Adjustable multi-angle laser demonstration instrument for optical experiment

Abstract

The invention discloses an adjustable multi-angle laser demonstration instrument for optical experiments, which comprises a demonstration box and an optical demonstration component, and is characterized in that a demonstration groove is formed in the front surface of the demonstration box, a black demonstration board is fixedly connected in the demonstration groove, a plurality of limiting grooves are formed in the front surface of the black demonstration board, and limiting sliding blocks are slidably mounted in the limiting grooves; the front face of the limiting sliding block is provided with an insertion hole, the rear face of the optical demonstration component is fixedly connected with an insertion rod, the insertion rod is installed in the insertion hole in an inserted mode, a connection rotating shaft is rotatably installed in the demonstration groove, and the other end of the connection rotating shaft is fixedly connected with a fixing sleeve. The insertion rod can be fixed in the insertion hole through magnetic force, the optical demonstration component is fixed to the front face of the limiting sliding block, a certain pulling force is applied to the optical demonstration component, the insertion rod can be pulled out of the interior, the optical demonstration component can be pulled out for replacement according to experiment types, and the device can conduct different optical demonstration experiments.

Description

Technical Field

[0001] The invention relates to an optical demonstrator, in particular to an adjustable multi-angle laser demonstrator used for optical experiments. Background Art

[0002] A laser demonstrator is a teaching or demonstration device used in optical experiments. It is mainly used to demonstrate physical phenomena such as interference, diffraction, and polarization of light. It is commonly found in physics laboratories or popular science education scenarios.

[0003] For example, a white laser principle demonstrator with the Chinese patent publication number CN205388863U is a teaching experimental instrument. Polarizers are respectively set in the optical paths of the red laser and the green laser. The red and green lasers adjusted by the polarizers are combined into one laser beam through a dichroic mirror that transmits red and reflects green or transmits green and reflects red. The blue laser beam is combined into one laser beam through a dichroic mirror that transmits red and reflects blue. The beams are then focused by the objective lens and expanded by the collimating lens, and a white laser result is obtained on the gray plate. The demonstrator can change the intensity ratio of the red, green and blue lasers by rotating the polarizer, thereby obtaining white laser. The demonstrator is scientific and reasonable, with intuitive demonstration and simple structure. It can intuitively demonstrate the principle of white laser formation. At the same time, by rotating the polarizer, it can intuitively demonstrate the chromaticity experimental phenomenon that different red, green and blue ratios correspond to different colors, enriching the teaching content. The patent has the following problems: First, there are many kinds of optical experiments, including polarization experiments, double-slit interference experiments, lens imaging experiments, etc. The above device can only demonstrate and teach one type of optical experiment. Second, when conducting optical experiments such as refraction and reflection, it is necessary to freely adjust the angle of the laser to adjust the demonstration effect. However, the above device cannot arbitrarily adjust the emission angle of the laser. Summary of the Invention

[0004] The purpose of the present invention is to provide an adjustable multi-angle laser demonstrator for optical experiments to solve the existing problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an adjustable multi-angle laser demonstrator for optical experiments, comprising a demonstration box and an optical demonstration component, wherein a demonstration groove is provided on the front of the demonstration box, a black demonstration board is fixedly connected to the demonstration groove, a plurality of limiting grooves are provided on the front of the black demonstration board, a limiting slider is slidably installed in the limiting groove, a plug-in hole is provided on the front of the limiting slider, a plug-in rod is fixedly connected to the rear of the optical demonstration component, the plug-in rod is plugged into the plug-in hole, a connecting shaft is rotatably installed in the demonstration groove, a fixing sleeve is fixed to the other end of the connecting shaft, and a laser pen is plugged into the fixing sleeve.

[0006] Preferably, a transmission shaft is rotatably installed in the demonstration groove, and a worm is fixedly connected to the transmission shaft.

[0007] Preferably, a worm gear is fixedly connected to the connecting shaft, and the worm gear and the worm are meshed with each other.

[0008] Preferably, a sling is fixedly connected to the demonstration box.

[0009] Preferably, a nut is embedded and installed on the front side of the fixing sleeve, a fixing bolt is installed on the internal thread of the nut, and a non-slip rubber pad is fixed to the rear end of the fixing bolt.

[0010] Preferably, a threaded adjustment rod is rotatably installed in the limiting groove.

[0011] Preferably, the threaded adjustment rod and the upper end of the transmission shaft are both fixedly connected with a knob.

[0012] Preferably, a threaded sleeve is embedded in the limiting slider, and the threaded sleeve is threadably matched with the threaded adjusting rod.

[0013] Preferably, an adsorption magnet is fixedly connected to the plug rod.

[0014] Preferably, the limiting slider is made entirely of magnetic material, and the adsorption magnet cooperates with the limiting slider.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By using magnetic force, the plug-in rod can be fixed inside the plug-in hole, and the optical demonstration component can be fixed on the front of the limit slider. By applying a certain pulling force to the optical demonstration component, the plug-in rod can be pulled out from the inside. It is convenient to pull out the optical demonstration component for replacement according to the experiment type, so that the device can perform different optical demonstration experiments.

[0016] 2. The fixed sleeve can be driven to rotate by rotating the transmission shaft, and the fixed sleeve can drive the laser pen to rotate and adjust the laser angle emitted by the laser pen. It is convenient to adjust the laser emission angle by multi-angle rotation according to the actual demonstration situation.

[0017] 3. Rotating the threaded adjustment rod can drive the limit slider to move, and the movement of the limit slider can drive the movement of the optical demonstration component. Since the adsorption magnet is magnetically adsorbed on the front of the limit slider, a certain rotational force can be manually applied to the optical demonstration component to adjust the angle of the optical demonstration component, which is convenient for arranging a bent laser refraction experiment demonstration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a structural schematic diagram of another side of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the fixing sleeve and fixing bolt structure of the present invention; Figure 5 It is a schematic structural diagram of the limit slider and optical demonstration component of the present invention.

[0019] In the figure: 1. Demonstration box; 101. Demonstration slot; 102. Drive shaft; 103. Worm; 104. Sling; 2. Black demonstration board; 201. Limit groove; 202. Threaded adjustment rod; 3. Limit slider; 301. Threaded sleeve; 302. Plug-in hole; 4. Fixing sleeve; 401. Connecting shaft; 402. Worm gear; 403. Nut; 404. Fixing bolt; 405. Anti-slip rubber pad; 5. Laser pen; 6. Plug-in rod; 601. Adsorption magnet; 7. Knob; 9. Optical demonstration component. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 making creative efforts are within the scope of protection of the present invention.

[0021] like Figure 1-5 As shown, the present invention has the following specific embodiments.

[0022] Example 1 An adjustable multi-angle laser demonstrator for optical experiments includes a demonstration box 1 and an optical demonstration component 9. A demonstration groove 101 is provided on the front of the demonstration box 1, a black demonstration board 2 is fixedly connected to the demonstration groove 101, a plurality of limiting grooves 201 are provided on the front of the black demonstration board 2, a limiting slider 3 is slidably installed in the limiting groove 201, and a plug-in hole 302 is provided on the front of the limiting slider 3. A plug-in rod 6 is fixedly connected to the rear of the optical demonstration component 9, and the plug-in rod 6 is plugged into the plug-in hole 302. A connecting shaft 401 is rotatably installed in the demonstration groove 101, a fixing sleeve 4 is fixedly connected to the other end of the connecting shaft 401, and a laser pen 5 is plugged into the fixing sleeve 4.

[0023] In this embodiment, the optical demonstration component 9 is installed on the front of the limit slider 3 by inserting the plug rod 6 into the plug hole 302. The limit slider 3 is slidably installed in the limit groove 201. The limit slider 3 can slide up and down in the limit groove 201, thereby adjusting the position of the optical demonstration component 9. The optical demonstration component 9 is provided in various types, such as lenses, prisms, etc. According to the required experiment type, the appropriate optical demonstration component 9 is selected and adjusted to the appropriate position to arrange an optical experiment scene. The laser pen 5 is then fixed in the fixed sleeve 4. The fixed sleeve 4 is rotatably installed in the demonstration groove 101 by connecting the rotating shaft 401. The fixed sleeve 4 can be rotated at will, thereby driving the laser pen 5 to rotate and adjust the angle of the laser emitted by the laser pen 5. The plug rod 6 is inserted into the plug hole 302 and can be rotated at will to adjust the angle of the optical demonstration component 9, facilitating the arrangement of optical experiment scenes such as refraction. The front of the limit groove 201 is sprayed with black paint to make the laser emission path more conspicuous, facilitating personnel to observe the optical experiment.

[0024] Example 2 A transmission shaft 102 is rotatably installed in the demonstration groove 101, a worm 103 is fixed to the transmission shaft 102, a worm wheel 402 is fixed to the connecting shaft 401, the worm wheel 402 and the worm 103 are meshed with each other, a sling 104 is fixed to the demonstration box 1, a nut 403 is embedded in the front of the fixing sleeve 4, a fixing bolt 404 is installed on the inner thread of the nut 403, and a non-slip rubber pad 405 is fixed to the rear end of the fixing bolt 404.

[0025] In this embodiment, the transmission shaft 102 can drive the worm 103 to rotate, and the worm 103 is engaged with the worm wheel 402, so that the rotation of the worm 103 can drive the worm wheel 402 to rotate, and the rotation of the worm wheel 402 can drive the fixed sleeve 4 to rotate, and the rotation of the fixed sleeve 4 can drive the laser pen 5 to rotate, so as to adjust the laser emission angle of the laser pen 5. The fixing bolt 404 is threadedly installed in the nut 403. Rotating the fixing bolt 404 can drive the anti-slip rubber pad 405 to move, and the anti-slip rubber pad 405 is used to squeeze the surface of the laser pen 5, so as to fix the laser pen 5 inside the fixing sleeve 4.

[0026] Example 3 A threaded adjustment rod 202 is rotatably installed in the limiting groove 201. The threaded adjustment rod 202 and the upper end of the transmission shaft 102 are fixedly connected with a knob 7. A threaded sleeve 301 is embedded in the limiting slider 3. The threaded sleeve 301 is threadedly matched with the threaded adjustment rod 202. An adsorption magnet 601 is fixed on the connecting rod 6. The limiting slider 3 is made of magnetic material as a whole, and the adsorption magnet 601 cooperates with the limiting slider 3.

[0027] In this embodiment, the knob 7 can be used to drive the threaded adjustment rod 202 and the transmission shaft 102 to rotate, and the threaded adjustment rod 202 is threadedly matched with the threaded sleeve 301, so that the rotation of the threaded adjustment rod 202 can drive the limit slider 3 to move, adjust the height of the limit slider 3, and the adsorption magnet 601 can be adsorbed on the surface of the limit slider 3. The magnetic force can be used to fix the plug-in rod 6 inside the plug-in hole 302, and the optical demonstration component 9 can be fixed on the front of the limit slider 3. At the same time, there is a certain friction during the adsorption to limit the angle of the optical demonstration component 9.

[0028] The working principle and usage process of the present invention are as follows: when in use, according to the type of optical experiment to be demonstrated, a suitable optical demonstration component 9 is selected, and the plug-in rod 6 on the optical demonstration component 9 is inserted into the suitable plug-in hole 302 according to the required layout of the experiment. Then, the threaded adjustment rod 202 is rotated to drive the limit slider 3 to move, and the height of each optical demonstration component 9 is adjusted. The rotating transmission shaft 102 drives the fixed sleeve 4 to rotate. The rotation of the fixed sleeve 4 can drive the laser pen 5 to rotate, and adjust the angle of the laser emitted by the laser pen 5. Since the adsorption magnet 601 is magnetically adsorbed on the front of the limit slider 3, a certain rotational force can be manually applied to the optical demonstration component 9 to fine-tune the angle of the optical demonstration component 9, so as to facilitate the adjustment of the angle of each optical demonstration component 9 during refraction and laser emission angle.

[0029] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable multi-angle laser demonstrator for optical experiments, comprising a demonstration box (1) and an optical demonstration component (9), characterized in that: The demonstration box (1) is provided with a demonstration groove (101) on the front side, a black demonstration board (2) is fixedly connected in the demonstration groove (101), a plurality of limiting grooves (201) are provided on the front side of the black demonstration board (2), a limiting slider (3) is slidably installed in the limiting groove (201), a plug-in hole (302) is provided on the front side of the limiting slider (3), a plug-in rod (6) is fixedly connected to the rear side of the optical demonstration component (9), the plug-in rod (6) is plugged into the plug-in hole (302), a connecting shaft (401) is rotatably installed in the demonstration groove (101), a fixing sleeve (4) is fixedly connected to the other end of the connecting shaft (401), and a laser pen (5) is plugged into the fixing sleeve (4).

2. The adjustable multi-angle laser demonstrator for optical experiments according to claim 1, characterized in that: A transmission shaft (102) is rotatably mounted in the demonstration tank (101), and a worm (103) is fixedly connected to the transmission shaft (102).

3. The adjustable multi-angle laser demonstrator for optical experiments according to claim 2, characterized in that: A worm gear (402) is fixedly connected to the connecting shaft (401), and the worm gear (402) and the worm (103) are meshed with each other.

4. The adjustable multi-angle laser demonstrator for optical experiments according to claim 1, characterized in that: A sling (104) is fixedly connected to the demonstration box (1).

5. The adjustable multi-angle laser demonstrator for optical experiments according to claim 1, characterized in that: A nut (403) is embedded and installed on the front of the fixing sleeve (4), a fixing bolt (404) is installed on the internal thread of the nut (403), and a non-slip rubber pad (405) is fixed to the rear end of the fixing bolt (404).

6. The adjustable multi-angle laser demonstrator for optical experiments according to claim 1, characterized in that: A threaded adjustment rod (202) is rotatably mounted in the limiting groove (201).

7. The adjustable multi-angle laser demonstrator for optical experiments according to claim 6, characterized in that: The upper ends of the threaded adjustment rod (202) and the transmission shaft (102) are both fixedly connected with a knob (7).

8. The adjustable multi-angle laser demonstrator for optical experiments according to claim 1, characterized in that: A threaded sleeve (301) is embedded in the limiting slider (3), and the threaded sleeve (301) is threadably matched with the threaded adjustment rod (202).

9. The adjustable multi-angle laser demonstrator for optical experiments according to claim 1, characterized in that: An adsorption magnet (601) is fixedly connected to the plug rod (6).

10. The adjustable multi-angle laser demonstrator for optical experiments according to claim 9, characterized in that: The limiting slider (3) is entirely made of magnetic material, and the adsorption magnet (601) cooperates with the limiting slider (3).

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