CN109830154B

CN109830154B - Physical convex lens experiment demonstration device

Info

Publication number: CN109830154B
Application number: CN201910211502.1A
Authority: CN
Inventors: 程淑鑫; 焦宗芳; 王会敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2020-11-13
Anticipated expiration: 2039-03-20
Also published as: CN109830154A

Abstract

The invention relates to the technical field of physical experiments, in particular to a physical convex lens experiment demonstration device which comprises a base, wherein four corners of the bottom end of the base are all connected with universal wheels through screws, a storage box is connected with the right side of the top end of the base through screws, a marking card is embedded in the front side surface of the storage box, the central position of the upper surface of the base is connected with one end of a supporting rod through a screw, the other end of the supporting rod is connected with an angle adjusting mechanism through a screw, and the left side of the angle adjusting mechanism is connected with a demonstration mechanism through a screw. The angle adjusting mechanism can adjust the rotating angle of the demonstration mechanism to enable the convex lens to correspond to the direct sunlight angle, the demonstration mechanism can intuitively demonstrate the physical convex lens experiment to demonstrate the focusing focus of the convex lens in the experiment, the accuracy of the experiment is improved, and the demonstration mechanism is more suitable for wide popularization.

Description

Physical convex lens experiment demonstration device

Technical Field

The invention relates to the technical field of physical experiments, in particular to a physical convex lens experiment demonstration device.

Background

Physics is the subject of studying the most general laws of motion and basic structures of substances. As the leading subject of natural science, physics studies to universe, and as small as the most basic motion form and law of all substances such as basic particles, etc., the theory structure of the lens fully uses mathematics as the work language of the lens, takes the experiment as the only standard for checking the correctness of theory, is the most precise natural science subject at present, and the convex lens is manufactured according to the refraction principle of light. The convex lens is a lens with thicker center and thinner edge, the experiment refers to one of the basic methods of scientific research, according to the purpose of scientific research, the external influence is eliminated as much as possible, the main factors are highlighted, and some special instruments and equipment are utilized, and the research objects are artificially reformed, controlled or simulated, so that some things (or processes) occur or reappear, thereby the natural phenomena, the natural properties and the natural laws are known, the existing demonstration has the defects of insufficient intuition, time and labor waste, large experimental error and the like, and the research and development of a physical convex lens experiment demonstration device are urgently needed.

Disclosure of Invention

The invention aims to solve the problems of insufficient intuition, time and labor waste, large test error and the like in the prior art, and provides a physical convex lens experiment demonstration device.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a physics convex lens experiment presentation device, includes the base, the equal screw connection in bottom four corners of base has the universal wheel, the top right side screw connection of base has the storing box, the front side surface of storing box is inlayed and is had the marking card, the upper surface central point of base puts the one end that screw connection has branch, the other end screw connection of branch has angle adjustment mechanism, angle adjustment mechanism's left side screw connection has demonstration mechanism.

Preferably, the angle adjusting mechanism comprises a hollow disc, a solid disc is inserted into an inner cavity of the hollow disc, jacks are continuously formed in the circumference of the outer wall of the solid disc, a bolt is connected to the top end of the hollow disc in a threaded manner, the bottom end of the bolt extends into the hollow disc to be inserted into the jacks, an outer ring of a bearing is embedded in the center of the outer wall of the left side of the hollow disc, an inner ring of the bearing is in interference fit with a shaft rod, one end of the shaft rod extends into the center of the outer wall of the left side of the hollow disc and the center of the outer wall of the left side of the solid disc, and the other.

Preferably, the demonstration mechanism includes the rectangular plate, the T-shaped groove has been seted up to the inner wall of rectangular plate, the inner chamber in T-shaped groove is pegged graft and is had the T-shaped piece, the top screwed connection of T-shaped piece has the support plate, the equal screwed connection in the top left and right sides of support plate has the cassette, the equal screwed connection in the left and right sides of support plate has the pointer, the upper surface left and right sides of rectangular plate has the scale mark from last to all carving down, the right side outer wall screwed connection of rectangular plate has the second connecting seat, the top screwed connection of rectangular plate has the spill seat, the round hole has all been seted up at both ends about the outer wall of spill seat, the bottom screwed connection of rectangular plate has the U-shaped seat, the inner wall bottom screwed connection of U-shaped seat has electric putter's one end, and.

Preferably, the left outer wall of the first connecting seat is in screw connection with the right outer wall of the second connecting seat.

Preferably, the U-shaped seat, the rectangular plate and the concave seat are sequentially arranged from front to back.

Preferably, the first connecting seat, the shaft rod and the solid disc are arranged from left to right in sequence.

The invention has the beneficial effects that:

1. the angle adjusting mechanism can adjust the rotating angle of the demonstration mechanism, so that the convex lens corresponds to the direct sunlight angle, the demonstration test is convenient to carry out, the time and the labor are saved, and the efficiency of the physical convex lens test is improved.

2. The invention can visually demonstrate the physical convex lens experiment through the demonstration mechanism, demonstrates the focusing focus of the convex lens in the experiment, and improves the accuracy of the experiment because the distance between the convex lens and the white paper is the focal length of the convex lens in the experiment, thereby being more suitable for wide popularization.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of the demonstration mechanism of the present invention;

FIG. 3 is an enlarged view of the invention at A;

fig. 4 is a sectional view of the angle adjustment mechanism of the present invention.

In the figure: 1. the base, 2, universal wheel, 3, branch, 4, storing box, 5, mark card, 6, angle adjustment mechanism, 601, hollow disc, 602, solid disc, 603, jack, 604, bolt, 605, bearing, 606, axostylus axostyle, 607, first connecting seat, 7, demonstration mechanism, 701, rectangular plate, 702, T-slot, 703, T-shaped piece, 704, support plate, 705, cassette, 706, pointer, 707, scale mark, 708, second connecting seat, 709, concave seat, 710, round hole, 711, U-shaped seat, 712, electric putter.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a physical convex lens experiment demonstration device comprises a base 1, universal wheels 2 are screwed at four corners of the bottom end of the base 1, the universal wheels 2 facilitate movement of the base 1, a storage box 4 is screwed at the right side of the top end of the base 1, the storage box 4 is used for storing convex lenses of various models, a marking card 5 is inlaid on the front side surface of the storage box 4, the marking card 5 marks the convex lenses, one end of a supporting rod 3 is screwed at the center of the upper surface of the base 1, the other end of the supporting rod 3 is screwed with an angle adjusting mechanism 6, the angle adjusting mechanism 6 comprises a hollow disc 601, a solid disc 602 is inserted into the inner cavity of the hollow disc 601, insertion holes 603 are continuously formed in the circumference of the outer wall of the solid disc 602, a bolt 604 is screwed at the top end of the hollow disc 601, and the bottom end of the bolt 604, the center of the outer wall of the left side of the hollow disc 601 is inlaid with an outer ring of a bearing 605, the inner ring of the bearing 605 is in interference fit with a shaft lever 606, one end of the shaft lever 606 extends into the center of the outer wall of the left side of the hollow disc 601 and the solid disc 602, the other end of the shaft lever 606 is in screwed connection with a first connecting seat 607, the bearing 605 facilitates the rotation between the shaft lever 606 and the hollow disc 601, the first connecting seat 607, the shaft lever 606 and the solid disc 602 are sequentially arranged from left to right, the left side of the angle adjusting mechanism 6 is in screwed connection with a demonstration mechanism 7, the demonstration mechanism 7 comprises a rectangular plate 701, the inner wall of the rectangular plate 701 is provided with a T-shaped groove 702, the inner cavity of the T-shaped groove 702 is inserted with a T-shaped block 703, the top end of the T-shaped block 703 is in screwed connection with a carrier plate 704, the left side and the right side of the top end of, rectangular plate 701's right side outer wall screwed connection has second connecting seat 708, rectangular plate 701's top screwed connection has concave seat 709, round hole 710 has all been seted up at both ends about concave seat 709's the outer wall, rectangular plate 701's bottom screwed connection has U-shaped seat 711, U-shaped seat 711's inner wall bottom screwed connection has electric putter 712's one end, and electric putter 712's other end screwed connection has the front side at T-shaped piece 703, the left side outer wall of first connecting seat 607 and second connecting seat 708's right side outer wall screwed connection, U-shaped seat 711, rectangular plate 701 and concave seat 709 arrange in proper order after to in the past.

The working principle is as follows: when the invention is used for demonstrating a physical convex lens experiment, the experiment is prepared, a handle of a convex lens is inserted into a round hole 710, white paper is placed between two clamping seats 705, a base 1 is placed in a place with illumination, the experiment is started, a first connecting seat 607 is rotated clockwise or anticlockwise, the first connecting seat 607 drives a solid disc 602 to rotate clockwise or anticlockwise along the inner wall of a hollow disc 601 through a shaft lever 606, the first connecting seat 607 drives a rectangular plate 701 to rotate clockwise or anticlockwise through a second connecting seat 708, when the convex lens corresponds to the illumination angle, a bolt 604 is rotated clockwise, the bolt 604 is screwed into a jack 603 with the corresponding angle, the adjusted angle is fixed, an external power supply of an electric push rod 712 is switched on, the electric push rod 712 drives a T-shaped block 703 to move back and forth along the inner wall of a T-shaped groove 702 after working, the T-shaped block 703 drives the white paper to move back and forth through a support plate 704 and the clamping seats, until the sunlight refracted by the convex lens is focused on a point on the surface of the white paper, the scale mark 707 pointed by the pointer 706 is the focal length of the convex lens to obtain experimental data, so that the demonstration test is convenient to carry out, time and labor are saved, the accuracy of the experiment is improved, and the method is more suitable for wide popularization.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a physics convex lens experiment presentation device, includes base (1), the equal screw connection in bottom four corners of base (1) has universal wheel (2), its characterized in that: the right side of the top end of the base (1) is connected with a storage box (4) through a screw, a marking card (5) is inlaid on the front side surface of the storage box (4), the central position of the upper surface of the base (1) is connected with one end of a supporting rod (3) through a screw, the other end of the supporting rod (3) is connected with an angle adjusting mechanism (6) through a screw, and the left side of the angle adjusting mechanism (6) is connected with a demonstration mechanism (7) through a screw; the angle adjusting mechanism (6) comprises a hollow disc (601), a solid disc (602) is inserted into an inner cavity of the hollow disc (601), jacks (603) are continuously formed in the circumference of the outer wall of the solid disc (602), a bolt (604) is connected to the top end of the hollow disc (601) in a threaded manner, the bottom end of the bolt (604) extends into the hollow disc (601) to be inserted into the jacks (603), the outer ring of a bearing (605) is embedded in the center of the outer wall of the left side of the hollow disc (601), a shaft lever (606) is in interference fit with the inner ring of the bearing (605), one end of the shaft lever (606) extends into the hollow disc (601) to be connected with the center of the outer wall of the left side of the solid disc (602), and a first connecting seat (607) is in screwed connection with the other end of the; the demonstration mechanism (7) comprises a rectangular plate (701), a T-shaped groove (702) is formed in the inner wall of the rectangular plate (701), a T-shaped block (703) is inserted into the inner cavity of the T-shaped groove (702), a carrier plate (704) is connected to the top end of the T-shaped block (703) through screws, clamping seats (705) are connected to the left side and the right side of the top end of the carrier plate (704) through screws, pointers (706) are connected to the left side and the right side of the upper surface of the rectangular plate (701) through screws, scale marks (707) are engraved on the left side and the right side of the upper surface of the rectangular plate (701) from top to bottom, a second connecting seat (708) is connected to the outer wall of the right side of the rectangular plate (701) through screws, a concave seat (709) is connected to the top end of the rectangular plate (701) through screws, round holes (710), the bottom end of the inner wall of the U-shaped seat (711) is connected with one end of an electric push rod (712) through a screw, and the other end of the electric push rod (712) is connected with the front side of the T-shaped block (703) through a screw.

2. The physical convex lens experiment demonstration device according to claim 1, wherein the left outer wall of the first connection seat (607) is screwed with the right outer wall of the second connection seat (708).

3. The physical convex lens experiment demonstration device according to claim 1, wherein the U-shaped seat (711), the rectangular plate (701) and the concave seat (709) are arranged in sequence from front to back.

4. The physical convex lens experiment demonstration device according to claim 1, wherein the first connection seat (607), the shaft rod (606) and the solid disc (602) are arranged in sequence from left to right.