Parallel light source frame for physical experiment

Abstract

The invention provides a parallel light source frame for a physical experiment, and belongs to the technical field of experimental apparatuses. The parallel light source frame for the physical experiment comprises a main frame, the main frame comprises a vertical plate, an adjusting mechanism is arranged on one side of the vertical plate and comprises a first mounting plate, a second mounting plate, a double-disc limiting shaft and an inserting shaft, and a first double-shaft disc is arranged on a body of the first mounting plate through a bearing. By arranging the adjusting mechanism, the lens frame and the damping rotating shaft of the trepanning movable block are rotated to be in a loose state, at the moment, the lens frame is kept perpendicular under the action of the gravity of the lens frame, and translation position adjustment in the upper, lower, left and right directions can be conducted on a lens through a first double-shaft disc and a second double-shaft disc; the inclined limiting rod can set the opening movable block and the lens frame to be at different angles, the angle of the lens can be adjusted, one mechanism has two adjusting modes, and the physical experiment efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of experimental equipment, in particular to a parallel light source stand for physical experiments. Background Art

[0002] The physics experiment light source stand provides a stable, parallel light beam for the experiment, so as to study the propagation, reflection, refraction, interference, diffraction and other phenomena of light. The lens group usually includes one or more lenses, such as a convex lens. By reasonably adjusting the focal length and position of the lens, the divergent light emitted by the light source can be converged into parallel light. When studying the laws of reflection and refraction of light, the parallel light provided by the parallel light source stand can be used as incident light. For example, by irradiating parallel light on a plane mirror or a prism, observing the direction of the reflected light and the refracted light, the laws of reflection and refraction can be verified.

[0003] When adjusting the lens, it is generally necessary to adjust its angle and position. The existing adjustment mechanism can generally only achieve one of translation adjustment or angle adjustment, which is not conducive to using the same drive adjustment mechanism for integrated translation and angle adjustment. Summary of the invention

[0004] In order to make up for the above deficiencies, the present invention provides a parallel light source stand for physical experiments that overcomes the above technical problems or at least partially solves the above problems.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A parallel light source stand for physical experiments, comprising a main frame, wherein the main frame comprises a vertical plate, and an adjustment mechanism is provided on one side of the vertical plate, wherein the adjustment mechanism comprises:

[0007] A first mounting plate, wherein a first dual-axis disk is provided on the main body of the first mounting plate through a bearing, a first threaded shaft is fixedly connected to the side of the first dual-axis disk, a first slider is threadedly connected to the first threaded shaft, and a first straight slot plate is fixedly connected to the side of the first slider;

[0008] A second mounting plate, a body of the second mounting plate is provided with a second double-axis disk through a bearing, a side of the second double-axis disk is fixedly connected with a second threaded shaft, a second slider is threadedly connected to the second threaded shaft, and a side of the second slider is fixedly connected with a second straight slot plate;

[0009] A double-disk limiting shaft, the double-disk limiting shaft is located at the slotted portion of the first straight slot plate and the second straight slot plate, a hole-opening movable block is provided at the top of the double-disk limiting shaft through a movable shaft, and a lens frame is provided at the top of the hole-opening movable block;

[0010] The plug shaft is fixedly connected to the side of the vertical plate, the side of the plug shaft is movably connected with a perforated disk, the top of the perforated disk is provided with a limiting rod, and the end of the limiting rod is plugged with the perforated movable block.

[0011] By setting an adjustment mechanism, the damping shafts of the lens frame and the hole-opening movable block are rotated to a loose state. At this time, the lens frame remains vertical under the action of its own gravity. The lens can be adjusted in four directions of up, down, left and right through the first double-axis disk and the second double-axis disk respectively. The lens frame can be shifted by rotating the damping shaft to a tighter state. When the hole-opening movable block moves in the first straight slot plate and the second straight slot plate, the obliquely arranged limit rod can set the hole-opening movable block and the lens frame to different angles, thereby realizing the adjustment of the lens angle. One mechanism has two adjustment modes, which greatly improves the efficiency of physical experiments.

[0012] In one embodiment of the present invention, inner sleeve rods are provided at four corners of one side of the vertical plate, scale lines are provided on the rod body of the inner sleeve rods, and outer sleeves are provided at four corners of the other side of the vertical plate.

[0013] In one embodiment of the present invention, the first dual-axis disk and the second dual-axis plate are each composed of two disks connected at both ends of an axis.

[0014] In one embodiment of the present invention, the first straight groove plate and the second straight groove plate are vertically arranged, and the bottom of the first sliding block is slightly higher than the top of the second sliding block.

[0015] In one embodiment of the present invention, a limiting slider is provided on the top of the vertical plate, a slide rail is provided inside the limiting slider, and the double-disc limiting shaft is composed of two discs movably connected at both ends of a rotating shaft.

[0016] In one embodiment of the present invention, two of the first mounting plates and two of the second mounting plates are provided, and the first mounting plates and the second mounting plates are vertically arranged.

[0017] In one embodiment of the present invention, a damping shaft is provided on the top of the hole-opening movable block, and the top of the hole-opening movable block is connected to the lens frame via the damping shaft.

[0018] In one embodiment of the present invention, a wiping mechanism is provided on the top of the main frame, and the wiping mechanism includes a long straight plate, a clamping block is fixedly connected to the bottom of the long straight plate, and the clamping block is movably clamped on the top of the slide rail, and a driving turntable is provided at the top of one side of the long straight plate through a movable shaft, and a first installation box is provided on one side of the driving turntable, and a third threaded shaft is provided in the box body of the first installation box, and a third slider is provided on the shaft body of the third threaded shaft, and a first rotating block is provided at the front of the third slider through a movable shaft.

[0019] In one embodiment of the present invention, a second installation box is fixedly connected to the bottom of one side of the long straight board, a structural shaft is rotatably provided inside the second installation box, a fourth slider is sleeved on the structural shaft, a second rotating block is provided at the front of the fourth slider through a movable shaft, a first telescopic rod is fixedly provided at the side of the second rotating block, the top of the first telescopic rod is plugged into the first rotating block, a connecting block is provided at the bottom of the first telescopic rod, a second telescopic rod is provided at the side of the connecting block, and a wiping head is provided at the end of the second telescopic rod.

[0020] In one embodiment of the present invention, handles are provided on the movable shafts of the first dual-axis disk, the second dual-axis disk and the driving turntable.

[0021] The invention provides a parallel light source stand for physical experiments, which has the following beneficial effects:

[0022] 1. By setting an adjustment mechanism, the damping shafts of the lens frame and the hole-opening movable block are rotated to a loose state. At this time, the lens frame remains vertical under the action of its own gravity. The first double-axis disk and the second double-axis disk can be used to adjust the translation position of the lens in four directions: up, down, left and right. By rotating the damping shaft to a tighter state, the lens frame can be offset at an angle. When the hole-opening movable block moves in the first straight slot plate and the second straight slot plate, the obliquely arranged limit rod can set the hole-opening movable block and the lens frame to different angles, thereby realizing the adjustment of the lens angle. One mechanism has two adjustment modes, which greatly improves the efficiency of physical experiments.

[0023] 2. By setting the inner sleeve rod and combining it with the outer sleeve, it is convenient to adjust the distance between each adjustment mechanism. Combined with the adjustment mechanism, the lens frame can be adjusted in three dimensions when conducting physical optics experiments. The three-dimensional adjustment enables the lens frame to adapt to different experimental sites and equipment layouts. When the laboratory space is limited or multiple experiments need to be carried out at the same time, the position and angle of the lens can be flexibly adjusted according to the actual space size and the position of other experimental equipment.

[0024] 3. By setting up a wiping mechanism, the wiping head of the wiping mechanism is placed on the side of the lens, and the wiping head can revolve around the center of the lens to wipe the lens, and the wiping action is relatively gentle compared to manual wiping. By rotating the third threaded shaft, the relative position of the third slider and the center of the driving turntable can be adjusted. Rotating the turntable can make the first rotating block revolve around the center of the driving disk. At this time, one end of the outer rod body of the first telescopic rod swings around the other end, and the first telescopic rod and the first rotating block perform rotational motion, which is manifested in the connecting block as the wiping head performing circular motion, so that gentle wiping can be achieved. The relative position between the first rotating block and the center of the driving turntable can be set to different modes, and the orbital circular motion amplitude of the wiping head can be adjusted, so that multi-size wiping of the inner and outer circles of the lens can be achieved, and the same structure can achieve wiping of lenses of different areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 is a stereogram provided by an embodiment of the present invention;

[0027] Figure 2 A left perspective view of an embodiment of the present invention is provided;

[0028] Figure 3 A right perspective view of an embodiment of the present invention is provided;

[0029] Figure 4 A schematic diagram of the structure of the adjustment mechanism provided in an embodiment of the present invention;

[0030] Figure 5 A three-dimensional diagram of an adjustment mechanism provided in an embodiment of the present invention;

[0031] Figure 6 A schematic diagram of the structure of a wiping mechanism provided in an embodiment of the present invention;

[0032] Figure 7 A three-dimensional diagram of a wiping mechanism provided in an embodiment of the present invention;

[0033] Figure 8 This is a schematic diagram of the adjustment state of the wiping mechanism provided in an embodiment of the present invention.

[0034] In the figure: 1, main frame; 101, vertical plate; 102, inner sleeve rod; 103, outer sleeve; 104, slide rail; 105, limit slider; 2, adjustment mechanism; 201, first mounting plate; 202, first double-axis disk; 203, first threaded shaft; 204, first slider; 205, first straight slot plate; 206, second mounting plate; 207, second double-axis disk; 208, second threaded shaft; 209, second slider; 210, second straight slot plate; 211, double-disk limit shaft; 212, hole-opening movable block; 213, damping shaft ; 214, lens frame; 215, plug shaft; 216, perforated disk; 217, limit rod; 3, wiping mechanism; 301, long straight plate; 302, driving turntable; 303, first installation box; 304, third threaded shaft; 305, third slider; 306, first rotating block; 307, first telescopic rod; 308, second installation box; 309, structural axis; 310, fourth slider; 311, second rotating block; 312, connecting block; 313, second telescopic rod; 314, wiping head; 315, clamping block; 4, handle. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] Example

[0038] See also Figure 1-8The present invention provides a technical solution: a parallel light source frame for physical experiments, comprising a main frame 1, the main frame 1 comprising a vertical plate 101, one side of the vertical plate 101 is provided with an adjustment mechanism 2, the adjustment mechanism 2 comprises a first mounting plate 201, a second mounting plate 206, a double-disk limiting shaft 211 and an insertion shaft 215, a first double-axis disk 202 is provided on the body of the first mounting plate 201 through a bearing, a first threaded shaft 203 is fixedly connected to the side of the first double-axis disk 202, a first slider 204 is threadedly connected to the first threaded shaft 203, a first straight slot plate 205 is fixedly connected to the side of the first slider 204, a second double-axis disk 207 is provided on the body of the second mounting plate 206 through a bearing, a second double-axis disk 207 is fixedly connected to the side of the second threaded shaft 2 08, a second slider 209 is threadedly connected to the second threaded shaft 208, and a second straight slot plate 210 is fixedly connected to the side of the second slider 209, a double-disc limiting shaft 211 is located at the slotted portion of the first straight slot plate 205 and the second straight slot plate 210, a hole-perforated movable block 212 is provided at the top of the double-disc limiting shaft 211 through a movable shaft, a lens frame 214 is provided at the top of the hole-perforated movable block 212, an inserting shaft 215 is fixedly connected to the side of the vertical plate 101, and a hole-perforated disk 216 is movably connected to the side of the inserting shaft 215, and a limiting rod 217 is provided at the top of the hole-perforated disk 216, and the end of the limiting rod 217 is plugged into the hole-perforated movable block 212. When in use, multiple vertical plates 101 with adjustment mechanisms 2 are connected to each other through the outer sleeve 103 and the inner sleeve rod 102. By plugging, a lens assembly can be formed. The degree of mutual plugging between the outer sleeve 103 and the inner sleeve rod 102 is adjusted to adjust the distance between the lenses. The first double-axis disk 202 is rotated by the handle 4. Under the action of the first threaded rod, the first slider 204 slides horizontally. If the damping shaft 213 is loosened, the hole-opening movable block 212 with the lens frame 214 can move left and right. Similarly, the second double-axis disk 207 is rotated by the handle 4, and the second slider 209 moves up and down, thereby driving the hole-opening movable block 212 to move up and down. The combination of the two can set the lenses of the lens frame 214 to different positions up, down, left and right. The damping shaft 213 is rotated to a tight connection, and the lens frame 214 will not remain vertical under the action of its own gravity, and finally at the swing limit. Under the action of the rod 217, the hole-opening movable block 212 will deflect to different angles, which is regarded as the adjustment of the lens angle. By setting the adjustment mechanism 2, the lens frame 214 and the damping shaft 213 of the hole-opening movable block 212 are rotated to a loose state. At this time, the lens frame 214 remains vertical under the action of its own gravity. The first double-axis disk 202 and the second double-axis disk 207 can adjust the translation position of the lens in four directions of up, down, left and right. The damping shaft 213 is rotated to a tight state so that the lens frame 214 can be offset. When the hole-opening movable block 212 moves in the first straight slot plate 205 and the second straight slot plate 210, the obliquely arranged limit rod 217 can set the hole-opening movable block 212 and the lens frame 214 to different angles.The lens angle can be adjusted. One mechanism has two adjustment modes, which greatly improves the efficiency of physical experiments.

[0039] See also Figure 1-8 Inner rods 102 are provided at the four corners of one side of the vertical plate 101, and scale lines are opened on the rod body of the inner rod 102. Outer sleeves 103 are provided at the four corners of the other side of the vertical plate 101. By setting the inner rod 102 and combining with the outer sleeve 103, it is convenient to adjust the spacing between each adjustment mechanism 2. Combined with the adjustment mechanism 2, when conducting physical optics experiments, the lens frame 214 can be adjusted in three dimensions. The three-dimensional adjustment enables the lens frame 214 to adapt to different experimental sites and equipment layouts. When the laboratory space is limited or multiple experiments need to be carried out at the same time, the position and angle of the lens can be flexibly adjusted according to the actual space size and the position of other experimental equipment.

[0040] See also Figure 1-8 The first dual-axis disk 202 and the second dual-axis disk 207 are both composed of two disks connected at both ends of an axis.

[0041] See also Figure 1-8 The first straight slot plate 205 and the second straight slot plate 210 are vertically arranged, and the bottom of the first sliding block 204 is slightly higher than the top of the second sliding block 209 .

[0042] See also Figure 1-8 A limiting slider 105 is provided on the top of the vertical plate 101, and a slide rail 104 is provided inside the limiting slider 105. The double-disc limiting shaft 211 is composed of two discs movably connected at both ends of a rotating shaft.

[0043] See also Figure 1-8 , the first mounting plate 201 and the second mounting plate 206 are each provided with two, the first mounting plate 201 and the second mounting plate 206 are vertically arranged, and the mutual insertion degree between the outer sleeve 103 and the inner sleeve rod 102 is adjusted to be regarded as adjusting the distance between the lenses, and the first double-axis disk 202 is rotated by the handle 4, and under the action of the first threaded rod, the first slider 204 slides horizontally, and if the damping shaft 213 is loosened, the hole-opening movable block 212 with the lens frame 214 can move left and right. Similarly, the second double-axis disk 207 is rotated by the handle 4, and the second slider 209 moves up and down, thereby driving the hole-opening movable block 212 to move up and down. The combination of the two can set the lenses of the lens frame 214 to different positions up, down, left and right. The damping shaft 213 is rotated to a tight connection, and the lens frame 214 will not remain vertical under the action of its own gravity. Finally, under the action of the swinging limit rod 217, the hole-opening movable block 212 will deflect to different angles.

[0044] See also Figure 1-8A damping shaft 213 is provided at the top of the hole-opening movable block 212 , and the top of the hole-opening movable block 212 is connected to the lens frame 214 through the damping shaft 213 .

[0045] See also Figure 1-8 A wiping mechanism 3 is provided on the top of the main frame 1, and the wiping mechanism 3 includes a long straight plate 301, and a clamping block 315 is fixedly connected to the bottom of the long straight plate 301, and the clamping block 315 is movably clamped on the top of the slide rail 104. A driving turntable 302 is provided on the top of one side of the long straight plate 301 through a movable axis, and a first installation box 303 is provided on one side of the driving turntable 302. A third threaded shaft 304 is provided in the box body of the first installation box 303, and a third slider 305 is provided on the shaft body of the third threaded shaft 304. The front part of the third slider 305 is provided with a first rotating block 306 through a movable axis.

[0046] See also Figure 1-8A second installation box 308 is fixedly connected to the bottom of one side of the long straight plate 301, a structural shaft 309 is rotatably arranged inside the second installation box 308, a fourth slider 310 is sleeved on the structural shaft 309, a second rotating block 311 is arranged at the front of the fourth slider 310 through a movable shaft, a first telescopic rod 307 is fixedly arranged at the side of the second rotating block 311, a top end of the first telescopic rod 307 is plugged into the first rotating block 306, a connecting block 312 is arranged at the bottom of the first telescopic rod 307, and a second The telescopic rod 313, the end of the second telescopic rod 313 is provided with a wiping head 314, and the handle 4 is manually rotated to rotate the driving turntable 302. If the first rotating block 306 is located at the center of the driving turntable 302, the first telescopic rod 307 will not deflect. When the first rotating block 306 is set to different angles from the center of the driving turntable 302 by rotating the third threaded shaft 304, the top of the first telescopic rod 307 will perform different amplitudes of revolution around the center of the driving turntable 302, which is manifested in the first telescopic rod 30 7 and the connecting block 312 are where it performs different amplitudes of revolution around the center of the lens. A wiping mechanism 3 is provided. The wiping head 314 of the wiping mechanism 3 is placed on the side of the lens. The wiping head 314 can revolve around the center of the lens to wipe the lens. The wiping action is relatively gentle compared to manual wiping. The relative position of the third slider 305 and the center of the driving turntable 302 can be adjusted by rotating the third threaded shaft 304. The rotating turntable can make the first rotating block 306 revolve around the center of the driving disk. One end of the outer rod body of the first telescopic rod 307 swings around the other end, and the first telescopic rod 307 and the first rotating block 306 rotate, which is reflected in the connection block 312 as the wiping head 314 making a circular motion, so that gentle wiping can be achieved. By setting the relative position between the first rotating block 306 and the center of the driving turntable 302 to different modes, the orbital circular motion amplitude of the wiping head 314 can be adjusted, so that multi-size wiping of the inner and outer circles of the lens can be achieved, and the same structure can be used to wipe lenses of different areas.

[0047] See also Figure 1-8 A handle 4 is provided on the movable shafts of the first dual-axis disk 202 , the second dual-axis disk 207 and the driving turntable 302 .

[0048] Specifically, the working process or working principle of the parallel light source stand for physical experiments is as follows: when in use, multiple vertical plates 101 with adjustment mechanisms 2 are plugged into each other through the outer sleeve 103 and the inner sleeve rod 102 to form a lens combination. Adjusting the degree of mutual plugging between the outer sleeve 103 and the inner sleeve rod 102 is regarded as adjusting the distance between the lenses. The first dual-axis disk 202 is rotated by the handle 4. Under the action of the first threaded rod, the first slider 204 slides horizontally. If the damping shaft 213 is relaxed, the open hole movable block 212 with the lens frame 214 can move left and right. Similarly, the second dual-axis disk 207 is rotated by the handle 4, and the second slider 209 moves up and down, thereby driving the open hole movable block 212 to move up and down. The combination of the two can set the lens of the lens frame 214. By rotating the damping shaft 213 to a tight connection at different positions up, down, left and right, the lens frame 214 will not remain vertical under the action of its own gravity, and finally, under the action of the swinging limit rod 217, the hole-opening movable block 212 will deflect to different angles, which is regarded as the adjustment of the lens angle. Manually rotate the handle 4 to rotate the driving turntable 302. If the first rotating block 306 is located at the center of the driving turntable 302, the first telescopic rod 307 will not deflect. When the first rotating block 306 is set to different angles from the center of the driving turntable 302 by rotating the third threaded shaft 304, the top of the first telescopic rod 307 will make different amplitudes of revolution around the center of the driving turntable 302, which is manifested in the first telescopic rod 307 and the connecting block 312 as the different amplitudes of revolution around the center of the lens.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A parallel light source stand for physical experiments, comprising a main frame (1), characterized in that: The main frame (1) comprises a vertical plate (101), one side of the vertical plate (101) is provided with an adjustment mechanism (2), and the adjustment mechanism (2) comprises: A first mounting plate (201), a first dual-axis disk (202) is provided on the body of the first mounting plate (201) via a bearing, a first threaded shaft (203) is fixedly connected to the side of the first dual-axis disk (202), a first slider (204) is threadedly connected to the first threaded shaft (203), and a first straight slot plate (205) is fixedly connected to the side of the first slider (204); A second mounting plate (206), a second dual-axis disk (207) is provided on the body of the second mounting plate (206) via a bearing, a second threaded shaft (208) is fixedly connected to the side of the second dual-axis disk (207), a second slider (209) is threadedly connected to the second threaded shaft (208), and a second straight groove plate (210) is fixedly connected to the side of the second slider (209); A double-disk limiting shaft (211), the double-disk limiting shaft (211) is located at the slotted portion of the first straight slot plate (205) and the second straight slot plate (210), a hole-opening movable block (212) is provided at the top of the double-disk limiting shaft (211) via a movable shaft, and a lens frame (214) is provided at the top of the hole-opening movable block (212); An inserting shaft (215) is fixedly connected to the side of the vertical plate (101), and a perforated disk (216) is movably connected to the side of the inserting shaft (215). A limiting rod (217) is provided on the top of the perforated disk (216), and an end of the limiting rod (217) is plugged into the perforated movable block (212).

2. A parallel light source stand for physical experiments according to claim 1, characterized in that: An inner sleeve rod (102) is provided at the four corners of one side of the vertical plate (101), and a scale mark is provided on the rod body of the inner sleeve rod (102). An outer sleeve (103) is provided at the four corners of the other side of the vertical plate (101).

3. A parallel light source stand for physical experiments according to claim 2, characterized in that: The first double-axis disk (202) and the second double-axis disk (207) are both composed of two disks connected at both ends of an axis.

4. A parallel light source stand for physical experiments according to claim 3, characterized in that: The first straight groove plate (205) and the second straight groove plate (210) are arranged vertically, and the bottom of the first sliding block (204) is slightly higher than the top of the second sliding block (209).

5. A parallel light source stand for physical experiments according to claim 4, characterized in that: A limiting slider (105) is provided on the top of the vertical plate (101), a slide rail (104) is provided inside the limiting slider (105), and the double-disc limiting shaft (211) is composed of two discs movably connected at both ends of a rotating shaft.

6. A parallel light source stand for physical experiments according to claim 5, characterized in that: Two of the first mounting plate (201) and the second mounting plate (206) are provided, and the first mounting plate (201) and the second mounting plate (206) are arranged vertically.

7. A parallel light source stand for physical experiments according to claim 6, characterized in that: A damping shaft (213) is provided on the top of the hole-opening movable block (212), and the top of the hole-opening movable block (212) is connected to the lens frame (214) via the damping shaft (213).

8. A parallel light source stand for physical experiments according to claim 7, characterized in that: A wiping mechanism (3) is provided at the top of the main frame (1), and the wiping mechanism (3) comprises a long straight plate (301), a clamping block (315) is fixedly connected to the bottom of the long straight plate (301), and the clamping block (315) is movably clamped to the top of the slide rail (104), a driving turntable (302) is provided at the top of one side of the long straight plate (301) via a movable shaft, a first installation box (303) is provided at one side of the driving turntable (302), a third threaded shaft (304) is provided in the box body of the first installation box (303), a third slider (305) is provided on the shaft body of the third threaded shaft (304), and a first rotating block (306) is provided at the front of the third slider (305) via a movable shaft.

9. A parallel light source stand for physical experiments according to claim 8, characterized in that: A second installation box (308) is fixedly connected to the bottom of one side of the long straight plate (301), a structural shaft (309) is rotatably provided inside the second installation box (308), a fourth slider (310) is sleeved on the structural shaft (309), a second rotating block (311) is provided at the front of the fourth slider (310) via a movable shaft, a first telescopic rod (307) is fixedly provided at the side of the second rotating block (311), the top of the first telescopic rod (307) is plugged into the first rotating block (306), a connecting block (312) is provided at the bottom of the first telescopic rod (307), a second telescopic rod (313) is provided at the side of the connecting block (312), and a wiping head (314) is provided at the end of the second telescopic rod (313).

10. A parallel light source stand for physical experiments according to claim 9, characterized in that: Handles (4) are provided on the movable shafts of the first double-axis disk (202), the second double-axis disk (207) and the driving rotating disk (302).

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