Physical experiment demonstration instrument

Abstract

The utility model discloses a physical experiment demonstration device which comprises an outer optical bench, two groups of first limiting rails are fixedly connected to the upper portion of the outer optical bench, inner optical bench bodies are slidably connected to the interiors of the two sides of the outer optical bench, two groups of second limiting rails are fixedly connected to the upper portions of the inner optical bench bodies, and a communicating groove is formed in the upper portion of the outer optical bench body. The second limiting rail is slidably connected to the interior of the communicating groove, a plurality of sets of moving blocks are slidably connected to the outer sides of the first limiting rail and the second limiting rail, two sets of first connecting plates are fixedly connected to the upper portion of the moving block on one side, and a rotating shaft is rotatably connected between the first connecting plates on the two sides; the outer side of the rotating shaft is fixedly connected with two groups of second connecting plates which are perpendicular to each other, and the outer sides of the same group of second connecting plates are fixedly connected with two groups of mounting hoops, so that the length size of equipment can be reduced, the situation that the equipment is too long and difficult to store and transport is prevented, meanwhile, a concave-convex lens and a convex lens can be automatically switched, and height change during lens switching is prevented; and the comparison effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to teaching equipment technical field, concretely is a physical experiment demonstration equipment. BACKGROUND

[0002] Lens experiment is an important experiment for studying the imaging law of lens in physics, through experimental observation and measurement, the imaging law of convex lens and concave lens is understood and mastered, including the relationship between object distance, image distance and the nature of image (upright or inverted, enlarged or reduced, real image or virtual image).

[0003] The light holder of the traditional lens utility device is too long, resulting in that the space occupied by the device is too long, and the device is difficult to transport, and when the single lens experiment is completed, the lens needs to be disassembled and another lens is installed, so that the contrast effect is not obvious, and the height is easy to change, affecting normal imaging. INVENTION CONTENTS

[0004] The utility model discloses a physical experiment demonstration equipment to solve the problem in the background art.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a physical experiment demonstration equipment, including outer light holder, the outer light holder upper portion is fixedly connected with two groups of first limit rail, the both sides of outer light holder are slidably connected with inner light holder, the inner light holder upper portion is fixedly connected with two groups of second limit rail, the outer light holder upper portion is opened with the communication groove, the second limit rail is slidably connected in the communication groove, the first limit rail and the second limit rail outside are slidably connected with a plurality of groups of moving block, one side moving block upper portion is fixedly connected with two groups of first connecting plate, the both sides first connecting plate are rotatably connected with rotating shaft, the rotating shaft outside is fixedly connected with two groups of second connecting plate that are perpendicular to each other, and the same group second connecting plate outside is fixedly connected with two groups of mounting hoop.

[0006] Preferably, the rotating shaft both ends are fixedly connected with connecting seat, the connecting seat inside is slidably connected with sliding rod, the sliding rod is fixedly connected with fixed sheet away from first connecting plate side, the fixed sheet and connecting seat are fixedly connected with first spring, the first spring is sleeved on the sliding rod outside, the sliding rod other end is fixedly connected with convex, the first limit plate inside is opened with two groups of recess that are matched with convex.

[0007] Preferably, the mounting hoop is set to be the elastic structure, the mounting hoop both sides inside are screw connected with second jack screw, the moving block lower portion both sides are fixedly connected with connecting plate, the connecting plate inside is screw connected with first jack screw.

[0008] Preferably, the outer optical bench lower part is provided with a limiting groove, the inner optical bench one end is fixedly connected with a bending piece, the bending piece penetrates the limiting groove upper part and is slidably connected with a locking rod, and the outer optical bench lower part is provided with a locking hole matched with the locking rod.

[0009] Preferably, the locking rod one end is fixedly connected with a pulling piece, the pulling piece and the bending piece are fixedly connected with a second spring, and the second spring is sleeved on the locking rod outside.

[0010] Preferably, a group of the moving blocks upper part is fixedly connected with a mounting seat, the mounting seat inner side lower part is rotatably connected with a lower bevel gear, the lower bevel gear upper part is meshingly connected with an upper bevel gear, the upper bevel gear outside penetrates the mounting seat and is fixedly connected with a rotating cap, the lower bevel gear upper part is fixedly connected with a threaded rod, the threaded rod outside is threadedly connected with a lifting plate, the lifting plate upper part both sides are fixedly connected with a third connecting plate, the third connecting plate upper part penetrates the mounting seat inner side and is fixedly connected with a connecting rod, and the connecting rod other end is fixedly connected with a mounting cylinder.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、 the utility model discloses a telescopic lens device, which comprises an outer optical bench, an inner optical bench, a first spring, a sliding rod, a convex platform, a concave groove, a fixed sheet, a convex mirror, a concave mirror, a second spring, a locking rod, a limiting groove, a bending piece, a rotating cap, an upper bevel gear, a lower bevel gear, a threaded rod, a lifting plate, a third connecting plate, a connecting rod and a mounting cylinder.

[0013] 2、 the utility model discloses a telescopic lens device, which comprises an outer optical bench, an inner optical bench, a first spring, a sliding rod, a convex platform, a concave groove, a fixed sheet, a convex mirror, a concave mirror, a second spring, a locking rod, a limiting groove, a bending piece, a rotating cap, an upper bevel gear, a lower bevel gear, a threaded rod, a lifting plate, a third connecting plate, a connecting rod and a mounting cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the first perspective three-dimensional structure schematic diagram of the utility model.

[0015] Figure 2 It is the second perspective bending piece structure schematic diagram of the utility model.

[0016] Figure 3 It is the third perspective mounting hoop structure schematic diagram of the utility model.

[0017] Figure 4The fourth visual angle connecting seat structure schematic view of the utility model shows;

[0018] Figure 5 The fifth visual angle mounting seat structure sectional view of the utility model shows.

[0019] In the figure: 1, outer optical seat; 2, first limiting rail; 3, inner optical seat; 4, second limiting rail; 5, moving block; 6, connecting plate; 7, first top screw; 8, first connecting plate; 9, rotating shaft; 10, second connecting plate; 11, mounting hoop; 12, second top screw; 13, connecting seat; 14, sliding rod; 15, boss; 16, fixed sheet; 17, first spring; 18, recess; 19, limiting groove; 20, bending sheet; 21, pulling sheet; 22, locking rod; 23, second spring; 24, locking hole; 25, communication groove; 26, mounting seat; 27, lower bevel gear; 28, upper bevel gear; 29, rotating cap; 30, threaded rod; 31, lifting plate; 32, third connecting plate; 33, connecting rod; 34, mounting cylinder. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a physical experiment demonstration equipment, including outer optical seat 1, two groups of first limiting rail 2 are fixedly welded on the upper portion of outer optical seat 1, inner optical seat 3 is slidably installed in the inside of outer optical seat 1 two sides, two groups of second limiting rail 4 are fixedly welded on the upper portion of inner optical seat 3, communication groove 25 is provided in the upper portion of outer optical seat 1, second limiting rail 4 is slidably installed in the inside of communication groove 25, by moving inner optical seat 3 along outer optical seat 1, the equipment is realized equipment's storage and release, prevent equipment too long, a plurality of groups of moving block 5 are slidably installed on the outside of first limiting rail 2 and second limiting rail 4, first limiting rail 2 and second limiting rail 4 are same height, ensure that moving block 5 is not jammed when moving from outer optical seat 1 to inner optical seat 3 and height does not change, two groups of first connecting plate 8 are fixedly welded on the upper portion of one side moving block 5, rotating shaft 9 is rotatably installed between two sides first connecting plate 8, two groups of second connecting plate 10 that are perpendicular to each other are fixedly welded on the outside of rotating shaft 9, two groups of mounting hoop 11 are fixedly welded on the outside of same group second connecting plate 10, respectively install convex mirror and concave mirror in two groups of mounting hoop 11, can ensure that convex mirror and concave mirror are switched at any time, add contrast effect;

[0022] The rotating shaft 9 is fixedly welded with a connecting seat 13 at both ends, a sliding rod 14 is slidingly installed in the connecting seat 13, a fixed sheet 16 is fixedly welded with the sliding rod 14 away from the first connecting plate 8, a first spring 17 is fixedly welded between the fixed sheet 16 and the connecting seat 13, the first spring 17 is sleeved outside the sliding rod 14, a boss 15 is fixedly welded at the other end of the sliding rod 14, two groups of grooves 18 matched with the boss 15 are formed in the inner side of the first limiting plate 2, when the rotating shaft 9 rotates, the boss 15 is separated from the groove 18, when the boss 15 is opposite to the other group of grooves 18, the first spring 17 pulls the fixed sheet 16, the sliding rod 14 drives the boss 15 into the groove 18, so that the rotating shaft 9 cannot rotate manually; the mounting hoop 11 is provided as an elastic structure, the lens is conveniently mounted in the mounting hoop 11, the second jack 12 is screw-installed in the inner side of the mounting hoop 11, and the second jack 12 is used for fixing the convex mirror; the connecting plate 6 is fixedly welded at the lower sides of the moving block 5, the first jack 7 is screw-installed in the connecting plate 6, and the position of the moving block 5 is fixed; the limiting groove 19 is formed in the lower sides of the outer optical seat 1, the bent sheet 20 is fixedly welded at the two sides of one end of the inner optical seat 3, the locking rod 22 is slidingly connected with the bent sheet 20 penetrating through the inner side of the upper side of the limiting groove 19, the locking hole 24 matched with the locking rod 22 is formed in the lower part of the outer optical seat 1, the bent sheet 20 and the locking hole 24 at different positions are connected through the locking rod 22, the folding and unfolding positions of the inner optical seat 3 are fixed; the pulling sheet 21 is fixedly welded at one end of the locking rod 22, the second spring 23 is fixedly welded between the pulling sheet 21 and the bent sheet 20, the second spring 23 is sleeved outside the locking rod 22, the second spring 23 pulls the pulling sheet 21, the locking rod 22 does not separate from the locking hole 24, the locking rod 22 is fixed with the bent sheet 20, and the locking rod 22 is prevented from falling off; the mounting seat 26 is fixedly welded at the upper part of one group of moving blocks 5, the lower part of the inner side of the mounting seat 26 rotates on the lower bevel gear 27, the upper part of the lower bevel gear 27 is meshedly connected with the upper bevel gear 28, the outer part of the upper bevel gear 28 is fixedly welded with the rotating cap 29 penetrating through the mounting seat 26, the upper part of the lower bevel gear 27 is fixedly welded with the threaded rod 30, the outer side of the threaded rod 30 is screw-connected with the lifting plate 31, the upper part of the lifting plate 31 is fixedly welded with the third connecting plate 32, the inner side of the mounting seat 26 is fixedly welded with the connecting rod 33 penetrating through the upper part of the third connecting plate 32, the other end of the connecting rod 33 is fixedly welded with the mounting cylinder 34, the candle is mounted in the mounting cylinder 34, the upper bevel gear 28 is driven to rotate through the rotating cap 29, the threaded rod 30 is driven to rotate through the lower bevel gear 27, the mounting cylinder 34 is driven to move up and down through the third connecting plate 32 and the connecting rod 33, and the light rays cannot pass through the lens when the candle burns down.

[0023] Working principle: the utility model discloses in use, through the inside light fixture base 3 along the outer light fixture base 1 movement, second spring 23 is through the pull piece 21, make locking lever 22 insert the locking hole 24 of different position, realize the equipment's storage and release, prevent the equipment too long and difficult to transport, the movable block 5 is by the first limit rail 2 and the second limit rail 4 outside movement, guarantee movable block 5 by the outer light fixture base 1 moves to the inside light fixture base 3 and does not jam and the height does not change, through the rotation of rotating shaft 9, two groups of mounting hoop 11 inside are installed convex mirror and concave mirror respectively, can guarantee convex mirror and concave mirror switch at any time, add contrast effect, boss 15 is separated from the groove 18, when boss 15 rotates to directly opposite another group of groove 18, first spring 17 is through the pull fixed piece 16, sliding rod 14 drives boss 15 to enter the groove 18, make rotating shaft 9 under the condition of unable manual rotation unable rotation, through the rotation of cap 29 drive upper bevel gear 28 rotation, through lower bevel gear 27 drive threaded rod 30 rotation, lifting plate 31 goes up and down and moves through third connecting plate 32 and connecting rod 33 drive mounting cylinder 34 go up and down, prevent candle burning reduces the light and cannot pass through the lens.

[0024] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that comprises a list of elements does not only include those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

[0025] Although the embodiments of the present utility model have been shown and described, it will be apparent to those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A physical experiment demonstration apparatus comprising an outer optical bench (1), characterized in that: The outer optical seat (1) is fixedly connected with two groups of first limiting rails (2), the inner optical seat (3) is slidably connected to the inner side of the outer optical seat (1), the inner optical seat (3) is fixedly connected with two groups of second limiting rails (4), the outer optical seat (1) is provided with a communication groove (25) in the upper portion, the second limiting rail (4) is slidably connected in the communication groove (25), the first limiting rail (2) and the second limiting rail (4) are slidably connected with a plurality of groups of moving blocks (5), the moving block (5) is fixedly connected with two groups of first connecting plates (8) on one side, the first connecting plate (8) is rotatably connected between the two sides, the rotating shaft (9) is fixedly connected with two groups of second connecting plates (10) perpendicular to each other, and the second connecting plate (10) is fixedly connected with two groups of mounting hoops (11) on the same side.

2. The physical experiment demonstration apparatus according to claim 1, wherein: The rotating shaft (9) is fixedly connected with a connecting seat (13) at both ends, the connecting seat (13) is slidably connected with a sliding rod (14), the sliding rod (14) is fixedly connected with a fixed sheet (16) away from the first connecting plate (8) on one side, the fixed sheet (16) and the connecting seat (13) are fixedly connected with a first spring (17), the first spring (17) is sleeved on the outer side of the sliding rod (14), the other end of the sliding rod (14) is fixedly connected with a boss (15), and the first limiting rail (2) is provided with two grooves (18) matched with the boss (15) in the inner side.

3. The physical demonstration apparatus of claim 1, wherein: The mounting hoop (11) is provided as an elastic structure, the mounting hoop (11) is threadedly connected with a second jack screw (12) in the inner side of the two sides, the moving block (5) is fixedly connected with a connecting plate (6) on the two sides of the lower portion, and the connecting plate (6) is threadedly connected with a first jack screw (7) in the inner side.

4. The physical demonstration apparatus of claim 1, wherein: The outer optical seat (1) is provided with a limiting groove (19) in the lower portion of the two sides, the inner optical seat (3) is fixedly connected with a bent sheet (20) on the two sides of one end, the bent sheet (20) is slidably connected with a locking rod (22) penetrating the inner side of the upper side of the limiting groove (19), and the outer optical seat (1) is provided with a locking hole (24) matched with the locking rod (22) in the lower portion.

5. The physical demonstration apparatus of claim 4, wherein: The locking rod (22) is fixedly connected with a pulling sheet (21) at one end, the pulling sheet (21) and the bent sheet (20) are fixedly connected with a second spring (23), and the second spring (23) is sleeved on the outer side of the locking rod (22).

6. The physical demonstration apparatus of claim 1, wherein: A group of said mobile block (5) upper fixedly connected with the mounting seat (26), the mounting seat (26) inside lower rotatingly connected with the lower bevel gear (27), the lower bevel gear (27) upper meshingly connected with the upper bevel gear (28), the upper bevel gear (28) outside penetrating the mounting seat (26) fixedly connected with the rotating cap (29), the lower bevel gear (27) upper fixedly connected with the threaded rod (30), the threaded rod (30) outside screwedly connected with the lifting plate (31), the lifting plate (31) upper both sides fixedly connected with the third connecting plate (32), the third connecting plate (32) upper penetrating the mounting seat (26) inside fixedly connected with the connecting rod (33), the connecting rod (33) other end fixedly connected with the mounting cylinder (34).

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