Experimental equipment for photoelectric teaching

Abstract

The utility model relates to the technical field of photoelectric experiments, in particular to experimental equipment for photoelectric teaching, which comprises a base, a mercury lamp, a cassette, a shading tube, a light sheet and a position adjusting component, the base is connected with the mercury lamp and the cassette, the mercury lamp and the cassette are respectively positioned at the left end and the right end of the base, and the cassette is slidably connected onto the base. The two ends of the shading tube are detachably connected with the mercury lamp and the cassette respectively, the light sheet is connected with the fixing ring, the fixing ring is detachably connected to the shading tube, and the position adjusting assembly is connected to the shading tube. According to the utility model, the position adjusting assembly can drive the fixing ring and the light sheet to move in the horizontal direction through the rotation of the threaded rod, so that the light sheet can adjust the distance between the light sheet and the mercury lamp or the cassette, experiments can be better carried out when different light sheet tests are carried out, and the shading tube not only can shield stray light, but also can also shield the mercury lamp or the cassette. And the device can be decomposed into a plurality of parts, so that the blocking caused by adjusting or replacing the X-ray plate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to photoelectric experimental technical field, concretely relates to an experimental equipment for photoelectric teaching. BACKGROUND

[0002] Photoelectric effect experimental device is a kind of experimental equipment commonly used in physics laboratory of various science and engineering colleges, the experimental equipment is generally composed of photoelectric tube, mercury lamp, micro-current tester, color filter or neutral light reduction sheet, and the mercury lamp generally adopts high-voltage mercury lamp.

[0003] The Chinese patent with publication number CN214098875U discloses a photoelectric effect experimental instrument, which comprises a base, a high-voltage mercury lamp with a light shield arranged on the left side of the base, and a photoelectric tube with a light shield arranged on the right side of the base; a light outlet is arranged on the right side of the light shield of the high-voltage mercury lamp, and a light inlet is arranged on the left side of the light shield of the photoelectric tube; the light outlet and the light inlet are at the same height, and there is a distance between the light outlet and the light inlet; the photoelectric effect experimental instrument further comprises a light-tight light shield tube, one end of which is connected to the light inlet, and the other end is connected to the light outlet. The design of the light shield tube isolates stray light, reduces experimental errors, and makes experimental data more accurate. The telescopic light shield tube design can easily adjust the length to meet the needs of photoelectric effect experiments at different distances, and it is convenient to replace different frequency filters.

[0004] However, in the above technical solution, only the length of the light shield tube is adjusted by telescoping, thereby isolating external light interference to reduce experimental errors, but different filters need to be replaced in photoelectric effect experiments to obtain different data. Although the filter is installed in the light inlet, it is convenient to replace, but the distance between the filter and the dark box cannot be adjusted when replacing different filters. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art and provides an experimental equipment for photoelectric teaching.

[0006] The technical scheme of the utility model is as follows: an experimental equipment for photoelectric teaching, comprising a base, a mercury lamp and a dark box connected to the base, the mercury lamp and the dark box are respectively located at the left and right ends of the base, and the dark box is slidably connected to the base; a light shield tube is detachably connected to the mercury lamp and the dark box at both ends; a filter is connected to a fixing ring, and the fixing ring is detachably connected to the light shield tube; a position adjusting assembly is connected to the light shield tube; in the use state of the position adjusting assembly, the moving end of the position adjusting assembly drives the fixing ring and the filter to move along the central axis of the light shield tube to change the positions of the fixing ring and the filter relative to the mercury lamp and the dark box.

[0007] Preferably, the light shield tube is composed of an outer tube and an inner tube, the inner tube is slidably connected to the cavity of the outer tube, and the outer tube is detachably connected to the mercury lamp.

[0008] Preferably, the inner tube is composed of a fixed tube body and a moving tube body, the fixed tube body is provided with a notch, and the moving tube body is slidingly connected in the notch.

[0009] Preferably, the position adjusting assembly comprises

[0010] a threaded rod, one end of the threaded rod being rotatably connected in an adjusting groove formed in an inner wall of the inner tube, and the threaded rod being provided with a gear at the one end;

[0011] a moving block, the moving block being threadedly connected with the threaded rod, the moving block being provided with a moving ring, the moving ring being the same as the center of the light shielding tube, and the moving ring being detachably connected with the fixed ring;

[0012] an adjusting ring, the adjusting ring being rotatably connected on the inner tube, the adjusting ring being provided with a gear ring on an inner wall thereof, and the gear ring being in meshing transmission connection with the gear.

[0013] Preferably, a plurality of dovetail blocks are connected on the moving ring, and the dovetail blocks are slidingly connected with dovetail grooves formed in the fixed ring.

[0014] Preferably, a plurality of limiting strips are connected on the inner tube, and the limiting strips are slidingly connected with limiting grooves formed in the outer tube.

[0015] Preferably, two symmetrical moving seats are connected on the dark box, the moving seats are slidingly connected on guide rods, and the guide rods are connected in notches formed in the base.

[0016] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:

[0017] In the utility model, the position adjusting assembly can drive the fixed ring and the light sheet to move in the horizontal direction through the rotation of the threaded rod, so that the light sheet can adjust the distance between itself and the mercury lamp or the dark box, and better experiments can be performed when different light sheets are tested. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the utility model;

[0019] Figure 2 is a sectional view of the utility model; Figure 1

[0020] Figure 3 is a structure schematic view of the light shielding tube;

[0021] Figure 4 is an enlarged view of the structure at A of the utility model; Figure 3

[0022] Figure 5 Figure 3 ​​​An enlarged view of the structure at B of Fig.

[0023] Reference: 1, base; 2, mercury lamp; 3, dark box; 4, light shielding tube; 5, light sheet; 6, fixed ring; 7, outer tube; 8, inner tube; 9, fixed tube body; 10, moving tube body; 11, threaded rod; 12, gear; 13, moving block; 14, moving ring; 15, adjusting ring; 16, gear ring; 17, dovetail block; 18, dovetail groove; 19, limiting strip; 20, limiting groove; 21, moving seat; 22, guide rod. DETAILED DESCRIPTION

[0024] Example One

[0025] As Figures 1-5 shown, the utility model provides an experimental equipment for photoelectric teaching, including base 1, mercury lamp 2, dark box 3, light shielding tube 4, light sheet 5 and position adjusting assembly, base 1 connects mercury lamp 2 and dark box 3, and mercury lamp 2 and dark box 3 are respectively located at the left and right ends of base 1, and dark box 3 is slidably connected on base 1,

[0026] In an alternative embodiment, two symmetrical moving seats 21 are connected on dark box 3, moving seat 21 is slidably connected on guide rod 22, and guide rod 22 is connected in the notch of base 1,

[0027] Light shielding tube 4 is detachably connected with mercury lamp 2 and dark box 3 at both ends respectively; light shielding tube 4 can be sleeved on the convex part on mercury lamp 2 and dark box 3 to be connected with both;

[0028] In an alternative embodiment, light shielding tube 4 is composed of outer tube 7 and inner tube 8, inner tube 8 is slidably connected in the cavity of outer tube 7, and outer tube 7 is detachably connected on mercury lamp 2;

[0029] In an alternative embodiment, inner tube 8 is composed of fixed tube body 9 and moving tube body 10, notch is formed in fixed tube body 9, and moving tube body 10 is slidably connected in the notch;

[0030] In an alternative embodiment, a plurality of limiting strips 19 are connected on inner tube 8, and limiting strip 19 is slidably connected with limiting groove 20 formed on outer tube 7;

[0031] Light sheet 5 is connected with fixed ring 6, fixed ring 6 is detachably connected on light shielding tube 4, and position adjusting assembly is connected on light shielding tube 4; in the use state of position adjusting assembly, the moving end of position adjusting assembly drives fixed ring 6 and light sheet 5 to move along the central axis of light shielding tube 4 to change the position of fixed ring 6 and light sheet 5 with mercury lamp 2 and dark box 3.

[0032] Example Two

[0033] As Figures 2-5The utility model provides a kind of experimental equipment for photoelectric teaching, compared to embodiment one, the detailed structure of position adjusting assembly is recorded in this embodiment, position adjusting assembly includes threaded rod 11, gear 12, moving block 13, moving ring 14, adjusting ring 15 and gear ring 16, threaded rod 11 one end bearing rotation is connected in the adjusting groove being set in the inner wall of inner tube 8, threaded rod 11 one end is connected with gear 12, moving block 13 is connected with threaded rod 11, moving block 13 is connected with moving ring 14, moving ring 14 is same with the center of shading tube 4, moving ring 14 is detachably connected with fixed ring 6;

[0034] In an alternative embodiment, a plurality of dovetail blocks 17 are connected to the moving ring 14, and the dovetail blocks 17 are slidingly connected to the dovetail grooves 18 formed on the fixed ring 6.

[0035] The adjusting ring 15 is rotatably connected to the inner tube 8, and the gear ring 16 is connected to the inner wall of the adjusting ring 15. The gear ring 16 is in meshing transmission connection with the gear 12.

[0036] In summary, when the utility model is used, the staff opens the moving tube body 10 to expose the opening on the inner tube 8, rotates the adjusting ring 15 to drive the gear ring 16 to rotate, so as to drive the gear 12 and the threaded rod 11 to rotate. The moving block 13 connected to the threaded rod 11 drives the moving ring 14 to move linearly along the axis of the inner tube 8. The moving ring 14 drives the fixed ring 6 and the light sheet 5 to move through the cooperation of the dovetail grooves 18 and the dovetail blocks 17. When the moving ring 14 moves to one end of the inner tube 8, the fixed ring 6 can be removed to replace the light sheet 5. After replacement is completed, the moving tube body 10 is placed on the fixed tube body 9 to form the inner tube 8. The inner tube 8 is combined with the outer tube 7 through the limiting strip 19 on the inner tube 8 entering the limiting groove 20 in the outer tube 7. The distance between the inner tube 8 and the outer tube 7 is limited by the bolts on the outer tube 7. The outer tube 7 is sleeved on the protrusion on the mercury lamp 2. The end of the inner tube 8 close to the dark box 3 is sleeved on the protrusion on the dark box 3. The position of the dark box 3 can be adjusted by the sliding of the moving seat 21 on the guide rod 22. When it is necessary to adjust the distance between the light sheet 5 and the dark box 3, the adjusting ring 15 is rotated. The adjusting ring 15 drives the gear ring 16 to rotate, so as to drive the gear 12 and the threaded rod 11 to rotate. The moving block 13 connected to the threaded rod 11 drives the moving ring 14 to move linearly along the axis of the inner tube 8. The moving ring 14 drives the fixed ring 6 and the light sheet 5 to move through the cooperation of the dovetail grooves 18 and the dovetail blocks 17, so that the position of the light sheet 5 changes. If it is necessary to observe the exact position of the current light sheet 5, in addition to observing the number of rotation of the adjusting ring 15, the moving tube body 10 can be removed to observe the current position. After adjustment is completed, the experiment can be carried out by electrifying.

[0037] The embodiment of the utility model is described in detail above in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. An experimental device for optoelectronic teaching, characterized in that, include The base (1) is connected to a mercury lamp (2) and a dark box (3). The mercury lamp (2) and the dark box (3) are located at the left and right ends of the base (1) respectively, and the dark box (3) is slidably connected to the base (1). The light-shielding tube (4) is detachably connected at both ends to the mercury lamp (2) and the dark box (3); The light sheet (5) is connected to a fixing ring (6), which is detachably connected to the light-shielding tube (4); The position adjustment component is connected to the light-shielding tube (4). When the position adjustment component is in use, the moving end of the position adjustment component drives the fixing ring (6) and the light plate (5) to move along the central axis of the light-shielding tube (4) to change their position relative to the mercury lamp (2) and the dark box (3).

2. The experimental device for optoelectronic teaching according to claim 1, characterized in that, The light-shielding tube (4) consists of an outer tube (7) and an inner tube (8). The inner tube (8) is slidably connected in the cavity of the outer tube (7), and the outer tube (7) is detachably connected to the mercury lamp (2).

3. The experimental device for optoelectronic teaching according to claim 2, characterized in that, The inner tube (8) consists of a fixed tube body (9) and a movable tube body (10). The fixed tube body (9) has a notch, and the movable tube body (10) is slidably connected in the notch.

4. The experimental device for optoelectronic teaching according to claim 2, characterized in that, Position adjustment components include A threaded rod (11) is rotatably connected at one end to an adjustment groove opened on the inner wall of the inner tube (8), and a gear (12) is connected at one end of the threaded rod (11). The movable block (13) is threadedly connected to the threaded rod (11). A movable ring (14) is connected to the movable block (13). The movable ring (14) has the same center as the light-shielding tube (4). The movable ring (14) is detachably connected to the fixed ring (6). An adjusting ring (15) is rotatably connected to the inner tube (8). A gear ring (16) is connected to the inner wall of the adjusting ring (15), and the gear ring (16) meshes with the gear (12) for transmission.

5. An experimental device for optoelectronic teaching according to claim 4, characterized in that, The movable ring (14) is connected to multiple dovetail blocks (17), and the dovetail blocks (17) are slidably connected to the dovetail grooves (18) opened on the fixed ring (6).

6. An experimental device for optoelectronic teaching according to claim 2, characterized in that, Multiple limiting strips (19) are connected to the inner tube (8), and the limiting strips (19) are slidably connected to the limiting grooves (20) opened on the outer tube (7).

7. The experimental device for optoelectronic teaching according to claim 1, characterized in that, The dark box (3) is connected to two symmetrical movable seats (21), which are slidably connected to the guide rod (22). The guide rod (22) is connected to the notch opened on the base (1).

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