CN211827826U

CN211827826U - Convex lens teaching aid for physical teaching

Info

Publication number: CN211827826U
Application number: CN202020801635.2U
Authority: CN
Inventors: 闵杰
Original assignee: Jiangsu Vocational College of Finance and Economics
Current assignee: Jiangsu Vocational College of Finance and Economics
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-10-30
Anticipated expiration: 2030-05-14

Abstract

The utility model discloses a convex lens teaching aid for physical teaching relates to physical teaching technical field, the on-line screen storage device comprises a base, the base top is provided with first mount table, first mount table top is "return" font and is provided with first fixed block and second fixed block respectively, the all swing joint in L shape both sides limit of second fixed block has two sets of compact heap, one side at base top is fixed with the second mount table, the inside sliding connection of second mount table has the sliding block, the inside rotation of sliding block is connected with the activity and runs through the connecting rod of second mount table. The utility model discloses a set up the experimental object fixed establishment who comprises first mount table, first fixed block, second fixed block and compact heap on the base, can carry out the rigidity to the experimental object, avoid the experimental object to rock, through set up convex lens in experimental object fixed establishment top, can assemble the light, for spotlight experiment provides the instrument.

Description

Convex lens teaching aid for physical teaching

Technical Field

The utility model relates to a physical teaching technical field specifically is a convex lens teaching aid for physical teaching.

Background

Convex lens is a common lens, it is middle thick, the edge is thin, at least a surface makes the sphere, the sphere is all made to the two sides of doing, convex lens has the effect of assembling light, can regard as the condensing lens to use, in the teaching of current physics spotlight experiment, often all be the teacher hold the manual spotlight point of looking for convex lens of convex lens, the teacher holds the convex lens for a long time and can appear the condition that tired hand trembles, further then can lead to the spotlight point to rock, unstability, influence the result of teaching experiment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the manual spotlight point of looking for convex lens of teacher, hold convex lens for a long time and the condition that tired hand trembled appears, further can lead to the spotlight point to rock, unstable, influence the problem of the result of teaching experiment, provide a convex lens teaching aid for physical teaching.

In order to achieve the above object, the utility model provides a following technical scheme:

a convex lens teaching aid for physics teaching comprises a base, wherein a first mounting table is arranged at the top of the base, a first fixed block and a second fixed block are respectively arranged at the top of the first mounting table in a 'return' shape, two groups of pressing blocks are movably connected at two L-shaped side edges of the second fixed block, a second mounting table is fixed at one side of the top of the base, a sliding block is slidably connected inside the second mounting table, a connecting rod movably penetrating through the second mounting table is rotatably connected inside the sliding block, a convex lens is arranged at one end of the connecting rod close to the first mounting table, a first handle is arranged at the other end of the connecting rod, a lead screw movably penetrating through the upper part of the second mounting table is rotatably connected at the top of the sliding block, the lead screw is in threaded connection with the second mounting table, and a plurality of groups of fixed pins are arranged at one vertical side of the, the one end that the fixed pin is close to convex lens is connected with the connecting rod.

In the utility model discloses a preferred embodiment, the sliding block is inside to be provided with rolling bearing, and the sliding block is connected with the connecting rod through rolling bearing, be provided with the snap ring between rolling bearing and the second mount table inner wall.

In a preferred embodiment of the present invention, the fixing pins are uniformly distributed according to the moving position of the convex lens.

In the utility model discloses a preferred embodiment, the sliding block top is provided with universal axis of rotation, and the sliding block rotates through universal axis of rotation and is connected with the lead screw, the lead screw top is connected with the second handle.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up the experimental object fixed establishment who comprises first mount table on the base, first fixed block, second fixed block and compact heap, can carry out the rigidity to the experimental object, avoid the experimental object to rock, through set up convex lens in experimental object fixed establishment top, can assemble the light, for spotlight experiment provides the instrument, through set up by the second mount table on the base, the sliding block, rolling bearing, the connecting rod, first handle, the snap ring, universal axis of rotation, the lead screw, the second handle, the convex lens position gesture adjustment mechanism that the fixed pin constitutes, can carry out attitude adjustment and fixed to convex lens, make things convenient for the teacher to adjust convex lens and look for the spotlight point, and is simple and practical, save physical power.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a left side view of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is an enlarged view of the structure of part a of the present invention.

Fig. 5 is an enlarged view of the structure of part B of the present invention.

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. 1-5, a convex lens teaching aid for physics teaching comprises a base 1, a first mounting platform 2 is arranged on the top of the base 1, a first fixing block 3 and a second fixing block 4 are respectively arranged on the top of the first mounting platform 2 in a shape of Chinese character 'hui', two groups of pressing blocks 5 are movably connected on both sides of an L shape of the second fixing block 4, a second mounting platform 6 is fixed on one side of the top of the base 1, a sliding block 7 is slidably connected inside the second mounting platform 6, a connecting rod 9 movably penetrating through the second mounting platform 6 is rotatably connected inside the sliding block 7, a convex lens 11 is arranged at one end of the connecting rod 9 close to the first mounting platform 2, a first handle 10 is arranged at the other end of the connecting rod 9, a lead screw 14 movably penetrating through the top of the second mounting platform 6 is rotatably connected on the top of the sliding block 7, the lead screw 14 is in threaded connection with the second mounting platform 6, a plurality of fixing pins 16 are arranged, one end of the fixing pin 16 near the convex lens 11 is connected to the connecting rod 9.

The utility model discloses a set up the experimental object fixed establishment who comprises first mount table 2 on base 1, first fixed block 3, second fixed block 4 and compact heap 5, can carry out the rigidity to the experimental object, avoid the experimental object to rock, through set up convex lens 11 in experimental object fixed establishment top, can assemble the light, for spotlight experiment provides the instrument, through set up by second mount table 6 on base 1, sliding block 7, connecting rod 9, first handle 10, lead screw 14, the convex lens position gesture adjustment mechanism that fixed pin 16 constitutes, can carry out attitude adjustment and fixed to convex lens 11, make things convenient for the teacher to adjust convex lens 11 and look for the spotlight point, and is simple and practical, save physical power.

Please refer to fig. 1 and 2 again, the inside rolling bearing 8 that is provided with of sliding block 7, and sliding block 7 is connected with connecting rod 9 through rolling bearing 8, is provided with snap ring 12 between rolling bearing 8 and the 6 inner walls of second mount table, the utility model discloses an at the inside rolling bearing 8 that is provided with of sliding block 7, can make things convenient for connecting rod 9 to rotate, through set up snap ring 12 between rolling bearing 8 and the 6 inner walls of second mount table, can carry on spacingly to rolling bearing 8.

Please refer to fig. 2, the fixing pins 16 are uniformly distributed according to the moving position of the convex lens 11, and the utility model can fix the convex lens 11 at each position by arranging a plurality of groups of fixing pins 16.

Please refer to fig. 1 heavily, the top of the sliding block 7 is provided with a universal rotating shaft 13, and the sliding block 7 is rotatably connected with a lead screw 14 through the universal rotating shaft 13, and the top of the lead screw 14 is connected with a second handle 15, the utility model discloses a set up the universal rotating shaft 13 between the sliding block 7 and the lead screw 14, drive the sliding block 7 to reciprocate when making things convenient for the lead screw 14 to rotate, through set up the second handle 15 at the top of the lead screw 14, can facilitate the use.

The working principle is as follows: when in use, the experimental object is firstly placed beside the L-shaped side edge of the first fixing block 3 of the first utility model on the first mounting platform 2, then the experimental object is compressed by rotating the multiple groups of compressing blocks 5, after the experimental object is fixed, the second handle 15 is rotated firstly, the second handle 15 drives the screw rod 14, the universal rotating shaft 13, the sliding block 7, the rotating bearing 8, the connecting rod 9, the first handle 10, the convex lens 11 moves up and down along the vertical direction, after the proper height is reached, the first handle 10 is rotated, the first handle 10 drives the connecting rod 9, the convex lens 11 rotates jointly, the convex lens 11 is adjusted to the proper posture, the proper posture of the convex lens 11 is found, the fixing pin 16 with the height corresponding to the convex lens 11 at the current time is rotated, the connecting rod 9 is fixed, the connecting rod 9 is prevented from driving the convex lens 11 to rotate, the convex lens 11 converges light, and a light-gathering point appears.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a convex lens teaching aid for physical teaching, includes the base, its characterized in that: the top of the base is provided with a first mounting table, the top of the first mounting table is provided with a first fixing block and a second fixing block in a shape of Chinese character 'hui', two groups of pressing blocks are movably connected with two L-shaped side edges of the second fixing block, a second mounting table is fixed on one side of the top of the base, a sliding block is connected inside the second mounting table in a sliding manner, a connecting rod movably penetrating through the second mounting table is rotatably connected inside the sliding block, a convex lens is arranged at one end of the connecting rod close to the first mounting table, the other end of the connecting rod is provided with a first handle, the top of the sliding block is rotatably connected with a screw rod which movably penetrates through the upper part of the second mounting table, and the lead screw is in threaded connection with the second mounting table, a plurality of groups of fixing pins are arranged on one vertical side of the connecting rod on the outer wall of the second mounting table, and one ends of the fixing pins, which are close to the convex lenses, are connected with the connecting rod.

2. A convex lens teaching aid for physics teaching according to claim 1, wherein: the sliding block is internally provided with a rotating bearing, the sliding block is connected with a connecting rod through the rotating bearing, and a clamping ring is arranged between the rotating bearing and the inner wall of the second mounting platform.

3. A convex lens teaching aid for physics teaching according to claim 1, wherein: the fixing pins are uniformly distributed according to the moving position of the convex lens.

4. A convex lens teaching aid for physics teaching according to claim 1, wherein: the sliding block top is provided with universal axis of rotation, and the sliding block rotates through universal axis of rotation and is connected with the lead screw, the lead screw top is connected with the second handle.