CN211124616U

CN211124616U - High school physics lever teaching aid

Info

Publication number: CN211124616U
Application number: CN202020120651.5U
Authority: CN
Inventors: 郗家裕
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-07-28
Anticipated expiration: 2030-01-19

Abstract

The utility model discloses a high school physics lever teaching aid, including the lever main part, the inside one end of lever main part is equipped with first spout, and sliding connection installs first slider in the first spout, and one side fixed mounting of first slider has first pointer, and the top fixed mounting of first slider has first threaded rod, and first threaded rod cup joints and installs first threaded sleeve. In the utility model, the height of the lever can be adjusted through the telescopic action of the designed electric telescopic rod, and the designed rotating shaft enables the lever to be angularly adjusted, so that students in the back row can not see a lever teaching aid because the students in the front row can not block the sight line, thereby enhancing the teaching quality and effect; move the length that changes the arm of force through the slider in the spout, and the slider fixes a position fixedly through the combined action of threaded rod, threaded sleeve and locating plate, and can not remove easily after fixed to guarantee the stability at the in-process device of experiment.

Description

High school physics lever teaching aid

Technical Field

The utility model belongs to the technical field of the lever teaching aid device, particularly, relate to a high school physics lever teaching aid.

Background

The lever principle is also called as a 'lever balance condition', five elements of the lever are power, resistance, a power arm, a resistance arm and a fulcrum, and the two moments (the product of the force and the force arm) acting on the lever are required to be equal in size to balance the lever, namely, the power × power arm is the resistance arm of the resistance ×, and the algebraic expression is expressed as F1, L1, F2, L2 in the expression, F1 represents the power, L1 represents the power arm, F2 represents the resistance, and L2 represents the resistance arm.

The study tool of demonstration lever principle that uses at present is the lever of fulcrum between resistance and power, increases power and resistance through the mode that increases the weight, and the physics lever teaching aid of the high school that nevertheless has now still has following not enoughly:

1. the current high school physics lever teaching aid device can not adjust the height, and can not rotate, and then when making the mr show the lever to the student of equidirectional not, need remove whole lever, and is very troublesome.

2. The current high school physics lever teaching aid device is complicated to the regulation of the arm of force, and is comparatively loaded down with trivial details to the fixed process of arm of force length, and should fix insecure, leads to the lever unbalance easily, influences the teaching effect.

Therefore in order to solve the above problem, the utility model provides a high school physics lever teaching aid.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high school physics lever teaching aid to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high school physics lever teaching aid comprises a lever main body, wherein one end in the lever main body is provided with a first chute, a first slide block is installed in the first chute in a sliding connection manner, one side of the first slide block is fixedly provided with a first pointer, the top end of the first slide block is fixedly provided with a first threaded rod, the first threaded rod is sleeved with a first threaded sleeve, the top end of the first threaded sleeve is fixedly provided with a first positioning plate, the other end in the lever main body is provided with a third chute, a second slide block is installed in the third chute in a sliding connection manner, one side of the second slide block is fixedly provided with a second pointer, the top end of the second slide block is fixedly provided with a second threaded rod, the second threaded sleeve is sleeved with a second threaded sleeve, the top end of the second threaded sleeve is fixedly provided with a second positioning plate, and the middle part of the bottom end of the lever main body is provided, the bottom fixed mounting of electric telescopic handle has first fixed plate, the bottom fixed mounting of first fixed plate has the pivot, the second fixed plate is installed to the bottom of pivot.

Further, a first lifting rope is fixedly installed at the bottom end of the first sliding block, and a first weight tray is fixedly installed at the bottom end of the first lifting rope.

Furthermore, the top of lever main part is equipped with the second spout, first threaded rod with the second spout runs through sliding connection.

Further, one side top fixed mounting of lever main part has first scale plate, the bottom fixed mounting of first scale plate has first observation window.

Furthermore, a partition plate is fixedly installed between the first sliding groove and the third sliding groove.

Further, a second lifting rope is fixedly mounted at the bottom end of the second sliding block, and a second weight tray is fixedly mounted at the bottom end of the second lifting rope.

Furthermore, the top of lever main part is equipped with the fourth spout, the second threaded rod with fourth spout runs through sliding connection.

Further, one side fixed mounting of lever main part has the second scale plate, the bottom fixed mounting of second scale plate has the second observation window.

Further, the bottom fixed mounting of division board has the fixing base, the connecting axle is installed to the fixing base through connection, the connecting block is installed to the one end through connection of connecting axle, the bottom fixed mounting of connecting block has electric telescopic handle.

Furthermore, the bottom fixed mounting of second fixed plate has the base, the both sides of base are equipped with first collecting storage and second collecting storage respectively, all put the weight in first collecting storage with the second collecting storage.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses in, the height of lever can be adjusted through the telescopic action of the electric telescopic handle of design, and the pivot of design makes the lever can carry out angular adjustment, and then makes the classmate of back row can not be because of sheltering from the sight and can't see the lever teaching aid by the classmate of front bank to teaching quality and effect have been strengthened.

2. The utility model discloses in, remove the length that changes the arm of force through the slider in the spout, and the slider fixes a position fixedly through the combined action of threaded rod, threaded sleeve and locating plate, and can not remove easily after fixed to guarantee the stability at the in-process device of experiment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is a schematic view of a partial planar structure of the present invention.

Reference numerals:

1. a lever body; 2. a first chute; 201. a first slider; 202. a first pointer; 203. a first threaded rod; 304. a first threaded sleeve; 205. a first positioning plate; 206. a first lifting rope; 207. a first weight pan; 208. a second chute; 209. a first observation window; 210. a first scale plate; 3. a third chute; 301. a second slider; 302. a second pointer; 303. a second threaded rod; 304. a second threaded sleeve; 305. A second positioning plate; 306. a second lifting rope; 307. a second weight tray; 308. a fourth chute; 309. a second observation window; 310. a second scale plate; 4. a partition plate; 5. a fixed seat; 501. a connecting shaft; 502. connecting blocks; 6. an electric telescopic rod; 601. a first fixing plate; 602. a rotating shaft; 603. a second fixing plate; 7. A base; 701. a first storage bin; 702. a second storage bin.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

referring to fig. 1-2, a high school physics lever teaching aid according to an embodiment of the present invention includes a lever main body 1, a first sliding groove 2 is disposed at one end inside the lever main body 1, a first sliding block 201 is slidably connected and mounted in the first sliding groove 2, a first pointer 202 is fixedly mounted at one side of the first sliding block 201, a first threaded rod 203 is fixedly mounted at the top end of the first sliding block 201, a first threaded sleeve 204 is sleeved and mounted on the first threaded rod 203, a first positioning plate 205 is fixedly mounted at the top end of the first threaded sleeve 204, a third sliding groove 3 is disposed at the other end inside the lever main body 1, a second sliding block 301 is slidably connected and mounted in the third sliding groove 3, a second pointer 302 is fixedly mounted at one side of the second sliding block 301, a second threaded rod 303 is fixedly mounted at the top end of the second sliding block 301, a second threaded sleeve 304 is sleeved and mounted on the second threaded rod 303, second locating plate 305 is fixedly mounted at the top end of second threaded sleeve 304, the bottom mid-mounting of lever main body 1 has electric telescopic handle 6, electric telescopic handle 6's bottom fixed mounting has first fixed plate 601, the bottom fixed mounting of first fixed plate 601 has pivot 602, second fixed plate 603 is installed to the bottom of pivot 602.

Through the above scheme of the present invention, the bottom end of the first slider 201 is fixedly installed with the first lifting rope 206, and the bottom end of the first lifting rope 206 is fixedly installed with the first weight tray 207; the top end of the lever main body 1 is provided with a second sliding groove 208, and the first threaded rod 203 is connected with the second sliding groove 208 in a penetrating and sliding manner; a first scale plate 210 is fixedly installed at the top end of one side of the lever main body 1, and a first observation window 209 is fixedly installed at the bottom end of the first scale plate 210; a partition plate 4 is fixedly arranged between the first chute 2 and the third chute 3; a second lifting rope 306 is fixedly installed at the bottom end of the second sliding block 301, and a second weight tray 307 is fixedly installed at the bottom end of the second lifting rope 306; a fourth sliding groove 308 is formed in the top end of the lever body 1, and the second threaded rod 303 is connected with the fourth sliding groove 308 in a penetrating and sliding manner; a second scale plate 310 is fixedly installed on one side of the lever main body 1, and a second observation window 309 is fixedly installed at the bottom end of the second scale plate 310; a fixed seat 5 is fixedly installed at the bottom end of the partition plate 4, the fixed seat 5 is provided with a connecting shaft 501 in a penetrating manner, one end of the connecting shaft 501 is provided with a connecting block 502 in a penetrating manner, and the bottom end of the connecting block 502 is fixedly provided with the electric telescopic rod 6; the bottom fixed mounting of second fixed plate 603 has base 7, the both sides of base 7 are equipped with first collecting storage 701 and second collecting storage 702 respectively, all put the weight in first collecting storage 701 with second collecting storage 702.

In a specific application, the first slider 201 moves in the first sliding chute 2, so that the length of L1 can be adjusted, when the position of L1 is determined, the position of the first slider 201 is positioned through the combined action of the first threaded rod 203, the first threaded sleeve 204 and the first positioning plate 205, the length of L1 is intuitively known through the corresponding scales on the first pointer 202 and the first scale plate 210, the length of L2 can be adjusted, when the position of L2 is determined, the position of the second slider 301 is positioned through the combined action of the second threaded rod 303, the second threaded sleeve 304 and the second positioning plate 305, the length of L2 is intuitively known through the corresponding scales on the second pointer 302 and the second scale plate 310, weights are respectively placed in the first weight tray 207 and the second weight tray 307, so that the levers are balanced, through the height adjustment of the electric lever, and the telescopic angle of the telescopic rod 602 can be obtained through the telescopic action of the electric lever.

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. The high school physics lever teaching aid is characterized by comprising a lever main body (1), wherein one end inside the lever main body (1) is provided with a first chute (2), the first chute (2) is internally provided with a first slider (201) in a sliding connection manner, one side of the first slider (201) is fixedly provided with a first pointer (202), the top end of the first slider (201) is fixedly provided with a first threaded rod (203), the first threaded rod (203) is sleeved with a first threaded sleeve (204), the top end of the first threaded sleeve (204) is fixedly provided with a first positioning plate (205), the other end inside the lever main body (1) is provided with a third chute (3), the third chute (3) is internally provided with a second slider (301) in a sliding connection manner, one side of the second slider (301) is fixedly provided with a second pointer (302), and the top end of the second slider (301) is fixedly provided with a second threaded rod (303), second threaded rod (303) cup joints and installs second threaded sleeve (304), the top fixed mounting of second threaded sleeve (304) has second locating plate (305), the bottom mid-mounting of lever main part (1) has electric telescopic handle (6), the bottom fixed mounting of electric telescopic handle (6) has first fixed plate (601), the bottom fixed mounting of first fixed plate (601) has pivot (602), second fixed plate (603) are installed to the bottom of pivot (602).

2. The high school physics lever teaching aid as claimed in claim 1, wherein the bottom end of the first slider (201) is fixedly mounted with a first lifting rope (206), and the bottom end of the first lifting rope (206) is fixedly mounted with a first weight tray (207).

3. A high school physics lever teaching aid according to claim 1, characterized in that the top of the lever main body (1) is provided with a second sliding groove (208), and the first threaded rod (203) is connected with the second sliding groove (208) in a penetrating and sliding manner.

4. A high school physics lever teaching aid according to claim 1, characterized in that one side top of lever main part (1) is fixed with first scale plate (210), the bottom fixed mounting of first scale plate (210) has first observation window (209).

5. A high school physics lever teaching aid according to claim 1, characterized in that a partition plate (4) is fixedly mounted between the first chute (2) and the third chute (3).

6. The high school physics lever teaching aid as claimed in claim 1, wherein the bottom end of the second slider (301) is fixedly mounted with a second lifting rope (306), and the bottom end of the second lifting rope (306) is fixedly mounted with a second weight tray (307).

7. A high school physics lever teaching aid according to claim 1, characterized in that the top of the lever main body (1) is provided with a fourth sliding groove (308), and the second threaded rod (303) is connected with the fourth sliding groove (308) in a penetrating and sliding manner.

8. A high school physics lever teaching aid according to claim 1, characterized in that one side of the lever main body (1) is fixedly mounted with a second scale plate (310), and the bottom end of the second scale plate (310) is fixedly mounted with a second observation window (309).

9. A high school physics lever teaching aid according to claim 5, characterized in that the bottom fixed mounting of division board (4) has fixing base (5), connecting axle (501) is installed to fixing base (5) through connection, connecting block (502) is installed to the one end through connection of connecting axle (501), the bottom fixed mounting of connecting block (502) has electric telescopic handle (6).

10. The high school physics lever teaching aid according to claim 1, wherein a base (7) is fixedly mounted at the bottom end of the second fixing plate (603), a first storage bin (701) and a second storage bin (702) are respectively arranged at two sides of the base (7), and weights are placed in the first storage bin (701) and the second storage bin (702).