Convex lens combined teaching aid

Abstract

The utility model discloses a convex lens combined teaching aid, which relates to the technical field of physics teaching demonstration appliances and comprises two bases, and two guide rods are fixedly mounted between the two bases. The light source assembly is arranged on the guide rod; the display assembly is arranged on the guide rod; the lens assembly is arranged between the light source assembly and the display assembly and comprises a first sliding block, an insertion rod, an adaptive cylinder and a rotating shaft. According to the convex lens combined teaching aid of the utility model, during the convex lens imaging process, teaching personnel adjust the positions of convex lens bodies with different specifications and thicknesses through rotation, further adjust the convex lens bodies needing to be experimented between the light source assembly and the display assembly, and fix the convex lens bodies; and therefore, the influence of convex lenses with different thicknesses on imaging can be conveniently explored, and the working efficiency of teaching personnel can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of physics teaching demonstration tools, in particular to a convex lens combination teaching aid. Background Art

[0002] Convex lenses are made based on the principle of light refraction. They are thicker in the center and thinner at the edges. They converge light, hence the name "convex lens." Thicker convex lenses have telescopic and converging properties, which are related to their thickness. The Convex Lens Imaging Laboratory is a key chapter in junior high school physics textbooks, making it crucial to help teachers effectively and efficiently demonstrate convex lens teaching to students.

[0003] A search revealed a Chinese patent application with publication number CN 209297590 U, which describes a convex lens assembly teaching aid for physics teaching. The device comprises a base, a horizontally mounted slide bar, and three slides slidably mounted on the slide bar. A convex lens is mounted on the middle slide bar, while a light source holder and a projection board are mounted on the two side slides, respectively. The slides comprise a sleeve slidably mounted on the slide bar, a threaded tube fixed to one end of the sleeve, and an end cap threadedly connected to the threaded tube. The threaded tube is inlaid with a ball bearing, and the inner surface of the end cap has a conical structure. This convex lens assembly teaching aid for physics teaching features a slide bar that facilitates adjusting the distance between the light source, convex lens, and projection board, facilitating demonstration of the projection relationship between the convex lens' focal length multiples. The device is highly maneuverable, and the light source holder can be mounted with multiple different light sources to facilitate demonstration of the focusing effect of scattered light on the convex lens. Furthermore, the light sources on the light source holder can be easily switched.

[0004] During the actual use of the above-mentioned device, since there are various thickness specifications of the convex lens, in order to study the influence characteristics of convex lenses of different thicknesses on optical imaging, during the experiment, teaching staff need to replace and install the convex lens in the above-mentioned device, which is a relatively cumbersome operation. Therefore, the above-mentioned device needs to be improved. Utility Model Content

[0005] The purpose of the present invention is to provide a convex lens combination teaching aid to solve the problems raised in the above background technology.

[0006] In order to solve the above problems, the technical solutions adopted by the present invention are as follows:

[0007] A convex lens combination teaching aid, comprising

[0008] A base, wherein two bases are provided, and two guide rods are fixedly installed between the two bases;

[0009] A light source assembly is provided on the guide rod;

[0010] A display assembly, wherein the display assembly is arranged on the guide rod;

[0011] The lens assembly is arranged between the light source assembly and the display assembly, and includes a first sliding block, an insertion rod, an adapter cylinder and a rotating shaft. The first sliding block is slidably installed on the outside of the guide rod. A socket is provided on the upper wall of the first sliding block. The insertion rod is inserted into the socket. The outer wall of the adapter cylinder is fixedly connected to the upper end of the insertion rod. One end of the rotating shaft is rotatably connected to the inner wall of the adapter cylinder cavity. Several convex lens bodies of different specifications and thicknesses are fixedly installed on the outer wall of the rotating shaft.

[0012] Preferably, a scale is fixedly installed between the two bases.

[0013] Preferably, the light source assembly includes a second sliding block and an F light source, the second sliding block is slidably installed on the outside of the guide rod, the upper wall of the second sliding block is provided with a socket, and the lower end of the F light source is plugged into and connected with the socket.

[0014] Preferably, the display assembly includes a third sliding block and an imaging light screen. The third sliding block is slidably mounted on the outside of the guide rod. A slot is provided on the upper wall of the third sliding block. The lower end of the imaging light screen is plugged into the slot.

[0015] Preferably, a constraint component for fixing the position of the insertion rod is provided on one side of the first sliding block, and the constraint component includes a first screw and a first handle. A first internal thread slot is provided on one side wall of the first sliding block, and the first internal thread slot is connected to the insertion hole. The first handle is fixedly set on one end of the first screw, and the other end of the first screw passes through the first internal thread slot and abuts against one side of the insertion rod.

[0016] Preferably, the outer wall of the adapter tube is provided with a second internal threaded slot, the second internal threaded slot is connected to the internal cavity of the adapter tube, a second screw is movably connected inside the second internal threaded slot, one end of the second screw is fixedly connected to a second handle, and the other end of the second screw passes through the second internal threaded slot and abuts against one side of the rotating shaft.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the convex lens imaging process of the present invention, the teaching staff adjusts the position of the convex lens bodies of different specifications and thicknesses by rotating, further adjusts the convex lens body that needs to be experimented to be placed between the light source component and the display component, and fixes it, thereby facilitating the exploration of the influence of convex lenses of different thicknesses on imaging, thereby improving the work efficiency of the teaching staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall external structure of a convex lens combination teaching aid;

[0020] Figure 2 This is a schematic diagram of the first-person perspective structure of a convex lens combination teaching aid;

[0021] Figure 3 A schematic diagram of the second perspective structure of a convex lens combination teaching aid;

[0022] Figure 4 The figure is a schematic diagram of the cross-sectional structure of a convex lens combination teaching aid.

[0023] In the figure: 1. base; 2. guide rod; 3. first sliding block; 4. insertion rod; 5. adapter cylinder; 6. rotating shaft; 7. scale; 8. second sliding block; 9. F light source; 10. third sliding block; 11. imaging light screen; 12. first screw; 13. first rotary handle; 14. second screw; 15. second rotary handle. 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-Figure 3 As shown, the utility model is a convex lens combination teaching aid, comprising

[0027] There are two bases 1, and two guide rods 2 are fixedly installed between the two bases 1;

[0028] The light source assembly is arranged on the guide rod 2;

[0029] Display assembly, the display assembly is arranged on the guide rod 2;

[0030] The lens assembly is arranged between the light source assembly and the display assembly, and includes a first sliding block 3, an insertion rod 4, an adapter tube 5 and a rotating shaft 6. The first sliding block 3 is slidably installed on the outside of the guide rod 2. A socket is provided on the upper wall of the first sliding block 3, and the insertion rod 4 is inserted into the socket. The outer wall of the adapter tube 5 is fixedly connected to the upper end of the insertion rod 4, and one end of the rotating shaft 6 is rotatably connected to the inner wall of the cavity of the adapter tube 5. Several convex lens bodies of different specifications and thicknesses are fixedly installed on the outer wall of the rotating shaft 6.

[0031] As can be seen from the above, a plurality of convex lens bodies of different specifications and thicknesses are fixedly mounted on the outside of the rotating shaft 6 in a circumferential array, and one end of the rotating shaft 6 is connected to the inner wall of the cavity of the adapter tube 5 for damped rotation;

[0032] When conducting convex lens imaging experiments, teaching staff do not need to replace the convex lens currently in use. They can further utilize the characteristic that one end of the rotating shaft 6 is rotatably connected to the inner wall of the cavity of the adapter tube 5, thereby facilitating the rotation of convex lenses of different thickness specifications to the top, and further aligning the light source component, display component and lens component in a straight line, thereby facilitating imaging and further observing the characteristics of the influence of convex lenses of different thicknesses on imaging.

[0033] Example 2:

[0034] There are two bases 1, and two guide rods 2 are fixedly installed between the two bases 1;

[0035] The light source assembly is arranged on the guide rod 2;

[0036] Display assembly, the display assembly is arranged on the guide rod 2;

[0037] The lens assembly is arranged between the light source assembly and the display assembly, and includes a first sliding block 3, an insertion rod 4, an adapter tube 5 and a rotating shaft 6. The first sliding block 3 is slidably installed on the outside of the guide rod 2. A socket is provided on the upper wall of the first sliding block 3, and the insertion rod 4 is inserted into the socket. The outer wall of the adapter tube 5 is fixedly connected to the upper end of the insertion rod 4, and one end of the rotating shaft 6 is rotatably connected to the inner wall of the cavity of the adapter tube 5. Several convex lens bodies of different specifications and thicknesses are fixedly installed on the outer wall of the rotating shaft 6.

[0038] Depend on Figures 1-4 It can be seen that a scale 7 is fixedly installed between the two bases 1 .

[0039] Specifically, the scale 7 is provided to facilitate personnel to accurately slide and adjust the positions of the light source assembly, the display assembly and the lens assembly.

[0040] The light source assembly includes a second sliding block 8 and an F light source 9. The second sliding block 8 is slidably mounted on the outside of the guide rod 2. A socket is provided on the upper wall of the second sliding block 8, and the lower end of the F light source 9 is plugged into the socket.

[0041] The display assembly includes a third sliding block 10 and an imaging light screen 11. The third sliding block 10 is slidably mounted on the outside of the guide rod 2. A slot is defined on the upper wall of the third sliding block 10. The lower end of the imaging light screen 11 is plugged into the slot.

[0042] A constraint component for fixing the position of the insertion rod 4 is provided on one side of the first sliding block 3, and the constraint component includes a first screw 12 and a first handle 13. A first internal thread slot is provided on one side wall of the first sliding block 3, and the first internal thread slot is connected to the insertion hole. The first handle 13 is fixedly set on one end of the first screw 12, and the other end of the first screw 12 passes through the first internal thread slot and abuts against one side of the insertion rod 4.

[0043] Specifically, when personnel need to adjust the height of the convex lens, they rotate the first handle 13 to loosen the first screw 12, release the constraint on the insertion rod 4, and further adjust the height of the insertion rod 4. After the height adjustment is completed, the first handle 13 is rotated in the opposite direction to drive the first screw 12 to rotate, further constraining and fixing the position of the insertion rod 4.

[0044] A second internal threaded slot is provided on the outer wall of the adapter tube 5, and the second internal threaded slot is connected to the internal cavity of the adapter tube 5. A second screw 14 is movably connected inside the second internal threaded slot, and one end of the second screw 14 is fixedly connected to the second handle 15, and the other end of the second screw 14 passes through the second internal threaded slot and abuts against one side of the rotating shaft 6.

[0045] Specifically, when personnel need to fix the position of the rotating shaft 6 , they can rotate the second handle 15 to drive the second screw 14 to rotate, and further constrain and fix the rotating shaft 6 by abutting one end of the second screw 14 against one side of the rotating shaft 6 .

[0046] From the above, it can be seen that during the convex lens imaging process, the teaching staff adjusts the position of the convex lens body of different specifications and thicknesses by rotating, further adjusts the convex lens body that needs to be experimented between the light source component and the display component, and fixes it, which makes it easier to explore the impact of convex lenses of different thicknesses on imaging and improves the work efficiency of the teaching staff.

[0047] All standard parts used in this utility model are commercially available, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as bolts, rivets, welding, etc. that are mature in the existing art. The machinery, parts and equipment all adopt conventional models in the existing art and will not be described in detail here. Any matters not described in detail in this specification belong to the existing art known to professional and technical personnel in this field.

[0048] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. "Multiple" means two or more, unless otherwise specifically defined.

[0049] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0050] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are mutually inconsistent.

[0052] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0053] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A convex lens combination teaching aid, characterized in that: include A base (1), wherein two bases (1) are provided, and two guide rods (2) are fixedly installed between the two bases (1); A light source assembly, the light source assembly being arranged on the guide rod (2); A display assembly, wherein the display assembly is arranged on the guide rod (2); A lens assembly is provided between a light source assembly and a display assembly, and comprises a first sliding block (3), an insertion rod (4), an adapter tube (5) and a rotating shaft (6); the first sliding block (3) is slidably mounted on the outside of a guide rod (2); a socket is provided on the upper wall of the first sliding block (3); the insertion rod (4) is inserted into the socket; the outer wall of the adapter tube (5) is fixedly connected to the upper end of the insertion rod (4); one end of the rotating shaft (6) is rotatably connected to the inner wall of a cavity of the adapter tube (5); and a plurality of convex lens bodies of different specifications and thicknesses are fixedly mounted on the outer wall of the rotating shaft (6).

2. A convex lens combination teaching aid according to claim 1, characterized in that: A scale (7) is also fixedly installed between the two bases (1).

3. A convex lens combination teaching aid according to claim 1, characterized in that: The light source assembly comprises a second sliding block (8) and an F light source (9). The second sliding block (8) is slidably mounted on the outside of the guide rod (2). A socket is provided on the upper wall of the second sliding block (8). The lower end of the F light source (9) is plugged into and connected to the socket.

4. A convex lens combination teaching aid according to claim 1, characterized in that: The display assembly comprises a third sliding block (10) and an imaging light screen (11). The third sliding block (10) is slidably mounted on the outside of the guide rod (2). A slot is provided on the upper wall of the third sliding block (10), and the lower end of the imaging light screen (11) is plugged into and connected to the slot.

5. The convex lens assembly teaching aid according to claim 1, characterized in that: A constraint assembly for fixing the position of the insertion rod (4) is provided on one side of the first sliding block (3), and the constraint assembly includes a first screw rod (12) and a first rotary handle (13). A first internal thread slot is provided on one side wall of the first sliding block (3), and the first internal thread slot is connected to the insertion hole. The first rotary handle (13) is fixedly arranged on one end of the first screw rod (12), and the other end of the first screw rod (12) passes through the first internal thread slot and abuts against one side of the insertion rod (4).

6. A convex lens combination teaching aid according to claim 1, characterized in that: The outer wall of the adapter cylinder (5) is provided with a second internal threaded slot, the second internal threaded slot is communicated with the internal cavity of the adapter cylinder (5), a second screw rod (14) is movably connected inside the second internal threaded slot, one end of the second screw rod (14) is fixedly connected to a second rotary handle (15), and the other end of the second screw rod (14) passes through the second internal threaded slot and abuts against one side of the rotating shaft (6).

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