CN209765832U

CN209765832U - Portable triangle inner angle sum demonstrator

Info

Publication number: CN209765832U
Application number: CN201920096700.3U
Authority: CN
Inventors: 刘娆茜
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-22
Filing date: 2019-01-22
Publication date: 2019-12-10
Anticipated expiration: 2029-01-22

Abstract

The utility model discloses a portable triangle inner angle and demonstrator, which comprises a right angle fixing frame, a first telescopic link, a second telescopic link, a connecting rod, an angle measuring component, an extrusion positioning component, a spring seat, a reset spring and a moving groove, wherein the moving groove is arranged at both ends of the right angle fixing frame, the spring seat is arranged at one side of the moving groove, the reset spring is arranged at one side of the spring seat, the first telescopic link and the second telescopic link are respectively connected with one end of the reset spring in the corresponding moving groove, the first telescopic link is connected with the second telescopic link through the connecting rod, the angle measuring component is arranged on the first telescopic link, and the extrusion positioning component is arranged on the right angle fixing frame; the utility model is beneficial to forming different right triangles, is convenient for demonstrating and observing multiple groups of data, does not occupy more space and is convenient to carry; the inner angle and theorem of the triangle are convenient to demonstrate; data for trilateral length values is conveniently recorded.

Description

Portable triangle inner angle sum demonstrator

Technical Field

The utility model relates to a teaching equipment technical field specifically is portable triangle-shaped interior angle and demonstration ware.

background

Mathematics (mathematics or maths, from greek, "m th yama"; often abbreviated as "math") is a discipline that studies the concepts of quantity, structure, variation, space, and information, and is one of the formal sciences from some point of view. Mathematicians and philosophies have a range of views on the exact scope and definition of mathematics. In human historical development and social life, mathematics also plays an irreplaceable role and is an essential basic tool for learning and researching modern science and technology.

The theorem of the triangle's interior angle sum adding up to 180 ° is one of the important theorems in mathematics. For the study of mathematics, a plurality of auxiliary demonstration devices are provided, the study of triangle interior angles and theorems is no exception, and the triangle interior angles and the demonstration devices are also provided.

however, the existing triangle inner angle and demonstrator has the following defects: the device is not beneficial to forming different right triangles, is inconvenient for carrying out demonstration and observation on a plurality of groups of data, and is inconvenient for carrying because the demonstrator occupies more space; the demonstration effect of the triangle internal angle and theorem is poor; data of the trilateral length value is inconvenient to record; in view of the defects, a portable triangular inner corner and a demonstrator are needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable triangle-shaped interior angle and demonstration ware to solve the problem of proposing among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the portable triangle inner angle and demonstration device comprises a right-angle fixing frame, a first telescopic rod, a second telescopic rod, a connecting rod, an angle measurement assembly, an extrusion positioning assembly, a spring seat, a reset spring and a moving groove, wherein the moving groove is formed in each of two ends of the right-angle fixing frame, the spring seat is arranged on one side of the moving groove, the reset spring is arranged on one side of the spring seat, the first telescopic rod and the second telescopic rod are respectively connected with one end of the reset spring in the corresponding moving groove, the first telescopic rod is connected with the second telescopic rod through the connecting rod, the angle measurement assembly is arranged on the first telescopic rod, and the extrusion positioning assembly is arranged on the right-angle fixing frame;

The angle measurement assembly comprises a protractor, a first scribed line and a second scribed line, the protractor is fixed at the bottom of one end of each of the first telescopic rod and the second telescopic rod through screws, the second scribed line is carved on each of the first telescopic rod and the second telescopic rod, the first scribed line is carved at each of the two ends of the connecting rod, and the intersection point of the connecting rod and each of the first telescopic rod and the second telescopic rod is taken as a starting point at each of the one ends of the first scribed line and the second scribed line;

The extrusion positioning assembly comprises a rotating block, a threaded rod, a rubber pad, a fixed groove, a threaded hole and a scale bar, threaded holes are formed in two ends of one side of the right-angle fixing frame, the fixed groove is formed in the bottom end of the threaded hole, the fixed groove is communicated with the moving groove, the two ends of one side of the right-angle fixing frame are located in the position of the threaded hole and provided with the rotating block, the threaded rod is installed at the bottom of the rotating block, one end of the threaded rod penetrates through the threaded hole to be connected with the rubber pad, the rubber pad is located inside the fixed.

further, the moving grooves are provided with two, and the return springs are provided with two.

Furthermore, the second scribed line is perpendicular to the center of the bottom edge of the protractor.

Furthermore, the lengths of the two sides of the right-angle fixing frame are equal.

Furthermore, the connecting rod is connected with the first telescopic rod and the second telescopic rod through pin shafts respectively.

compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. The first telescopic rod is pulled outwards, and meanwhile, the reset spring connected with the first telescopic rod is stretched, because the length of the connecting rod is unchanged, the second telescopic rod needs to be pushed towards the inner side of the moving groove, so that the reset spring connected with the second telescopic rod is stressed and compressed to form a triangle with an angle of 90 degrees, different right-angled triangles are favorably formed, multiple groups of data are conveniently demonstrated and observed, and meanwhile, due to the arrangement of the reset spring, the first telescopic rod and the second telescopic rod are conveniently restored to the initial state and are accommodated in the moving groove, so that more space is not occupied, and the carrying is convenient;

2. By observing the corresponding numerical values of the first reticle and the second reticle on the protractor, taking the difference value of the two numerical values as an angle value, recording the angle value between the connecting rod and the first telescopic rod and the second telescopic rod, calculating whether the sum of the two angle values is equal to 90 degrees, and facilitating the demonstration of the triangle inner angle and theorem;

3. The rotating block rotates, the drive threaded rod rotates, because threaded rod and screw hole threaded connection, make the threaded rod can reciprocate, thereby drive the rubber pad and reciprocate, twist and move the rotating block, make the threaded rod rotate downwards, drive the rubber pad and move down, extrude first telescopic link and second telescopic link, be favorable to fixing the position of first telescopic link and second telescopic link, the length that first telescopic link and second telescopic link stretch out is read to the rethread scale bar, be convenient for take notes the data of trilateral length value.

drawings

the accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic view of the internal structure of the right-angle fixing frame of the present invention;

fig. 3 is a schematic structural diagram of the region a of the present invention;

in the figure: 1. a right-angle fixing frame; 2. a first telescopic rod; 3. a second telescopic rod; 4. a connecting rod; 5. an angle measurement component; 51. a protractor; 52. a first reticle; 53. a second reticle; 6. extruding and positioning the assembly; 61. rotating the block; 62. a threaded rod; 63. a rubber pad; 64. fixing grooves; 65. a threaded hole; 66. a scale bar; 7. a spring seat; 8. a return spring; 9. the slot is moved.

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, the present invention provides a technical solution: the portable triangle inner angle and demonstration device comprises a right angle fixing frame 1, a first telescopic rod 2, a second telescopic rod 3, a connecting rod 4, an angle measuring component 5, an extrusion positioning component 6, a spring seat 7, a reset spring 8 and a moving groove 9, wherein the lengths of the two sides of the right angle fixing frame 1 are equal, the right angle fixing frame is favorable for matching use, the moving groove 9 is formed in each of the two ends of the right angle fixing frame 1, the spring seat 7 is installed on one side of the moving groove 9, the reset spring 8 is installed on one side of the spring seat 7, the first telescopic rod 2 and the second telescopic rod 3 are respectively connected with one end of the reset spring 8 in the corresponding moving groove 9, the two moving grooves 9 are provided, the two reset springs 8 are provided, the structure installation is favorable, the first telescopic rod 2 is connected with the second telescopic rod 3 through the connecting rod 4, the connecting, the connecting is facilitated, the angle measuring component 5 is arranged on the first telescopic rod 2, and the extrusion positioning component 6 is arranged on the right-angle fixing frame 1; the angle measurement component 5 comprises an angle gauge 51, a first scribed line 52 and a second scribed line 53, the angle gauge 51 is fixed at the bottom of each of the ends of the first telescopic rod 2 and the second telescopic rod 3 through screws, the second scribed line 53 is carved on each of the first telescopic rod 2 and the second telescopic rod 3, the second scribed line 53 is perpendicular to the center of the bottom edge of the angle gauge 51, so that the angle value can be observed conveniently, the first scribed line 52 is carved at each of the two ends of the connecting rod 4, and the intersection point of the connecting rod 4 and the first telescopic rod 2 and the second telescopic rod 3 serves as a starting point at each of the ends of the first scribed line 52 and the second scribed line 53; the extrusion positioning assembly 6 comprises a rotating block 61, a threaded rod 62, a rubber pad 63, a fixed groove 64, a threaded hole 65 and a scale bar 66, wherein both ends of one side of the right-angle fixing frame 1 are provided with the threaded holes 65, the bottom end of the threaded hole 65 is provided with the fixed groove 64, the fixed groove 64 is communicated with the moving groove 9, both ends of one side of the right-angle fixing frame 1 are provided with the rotating block 61 at the position of the threaded hole 65, the bottom of the rotating block 61 is provided with the threaded rod 62, one end of the threaded rod 62 penetrates through the threaded hole 65 to be connected with the rubber pad 63, the rubber pad 63 is positioned; the first telescopic rod 2 is pulled outwards, meanwhile, the reset spring 8 connected with the first telescopic rod 2 is stretched, as the length of the connecting rod 4 is unchanged, the second telescopic rod 3 needs to be pushed towards the inner side of the moving groove 9, the reset spring 8 connected with the second telescopic rod 3 is compressed under stress, a triangle with an angle of 90 degrees is formed, different right triangles are favorably formed, multiple groups of data can be conveniently demonstrated and observed, meanwhile, as the reset spring 8 is arranged, the first telescopic rod 2 and the second telescopic rod 3 can be conveniently restored to the initial state and can be retracted into the moving groove 9, more space is not occupied, and the carrying is convenient; by observing the corresponding numerical values of the first reticle 52 and the second reticle 53 on the protractor 51, taking the difference value of the two numerical values as an angle value, recording the angle value between the connecting rod 4 and the first telescopic rod 2 and the second telescopic rod 3, calculating whether the sum of the two angle values is equal to 90 degrees, and facilitating the demonstration of the triangle inner angle and theorem; rotate turning block 61, drive threaded rod 62 and rotate, because threaded rod 62 and screw hole 65 threaded connection, make threaded rod 62 can reciprocate, thereby drive rubber pad 63 and reciprocate, twist turning block 61, make threaded rod 62 rotate downwards, drive rubber pad 63 and remove downwards, extrude first telescopic link 2 and second telescopic link 3, be favorable to fixing the position of first telescopic link 2 and second telescopic link 3, the length that first telescopic link 2 and second telescopic link 3 stretch out is read to rethread scale strip 66, be convenient for take notes the data of trilateral length value.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Portable triangle-shaped interior angle and demonstration ware, including right angle mount (1), first telescopic link (2), second telescopic link (3), connecting rod (4), angle measurement subassembly (5), extrusion locating component (6), spring holder (7), reset spring (8) and shifting chute (9), its characterized in that: the two ends of the right-angle fixing frame (1) are provided with moving grooves (9), a spring seat (7) is arranged on one side of each moving groove (9), a reset spring (8) is arranged on one side of each spring seat (7), the first telescopic rod (2) and the second telescopic rod (3) are respectively connected with one end of each reset spring (8) in the corresponding moving groove (9), the first telescopic rod (2) is connected with the second telescopic rod (3) through a connecting rod (4), an angle measuring assembly (5) is arranged on the first telescopic rod (2), and an extrusion positioning assembly (6) is arranged on the right-angle fixing frame (1);

the angle measurement assembly (5) comprises an angle gauge (51), a first scribing line (52) and a second scribing line (53), the bottom parts of one ends of the first telescopic rod (2) and the second telescopic rod (3) are respectively fixed with the angle gauge (51) through screws, the first telescopic rod (2) and the second telescopic rod (3) are respectively provided with the second scribing line (53), the two ends of the connecting rod (4) are respectively provided with the first scribing line (52), and the intersection point of the connecting rod (4) and the first telescopic rod (2) and the second telescopic rod (3) is taken as a starting point at one end of each of the first scribing line (52) and the second scribing line (53);

extrusion positioning assembly (6) include turning block (61), threaded rod (62), rubber pad (63), fixed slot (64), screw hole (65) and scale bar (66), threaded hole (65) have all been seted up at one side both ends of right angle mount (1), fixed slot (64) have been seted up to the bottom of screw hole (65), and fixed slot (64) and shifting chute (9) UNICOM, one side both ends of right angle mount (1) are located screw hole (65) position department and are provided with turning block (61), and threaded rod (62) are installed to the bottom of turning block (61), threaded hole (65) are passed to the one end of threaded rod (62) and are connected with rubber pad (63), rubber pad (63) are located the inside of fixed slot (64), threaded rod (62) and screw hole (65) threaded connection.

2. The portable triangular interior corner and presenter of claim 1, wherein: the number of the moving grooves (9) is two, and the number of the return springs (8) is two.

3. The portable triangular interior corner and presenter of claim 1, wherein: the second scribed line (53) is perpendicular to the center of the bottom edge of the protractor (51).

4. the portable triangular interior corner and presenter of claim 1, wherein: the lengths of the two sides of the right-angle fixing frame (1) are equal.

5. The portable triangular interior corner and presenter of claim 1, wherein: the connecting rod (4) is respectively connected with the first telescopic rod (2) and the second telescopic rod (3) through pin shafts.