders respectively and remove, thereby realized the accurate drawing to economic statistics, the accuracy nature of drawing has been improved greatly, the user of also being convenient for simultaneously draws.

2. This economic statistics teaching tool through a joint piece and No. two joint pieces to the joint of a gear and No. two gears, prevents a pivot and No. two pivot reversals, and the cooperation of rethread push rod and No. two push rods realizes fixing the stability of chi strip, has improved the accuracy of drawing, has been convenient for to the fixed of chi strip, has reduced the error of drawing.

Drawings

Fig. 1 is a front view of the internal structure of the present invention.

Fig. 2 is a top view of the internal structure of the present invention.

Fig. 3 is a side view of the internal structure of the present invention.

In the figure: 1. a mounting frame; 2. a first connecting plate; 3. a second connecting plate; 4. a first threaded rod; 5. a first sliding block; 6. a first bevel gear; 7. a first rotating shaft; 8. a second bevel gear; 9. a first gear; 10. a first ruler strip; 11. a second threaded rod; 12. a second sliding block; 13. a third bevel gear; 14. a second rotating shaft; 15. a fourth bevel gear; 16. a second gear; 17. a second ruler strip; 18. a first clamping block; 19. a first spring; 20. a first push rod; 21. a second clamping block; 22. a second spring; 23. push rod No. two.

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. 1-3, an economic statistics teaching tool comprises a mounting frame 1, a first connecting plate 2 is fixedly mounted on the back surface of the mounting frame 1, a second connecting plate 3 is fixedly mounted on the right side of the first connecting plate 2, a first threaded rod 4 is rotatably mounted on the right side of an inner cavity of the mounting frame 1, a first slider 5 is threadedly mounted on the outer surface of the first threaded rod 4, a first bevel gear 6 is fixedly mounted on the outer surface of the first threaded rod 4 and positioned behind the first slider 5, a first rotating shaft 7 is rotatably mounted in the inner cavity of the mounting frame 1 and positioned behind the first threaded rod 4, the top end of the first rotating shaft 7 penetrates through the mounting frame 1 and extends to the outside of the mounting frame 1, a second bevel gear 8 is fixedly mounted on the outer surface of the first rotating shaft 7, a first gear 9 is fixedly mounted on the outer surface of the first rotating shaft 7 and positioned above the second bevel gear 8, and a first ruler strip 10 is fixedly mounted on the right side of the first slider 5, the right side of the first ruler strip 10 penetrates through the mounting frame 1 and extends to the outside of the mounting frame 1, the right side of the first ruler strip 10 is in sliding connection with the left side of the second connecting plate 3, a second threaded rod 11 is rotatably mounted on the front side of an inner cavity of the mounting frame 1, a second sliding block 12 is mounted on the outer surface of the second threaded rod 11 in a threaded manner, a third bevel gear 13 is fixedly mounted on the outer surface of the second threaded rod 11 and positioned on the right side of the second sliding block 12, a second rotating shaft 14 is rotatably mounted in the inner cavity of the mounting frame 1 and positioned on the right side of the second threaded rod 11, the top end of the second rotating shaft 14 penetrates through the mounting frame 1 and extends to the outside of the mounting frame 1, a fourth bevel gear 15 is fixedly mounted on the outer surface of the second rotating shaft 14 and positioned above the fourth bevel gear 15, a second ruler strip 17 is fixedly mounted on the back side of the second sliding block 12, the front end of the second ruler strip 17 penetrates through the mounting frame 1 and extends to the outside of the mounting frame 1, the back surface of a second ruler strip 17 is connected with the front surface of a first connecting plate 2 in a sliding manner, the outer surface of a first bevel gear 6 is meshed with the outer surface of a second bevel gear 8, the outer surface of a third bevel gear 13 is meshed with the outer surface of a fourth bevel gear 15, the front surface of the first connecting plate 2 is provided with a first scale groove, the left side of a second connecting plate 3 is provided with a second scale groove, a first clamping block 18 is arranged in the inner cavity of the mounting frame 1 and is positioned behind the first gear 9 in a rotating manner, a first spring 19 is fixedly arranged on the front surface of the first clamping block 18, a first push rod 20 is slidably arranged on the right side of the mounting frame 1, the right side of the first push rod 20 penetrates through the mounting frame 1 and extends into the mounting frame 1, a second clamping block 21 is rotatably arranged in the inner cavity of the mounting frame 1 and is positioned on the right side of the second gear 16, a second spring 22 is fixedly arranged on the front surface of the second clamping block 21, and a second push rod 23 is slidably arranged on the front surface of the mounting frame 1, the front end of the second push rod 23 penetrates through the mounting frame 1 and extends to the inside of the mounting frame 1.

The working principle is as follows: firstly, a user puts a mounting frame 1 on paper to be drawn, then rotates a first rotating shaft 7, the first rotating shaft 7 drives a second bevel gear 8 to rotate, the second bevel gear 8 drives a first threaded rod 4 to rotate through a first bevel gear 6, the first threaded rod 4 drives a first sliding block 5 to move back and forth, the first sliding block 5 drives a first ruler strip 10 to slide on a second connecting plate 3, then the second rotating shaft 14 drives a fourth bevel gear 15 to rotate, the fourth bevel gear 15 drives a second threaded rod 11 to rotate through a third bevel gear 13, the second threaded rod 11 drives a second sliding block 12 to move left and right, the second sliding block 12 drives a second ruler strip 17 to move left and right, so that accurate line drawing of lines is realized, when the first rotating shaft 7 and the second rotating shaft 14 are rotated, a first clamping block 18 and a second clamping block 21 are respectively clamped with the first gear 9 and the second gear 16, prevent the reversal of a pivot 7 and No. two pivot 14, make when needs the reversal and promote a push rod 20 and No. two push rods 23, make a joint piece 18 and No. two joint pieces 21 rotate, make a joint piece 18 and No. two joint pieces 21 break away from a gear 9 and No. two gears 16, rotate pivot 7 and No. two pivot 14 again to the realization is to No. one chi strip 10 and No. two chi strips 17's fixed, prevents that the chi strip from sliding, makes the chi strip more stable.

In conclusion, the economic statistics teaching tool can rotate the first rotating shaft 7 and the second rotating shaft 14, the first rotating shaft 7 and the second rotating shaft 14 respectively drive the first threaded rod 4 and the second threaded rod 11 to rotate through the cooperation of the first bevel gear 6, the second bevel gear 8, the third bevel gear 13 and the fourth bevel gear 15, the first threaded rod 4 and the second threaded rod 11 respectively drive the first ruler strip 10 and the second ruler strip 17 to move through the first sliding block 5 and the second sliding block 12, the first clamping block 18 and the second clamping block 21 are used for clamping the first gear 9 and the second gear 16 to prevent the first rotating shaft 7 and the second rotating shaft 14 from reversing, and the ruler strips are stably fixed through the cooperation of the first push rod 20 and the second push rod 23.

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 an economic statistics teaching tool, includes mounting bracket (1), its characterized in that: the back of the mounting rack (1) is fixedly provided with a first connecting plate (2), the right side of the first connecting plate (2) is fixedly provided with a second connecting plate (3), the right side of the inner cavity of the mounting rack (1) is rotated to be provided with a first threaded rod (4), the outer surface of the first threaded rod (4) is provided with a first slider (5) in a threaded manner, the outer surface of the first threaded rod (4) is fixedly provided with a first bevel gear (6) at the rear part of the first slider (5), the inner cavity of the mounting rack (1) is rotatably provided with a first rotating shaft (7) at the rear part of the first threaded rod (4), the top end of the first rotating shaft (7) penetrates through the mounting rack (1) and extends to the outer part of the mounting rack (1), the outer surface of the first rotating shaft (7) is fixedly provided with a second bevel gear (8), the outer surface of the first rotating shaft (7) is fixedly provided with a first gear (9) at the upper part of the second bevel gear (8), the right side of the first sliding block (5) is fixedly provided with a first ruler strip (10), the right side of the first ruler strip (10) penetrates through the mounting frame (1) and extends to the outside of the mounting frame (1), the right side of the first ruler strip (10) is connected with the left side of the second connecting plate (3) in a sliding manner, the front of the inner cavity of the mounting frame (1) is rotatably provided with a second threaded rod (11), the outer surface of the second threaded rod (11) is provided with a second sliding block (12) in a threaded manner, the outer surface of the second threaded rod (11) is fixedly provided with a third bevel gear (13) on the right side of the second sliding block (12), the inner cavity of the mounting frame (1) is rotatably provided with a second rotating shaft (14) on the right side of the second threaded rod (11), the top end of the second rotating shaft (14) penetrates through the mounting frame (1) and extends to the outside of the mounting frame (1), the outer surface of the second rotating shaft (14) is fixedly provided with a fourth bevel gear (15), the outer surface of No. two pivot (14) and the top fixed mounting that is located No. four bevel gears (15) have No. two gears (16), the back fixed mounting of No. two sliders (12) has No. two chi strips (17), the front end of No. two chi strips (17) runs through mounting bracket (1) and extends to the outside of mounting bracket (1), the back of No. two chi strips (17) and the front sliding connection of a connecting plate (2).

2. The economic statistics teaching tool of claim 1, wherein: the outer surface of the first bevel gear (6) is meshed with the outer surface of the second bevel gear (8), and the outer surface of the third bevel gear (13) is meshed with the outer surface of the fourth bevel gear (15).

3. The economic statistics teaching tool of claim 1, wherein: a first scale groove is formed in the front face of the first connecting plate (2), and a second scale groove is formed in the left side of the second connecting plate (3).

4. The economic statistics teaching tool of claim 1, wherein: the inner chamber of mounting bracket (1) just is located the rear rotation of a gear (9) and completely has a joint piece (18), the front fixed mounting of a joint piece (18) has a spring (19).

5. The economic statistics teaching tool of claim 1, wherein: the right side slidable mounting of mounting bracket (1) has a push rod (20), the right side of push rod (20) runs through mounting bracket (1) and extends to the inside of mounting bracket (1).

6. The economic statistics teaching tool of claim 1, wherein: the inner chamber of mounting bracket (1) and the right-hand rotation that is located No. two gears (16) install No. two joint piece (21), the positive fixed mounting of No. two joint piece (21) has No. two spring (22), the front slidable mounting of mounting bracket (1) has No. two push rod (23), the front end of No. two push rod (23) runs through mounting bracket (1) and extends to the inside of mounting bracket (1).