CN203397557U - Multifunctional plane figure flexible teaching appliance - Google Patents
Multifunctional plane figure flexible teaching appliance Download PDFInfo
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- CN203397557U CN203397557U CN201320342378.0U CN201320342378U CN203397557U CN 203397557 U CN203397557 U CN 203397557U CN 201320342378 U CN201320342378 U CN 201320342378U CN 203397557 U CN203397557 U CN 203397557U
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- barrel
- contraction pole
- teaching aid
- multifunctional
- plane
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Abstract
Provided is a multifunctional plane figure flexible teaching appliance which comprises telescoping rods and a groove pipe. Three telescoping rods are connected end-to-end in a hinged mode and then connected with two ends of the groove pipe in the hinged mode. The telescoping rods can stretch out and draw back freely, and angles among the telescoping rods can be changed so that various plane geometric figures can be formed by the telescoping rods and the groove pipe. Besides, after the three telescoping rods are shortened, the telescoping rods can be accommodated in the groove pipe in straight line arrangement. Diverse plane geometric figures can be demonstrated by the multifunctional plane figure flexible teaching appliance. Number of sides can be changed via combination and splitting so that change relations between figures can be demonstrated dynamically. When the multifunctional plane figure flexible teaching appliance is not used, the multifunctional plane figure flexible teaching appliance can be conveniently accommodated in the groove pipe so that the multifunctional plane figure flexible teaching appliance is small in size, does not occupy space and is convenient to carry. Functions of various teaching appliances are integrated as a whole so that operational ability and efficiency of learning the plane geometric figures of students can be enhanced.
Description
Technical field
The utility model relates to a kind of teaching aid, relates in particular to a kind of Multifunctional planar graphics activity teaching aid.
Background technology
Teaching aid is the apparatus using while making student can understand intuitively, visually each appliances that the content of courses used and teachers' instruction.Teaching aid can improve student's learning interest, enriches perceptual knowledge, and helps to form clear and definite concept, the observation ability of Developing Students ' and thinking ability.In the middle of daily teaching, can use various plane teaching aids, for example ruler, T-square and set square etc., but these teaching aids all size are fixing, and independently become one separately, and take up room large, carry also comparatively inconvenient, and these teaching aid shapes are also fixed, cannot carry out change demonstration, such as etc. the triangle of high bottom side length, no matter how its shape becomes, its area is to immobilize, the demonstration that traditional teaching aid cannot be vivid.
Utility model content
The technical assignment of technical problem to be solved in the utility model and proposition is that prior art is improved, a kind of Multifunctional planar graphics activity teaching aid is provided, solve in current technology teaching aid volume large, carry inconvenience and the problem of change demonstration flexibly.
For solving above technical matters, the technical solution of the utility model is:
A kind of Multifunctional planar graphics activity teaching aid, comprise expansion link and barrel, barrel is along being provided with groove on axis direction, three contraction poles join end to end by hinged mode, in hinged mode, be connected to again the two ends of barrel, contraction pole retractable the angle changing each other form various plane geometric figures together with barrel, and by line spread, can be accommodated in the groove of barrel after three contraction poles shortenings.By reeling expansion link and changing angle each other, Multifunctional planar graphics activity teaching aid can be deformed into the plane geometric figure of commonly using in the teaching such as square, rectangle, triangle, trapezoidal and rhombus, pin joint can also be disconnected, demonstration line segment, ray, straight line and angle etc., two Multifunctional planar graphics activity teaching aids can also be become to same triangle, then the composition parallelogram that is stitched together, and demonstrate leg-of-mutton three line segments and must meet the condition that both sides sum must be greater than San limit.Teacher demonstration, can be intuitively, vividly, to student, show plane geometric figure visually; Student's operation, the experimental implementation manipulative ability of having cultivated student, teaches through lively activities, and can improve the cognitive ability of student to plane geometry knowledge.Multifunctional planar graphics activity teaching aid can be varied to diversified planar graph, simple in structure, easy to operate, flexible and changeable, practical.
Further, the minimum length that contraction pole shortens is less than 1/3rd of barrel length, and such three contraction poles can be accommodated in barrel by line spread, are convenient for carrying placement, do not take up room.
Further, the extreme length that contraction pole extends is greater than the length of barrel, contraction pole can be elongated to length demonstration rhombus and the square of barrel.
Further, have size scale for accurately controlling dimension of picture on contraction pole and barrel, the length relation of the cognitive planar graph length of side more clearly, such as demonstrating Pythagorean theorem etc.
Further, the articulated manner that contraction pole is mutual and contraction pole adopt screw rod to be connected with the articulated manner between barrel, and circular hole is opened at the two ends of contraction pole and barrel, screw rod runs through circular hole connection and realizes hinged, this kind of articulated manner sound construction, survivable, long service life.
Further, the articulated manner that contraction pole is mutual and contraction pole adopt clamp-close type to be connected with the articulated manner between barrel, can be not by instrument disassembly and assembly at any time, for demonstrating straight line, ray and angle etc., flexibly and easily.
Further, contraction pole is also provided with block chalaza on the direction of axis line at pin joint place, when demonstration triangle, can be used for two contraction poles to connect into straight line, avoids the effect of Bending Influence demonstration.
Compared with prior art, the utility model advantage is:
Multifunctional planar graphics activity teaching aid described in the utility model utilizes expansion link to be hinged and links together, can flexible elongated and shorten and can be along pin joint flexible rotating, thereby can demonstrate out diversified plane geometric figure, by combination, split and change limit number, variation relation between dynamic demonstration figure, when not using, can be accommodated in easily in barrel, volume is little not to take up room, easy to carry, functional diversities, comprised ruler, T-square, the function of the multiple teaching aid such as set square, during teaching, only need use the utility model and no longer need to carry a large amount of teaching aids, student does it yourself to operate variation the utility model can strengthen the cognition degree to abstract planar graph, the utility model is simple in structure, lightweight, flexible and convenient to use, manufactures cost low, of many uses.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is plan structure schematic diagram of the present utility model;
Fig. 3 is contraction pole size scale schematic diagram of the present utility model;
Fig. 4 is screw rod connected mode structural representation of the present utility model;
Fig. 5 is engagement connection mode structural representation of the present utility model;
Fig. 6 is another kind of engagement connection mode structural representation of the present utility model;
Fig. 7 is block chalaza structural representation of the present utility model;
Fig. 8 is a kind of sea level changes pictorial diagram of the present utility model;
Fig. 9 is another kind of sea level changes pictorial diagram of the present utility model;
Figure 10 is the third sea level changes pictorial diagram of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
The disclosed a kind of Multifunctional planar graphics activity teaching aid of the utility model embodiment, the teaching aid of realizing various plane geometric figures of change demonstration flexibly and being convenient for carrying of take is object.
Referring to Fig. 1, a kind of Multifunctional planar graphics activity teaching aid, comprises expansion link 1 and barrel 2, and the minimum length that contraction pole 1 shortens is less than 1/3rd of barrel 2 length, and the extreme length that contraction pole 1 extends is greater than the length of barrel 2.Three contraction poles 1 join end to end by hinged mode, in hinged mode, be connected to again the two ends of barrel 2, contraction pole 1 retractable the angle changing each other form various plane geometric figures together with barrel 2, as shown in the figure, Multifunctional planar graphics activity teaching aid can be demonstrated out square, and as shown in Figure 2, barrel 2 is along being provided with groove on axis direction, after shortening, three contraction poles 1 can be accommodated in the groove of barrel 2 by line spread, volume is little, do not take up room, be convenient for carrying, use flexibly.
As shown in Figure 3, have size scale for accurately controlling dimension of picture on contraction pole 1 and barrel 2, the relation of Presentation Graphics variation accurately and the figure length of side, can quantitatively demonstrate Pythagorean theorem, equilateral triangle, isosceles trapezoid etc. intuitively.
As shown in Figure 4, the articulated manner of the articulated manner that contraction pole 1 is mutual and contraction pole 1 and 2 of barrels adopts screw rod to be connected, and circular hole is opened at the two ends of contraction pole 1 and barrel 2, and screw rod runs through circular hole connection and realizes hingedly, and sound construction is durable.
As shown in Figure 5, the articulated manner that contraction pole 1 is mutual and contraction pole 1 adopt clamp-close type to be connected with the articulated manner of 2 of barrels, in the taper end of contraction pole 1, there are two symmetrical circular pit, on the other end being attached thereto, be provided with circular salient point, by salient point, be engaged to that in pit, to realize hinge free to rotate, and can dismantle flexibly convenient demonstration ray, straight line, angle etc.
As shown in Figure 6, the mutual articulated manner of contraction pole 1 can also be designed to one end and be provided with resilient pin, the other end arranges circular hole, by resilient pin, be inserted into and in circular hole, reach the rotating effect of hinge, when needs are dismantled, with hand, mediate resilient pin and from circular hole, deviate from and can disconnect, can reach equally the effect of flexible dismounting.
As shown in Figure 7, contraction pole 1 is also provided with block chalaza 3 on the direction of axis line at pin joint place, card and put 3 with the contacting on the direction of axis line that is in contraction pole 1 of pin joint, therefore when block chalaza 3 engages, can make two contraction poles 1 be positioned in straight line direction.
As shown in Fig. 8～Figure 10, Multifunctional planar graphics activity teaching aid of the present utility model can develop into diversified plane geometric figure, for example the isosceles right triangle in Fig. 7; In Fig. 8, can demonstrate the relation at leg-of-mutton interior angle and exterior angle, leg-of-mutton interior angle add exterior angle and be 180 °; In Fig. 9, remove a wherein connection that saves 1 of contraction pole and can be used for demonstrating ray.
Below be only preferred implementation of the present utility model, it should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with claim limited range.For those skilled in the art, within not departing from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. a Multifunctional planar graphics activity teaching aid, it is characterized in that, comprise expansion link (1) and barrel (2), barrel (2) is along being provided with groove on axis direction, three contraction poles (1) join end to end by hinged mode, in hinged mode, be connected to again the two ends of barrel (2), contraction pole (1) retractable the angle changing each other form various plane geometric figures together with barrel (2), and by line spread, can be accommodated in the groove of barrel (2) after three contraction poles (1) shortening.
2. Multifunctional planar graphics activity teaching aid according to claim 1, is characterized in that, the minimum length that described contraction pole (1) shortens is less than 1/3rd of barrel (2) length.
3. Multifunctional planar graphics activity teaching aid according to claim 2, is characterized in that, the extreme length that described contraction pole (1) extends is greater than the length of barrel (2).
4. Multifunctional planar graphics activity teaching aid according to claim 2, is characterized in that, has size scale for accurately controlling dimension of picture on described contraction pole (1) and barrel (2).
5. according to the Multifunctional planar graphics activity teaching aid described in claim 1 to 4 any one, it is characterized in that, the articulated manner that described contraction pole (1) is mutual and contraction pole (1) adopt screw rod to be connected with the articulated manner between barrel (2), circular hole is opened at the two ends of contraction pole (1) and barrel (2), screw rod runs through circular hole and connects and to realize hingedly, and sound construction is durable.
6. according to the Multifunctional planar graphics activity teaching aid described in claim 1 to 4 any one, it is characterized in that, the articulated manner that described contraction pole (1) is mutual and contraction pole (1) adopt clamp-close type to be connected with the articulated manner between barrel (2), and convenient disassembly is used flexibly.
7. Multifunctional planar graphics activity teaching aid according to claim 6, is characterized in that, described contraction pole (1) is also provided with block chalaza (3) for two contraction poles (1) are connected into straight line on the direction of axis line at pin joint place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320342378.0U CN203397557U (en) | 2013-06-14 | 2013-06-14 | Multifunctional plane figure flexible teaching appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320342378.0U CN203397557U (en) | 2013-06-14 | 2013-06-14 | Multifunctional plane figure flexible teaching appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203397557U true CN203397557U (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320342378.0U Expired - Fee Related CN203397557U (en) | 2013-06-14 | 2013-06-14 | Multifunctional plane figure flexible teaching appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203397557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112270881A (en) * | 2020-11-29 | 2021-01-26 | 史顺其 | Demonstration teaching aid for electricity experiment of physics of middle school |
-
2013
- 2013-06-14 CN CN201320342378.0U patent/CN203397557U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112270881A (en) * | 2020-11-29 | 2021-01-26 | 史顺其 | Demonstration teaching aid for electricity experiment of physics of middle school |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20190614 |