Optical physics demonstration experiment rack

Abstract

The utility model discloses an optical physics demonstration experiment rack, which relates to the demonstration experiment rack technology field, and comprises a base plate, a positioning groove is internally fixedly connected with a slide rod, one side of a moving rack is provided with an installation groove, the installation groove is internally slidably connected with a moving rod, the bottom of the moving rod is fixedly connected with a pressing plate, and the pressing plate is fixedly connected with a pressing plate. An adjusting plate is fixedly connected to the top of the moving rod, and a first spring is arranged at the bottom of the adjusting plate. When the position of the movable frame needs to be adjusted, the position of the movable frame in the positioning groove can be adjusted by pulling the adjusting plate upwards, use is convenient, and rapid adjustment is facilitated. When the adjusting plate is pulled upwards, the adjusting plate drives the moving rod and the pressing plate to move upwards, so that the pressing plate moves away from the surface of the sliding rod, the pressing plate is separated from the sliding rod, the position of the moving frame can be adjusted by pulling the moving frame, after the moving frame is adjusted to the needed position, the adjusting plate is loosened, and the pressing plate moves towards the sliding rod and is locked with the sliding rod under the action of the first spring. And the position of the movable frame is fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of demonstration experiment racks, in particular to an optical physics demonstration experiment rack. Background Art

[0002] The principles of concave-convex mirror imaging and pinhole imaging are important contents of the optical part of physics teaching. In order to make it easier for students to understand the principles of concave-convex mirror imaging and pinhole imaging, teachers often use teaching aids to explain relevant theoretical content during teaching. The current teaching aids for the principles of concave-convex mirror imaging and pinhole imaging only rely on simple hand-made experimental teaching aids. The equipment is too simple, and it cannot achieve a good teaching demonstration effect and cannot greatly improve classroom efficiency.

[0003] After searching the existing published patent number: CN201921606679.3, the published patent name is: A demonstration teaching aid for optical physics experiments, including a base plate, an adjustment slot is opened on the base plate, a plurality of sliding cylinders are clamped in the adjustment slot, a sliding rod is clamped in the sliding cylinder, a locking bolt is sleeved on the outer wall of the sliding cylinder, a pressure plate is installed at the bottom of the sliding cylinder, a locking bolt is installed on the pressure plate, a light source, a lens holder, a pinhole plate, a slit plate and a projection screen are installed on the top of the plurality of sliding rods in sequence, the light source candle and laser pen, the pinhole plate and the projection screen are fixedly clamped on the top of the sliding rods respectively. This device can raise the top part of the sliding rod to perform different experiments according to the experiment, the lens holder and the projection screen can be used for lens imaging experiments, the pinhole on the pinhole plate and the projection screen can be used for pinhole imaging experiments, and the slit diffraction experiment of light can be performed by using the steplessly adjustable slit plate and projection screen, thereby improving the experimental experience and the convenience of teacher operation.

[0004] However, the above-mentioned demonstration teaching aids are troublesome to adjust during use, and the locking bolts need to be adjusted multiple times to adjust the position of the sliding tube and the height of the sliding rod, which wastes class time and there is room for improvement. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the utility model provides an optical physics demonstration experiment stand, which solves the problem that the demonstration teaching aids are difficult to adjust during use, and require multiple adjustments of the locking bolts to adjust the position of the sliding tube and the height of the sliding rod, wasting classroom time.

[0007] Technical Solution

[0008] To achieve the above object, the present invention is implemented through the following technical solutions: an optical physics demonstration experiment stand, comprising: a bottom plate, a positioning groove formed on the bottom plate, four groups of movable frames slidably connected to the positioning groove, each of the four groups of movable frames slidably connected to a telescopic frame, the four groups of telescopic frames respectively provided with a light source, a lens assembly, a pinhole plate and a projection plate, and an adjustment assembly provided on the movable frame;

[0009] The adjustment assembly includes a sliding rod, a sliding rod is fixedly connected in the positioning groove, a mounting groove is opened on one side of the movable frame, a moving rod is slidably connected in the mounting groove, a pressure plate is fixedly connected to the bottom of the moving rod, an adjustment plate is fixedly connected to the top of the moving rod, and a first spring is provided at the bottom of the adjustment plate.

[0010] Preferably, the pressing plate is arranged in an arc shape, and a limiting hole with the same size as the sliding rod is opened on the movable frame.

[0011] Preferably, a telescopic fixing assembly is provided on the movable frame, and the telescopic fixing assembly includes a limit groove, the limit groove is opened on the upper surface of the movable frame, and a limit rod is symmetrically arranged in the limit groove. A limit plate is slidably connected to the limit rod, and a connecting rod is fixedly connected to one side of the limit plate, and a pull plate is fixedly connected to one end of the connecting rod, and a second spring is fixedly connected between the pull plate and the movable frame.

[0012] Preferably, the limiting plate and the limiting slot have the same length and width, one end of the second spring is fixedly connected to the surface of the moving frame, and the other end of the second spring is fixedly connected to the side of the pulling plate close to the moving frame.

[0013] Preferably, the lens assembly includes a fixed block, which is arranged at the top of the telescopic frame, one side of the fixed block is rotatably connected to a lens frame, different types of lenses are fixedly connected to the lens frame, a second magnet is arranged in a circular array on the side of the lens frame close to the fixed block, the top of the fixed block is fixedly connected to a mounting block, and the mounting block is fixedly connected to the first magnet on the side of the lens frame close to the lens frame.

[0014] Preferably, the upper surface of the bottom plate is provided with scale lines, and the scale lines are the same length as the positioning grooves.

[0015] Preferably, a receiving groove is provided on one side of the bottom plate, and an elastic isolation net with the same length as the receiving groove is provided on one side of the bottom plate.

[0016] Beneficial effects

[0017] The present invention provides an optical physics demonstration experiment stand, which has at least the following beneficial effects compared with the prior art:

[0018] When the position of the movable frame needs to be adjusted, the adjustment plate is pulled upward to adjust the position of the movable frame in the positioning slot, which is convenient to use and allows for quick adjustment. When the adjustment plate is pulled upward, the adjustment plate drives the movable rod and the pressure plate upward, thereby moving the pressure plate away from the surface of the slide bar, releasing the pressure plate from the lock with the slide bar. The position of the movable frame can be adjusted by pulling the movable frame. After adjusting to the desired position, the adjustment plate is released, and the pressure plate moves toward the slide bar under the action of the first spring, locking with the slide bar and fixing the position of the movable frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0021] Figure 3 This is a schematic structural diagram of the telescopic fixing assembly of the utility model;

[0022] Figure 4 This is a structural diagram of the lens assembly of the present invention.

[0023] In the figure: 1. bottom plate; 2. positioning groove; 3. movable frame; 4. telescopic frame; 5. light source; 6. lens assembly; 601. fixing block; 602. mounting block; 603. first magnet; 604. lens frame; 605. second magnet; 7. pinhole plate; 8. projection plate; 9. storage slot; 10. elastic isolation net; 11. scale line; 12. adjustment assembly; 1201. sliding rod; 1202. mounting groove; 1203. movable rod; 1204. pressing plate; 1205. first spring; 1206. adjustment plate; 1207. limiting hole; 13. telescopic fixing assembly; 1301. limiting groove; 1302. limiting rod; 1303. limiting plate; 1304. connecting rod; 1305. pull plate; 1306. second spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0025] Example 1:

[0026] See also Figure 1-4The utility model provides a technical solution: the mobile frame 3 is slidably connected to the telescopic frame 4, the four sets of telescopic frames 4 are respectively provided with a light source 5, a lens assembly 6, a pinhole plate 7 and a projection plate 8, and the mobile frame 3 is provided with an adjustment component 12;

[0027] The adjustment assembly 12 includes a slide bar 1201, which is fixedly connected to the positioning slot 2. A mounting slot 1202 is defined on one side of the movable frame 3, and a movable rod 1203 is slidably connected to the mounting slot 1202. A pressure plate 1204 is fixedly connected to the bottom of the movable rod 1203, and an adjustment plate 1206 is fixedly connected to the top of the movable rod 1203. A first spring 1205 is provided at the bottom of the adjustment plate 1206. A receiving slot 9 is defined on one side of the base plate 1, and an elastic isolation net 10 of the same length as the receiving slot 9 is provided on the side of the base plate 1.

[0028] Analysis of the above content: When the position of the movable rack 3 needs to be adjusted, the adjustment plate 1206 is pulled upward, and the adjustment plate 1206 drives the movable rod 1203 and the pressure plate 1204 to move upward, so that the pressure plate 1204 is moved away from the surface of the slide bar 1201, so that the pressure plate 1204 is disengaged from the lock with the slide bar 1201, and the position of the movable rack 3 can be adjusted by pulling the movable rack 3. After adjusting to the desired position, the adjustment plate 1206 is released, and the pressure plate 1204 moves toward the slide bar 1201 under the action of the first spring 1205, and is locked with the slide bar 1201 to fix the position of the movable rack 3. The position adjustment of the movable rack 3 can be completed with one hand, which is convenient and quick.

[0029] Example 2:

[0030] See also Figure 1-4 The present invention provides a technical solution based on the first embodiment: the pressing plate 1204 is arranged in an arc shape, and a limiting hole 1207 with the same size as the sliding rod 1201 is opened on the movable frame 3.

[0031] Analysis of the above content: Under the action of the first spring 1205, the pressing plate 1204 moves downward, and the sliding rod 1201 is pressed by the pressing plate 1204, thereby locking the position of the movable frame 3.

[0032] Example 3:

[0033] See also Figure 1-4The utility model provides a technical solution based on the first embodiment: a telescopic fixing component 13 is provided on the mobile frame 3, and the telescopic fixing component 13 includes a limit groove 1301, the limit groove 1301 is opened on the upper surface of the mobile frame 3, and a limit rod 1302 is symmetrically arranged in the limit groove 1301. The limit rod 1302 is slidably connected to the limit plate 1303, and one side of the limit plate 1303 is fixedly connected to a connecting rod 1304, and one end of the connecting rod 1304 is fixedly connected to a pull plate 1305, and a second spring 1306 is fixedly connected between the pull plate 1305 and the mobile frame 3.

[0034] Analysis of the above content: Under the action of the second spring 1306, the limit plate 1303 moves toward the telescopic frame 4, pressing and fixing the telescopic frame 4. When the height of the telescopic frame 4 needs to be adjusted, it is only necessary to move the telescopic frame 4 up and down. After adjusting to the required position, just let go. Under the action of the second spring 1306, the telescopic frame 4 is automatically locked, saving adjustment time.

[0035] Example 4:

[0036] See also Figure 1-4 The present invention provides a technical solution based on Example 1: the limiting plate 1303 has the same length and width as the limiting groove 1301, one end of the second spring 1306 is fixedly connected to the surface of the movable frame 3, and the other end of the second spring 1306 is fixedly connected to the side of the pull plate 1305 close to the movable frame 3.

[0037] Analysis of the above content: the second spring 1306 pulls the pull plate 1305 to move toward the movable frame 3, and the pull plate 1305 drives the connecting rod 1304 to move toward the movable frame 3, and then the limit plate 1303 clamps and fixes the telescopic frame 4.

[0038] Embodiment 5:

[0039] See also Figure 1-4 The present invention provides a technical solution based on the first embodiment: the lens assembly 6 includes a fixed block 601, which is arranged on the top of the telescopic frame 4, and a lens frame 604 is rotatably connected to one side of the fixed block 601. Different types of lenses are fixedly connected to the lens frame 604. A second magnet 605 is arranged in a circular array on the side of the lens frame 604 close to the fixed block 601. A mounting block 602 is fixedly connected to the top of the fixed block 601, and a first magnet 603 is fixedly connected to the side of the mounting block 602 close to the lens frame 604.

[0040] Analysis of the above content: If you need to use a lens of a different model, you only need to rotate the lens holder 604. Under the action of the first magnet 603, the second magnet 605 is magnetically attracted, thereby locking the position of the lens holder 604, making it easy to quickly replace lenses of different models.

[0041] Example 6:

[0042] See also Figure 1-4 The present invention provides a technical solution based on the first embodiment: a scale line 11 is provided on the upper surface of the bottom plate 1 , and the scale line 11 has the same length as the positioning groove 2 .

[0043] Analysis of the above content: The scale line 11 is set to facilitate observation of the position of the movable frame 3 and facilitate experiments.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood 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 present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical physics demonstration experiment stand, characterized in that: include: A bottom plate (1), wherein a positioning groove (2) is provided on the bottom plate (1), four groups of movable frames (3) are slidably connected to the positioning groove (2), and the four groups of movable frames (3) are all slidably connected to telescopic frames (4), and the four groups of telescopic frames (4) are respectively provided with a light source (5), a lens assembly (6), a pinhole plate (7) and a projection plate (8), and the movable frame (3) is provided with an adjustment assembly (12); The adjustment assembly (12) includes a sliding rod (1201), the sliding rod (1201) is fixedly connected in the positioning groove (2), a mounting groove (1202) is provided on one side of the movable frame (3), a movable rod (1203) is slidably connected in the mounting groove (1202), a pressing plate (1204) is fixedly connected to the bottom of the movable rod (1203), an adjustment plate (1206) is fixedly connected to the top of the movable rod (1203), and a first spring (1205) is provided at the bottom of the adjustment plate (1206).

2. The optical physics demonstration experiment stand according to claim 1, characterized in that: The pressing plate (1204) is arranged in an arc shape, and a limiting hole (1207) having the same size as the sliding rod (1201) is provided on the movable frame (3).

3. The optical physics demonstration experiment stand according to claim 1, characterized in that: The movable frame (3) is provided with a telescopic fixing assembly (13), the telescopic fixing assembly (13) comprising a limiting groove (1301), the limiting groove (1301) being provided on the upper surface of the movable frame (3), limiting rods (1302) being symmetrically arranged in the limiting groove (1301), a limiting plate (1303) being slidably connected to the limiting rods (1302), a connecting rod (1304) being fixedly connected to one side of the limiting plate (1303), a pulling plate (1305) being fixedly connected to one end of the connecting rod (1304), and a second spring (1306) being fixedly connected between the pulling plate (1305) and the movable frame (3).

4. The optical physics demonstration experiment stand according to claim 3, characterized in that: The limiting plate (1303) and the limiting groove (1301) have the same length and width, one end of the second spring (1306) is fixedly connected to the surface of the movable frame (3), and the other end of the second spring (1306) is fixedly connected to the side of the pulling plate (1305) close to the movable frame (3).

5. The optical physics demonstration experiment stand according to claim 1, characterized in that: The lens assembly (6) comprises a fixed block (601), the fixed block (601) being arranged on the top of the telescopic frame (4), one side of the fixed block (601) being rotatably connected to a lens frame (604), lenses of different models being fixedly connected to the lens frame (604), a second magnet (605) being arranged in a circumferential array on a side of the lens frame (604) close to the fixed block (601), a mounting block (602) being fixedly connected to the top of the fixed block (601), and a first magnet (603) being fixedly connected to a side of the mounting block (602) close to the lens frame (604).

6. The optical physics demonstration experiment stand according to claim 1, characterized in that: The upper surface of the bottom plate (1) is provided with a scale line (11), and the scale line (11) is the same length as the positioning groove (2).

7. The optical physics demonstration experiment stand according to claim 1, characterized in that: A receiving groove (9) is provided on one side of the bottom plate (1), and an elastic isolation net (10) having the same length as the receiving groove (9) is provided on one side of the bottom plate (1).

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