CN215705370U

CN215705370U - A instrument chi for mathematical education

Info

Publication number: CN215705370U
Application number: CN202122321354.4U
Authority: CN
Inventors: 杨春燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-25
Filing date: 2021-09-25
Publication date: 2022-02-01
Anticipated expiration: 2031-09-25

Abstract

The utility model relates to the technical field of teaching tools, in particular to a tool ruler for mathematical teaching, which comprises a measuring ruler, a rotating disc and an angle scale, wherein the inner side of the measuring ruler is connected with a sliding block in a sliding manner, the inner side of the sliding block is connected with a threaded clamping plate in a sliding manner, the upper side of the threaded clamping plate is spirally connected with an elastic nut, the left side of the measuring ruler is rotatably connected with a sucking disc, the upper end of the sucking disc is fixedly connected with an angle pointer, the inner side of the angle pointer is spirally connected with a first threaded rod, and the lower end of the first threaded rod is fixedly connected with a closing block. According to the chalk line drawing device, the threaded clamping plate can move by means of rotation of the loosening nut through the arranged sliding block, the threaded clamping plate and the loosening nut, so that chalk can be fixedly clamped by the threaded clamping plate, meanwhile, the sliding block can linearly move in the measuring scale through movement of the sliding block, further, the chalk can be linearly drawn, and chalk fixing and chalk line drawing of the tool ruler are facilitated.

Description

A instrument chi for mathematical education

Technical Field

The utility model relates to the technical field of teaching aids, in particular to a tool ruler for mathematical teaching.

Background

Along with the development of society, the application to the teaching tool chi is more extensive, and the teaching tool chi is the appurtenance that the setting-out was handled among the teaching process, can promote the effect of figure drawing, makes the figure of drawing more directly perceived, can promote mathematical education quality. The teaching tool ruler has an angle ruler, a measuring ruler, a set square and the like, and can be used for drawing figures according to teaching requirements.

In the prior art, a tool ruler for mathematical education is relatively fixed and single in use, chalk cannot be fixed and used, and the chalk cannot be moved quickly in the line drawing process, so that the line drawing use of the tool ruler is influenced; and when using the instrument chi, the function is more single, can not in time draw to circular or fixed angle to influence mathematical education quality, and influence teaching speed, be unfavorable for the teaching setting-out and use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tool ruler for mathematical education, which solves the problems in the prior art.

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

the utility model provides an instrument chi for mathematical education, includes dipperstick, rolling disc and angle scale, the inboard sliding connection of dipperstick has the slider, the inboard sliding connection of slider has the screw thread splint, the upside screwed connection of screw thread splint has the elasticity nut, the left side of dipperstick is rotated and is connected with the sucking disc, the upper end fixedly connected with angle pointer of sucking disc, the inboard screwed connection of angle pointer has first threaded rod, screwed connection between first threaded rod and the sucking disc, the lower extreme fixedly connected with closing block of first threaded rod, sliding connection between closing block and the sucking disc, the upper end fixedly connected with rolling disc of first threaded rod, sliding connection between rolling disc and the angle pointer.

Preferably, the outside fixedly connected with slide bar of screw splint, sliding connection between slide bar and the slider, the outside surface of slide bar is covered with the spring outward, the outer end fixedly connected with limiting plate of slide bar, sliding connection between limiting plate and the slider.

Preferably, the left side of slider threaded connection has the second threaded rod, the piece is turned round to the upper end fixedly connected with of second threaded rod, the lower extreme fixedly connected with kicking block of second threaded rod, the lower extreme sliding connection of kicking block has the ejector pin, sliding connection between ejector pin and the slider, the outer end fixedly connected with elasticity stopper of ejector pin, sliding connection between elasticity stopper and the slider, sliding connection between elasticity stopper and the dipperstick.

Preferably, the left side wall of the sucking disc is provided with an air leakage hole.

Preferably, the upper end of the left side of the measuring scale is fixedly connected with an angle scale, and the angle scale is rotatably connected with the angle pointer.

Preferably, the number of the threaded clamping plates is four, and the threaded clamping plates are symmetrically arranged about the central axis of the turnbuckle nut.

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

1. according to the chalk line drawing device, the threaded clamping plate can move by means of rotation of the loosening nut through the arranged sliding block, the threaded clamping plate and the loosening nut, so that chalk can be fixedly clamped by the threaded clamping plate, meanwhile, the sliding block can linearly move in the measuring scale through movement of the sliding block, and further the chalk can be linearly drawn for line drawing, so that chalk fixing and chalk line drawing of a tool ruler are facilitated;

2. according to the utility model, through the arrangement of the sucker, the angle pointer and the first threaded rod, the tool ruler can be fixed on the surface of the blackboard under the action of the sucker, the sucker can be tightly sucked or air can be relaxed under the rotating action of the first threaded rod, the sucker can be conveniently detached and used, and meanwhile, through the action of the angle pointer, the sucker can be used for circular or fixed-angle drawing through the rotation of the measuring scale after being fixed, so that the functionality of the tool ruler is improved.

Drawings

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

FIG. 2 is a right sectional view of the mounting structure for the slide, threaded clamp and jam nut of the present invention;

FIG. 3 is a left sectional view of the mounting structure of the slider, the second threaded rod and the elastic limiting block of the present invention;

fig. 4 is a sectional view showing an installation structure of the suction cup, the angle indicator and the rotary disk according to the present invention.

In the figure: 1. measuring a scale; 2. a slider; 3. a threaded splint; 4. loosening and tightening the nut; 5. a suction cup; 6. an angle pointer; 7. a first threaded rod; 8. a closing block; 9. rotating the disc; 10. a slide bar; 11. a spring; 12. a limiting plate; 13. a second threaded rod; 14. twisting the block; 15. a top block; 16. a top rod; 17. a stopper is loosened and tightened; 18. air leakage holes; 19. and (5) an angle scale.

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.

In embodiment 1, please refer to fig. 1 to 4, the present invention provides a technical solution: a tool ruler for mathematical education comprises a measuring ruler 1, a rotating disc 9 and an angle scale 19, wherein the inner side of the measuring ruler 1 is connected with a sliding block 2 in a sliding mode, the inner side of the sliding block 2 is connected with a threaded clamping plate 3 in a sliding mode, the upper side of the threaded clamping plate 3 is connected with a turnbuckle 4 in a spiral mode, the threaded clamping plate 3 can fix chalk through the rotating action of the turnbuckle 4, the chalk can be used for drawing in a straight line through moving the sliding block 2, the left side of the measuring ruler 1 is connected with a sucking disc 5 in a rotating mode, one end of the tool ruler is convenient to fix, the upper end of the sucking disc 5 is fixedly connected with an angle pointer 6, the rotating angle of the measuring ruler 1 can be measured, the inner side of the angle pointer 6 is connected with a first threaded rod 7 in a spiral mode, the lower end of the first threaded rod 7 is fixedly connected with a closing block 8, the sucking disc 5 is convenient to block, and the sucking disc 5 can be adsorbed on a blackboard more stably, the outside fixedly connected with slide bar 10 of screw thread splint 3, the outside surface of slide bar 10 is covered with spring 11 outward, the outer end fixedly connected with limiting plate 12 of slide bar 10, be convenient for make screw thread splint 3 can automatic outside removal under spring 11's the elastic action after screw thread splint 3 remove, thereby be convenient for carry out the dismouting use to the chalk, the gas leakage hole 18 has been seted up to the left side wall of sucking disc 5, be convenient for admit air to sucking disc 5, make sucking disc 5 can quick detach, the left side upper end fixedly connected with angle scale 19 of dipperstick 1, be convenient for measure the use to the turned angle of dipperstick 1.

Example 2: referring to fig. 1 and fig. 4, the present embodiment is different from embodiment 1 in that: the left side screwed connection of slider 2 has second threaded rod 13, the piece 14 is turned round to the upper end fixedly connected with of second threaded rod 13, the lower extreme fixedly connected with kicking block 15 of second threaded rod 13, it reciprocates to make second threaded rod 13 can drive kicking block 15 through the rotation of turning round piece 14, the lower extreme sliding connection of kicking block 15 has ejector pin 16, the elasticity stopper 17 of the outer end fixedly connected with of ejector pin 16, can make elasticity stopper 17 remove about the in-process makes elasticity stopper 17 reciprocate at kicking block 15, and then make elasticity stopper 17 can carry out spacing use to slider 2, make the instrument chi can carry out circular drawing use.

The working process is as follows: this device does not adopt any power to supply power when using, when carrying out drawing processing in mathematical education, fixes the device on the blackboard through sucking disc 5 to make first threaded rod 7 drive closing block 8 and move down through the rotation to rolling disc 9, thereby make closing block 8 can carry out the shutoff to gas leakage hole 18, and then make sucking disc 5 can stably adsorb on the blackboard surface. Fixed back at the left end of dipperstick 1, pass the chalk in the middle of threaded clamp plate 3, and make threaded clamp plate 3 can move to the inboard through the forward rotation to elasticity nut 4, thereby make the chalk can obtain fixed centre gripping, threaded clamp plate 3 removes the in-process simultaneously, make slide bar 10 drive limiting plate 12 move to the inboard, and make spring 11 compress, and then can make spring 11 bullet stretch when changing the chalk, make threaded clamp plate 3 can rotate and pop out, the chalk of being convenient for is fixed and is dismantled the use, can make the chalk after fixing can carry out sharp drawing fast through the removal to slider 2 simultaneously. And when carrying out the circular drawing of fixed diameter, forward through turning round piece 14 rotates and makes second threaded rod 13 can drive kicking block 15 downstream, thereby make ejector pin 16 drive elasticity stopper 17 and move to the outside, and then make elasticity stopper 17 can be connected with dipperstick 1, make slider 2 can obtain spacing processing, and make the chalk can use sucking disc 5 to carry out circular drawing as the center through the rotation to dipperstick 1, make dipperstick 1 have the multifunctionality, can promote drawing efficiency, and then promote teaching quality, the drawing use of the mathematical education of being convenient for.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A instrument chi for mathematical education, includes dipperstick (1), rolling disc (9) and angle scale (19), its characterized in that: the inner side of the measuring scale (1) is connected with a sliding block (2) in a sliding manner, the inner side of the sliding block (2) is connected with a threaded clamping plate (3) in a sliding manner, and the upper side of the threaded clamping plate (3) is connected with a loose-tight nut (4) in a spiral manner; the left side of dipperstick (1) is rotated and is connected with sucking disc (5), the upper end fixedly connected with angle pointer (6) of sucking disc (5), the inboard screwed connection of angle pointer (6) has first threaded rod (7), screwed connection between first threaded rod (7) and sucking disc (5), the lower extreme fixedly connected with closure piece (8) of first threaded rod (7), sliding connection between closure piece (8) and sucking disc (5), the upper end fixedly connected with rolling disc (9) of first threaded rod (7), sliding connection between rolling disc (9) and angle pointer (6).

2. A tool rule for mathematical education as claimed in claim 1 wherein: the outside fixedly connected with slide bar (10) of screw splint (3), sliding connection between slide bar (10) and slider (2), the outside surface of slide bar (10) is covered with spring (11) outward, the outer end fixedly connected with limiting plate (12) of slide bar (10), sliding connection between limiting plate (12) and slider (2).

3. A tool rule for mathematical education as claimed in claim 1 wherein: the left side screwed connection of slider (2) has second threaded rod (13), piece (14) is turned round to the upper end fixedly connected with of second threaded rod (13), lower extreme fixedly connected with kicking block (15) of second threaded rod (13), the lower extreme sliding connection of kicking block (15) has ejector pin (16), sliding connection between ejector pin (16) and slider (2), the outer end fixedly connected with elasticity stopper (17) of ejector pin (16), sliding connection between elasticity stopper (17) and slider (2), sliding connection between elasticity stopper (17) and dipperstick (1).

4. A tool rule for mathematical education as claimed in claim 1 wherein: the left side wall of the sucker (5) is provided with an air leakage hole (18).

5. A tool rule for mathematical education as claimed in claim 1 wherein: the left side upper end fixedly connected with angle scale (19) of dipperstick (1), rotate between angle scale (19) and angle pointer (6) and be connected.

6. A tool rule for mathematical education as claimed in claim 1 wherein: the number of the threaded clamping plates (3) is four, and the threaded clamping plates (3) are symmetrically arranged around the central axis of the elastic nut (4).