CN212920944U - Folding ruler for teaching - Google Patents
Folding ruler for teaching Download PDFInfo
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- CN212920944U CN212920944U CN202021425101.0U CN202021425101U CN212920944U CN 212920944 U CN212920944 U CN 212920944U CN 202021425101 U CN202021425101 U CN 202021425101U CN 212920944 U CN212920944 U CN 212920944U
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- ruler body
- ruler
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Abstract
The utility model belongs to teaching aid field is used in the teaching, a folding ruler is used in teaching is disclosed, include: the first ruler body and the second ruler body are vertically hinged with each other; the top end of the first ruler body is provided with a marking mechanism, and the marking mechanism comprises a pen fixing device, an indicating rod, a connecting frame and a sliding block; the pen fixing device is fixedly connected with the indicating rod, and a pointer of the indicating rod points to the scale mark of the first ruler body; the lower end of the pen fixing device is fixedly connected with the connecting frame and the sliding block in sequence, the front surface of the first ruler body is provided with a sliding groove along the length direction of the first ruler body, and the sliding block is assembled into the sliding groove in a sliding manner; the folding ruler is convenient to fold and small in occupied size, pollution of carbon powder scraps in ink or pencils to the ruler in the scribing process can be effectively reduced through the scribing mechanism, scale marks printed on the surface of the ruler are effectively protected, and the service life of the ruler is prolonged; and the first ruler body and the second ruler body are flattened through the limiting mechanism, so that the use is convenient.
Description
Technical Field
The utility model relates to a teaching aid field is used in the teaching, concretely relates to folding type ruler is used in teaching.
Background
With the development of science and technology and the progress of the times, various disciplines get corresponding attention, and the general disciplines include: the language, mathematics, english, etc. simultaneously, mathematics is in the learning process from learning to university, an indispensable discipline, and the instrument that uses in the mathematics teaching process is many, for example: straightedge, compasses, model sphere, etc.
The existing ruler for mathematics cannot effectively protect the scale marks printed on the surface of the ruler, so that the ruler is short in service life. When the ruler is used for marking, the pen is easy to pollute and damage the scale marks. Meanwhile, when the ruler is used or collected and stored after being used, sweat and dirt on hands easily pollute the ruler, so that the dirt is attached to the upper surface of the ruler, and the scale marks are gradually blurred or even completely disappear.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a folding ruler for teaching, which has simple structure, convenient folding and small occupied volume, and can effectively reduce the pollution of carbon powder scraps in printing ink or pencils to the ruler in the scribing process through a scribing mechanism, effectively protect the scale lines printed on the surface of the ruler and prolong the service life of the ruler; and the first ruler body and the second ruler body are flattened through the limiting mechanism, so that the use is convenient.
In order to achieve the above purpose, the present invention adopts the following technical solution.
A folding straightedge for teaching comprising: the first ruler body and the second ruler body; the first ruler body and the second ruler body are vertically hinged with each other;
the front surfaces of the first ruler body and the second ruler body are respectively provided with scale marks, the top end of the first ruler body is provided with a marking mechanism, and the marking mechanism is used for marking a pen along the edge of the upper end of the first ruler body; the marking mechanism comprises a pen fixing device, an indicating rod, a connecting frame and a sliding block;
the pen fixing device is used for fixing a pen, the pen fixing device is fixedly connected with the indicating rod, a pointer of the indicating rod points to the scale mark of the first ruler body, and the indicating rod is parallel to the scale mark of the first ruler body;
the lower end of the pen fixing device is fixedly connected with the connecting frame and the sliding block in sequence, a sliding groove is formed in the front face of the first ruler body along the length direction of the first ruler body, and the sliding block is assembled into the sliding groove in a sliding mode.
Preferably, the pen fixing device comprises a fixing ring, a fixing screw hole and a bolt; wherein, the side wall of the fixing ring is provided with a fixing screw hole, and a bolt is assembled in the fixing screw hole; the pen is inserted into the fixing ring, the bolt is spirally arranged in the fixing screw hole and is propped against the side wall of the pen, and the pen is fixed on the fixing ring.
Preferably, the first ruler body and the second ruler body are fixed by suction.
Preferably, the adsorption mechanism includes a first magnet and a second magnet; the first magnets are arranged on the back surface of the first ruler body in a bilateral symmetry mode, and the second magnets are arranged on the back surface of the second ruler body and correspond to the first magnets.
Preferably, a groove is formed in the back surface of the first ruler body, and the first magnet is embedded in the groove of the first ruler body; the back of the second ruler body is provided with a groove, and the second magnet is embedded in the groove of the second ruler body.
Preferably, the first ruler body is provided with limiting grooves in bilateral symmetry below the front face, and a limiting mechanism is assembled in each limiting groove and used for flattening the first ruler body and the second ruler body.
Preferably, the restricting mechanism comprises a restricting lever and a spring; an installation groove is formed in the limiting groove of the first ruler body, one end of the spring is fixedly connected with the installation groove, the other end of the spring is fixedly connected with the limiting rod, and the limiting rod can be assembled into the limiting groove; the limiting rod can horizontally rotate around the spring and is attached to the front faces of the first ruler body and the second ruler body.
Preferably, the upper end surface of the limiting rod is provided with a handle.
Preferably, the sum of the height of the mounting groove, the height of the limiting rod and the height of the handle is not greater than the thickness of the first ruler body.
Preferably, the first blade and the second blade have different accuracies.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic top view of the foldable teaching ruler of the present invention;
FIG. 2 is a left side view of the line marking mechanism of FIG. 1;
FIG. 3 is a schematic structural view of the pen holding device in FIG. 1;
FIG. 4 is a left side view of the limiting mechanism of FIG. 1;
fig. 5 is a back structural view of the folding ruler for teaching in fig. 1.
In the above figures: 1, a first ruler body; 101, a chute; 102 define a slot; 103, mounting a groove; 2, a second ruler body; 3, a hinge; 4, a marking mechanism; 410 a pen tool fixing device; 411 fixing the ring; 412 bolts; 420 indicates a lever; 430 a connecting frame; 440 a slider; 5 a first magnet; 6 a second magnet; 7 a limiting mechanism; 710 define a rod; 711 a handle; 720 spring; 8 pens.
Detailed Description
Referring to fig. 1 to 5, a foldable teaching straightedge according to an embodiment of the present invention comprises: a first ruler body 1 and a second ruler body 2; the first ruler body 1 and the second ruler body 2 are vertically hinged with each other; the front surfaces of the first ruler body 1 and the second ruler body 2 are respectively provided with scale marks, the top end of the first ruler body 1 is provided with a marking mechanism 4, and the marking mechanism 4 is used for marking a pen 8 along the edge of the upper end of the first ruler body 1; the scribing mechanism 4 comprises a pen fixing device 410, an indicating rod 420, a connecting frame 430 and a sliding block 440; the pen fixing device 410 is used for fixing a pen 8, the pen fixing device 410 is fixedly connected with the indicating rod 420, a pointer of the indicating rod 420 points to a scale mark of the first ruler body 1, and the indicating rod 420 is parallel to the scale mark of the first ruler body 1; the lower end of the pen fixing device 410 is sequentially fixedly connected with the connecting frame 430 and the sliding block 440, the sliding groove 101 is formed in the front face of the first ruler body 1 along the length direction of the first ruler body 1, and the sliding block 440 is assembled into the sliding groove 101 in a sliding mode.
In the above embodiment, the first ruler body 1 and the second ruler body 2 are the same in shape, the front faces of the first ruler body 1 and the second ruler body 2 are respectively provided with scale marks, the first ruler body 1 and the second ruler body 2 are vertically hinged through the hinge 3, the first ruler body 1 and the second ruler body 2 can rotate along the hinge 3, the folding operation of the ruler can be effectively carried out, and the occupied space of the ruler is reduced. And the scale surfaces of the first ruler body 1 and the second ruler body 2 can be folded in opposite directions, so that the scale marks of the first ruler body 1 and the second ruler body 2 are effectively protected. The pen tool fixing device 410, the indicating rod 420, the connecting frame 430 and the sliding block 440 form an integrated marking mechanism 4, and the pen tool fixing device 410 is used for fixing the pen tool 8. The pointer of the indicating rod 420 points to the scale mark of the first ruler body 1, so that the position of the scribing is convenient to determine, and the scribing length can be accurately controlled. The pen 8 is manually pulled, so that the pen fixing device 410 and the connecting frame 430 (the connecting frame 430 is an L-shaped connecting frame) slide along the sliding groove 101 on the first ruler body 1 along with the sliding block 440, and the scribing work is quickly completed.
The utility model discloses a folding type ruler is folded conveniently for teaching, occupies smallly, and can effectively reduce the carbon dust piece in printing ink or the pencil through marking mechanism 4 and at the pollution of marking off in-process alignment chi, effectively protect the scale mark on the alignment chi, prolonged the life of ruler.
Referring to fig. 1 and 3, according to an embodiment of the present invention, the pen fixing device 410 includes a fixing ring 411, a fixing screw hole, and a bolt 412; wherein, the side wall of the fixing ring 411 is provided with a fixing screw hole, and a bolt 412 is assembled in the fixing screw hole; the pen 8 is inserted into the fixing ring 411, and the bolt 412 is screwed into the fixing screw hole and abuts against the side wall of the pen 8, so as to fix the pen 8 on the fixing ring 411.
In the above embodiment, the fixing ring 411 is disposed at the upper end edge of the first ruler body 1, the pen 8 is inserted into the fixing ring 411, the bolt 412 is screwed into the fixing screw hole on the side wall of the fixing ring 411 and abuts against the side wall of the pen 8, and the pen 8 is vertically fixed on the fixing ring 411, so as to facilitate the scribing operation of the pen 8.
Referring to fig. 5, according to an embodiment of the present invention, the utility model further comprises an adsorbing mechanism, the adsorbing mechanism is used to adsorb and fix the first ruler body 1 and the second ruler body 2.
In the above embodiment, after the ruler is folded, the first ruler body 1 and the second ruler body 2 are fixedly adsorbed by the adsorption mechanism, so that the folded ruler is conveniently stabilized and stabilized, and the problem of looseness of the folded part of the ruler is avoided.
Referring to fig. 5, according to an embodiment of the present invention, the adsorption mechanism comprises a first magnet 5 and a second magnet 6; the first magnets 5 are arranged on the back surface of the first ruler body 1 in a bilateral symmetry mode, and the second magnets 6 are arranged on the back surface of the second ruler body 2 corresponding to the first magnets 5.
In the above embodiment, the first magnet 5 and the second magnet 6 are disposed symmetrically about the transverse axis of the hinge 3. When the ruler does not work, the scale surface (front) of the first ruler body 1 and the scale surface of the second ruler body 2 rotate in opposite directions along the hinge 3, and the scale lines are not printed on the first ruler body 1 and the second ruler body 2, so that the first ruler body and the second ruler body face outwards under the action of attraction of the first magnet and the second magnet, manual holding is facilitated, and the scale lines printed on the surface of the ruler are effectively protected.
Referring to fig. 5, according to an embodiment of the present invention, a groove is provided on the back of the first ruler body 1, and the first magnet 5 is embedded in the groove of the first ruler body 1; the back of the second ruler body 2 is provided with a groove, and the second magnet 6 is embedded in the groove of the second ruler body 2.
In the above embodiment, the first magnet 5 and the second magnet 6 are respectively and correspondingly embedded in the grooves on the back surfaces of the first ruler body 1 and the second ruler body 2, the surface of the first magnet 5 is flush with the back surface of the first ruler body 1, and the surface of the second magnet 6 is flush with the back surface of the second ruler body 2, so that the back surfaces of the first ruler body 1 and the second ruler body 2 can be completely attached to the surface of paper when the first ruler body 1 and the second ruler body 2 perform a scribing operation.
Referring to fig. 1 and 4, according to one embodiment of the invention, the first ruler body 1 is provided with a limiting groove 102 in bilateral symmetry below the front surface, each limiting groove 102 is provided with a limiting mechanism 7, and the limiting mechanisms 7 are used for flattening the first ruler body 1 and the second ruler body 2. The restricting mechanism 7 comprises a restricting lever 710 and a spring 720; a mounting groove 103 is arranged in the limiting groove 102 of the first ruler body 1, one end of the spring 720 is fixedly connected with the mounting groove 103, the other end of the spring 720 is fixedly connected with the limiting rod 710, and the limiting rod 710 can be assembled into the limiting groove 102; the limiting rod 710 can horizontally rotate around the spring 720 and is attached to the front surfaces of the first ruler body 1 and the second ruler body 2.
In the above embodiment, two limiting grooves 102 are arranged below the front surface of the first ruler body 1, the limiting grooves 102 are transversely arranged along the length direction of the first ruler body 1, the mounting groove 103 is formed in the limiting groove 102, the spring 720 is mounted in the mounting groove 103, the spring 720 can be completely mounted in the mounting groove 103 in the initial state, the limiting rod 710 is welded at the upper end of the spring 720, the limiting rod 710 can be mounted in the limiting groove 102, the upper end surface of the limiting rod 710 cannot be higher than the front surface of the first ruler body 1, and the phenomenon of poor folding effect is avoided. When the first ruler body 1 and the second ruler body 2 are unfolded to work, the limiting rod 710 is lifted manually, the limiting rod 710 drives the spring 720 to stretch, and then the limiting rod 710 horizontally rotates for 90 degrees manually, so that one end of the limiting rod 710 is attached to the front face of the first ruler body 1, the other end of the limiting rod 710 is attached to the front face of the second ruler body 2, namely, the first ruler body 1 and the second ruler body 2 are unfolded, limitation on the second ruler body 2 is completed, and measurement and drawing work of the ruler in the mathematical teaching process is facilitated.
Referring to fig. 4, according to an embodiment of the present invention, the upper end surface of the limiting rod 710 is provided with a handle 711.
In the above embodiment, the limiting rod 710 is lifted up from the limiting groove 102 by the handle 711, which is convenient and fast.
According to an embodiment of the present invention, the sum of the height of the mounting groove 103, the height of the limiting rod 710 and the height of the handle 711 is not greater than the thickness of the first ruler body 1.
In the above embodiment, the sum of the height of the mounting groove 103, the height of the limiting rod 710 and the height of the handle 711 is not greater than the thickness of the first ruler body 1, so that when the ruler is folded, the limiting rod 710 can be completely assembled into the limiting groove 102, the upper end surface of the limiting rod 710 is ensured not to be higher than the front surface of the first ruler body 1, and the phenomenon of poor folding effect is avoided.
Referring to fig. 1, according to one embodiment of the present invention, the accuracy of the first blade 1 and the second blade 2 is different.
In the above embodiment, the scribing mechanism 4 can be arranged on the second ruler body 2 according to actual requirements, so as to meet scribing requirements with different precisions.
The utility model discloses a use method of folding ruler for teaching does: when a teacher uses the folding ruler to draw lines, the limiting rod 710 is lifted from the limiting groove 102 through the handle 711, and then the limiting rod 71090 is horizontally rotated, so that the limiting rod 710 is attached to the surfaces of the first ruler body 1 and the second ruler body 2; the first ruler body 1 is attached to the surface of paper, the pen 8 is inserted into the fixing ring 411 and fixed through the bolt 412, the pen 8 is manually shifted, the fixing ring 411 and the connecting frame 430 slide along the sliding groove 101 along with the sliding block 440, and the scribing work is rapidly completed according to the indication of the indicating rod 420.
When the ruler does not work, the scale surface of the first ruler body 1 and the scale surface of the second ruler body 2 are manually rotated along the hinge 3 in opposite directions, and then the first magnet 5 on the back of the first ruler body 1 and the second magnet 6 on the back of the second ruler body 2 are attracted to each other to complete the folding and stabilizing work of the ruler.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims (10)
1. The utility model provides a folding type ruler is used in teaching which characterized in that includes: a first ruler body (1) and a second ruler body (2); the first ruler body (1) and the second ruler body (2) are vertically hinged with each other;
the front surfaces of the first ruler body (1) and the second ruler body (2) are respectively provided with scale marks, the top end of the first ruler body (1) is provided with a marking mechanism (4), and the marking mechanism (4) is used for marking a pen tool (8) along the edge of the upper end of the first ruler body (1); the marking mechanism (4) comprises a pen fixing device (410), an indicating rod (420), a connecting frame (430) and a sliding block (440);
the pen fixing device (410) is used for fixing a pen (8), the pen fixing device (410) is fixedly connected with the indicating rod (420), a pointer of the indicating rod (420) points to the scale mark of the first ruler body (1), and the indicating rod (420) is parallel to the scale mark of the first ruler body (1);
the lower end of the pen fixing device (410) is fixedly connected with the connecting frame (430) and the sliding block (440) in sequence, the sliding groove (101) is formed in the front face of the first ruler body (1) along the length direction of the first ruler body (1), and the sliding block (440) is assembled into the sliding groove (101) in a sliding mode.
2. The folding ruler as claimed in claim 1, wherein said means for fixing pens (410) comprises a fixing ring (411), fixing screw holes and bolts (412); wherein, the side wall of the fixing ring (411) is provided with a fixing screw hole, and a bolt (412) is assembled in the fixing screw hole; the pen tool (8) is inserted into the fixing ring (411), the bolt (412) is spirally installed into the fixing screw hole and props against the side wall of the pen tool (8), and the pen tool (8) is fixed on the fixing ring (411).
3. The folding ruler as claimed in claim 1, further comprising an adsorption mechanism for adsorbing and fixing the first ruler body (1) and the second ruler body (2).
4. A foldable teaching straightedge according to claim 3, wherein said attracting means comprises a first magnet (5) and a second magnet (6); the first magnets (5) are arranged on the back surface of the first ruler body (1) in a bilateral symmetry mode, and the second magnets (6) are arranged on the back surface of the second ruler body (2) corresponding to the first magnets (5).
5. The folding ruler as claimed in claim 4, wherein a groove is formed in the back of the first ruler body (1), and the first magnet (5) is embedded in the groove of the first ruler body (1); the back of the second ruler body (2) is provided with a groove, and the second magnet (6) is embedded in the groove of the second ruler body (2).
6. The folding ruler for teaching as claimed in claim 1, wherein the first ruler body (1) is provided with limiting grooves (102) in bilateral symmetry below the front surface, each limiting groove (102) is provided with a limiting mechanism (7), and the limiting mechanisms (7) are used for flattening the first ruler body (1) and the second ruler body (2).
7. The folding teaching straightedge according to claim 6, wherein said limiting means (7) comprises a limiting rod (710) and a spring (720); a mounting groove (103) is arranged in a limiting groove (102) of the first ruler body (1), one end of the spring (720) is fixedly connected with the mounting groove (103), the other end of the spring (720) is fixedly connected with a limiting rod (710), and the limiting rod (710) can be assembled into the limiting groove (102); the limiting rod (710) can horizontally rotate around the spring (720) and is attached to the front faces of the first ruler body (1) and the second ruler body (2).
8. The folding teaching straightedge according to claim 7, wherein said limiting rod (710) is provided with a handle (711) on its upper end.
9. The folding ruler for teaching as claimed in claim 8, wherein the sum of the height of the mounting groove (103), the height of the limiting rod (710) and the height of the handle (711) is not greater than the thickness of the first ruler body (1).
10. Folding ruler for teaching as claimed in claim 1, characterized by the fact that said first ruler body (1) and said second ruler body (2) differ in precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021425101.0U CN212920944U (en) | 2020-07-17 | 2020-07-17 | Folding ruler for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021425101.0U CN212920944U (en) | 2020-07-17 | 2020-07-17 | Folding ruler for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212920944U true CN212920944U (en) | 2021-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021425101.0U Active CN212920944U (en) | 2020-07-17 | 2020-07-17 | Folding ruler for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212920944U (en) |
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2020
- 2020-07-17 CN CN202021425101.0U patent/CN212920944U/en active Active
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