Light refraction principle display device

Abstract

The utility model relates to the technical field of principle display equipment, and discloses a light refraction principle display device which comprises a base, the top of the base is fixedly connected with an outer frame, the surface of the outer frame is provided with a sliding groove, the sliding groove is connected with a connecting rod in a sliding mode, and one end of the connecting rod is fixedly connected with an inserting rod. According to the light refraction principle display device, through arrangement of a connecting rod, a pressing block and a clamping block, the device is simpler and more convenient to use, a rubber pad is pressed inwards, the pressing block is driven to move inwards to enable a spring to be stressed and shrunk, at the moment, the clamping block is pulled out of a clamping groove, the pressing block slides, the connecting rod slides in a sliding groove, and when the position of the connecting rod is proper, the rubber pad is loosened and pressed; the spring is not stressed to drive the pressing block to rebound and drive the clamping block to be inserted into the clamping groove, so that the positions of the connecting rod and the circular seat are fixed, the position of the infrared lamp is fixed at the moment, the possibility that arms are soreness and limp during manual display is avoided, and the direct light direction can be kept for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of principle display equipment, in particular to a light refraction principle display device. Background Art

[0002] Light refraction refers to the phenomenon that when light is incident obliquely from one medium to another, the propagation direction changes, causing the light to be deflected at the junction of different media. The angle between the refracted light and the normal is called the refraction angle. The law of light refraction is one of the basic laws of geometric optics and is a basic knowledge required in the field of physics. There are also many projections of light refraction phenomena in real life, such as bending chopsticks, mirages, and shallowing of pool water. When teachers explain the principle of light refraction, they will use light sources to conduct experiments while explaining, which is convenient for students to observe and understand. Therefore, a device is needed to facilitate the demonstration of the principle of light refraction.

[0003] However, the current traditional light refraction principle display device has the following disadvantages:

[0004] (1) Traditional display devices require teachers to hold the light source and aim it at the refraction plate for display. After long-term display, the teacher may feel sore in the arm and it is difficult to maintain the light state;

[0005] (2) When teachers hold the light source for demonstration, they need to keep changing positions to adjust the angle of the light to facilitate students’ observation and understanding, which is quite laborious.

[0006] Therefore, the utility model proposes a light refraction principle display device. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] The technical problem solved by the utility model is to provide a light refraction principle demonstration device which is highly practical, can be simply operated and has a relatively simple structure, thereby solving the problems in the above-mentioned background technology that it is difficult to maintain the light state for a long time in a handheld light source display and that it is time-consuming and laborious to change the position to adjust the direct light angle.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the utility model is implemented through the following technical solutions: a light refraction principle demonstration device, including a base, the top of the base is fixedly connected to an external frame, the surface of the external frame is provided with a slide groove, the slide groove and the sliding connection of the slide groove are connected with a connecting rod, one end of the connecting rod is fixedly connected to an insertion rod, the surface of the insertion rod is sleeved with a pressing block, one side of the surface of the pressing block is fixedly connected with a card block, the other side of the surface of the pressing block is fixedly connected with a rubber pad, the opposite side of the pressing block is fixedly connected with a damper, the surface of the damper is sleeved with a spring, the other end of the connecting rod is fixedly connected to a fixing block, the surface of the fixing block is fixedly connected with a circular seat, and the center of the circular seat is provided with a rotating hole.

[0011] Optionally, a rotating rod is rotatably connected inside the rotating hole, and a handle is fixedly connected to one end of the rotating rod. Rotating the handle can drive the rotating rod to rotate, and the rotation of the rotating rod drives the rotation of the control rod.

[0012] Optionally, a control rod is rotatably connected to the surface of the rotating rod, and an infrared lamp is fixedly connected to one end of the control rod. The rotation of the control rod drives the rotation of the infrared lamp to achieve the purpose of adjusting the direct angle of light.

[0013] Optionally, an arc groove is provided on the edge of the circular seat surface, and a limit block is slidably connected inside the arc groove. The top of the limit block is fixedly connected to the bottom of the control rod. When the control rod rotates, the limit block slides in the arc groove to limit the control rod.

[0014] Optionally, a card slot is provided on the inner wall of the slide slot, and the surface of the card block is inserted into the inside of the card slot. When the card block is inserted into the card slot, the position of the connecting rod is fixed, so that the light is kept in the same state and angle.

[0015] Optionally, a mounting groove is provided at the center of the surface of the outer frame, and a refractor is fixedly installed inside the mounting groove. When the light of the infrared lamp is directly irradiated on the surface of the refractor, the light is reflected by the refractor.

[0016] (III) Beneficial effects

[0017] The utility model provides a device for demonstrating the principle of light refraction, which has the following beneficial effects:

[0018] 1. The device for demonstrating the principle of light refraction makes the use of the device easier through the arrangement of the connecting rod, the pressing block and the card block. When the infrared lamp is started, the light of the infrared lamp is directly irradiated on the surface of the refractor, and the rubber pad is pressed inward, which drives the pressing block to move inward and causes the spring to contract under force. At this time, the card block is pulled out of the card slot, and the two fingers keep holding the rubber pad, and the pressing block is slid to make the connecting rod slide in the slide slot, so that the position of the direct light can be greatly adjusted. When the position of the connecting rod is appropriate, the rubber pad is released, and the spring drives the pressing block to rebound without force, and drives the card block to be inserted into the card slot, so that the positions of the connecting rod and the circular seat are fixed. At this time, the position of the infrared lamp is fixed, thereby avoiding the possibility of arm soreness during manual demonstration, so that the direction of the direct light can be maintained for a long time.

[0019] 2. The light refraction principle demonstration device can adjust the angle of direct light through the arrangement of a circular seat, a rotating rod and a control rod. The rotating handle can drive the rotating rod to rotate, and the rotating rod drives the control rod to rotate. The control rod drives the infrared lamp to rotate. At this time, the angle of the direct light of the infrared lamp can be slightly adjusted. When the control rod rotates, the limit block slides in the arc groove to limit the control rod, making the rotation of the infrared lamp more stable, so that the device does not need to change its position laboriously to adjust the light direction, thereby making the device more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall back structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the overall front structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the spring structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the control rod structure of the utility model.

[0024] In the figure: 1. base; 2. outer frame; 3. connecting rod; 4. plug rod; 5. pressing block; 6. clamping block; 7. rubber pad; 8. damper; 9. spring; 10. fixing block; 11. round seat; 12. rotating rod; 13. handle; 14. control lever; 15. infrared lamp; 16. limit block; 17. refractor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 4 The utility model provides a technical solution: a light refraction principle display device, including a base 1, the top of the base 1 is fixedly connected to an outer frame 2, the surface of the outer frame 2 is provided with a slide groove, the slide groove, the sliding connection of the slide groove is connected with a connecting rod 3, through the arrangement of the connecting rod 3, the pressing block 5 and the card block 6, the use of the device is easier, the infrared lamp 15 is started, the light of the infrared lamp 15 is directly irradiated on the surface of the refractor 17, the rubber pad 7 is pressed inwardly, the pressing block 5 is driven to move inwardly to make the spring 9 contract under force, and at this time the card block 6 is moved from the card The connecting rod 3 is pulled out of the groove, and the two fingers keep pinching the rubber pad 7, and the sliding pressing block 5 makes the connecting rod 3 slide in the sliding groove, which can greatly adjust the position of the direct light. When the position of the connecting rod 3 is appropriate, release the pressing rubber pad 7, and the spring 9 drives the pressing block 5 to rebound without force, and drives the card block 6 to insert into the card slot, so that the position of the connecting rod 3 and the circular seat 11 is fixed. At this time, the position of the infrared lamp 15 is fixed, thereby avoiding the possibility of arm weakness during manual display, so that the direction of the direct light can be maintained for a long time, and one end of the connecting rod 3 is fixed to the connecting rod 3. A plug rod 4 is connected, a pressing block 5 is sleeved on the surface of the plug rod 4, a clamping block 6 is fixedly connected to one side of the surface of the pressing block 5, a rubber pad 7 is fixedly connected to the other side of the surface of the pressing block 5, a damper 8 is fixedly connected to the opposite side of the pressing block 5, a spring 9 is sleeved on the surface of the damper 8, a fixing block 10 is fixedly connected to the other end of the connecting rod 3, a circular seat 11 is fixedly connected to the surface of the fixing block 10, and the circular seat 11, the rotating rod 12 and the control rod 14 are arranged so that the device can adjust the angle of direct light, and the handle 1 is turned to adjust the angle of direct light. 3 can drive the rotating rod 12 to rotate, and the rotation of the rotating rod 12 drives the rotation of the control rod 14, and the control rod 14 drives the infrared lamp 15 to rotate. At this time, the angle of the light directly emitted by the infrared lamp 15 can be slightly adjusted. When the control rod 14 rotates, the limit block 16 slides in the arc groove to limit the control rod 14, so that the rotation of the infrared lamp 15 is more stable, and thus the device does not need to change the position to adjust the light direction, so that the device is more practical. A rotating hole is opened in the center of the circular seat 11;

[0027] A rotating rod 12 is rotatably connected inside the rotating hole, and a handle 13 is fixedly connected to one end of the rotating rod 12. Rotating the handle 13 can drive the rotating rod 12 to rotate, and the rotation of the rotating rod 12 drives the rotation of the control rod 14.

[0028] The surface of the rotating rod 12 is rotatably connected with a control rod 14, and one end of the control rod 14 is fixedly connected with an infrared lamp 15. The rotation of the control rod 14 drives the rotation of the infrared lamp 15 to achieve the purpose of adjusting the direct angle of light.

[0029] An arc groove is formed on the edge of the surface of the circular seat 11, and a limit block 16 is slidably connected inside the arc groove. The top of the limit block 16 is fixedly connected to the bottom of the control rod 14. When the control rod 14 rotates, the limit block 16 slides in the arc groove to limit the control rod 14.

[0030] The inner wall of the slide slot is provided with a card slot, and the surface of the card block 6 is inserted into the inside of the card slot. When the card block 6 is inserted into the card slot, the position of the connecting rod 3 is fixed, so that the light is kept in the same state and angle;

[0031] A mounting groove is provided at the center of the surface of the outer frame 2 , and a refractor 17 is fixedly installed inside the mounting groove. When the light of the infrared lamp 15 is directly irradiated on the surface of the refractor 17 , the light is reflected by the refractor 17 .

[0032] In the utility model, the working steps of the device are as follows:

[0033] Step 1: First, start the infrared lamp 15. The light of the infrared lamp 15 is directly irradiated on the surface of the refractor 17, pressing the rubber pad 7 inward, driving the pressing block 5 to move inward to force the spring 9 to contract. At this time, the card block 6 is pulled out of the card slot. The two fingers keep pinching the rubber pad 7, slide the pressing block 5, and make the connecting rod 3 slide in the slide slot. The position of the direct light can be greatly adjusted;

[0034] Step 2: Then when the position of the connecting rod 3 is appropriate, release the pressing rubber pad 7, the spring 9 is not forced to drive the pressing block 5 to rebound, and drive the card block 6 to insert into the card slot, so that the position of the connecting rod 3 and the circular seat 11 is fixed, and the position of the infrared lamp 15 is fixed, thereby avoiding the possibility of arm weakness during manual display;

[0035] The third step: finally, rotating the handle 13 can drive the rotating rod 12 to rotate, and the rotation of the rotating rod 12 drives the rotation of the control rod 14, and the control rod 14 drives the infrared lamp 15 to rotate. At this time, the angle of the direct light of the infrared lamp 15 can be slightly adjusted. When the control rod 14 rotates, the limit block 16 slides in the arc groove to limit the control rod 14, so that the rotation of the infrared lamp 15 is more stable.

[0036] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0037] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0038] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for demonstrating the principle of light refraction, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to an outer frame (2), a sliding groove is provided on the surface of the outer frame (2), and a connecting rod (3) is slidably connected to the sliding groove. One end of the connecting rod (3) is fixedly connected to an insertion rod (4), and a pressing block (5) is sleeved on the surface of the insertion rod (4). One side of the surface of the pressing block (5) is fixedly connected to a clamping block (6), and the other side of the surface of the pressing block (5) is fixedly connected to a rubber pad (7). The opposite side of the pressing block (5) is fixedly connected to a damper (8), and a spring (9) is sleeved on the surface of the damper (8). The other end of the connecting rod (3) is fixedly connected to a fixing block (10), and the surface of the fixing block (10) is fixedly connected to a circular seat (11), and a rotating hole is provided at the center of the circular seat (11).

2. A light refraction principle demonstration device according to claim 1, characterized in that: A rotating rod (12) is rotatably connected inside the rotating hole, and one end of the rotating rod (12) is fixedly connected to a handle (13).

3. A light refraction principle demonstration device according to claim 2, characterized in that: The surface of the rotating rod (12) is rotatably connected to a control rod (14), and one end of the control rod (14) is fixedly connected to an infrared lamp (15).

4. The device for demonstrating the principle of light refraction according to claim 1, characterized in that: An arc-shaped groove is provided on the edge of the surface of the circular seat (11), and a limit block (16) is slidably connected inside the arc-shaped groove. The top of the limit block (16) is fixedly connected to the bottom of the control rod (14).

5. The device for demonstrating the principle of light refraction according to claim 1, characterized in that: The inner wall of the slide groove is provided with a clamping groove, and the surface of the clamping block (6) is inserted into the interior of the clamping groove.

6. The device for demonstrating the principle of light refraction according to claim 1, characterized in that: A mounting groove is provided at the center of the surface of the outer frame (2), and a refractor (17) is fixedly mounted inside the mounting groove.

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