CN210454243U

CN210454243U - Multifunctional ruler for mathematics teaching

Info

Publication number: CN210454243U
Application number: CN201921073848.1U
Authority: CN
Inventors: 王万禹
Original assignee: Chengdu Normal University
Current assignee: Chengdu Normal University
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-05-05
Anticipated expiration: 2029-07-10

Abstract

The utility model discloses a multi-functional ruler for mathematics teaching, including the blade, one side of blade is provided with the screw hole, the surface of blade is provided with trapezoidal spout, trapezoidal slider is installed to the inboard of trapezoidal spout, first spring post is installed to the upper end of trapezoidal slider, the spliced pole is installed to the upper end of first spring post, the first in command is installed to the upper end of spliced pole, the connecting rod is installed to the one end of spliced pole, trapezoidal fixture is installed to the lower extreme of connecting rod, the chalk is installed to the inboard of trapezoidal fixture, trapezoidal fixture passes through bolted connection with the chalk. The utility model discloses an installation threaded rod makes the device can carry out multi-functional equipment with the cooperation of second spring post through the threaded rod, does not receive the restriction when using, can slide through trapezoidal slider, only needs a hand to operate when using, and the chalk can not contact the human body when just operating, guarantees its safety.

Description

Multifunctional ruler for mathematics teaching

Technical Field

The utility model relates to a chi technical field is used in the mathematics teaching specifically is a multi-functional chi is used in mathematics teaching.

Background

With the rapid development of social economy, the ruler is also called a ruler, which is a tool for drawing line segments, particularly straight and measuring the length, the ruler is usually provided with scales for measuring the length, some rulers are provided with holes in special shapes such as letters or circles in the middle, so that a user can conveniently draw pictures, the rulers used in different occasions have different requirements and standards, if the required numerical value is more accurate, higher technology is needed, the ruler is manufactured by means of a machine, except for the requirement of accurate numerical value, the second key point is the quality of the numerical value, a protective film is generally burnt after the numerical value is carved, the third point is the selection of materials, the ruler is divided into plastic, metal and wood rulers at present, the plastic ruler is mainly used by general students for stationery, the metal ruler is more used in industry, and the wood ruler is mainly used for teaching.

However, the existing ruler for mathematics teaching cannot be assembled in a multifunctional way and is limited in use, a line drawing section needs two hands to operate, and chalk can contact a human body; therefore, the prior requirement is not met, and a multifunctional ruler for mathematics teaching is provided for the requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multi-functional ruler for mathematics teaching to solve the mathematics teaching that proposes in the above-mentioned background art and can not multi-functional equipment, receive the restriction when using, the setting-out section needs two hands to operate and the chalk can contact human scheduling problem.

In order to achieve the above object, the utility model provides a following technical scheme: a multifunctional ruler for mathematics teaching, which comprises a ruler body, wherein one side of the ruler body is provided with a threaded hole, the outer surface of the ruler body is provided with a trapezoidal sliding groove, the inner side of the trapezoidal sliding groove is provided with a trapezoidal sliding block, the upper end of the trapezoidal sliding block is provided with a first spring column, the upper end of the first spring column is provided with a connecting column, a first handle is arranged at the upper end of the connecting column, a connecting rod is arranged at one end of the connecting column, the lower end of the connecting rod is provided with a trapezoidal fixture, the inner side of the trapezoidal fixture is provided with chalk, the trapezoidal fixture is connected with the chalk through a bolt, one end of the trapezoidal chute is provided with a second handle, one end of the second handle is provided with a button, the lower end of the button is provided with a second spring post, the lower extreme of second spring post installs the threaded rod, the slide bar is installed to the one end of threaded rod, the slide bar passes through the spout with the blade and is connected.

Preferably, the lower end of the first handle is completely attached to the upper end of the connecting column, and the connecting column is fixed to the first handle through welding.

Preferably, the outer surface of the trapezoidal fixture is completely attached to the inner side of the bolt, and the trapezoidal fixture is in threaded connection with the bolt.

Preferably, the upper end of the threaded rod is completely attached to the lower end of the second spring column, and the threaded rod is connected with the second spring column through a clamping groove.

Preferably, a magnet is installed on the bottom surface of the ruler body, and the ruler body and the magnet are fixed through threads.

Preferably, the inner side of the ruler body is completely attached to the outer surface of the trapezoidal sliding block, and the ruler body is connected with the trapezoidal sliding block through the trapezoidal sliding groove.

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

1. the chalk fixing device has the advantages that the first handle is matched with the connecting column, so that the chalk fixing device is firmly connected through the connecting column, and the chalk can be fixed by the trapezoidal fixture through the matching of the trapezoidal fixture and the bolt, so that the chalk fixing device is convenient to use;

2. the utility model discloses an installation threaded rod and the cooperation of second spring post, make the device can carry out multi-functional equipment through the threaded rod, do not receive the restriction when using, through the cooperation of installation blade and magnet, adsorb at the surface of blackboard through magnet, make the device be convenient for operate when using, through the cooperation of installation blade and trapezoidal slider, make the device can slide through trapezoidal slider, only need a hand to operate when using, and the chalk can not contact the human body when operating, guarantees its safety.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

fig. 2 is a side view of the utility model in its entirety;

fig. 3 is a schematic view of a partial structure of the threaded rod of the present invention.

In the figure: 1. a ruler body; 2. a trapezoidal chute; 3. chalk; 4. a connecting rod; 5. a first handle; 6. connecting columns; 7. a trapezoidal slider; 8. a first spring post; 9. a second handle; 10. a button; 11. a chute; 12. a slide bar; 13. a threaded rod; 14. a trapezoidal fixture; 15. a bolt; 16. a threaded hole; 17. a second spring post.

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.

Referring to fig. 1 to fig. 3, the present invention provides an embodiment: a multifunctional ruler for mathematics teaching comprises a ruler body 1, wherein one side of the ruler body 1 is provided with a threaded hole 16, the outer surface of the ruler body 1 is provided with a trapezoidal sliding groove 2, the inner side of the trapezoidal sliding groove 2 is provided with a trapezoidal sliding block 7, the device can slide through the trapezoidal sliding block 7 by installing the cooperation of the ruler body 1 and the trapezoidal sliding block 7, only one hand is needed for operation when in use, and chalk 3 can not contact with a human body during operation to ensure the safety of the device, the upper end of the trapezoidal sliding block 7 is provided with a first spring column 8, the upper end of the first spring column 8 is provided with a connecting column 6, the upper end of the connecting column 6 is provided with a first handle 5, the device is firmly connected through the connecting column 6 by installing the cooperation of the first handle 5 and the connecting column 6, one end of the connecting column 6 is provided with a connecting rod 4, the lower end of the connecting rod, trapezoidal fixture 14 passes through bolt 15 with chalk 3 and is connected, cooperation through installation trapezoidal fixture 14 and bolt 15, make the device utilize trapezoidal fixture 14 can fix chalk 3, and is convenient for use, second handle 9 is installed to the one end of trapezoidal spout 2, button 10 is installed to the one end of second handle 9, second spring post 17 is installed to the lower extreme of button 10, threaded rod 13 is installed to the lower extreme of second spring post 17, cooperation through installation threaded rod 13 and second spring post 17, make the device can carry out multi-functional equipment through threaded rod 13, do not receive the restriction when using, slide bar 12 is installed to the one end of threaded rod 13, slide bar 12 passes through spout 11 with blade 1 and is connected.

Furthermore, the lower end of the first handle 5 is completely attached to the upper end of the connecting column 6, the connecting column 6 is fixed with the first handle 5 through welding, and the device is firmly connected through the connecting column 6 by matching the first handle 5 with the connecting column 6.

Further, the outer surface of the trapezoidal fixture 14 is completely attached to the inner side of the bolt 15, the trapezoidal fixture 14 is in threaded connection with the bolt 15, and the device is matched with the bolt 15 through the trapezoidal fixture 14, so that the chalk 3 can be fixed by the device through the trapezoidal fixture 14, and the use is convenient.

Further, the upper end of threaded rod 13 is laminated completely with the lower extreme of second spring post 17, and threaded rod 13 passes through the draw-in groove with second spring post 17 and is connected, and the device makes the device can carry out multi-functional equipment through threaded rod 13 through the cooperation of installation threaded rod 13 with second spring post 17, does not receive the restriction when using.

Further, magnet is installed to the bottom surface of blade 1, and blade 1 passes through the screw thread with magnet and fixes, and the device is through the cooperation of installation blade 1 with magnet, through the surface of magnet absorption blackboard for the device is convenient for operate when using.

Further, 1 inboard and trapezoidal slider 7's of blade surface laminating completely, blade 1 and trapezoidal slider 7 pass through trapezoidal spout 2 to be connected, and the device is through the cooperation of installation blade 1 with trapezoidal slider 7 for the device can slide through trapezoidal slider 7, only needs one hand to operate when using, and chalk 3 can not contact the human body during the operation, guarantees its safety.

The working principle is as follows: when the chalk fixing device is used, the using condition of each mechanism is checked, the chalk 3 is moved to a working area and is connected through the trapezoid clamping tool 14 and is fixed through the bolt 15, the chalk 3 can be fixed through the trapezoid clamping tool 14 through the matching of the trapezoid clamping tool 14 and the bolt 15, the chalk is convenient to use, the chalk is fixed on the outer surface of a blackboard through the magnet arranged on the bottom surface of the ruler body 1, the chalk is convenient to operate when the chalk is used, the chalk can slide through the trapezoid sliding block 7 through the matching of the ruler body 1 and the trapezoid sliding block 7, the chalk 3 can be operated by only one hand when the chalk is used, the chalk 3 does not contact with a human body when the chalk is operated, the safety of the chalk is ensured, the threaded rod 13 can slide out through the sliding rod 12, the chalk is fixed through the second spring column 17 arranged at the upper end of the threaded rod 13, and the matching of the threaded rod, the device can be assembled in multiple functions by means of the threaded rod 13, without being restricted in use.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a multi-functional ruler for mathematics teaching, includes blade (1), its characterized in that: one side of the ruler body (1) is provided with a threaded hole (16), the outer surface of the ruler body (1) is provided with a trapezoidal sliding groove (2), a trapezoidal sliding block (7) is installed on the inner side of the trapezoidal sliding groove (2), a first spring column (8) is installed at the upper end of the trapezoidal sliding block (7), a connecting column (6) is installed at the upper end of the first spring column (8), a first handle (5) is installed at the upper end of the connecting column (6), a connecting rod (4) is installed at one end of the connecting column (6), a trapezoidal fixture (14) is installed at the lower end of the connecting rod (4), chalk (3) is installed on the inner side of the trapezoidal fixture (14), the trapezoidal fixture (14) is connected with the chalk (3) through a bolt (15), a second handle (9) is installed at one end of the trapezoidal sliding groove (2), and a button (10) is installed at one end, second spring post (17) is installed to the lower extreme of button (10), threaded rod (13) are installed to the lower extreme of second spring post (17), slide bar (12) are installed to the one end of threaded rod (13), slide bar (12) are connected through spout (11) with blade (1).

2. The multifunctional ruler for mathematics teaching according to claim 1, wherein: the lower end of the first handle (5) is completely attached to the upper end of the connecting column (6), and the connecting column (6) is fixed with the first handle (5) through welding.

3. The multifunctional ruler for mathematics teaching according to claim 1, wherein: the outer surface of the trapezoidal fixture (14) is completely attached to the inner side of the bolt (15), and the trapezoidal fixture (14) is in threaded connection with the bolt (15).

4. The multifunctional ruler for mathematics teaching according to claim 1, wherein: the upper end of threaded rod (13) is laminated with the lower extreme of second spring post (17) completely, threaded rod (13) is connected through the draw-in groove with second spring post (17).

5. The multifunctional ruler for mathematics teaching according to claim 1, wherein: the bottom surface of the ruler body (1) is provided with a magnet, and the ruler body (1) and the magnet are fixed through threads.

6. The multifunctional ruler for mathematics teaching according to claim 1, wherein: the inner side of the ruler body (1) is completely attached to the outer surface of the trapezoidal sliding block (7), and the ruler body (1) is connected with the trapezoidal sliding block (7) through the trapezoidal sliding groove (2).