Physical optical experiment demonstration device

Abstract

The invention discloses a physical optical experiment demonstration device, relates to the technical field of physical experiments, and solves the technical problems that when a teaching aid is transferred, the teaching aid is not protected, the teaching aid is easily collided and damaged, and the teaching aid is inconvenient to fix after the distance of the teaching aid is adjusted. The left and right sides of the front end and the rear end of the outer wall of the box body are slidably connected with handles respectively, the top end of the box body is provided with a sealing cover mechanism, and the box body is internally provided with a demonstration mechanism. When physical optical experiment demonstration is carried out, teaching aids are carried to a place needing demonstration together through the box body, the cover plate can be supported to the side face of the box body to facilitate experiment demonstration, other teaching aids can be placed, and through work of the lifting mechanism, a plurality of supporting components can be lifted out of the box body together, so that the teaching aids are convenient to use. The demonstration of the optical experiment is facilitated, and the early-stage preparation work of the optical experiment demonstration is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of physical experiments, and in particular to a physical optics experiment demonstration device. Background Art

[0002] In the teaching of physics, simply explaining the knowledge of physical principles to students through books is relatively abstract, making it difficult for most students to understand, resulting in a decrease in learning interest. Common experiments include pinhole imaging, imaging characteristics of convex and concave lenses, and slit diffraction of light. In order to facilitate teaching, demonstration aids are often used for demonstration;

[0003] After searching, a portable optical demonstration device for physical experiments is disclosed in a Chinese patent, the publication number of which is CN107123351B. By pinning the first support, the second support and the third support with the slider, the first support, the second support and the third support can be rotated after the experiment is over, so that the candle, the convex lens and the imaging plate are stored in the slide groove of the base, so as to achieve the purpose of accommodating the candle, the convex lens and the imaging plate, and then the plug plate is inserted, and the surface of the first support, the second support and the third support can be limited by the plug plate, so that it is convenient to carry;

[0004] However, the above device still has some shortcomings when in use. When the teaching aids are transferred, there is a lack of protection for the teaching aids, which can easily cause the teaching aids to be damaged by bumps. At the same time, after adjusting the distance between the various experimental tools, it is not convenient to fix the adjusted experimental tools. Summary of the invention

[0005] The purpose of the present invention is to provide a physical optics experiment demonstration device to solve the following technical problems:

[0006] When the teaching aids are transferred, the lack of protection for the teaching aids may easily lead to damage to the teaching aids. Meanwhile, after adjusting the distance between the various experimental tools, it is not convenient to fix the adjusted experimental tools.

[0007] The object of the present invention can be achieved by the following technical scheme: A physical optics experiment demonstration device comprises a box, wherein the bottom four corners of the box are fixedly connected with feet, the left and right sides of the front and rear ends of the outer wall of the box are slidably connected with handles, and the top of the box is provided with a cover mechanism;

[0008] The covering mechanism comprises a fixed pulley, the outer wall of the fixed pulley is sleeved with a steel cable, an upper fixed block is fixedly connected to the center of the top end of the outer wall of the steel cable, and a lower fixed block is fixedly connected to the center of the bottom end of the outer wall of the steel cable, the inner sides of the upper and lower fixed blocks are fixedly connected to cover plates, a clamping component is provided at the center of the lower surface of the cover plate, a cross bar is provided on the outer side of the bottom end of the cover plate, and a protrusion is fixedly connected to the top end of the cross bar, the outer side of the fixed pulley is rotatably connected to the four corners of the inner top end of the box body, the outer side of the cross bar is fixedly connected to the outer side of the inner top end of the box body, the two cover plates are buckled on the top end of the box body, and the cover plates are slidably connected to the outer walls of the protrusions.

[0009] As a further solution of the present invention, the outer sides of the upper surfaces of the two cover plates are provided with buckles, and the inner sides of the two cover plates are processed with magnetic strips, the inner sides of the protrusions are also processed with magnetic strips, and the inner walls of the two cover plates are close to the upper fixed block and the lower fixed block. One side is processed with iron sheets of the same specifications as the magnetic strips arranged on the inner side of the protrusions.

[0010] As a further solution of the present invention, the clamping component includes a support plate, a spring rod is fixedly connected to the side of the support plate, a buckle is fixedly connected to the top end of the outer wall of the spring rod, the support plate is rotatably connected to the inner center of the lower surface of the cover plate through a pin shaft, and a torsion spring is processed at the connection between the support plate and the pin shaft, the spring rod is composed of an insert tube, a sleeve and a connecting spring, the side of the insert tube is fixedly connected to the bottom end of the side of the support plate, and the insert tube is slidably connected to the inside of the side of the sleeve, the two sides of the connecting spring are respectively fixedly connected to the inner side of the insert tube and the inner side of the sleeve, the bottom end of the buckle is fixedly connected to the top end of the outer wall of the sleeve, and the inner side of the buckle is processed into a semi-arc shape that fits the outer wall of the handle.

[0011] As a further solution of the present invention, a demonstration mechanism is arranged inside the box, and the demonstration mechanism includes a lifting component, and a plurality of supporting components are arranged on the inner side of the top end of the lifting component, and the top ends of the plurality of supporting components are respectively provided with clamping components, shading plates and imaging plates, and the lifting component is arranged at the inner bottom end of the box.

[0012] As a further solution of the present invention, the lifting component includes a support seat, a screw rod is rotatably connected inside the support seat, a rotating block is fixedly connected to the side of the screw rod, a small gear is fixedly connected to the other side of the screw rod, a large gear is meshedly connected to the side of the outer wall of the small gear, a hand wheel is fixedly connected to the side of the large gear, a smooth rod is provided at the front and rear ends of the outer side of the screw rod, cross plates are respectively threadedly connected to the two sides of the outer wall of the screw rod, a plurality of struts are rotatably connected to the top of the two cross plates, a plurality of struts are rotatably connected to the top of the plurality of struts, a slide plate is rotatably connected to the top of the slide plate, and the slide plate The top end of the plate is slidably connected to a slide rail, the top end of the slide rail is fixedly connected to a support plate, the lower surface of the support plate is fixedly connected to a rack, the bottom end of the support seat is fixedly connected to the center of the inner bottom end of the box, the other side of the rotating block is rotatably connected to the bottom end of the inner side of the box, the other sides of the small gear and the large gear are rotatably connected to the other bottom end of the inner side of the box, the hand wheel is rotatably connected to the bottom end of one side of the outer wall of the box, the outer sides of the two light rods are fixedly connected to the bottom end of the inner side of the box, and the front and rear ends of the cross plate are respectively sleeved on the outer walls of the light rods.

[0013] As a further solution of the present invention, completely opposite threads are processed on both sides of the outer wall of the screw rod, and every two of the struts are cross-arranged as a group. The center of each group of struts is rotatably connected together by a pin shaft, and the two groups of struts are connected by a connecting rod.

[0014] As a further solution of the present invention, the supporting member includes a top plate, a groove block is fixedly connected to the bottom end of the top plate, an insert block is slidably connected to the bottom end of the groove block, the bottom end of the insert block is fixedly connected to the bottom plate, a pressure rod is slidably connected to the inside of the top plate, a support spring is sleeved on the bottom end of the outer wall of the pressure rod, a threaded tube is fixedly connected to the top end of the pressure rod, a vertical rod is slidably connected to the top end of the threaded tube, a threaded sleeve is threadedly connected to the top end of the outer wall of the threaded tube, the groove block is slidably connected to the inside of the support plate, the top end of the support spring is fixedly connected to the inner top end of the groove block, and the bottom end of the support spring is fixedly connected to the inner bottom end of the insert block.

[0015] As a further solution of the present invention, the front end and the rear end of the upper surface of the bottom plate are respectively processed with a plurality of locking teeth adapted to the rack, and the top array of the threaded tube is provided with a plurality of clamping gaps.

[0016] As a further solution of the present invention, the clamping member includes a ball head, the outer wall of the ball head is rotatably connected to an adapter, the side of the adapter is fixedly connected to a frame, the inside of the front surface and the inside of the back of the frame are slidably connected to buttons, the outside of the button is clamped with a diamond block, the inside of the diamond block is clamped with a slider, the outside of the slider is fixedly connected to a return spring, the inside of the slider is fixedly connected to a clamping block, the inside of the button is fixedly connected to a limit rod, the inside of the button is fixedly connected to an auxiliary spring, the ball head is fixed to the top of the vertical rod, the diamond block is rotatably connected to the four internal corners of the frame through a pin shaft, the outside of the return spring is fixedly connected to the inside of the button, and the limit rod is slidably connected to a slide groove opened inside the frame.

[0017] Beneficial effects of the present invention:

[0018] (1) Through the cooperation of the box, the handle and the cover mechanism, the teaching aids used in the optical experiment can be stored, and the teaching aids can be carried conveniently and quickly. The teaching aids can also be protected to prevent them from being bumped during the carrying process, thereby causing damage to the teaching aids;

[0019] (2) Through the operation of the lifting components in the demonstration mechanism, when an optical experiment demonstration is required, the support plate together with the multiple support components can be lifted out from the inside of the box, so that the initial heights of the multiple support components and the teaching aids remain consistent, which is convenient for subsequent fine-tuning according to experimental requirements. Through the operation of the support components, the spacing between them is conveniently adjusted, and the multiple support components after adjustment are always kept on the same horizontal line, reducing the calibration work during the experiment. At the same time, the support height of the teaching aids set on the top can also be adjusted, making the experimental demonstration process more convenient. Through the operation of the clamping components, light sources of different specifications can be clamped and fixed;

[0020] (3) When conducting a physical optics experiment demonstration, the teaching aids can be carried together with the box to the place where the demonstration is required. The cover plate can be supported to the side of the box to facilitate the display of the experiment and to place other teaching aids. Through the operation of the lifting mechanism, multiple supporting components can be lifted out of the box together, which is convenient for demonstrating the optical experiment and reduces the preliminary preparation work for the optical experiment demonstration. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the connection structure of the physical optics experiment demonstration device of the present invention;

[0022] Figure 2 The present invention Figure 1 Schematic diagram of the connection structure of the middle capping mechanism;

[0023] Figure 3 The present invention Figure 2 Another isometric connection structure diagram of the middle capping mechanism;

[0024] Figure 4 The present invention Figure 3 A schematic diagram of the connection structure of the middle clamping member;

[0025] Figure 5 The present invention Figure 1 Schematic diagram of connection structure in working state;

[0026] Figure 6 The present invention Figure 5 Another isometric connection structure schematic diagram;

[0027] Figure 7 The present invention Figure 5 Schematic diagram of the connection structure of the lifting component;

[0028] Figure 8 The present invention Figure 7 Another isometric connection structure schematic diagram;

[0029] Fig. 9 The present invention Figure 7 Schematic diagram of the connection structure of the middle support member;

[0030] Fig.10 The present invention Fig. 9 A schematic diagram of a cross-sectional connection structure;

[0031] Fig.11 The present invention Figure 7 A schematic diagram of the local enlarged connection structure at point A in the middle;

[0032] Fig.12 The present invention Fig.11 Schematic diagram of the top view cross-section connection structure of the clamping member.

[0033] In the figure: 1, box body; 2, foot; 3, handle; 4, cover mechanism; 401, fixed pulley; 402, steel cable; 403, upper fixed block; 404, lower fixed block; 405, cover plate; 406, clamping member; 4061, support plate; 4062, spring rod; 4063, buckle; 407, cross bar; 408, bump; 5, demonstration mechanism; 501, lifting member; 5011, support seat; 5012, screw rod; 5013, rotating block; 5014, small gear; 5015, large gear; 5016, hand wheel; 5017, light rod; 5018, cross plate; 5019, support rod; 50110, slide plate; 50111, Slide rail; 50112, support plate; 50113, rack; 502, supporting member; 5021, top plate; 5022, slot block; 5023, insert block; 5024, bottom plate; 5025, pressure rod; 5026, supporting spring; 5027, threaded tube; 5028, vertical rod; 5029, threaded sleeve; 503, clamping member; 5031, ball head; 5032, adapter; 5033, frame; 5034, button; 5035, diamond block; 5036, slider; 5037, return spring; 5038, clamp block; 5039, limit rod; 50310, auxiliary spring; 504, shading plate; 505, imaging plate. DETAILED DESCRIPTION

[0034] 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 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 creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] See also Figure 1-Figure 4 As shown, the present invention is a physical optics experiment demonstration device, comprising a box body 1, the bottom four corners of the box body 1 are fixedly connected with feet 2, the feet 2 are used to support the box body 1, the left and right sides of the front end and the rear end of the outer wall of the box body 1 are slidably connected with handles 3, the handles 3 are used to drive the box body 1 to transfer, so that the box body 1 is easy to carry, and the top of the box body 1 is provided with a cover mechanism 4, the cover mechanism 4 is used to enclose the demonstration mechanism 5 set inside the box body 1, and can be extended into a workbench through the cooperation with the handle 3, for placing other teaching tools;

[0037] The capping mechanism 4 comprises a fixed pulley 401, the outer wall of which is sleeved with a steel cable 402, which is used to drive an upper fixed block 403 and a lower fixed block 404 to move. When the upper fixed block 403 slides to one side, the steel cable 402 will be pulled to rotate on the outer wall of the fixed pulley 401, thereby driving the lower fixed block 404 to slide to the other side. The upper fixed block 403 is fixedly connected to the center of the top end of the outer wall of the steel cable 402, and the lower fixed block 404 is fixedly connected to the center of the bottom end of the outer wall of the steel cable 402. The upper fixed block 403 and the lower fixed block 404 are used to drive two cover plates 405 to move in opposite directions. The inner sides of the upper fixed block 403 and the lower fixed block 404 are fixedly connected with a cover plate 405, and the cover plate 405 is used to cap the top end of the box body 1. The center of the lower surface of the cover plate 405 is provided There is a clamping component 406, which is used to clamp the middle section of the outer wall of the lift. A cross bar 407 is arranged on the outer side of the bottom end of the cover plate 405. The cross bar 407 is used to fix the protrusion 408 and limit the sliding stroke of the cover plate 405 to prevent the cover plate 405 from slipping off the top end of the box body 1. The top end of the cross bar 407 is fixed with a protrusion 408, which is used to support the cover plate 405 and limit the sliding trajectory of the cover plate 405. The outer side of the fixed pulley 401 is rotatably connected to the four corners of the inner top end of the box body 1. The fixed pulley 401 is used to support the steel cable 402. The outer side of the cross bar 407 is fixed to the outer side of the inner top end of the box body 1. The two cover plates 405 are buckled on the top end of the box body 1, and the cover plate 405 is slidably connected to the outer wall of the protrusion 408.

[0038] In this embodiment, preferably, a buckle is provided on the outer side of the upper surface of the two cover plates 405 to facilitate pulling the cover plates 405 to move, and the inner sides of the two cover plates 405 are processed with magnetic strips, and the two magnetic strips processed on the inner sides of the cover plates 405 attract each other, thereby fixing the closed cover plates 405, and a magnetic strip is also processed on the inner side of the protrusion 408, and the inner wall of the two cover plates 405 close to the upper fixing block 403 and the lower fixing block 404 is processed with an iron sheet of the same specification as the magnetic strip arranged on the inner side of the protrusion 408, and the magnetic strip processed on the inner side of the protrusion 408 can adsorb the iron sheet, thereby fixing the unfolded cover plates 405 when the two cover plates 405 are unfolded.

[0039] In this embodiment, preferably, the clamping component 406 includes a support plate 4061, a spring rod 4062 is fixedly connected to the side of the support plate 4061, the spring rod 4062 is used to pull the buckle 4063, the top of the outer wall of the spring rod 4062 is fixedly connected to the buckle 4063, the buckle 4063 is used to clamp the outer wall of the handle 3, the support plate 4061 is rotatably connected to the inner center of the lower surface of the cover plate 405 through a pin shaft, and a torsion spring is processed at the connection between the support plate 4061 and the pin shaft, the spring rod 4062 is composed of an insert tube, a sleeve and a connecting spring, the side of the insert tube is fixedly connected to the bottom end of the side of the support plate 4061, and the insert tube is slidably connected to the inside of the side of the sleeve, the two sides of the connecting spring are respectively fixedly connected to the inner side of the insert tube and the inner side of the sleeve, the bottom end of the buckle 4063 is fixedly connected to the top of the outer wall of the sleeve, and the inner side of the buckle 4063 is processed into a semi-arc shape that fits the outer wall of the handle 3.

[0040] In summary, when the device needs to be used for physical optics experiment demonstration, the demonstration teaching aids needed for the experiment can be carried to the place where they are needed through the cooperation of the handle 3 and the box 1. Before conducting the teaching demonstration, the handle 3 is laid outward, and then the cover plate 405 on one side is pulled. When the cover plate 405 slides to the side of the box 1, the upper fixed block 403 fixed to the front surface and the top of the back of the cover plate 405 will be driven to slide to the side at the same time. When the upper fixed block 403 slides, the steel cable 402 will be pulled to rotate on the outer wall of the fixed pulley 401, so that the lower fixed block 404 is driven to slide to the other side of the box 1 through the steel cable 402, so that the cover plate 405 on the other side is driven to slide through the lower fixed block 404, so that the cover plate 405 can be unfolded from the top of the box 1. After the cover plate 405 slides outward to a certain extent, it will fit to the inner side of the cross bar 407. At the same time, the processing The magnetic strip on the inner side of the protrusion 408 will also be attracted to the iron sheet processed inside the cover 405, so that the cover 405 can be fixed, and then the handle 3 is pulled outward and lifted to the bottom end of the cover 405, the support plate 4061 in the clamping member 406 is buckled open, and then the buckle 4063 is pulled to one side. After the buckle 4063 is pulled open, the middle section of the outer wall of the handle 3 is clamped to the inner side of the buckle 4063, and the spring rod 4062 can drive the buckle 4063 to reset, and the inside of the buckle 4063 is buckled to the middle section of the outer wall of the handle 3, so that the handle 3 can be clamped. While the handle 3 is being clamped, the handle 3 will support the cover 405 to form a stable triangle, thereby enhancing the supporting strength of the cover 405, so that other teaching aids can be placed on the top of the cover 405, which is convenient for optical experiment demonstration.

[0041] Embodiment 2

[0042] Please participate Figure 5-Figure 12As shown, on the basis of the first embodiment, a demonstration mechanism 5 is arranged inside the box 1, and the demonstration mechanism 5 is used to demonstrate physical optics experiments, so that students can observe various optical phenomena more intuitively, thereby improving the teaching quality. The demonstration mechanism 5 includes a lifting member 501, and the lifting member 501 is used to drive multiple supporting members 502 to lift and lower. Multiple supporting members 502 are arranged on the inner side of the top of the lifting member 501. The multiple supporting members 502 are respectively used to support the clamping member 503, the shading plate 504 and the imaging plate 505, and can adjust the support height of the experimental tools arranged on the top thereof and the distance between each experimental tool. The tops of the multiple supporting members 502 are respectively provided with clamping members 503, shading plates 504 and imaging plates 505. The clamping member 503 is used to clamp and fix the light source, such as candles and flashlights of different thicknesses. The lifting member 501 is arranged at the bottom of the box 1.

[0043] In this embodiment, preferably, the lifting component 501 includes a support seat 5011, and the internal rotation of the support seat 5011 is connected to a screw rod 5012, and the screw rod 5012 is used to drive the cross plate 5018 to move. A rotating block 5013 is fixedly connected to the side of the screw rod 5012, and the rotating block 5013 is used to support the side of the screw rod 5012. A small gear 5014 is fixedly connected to the other side of the screw rod 5012, and the small gear 5014 is used to drive the screw rod 5012 to rotate. The outer wall side of the small gear 5014 is meshingly connected to a large gear 5015, and the large gear 5015 is used to drive the small gear 5014 to rotate. A hand wheel 5016 is fixedly connected to the side of the large gear 5015, and the hand wheel 5016 is used to drive the large gear The wheel 5015 rotates, and the front and rear ends of the outer sides of the screw rod 5012 are provided with light rods 5017, and the light rods 5017 are used to limit the movement trajectory of the cross plate 5018, so that the cross plate 5018 maintains horizontal linear motion. The outer walls of the screw rod 5012 are respectively threadedly connected with cross plates 5018 on both sides, and the cross plates 5018 are used to support the bottom ends of the struts 5019, and the spacing between the two struts 5019 in each group of struts 5019 can be adjusted, so as to prop up or put down the struts 5019. The top ends of the two cross plates 5018 are rotatably connected with a plurality of struts 5019, and the plurality of struts 5019 are used to support the slide plate 50110, and the height between the plurality of struts 5019 can be adjusted. , the support height of the slide plate 50110 can be adjusted, the top ends of the plurality of support rods 5019 are rotatably connected with the slide plate 50110, the slide plate 50110 is used to support the top ends of the support rods 5019, the top ends of the slide plates 50110 are slidably connected with the slide rails 50111, the slide rails 50111 are used to support the slide plate 50110, and the slide plate 50110 can slide on the bottom end of the outer wall of the slide rails 50111, the top ends of the slide rails 50111 are fixedly connected with the support plates 50112, the support plates 50112 are used to support the support member 502, a slideway is provided at the center of the support plates 50112, the support member 502 can slide inside the slideway, and the lower surface of the support plates 50112 is fixedly connected with the gears The rack 50113 is used to engage the latching teeth processed on the top of the bottom plate 5024, so as to fix the position of the supporting mechanism. The bottom end of the supporting seat 5011 is fixedly connected to the center of the inner bottom end of the box body 1. The supporting seat 5011 is used to support the screw rod 5012. The other side of the rotating block 5013 is rotatably connected to the bottom end of the inner side of the box body 1. The other sides of the small gear 5014 and the large gear 5015 are both rotatably connected to the bottom end of the other side of the inner part of the box body 1. The handwheel 5016 is rotatably connected to the bottom end of one side of the outer wall of the box body 1. The outer sides of the two light rods 5017 are both fixedly connected to the bottom end of the inner side of the box body 1. The front end and the rear end of the cross plate 5018 are respectively sleeved on the outer wall of the light rod 5017.

[0044] In this embodiment, preferably, completely opposite threads are processed on both sides of the outer wall of the screw rod 5012. Since the outer wall of the screw rod 5012 is processed on the completely opposite threads, when the screw rod 5012 rotates, the two cross plates 5018 threadedly connected on both sides of its outer wall can be driven to move in opposite directions at the same time. Every two struts 5019 are cross-arranged as a group, and the center of each group of struts 5019 is rotatably connected together by a pin shaft, and the two groups of struts 5019 are connected by a connecting rod.

[0045] In this embodiment, preferably, the support member 502 includes a top plate 5021, and a groove block 5022 is fixedly connected to the bottom end of the top plate 5021. The groove block 5022 is used to drive the top plate 5021 to slide inside the slideway opened inside the support plate 50112. The bottom end of the groove block 5022 is internally slidably connected to an insert block 5023, and the insert block 5023 is used to fix the bottom plate 5024. The bottom end of the insert block 5023 is fixedly connected to the bottom plate 5024, and the bottom plate 5024 can be clamped to the bottom of the rack 50113. The top plate 5021 is slidably connected to the inner side of the top plate 5021, and the pressure rod 5025 is used to press the plug block 5023. The outer wall bottom end of the pressure rod 5025 is sleeved with a support spring 5026, and the support spring 5026 is used to fix the plug block 5023 and the bottom plate 5024. After the bottom plate 5024 is pressed downward, the bottom plate 5024 can be driven to reset. , so that the bottom plate 5024 is re-attached to the inside of the rack 50113, the top of the pressure rod 5025 is fixedly connected with a threaded tube 5027, the threaded tube 5027 is used to support the vertical rod 5028, and the vertical rod 5028 can be inserted and pulled out of the top of the threaded tube 5027, so as to adjust the overall support height of the support member 502, the top of the threaded tube 5027 is slidably connected with the vertical rod 5028, and the vertical rod 5028 is used to adjust the clamping member 503 and the shielding member 503 arranged at the top thereof. The light plate 504 and the imaging plate 505 are fixed, and the top end of the outer wall of the threaded tube 5027 is threadedly connected with a threaded sleeve 5029, and the threaded sleeve 5029 is used to clamp the top end of the outer wall of the threaded tube 5027, so as to lock the vertical rod 5028 with adjusted height, and the groove block 5022 is slidably connected to the inside of the support plate 50112, and the top end of the support spring 5026 is fixedly connected to the inner top end of the groove block 5022, and the bottom end of the support spring 5026 is fixedly connected to the inner bottom end of the plug block 5023.

[0046] In this embodiment, preferably, the front and rear ends of the upper surface of the base plate 5024 are respectively processed with a plurality of locking teeth compatible with the rack 50113, and the top array of the threaded tube 5027 is provided with a plurality of clamping gaps. By presetting the clamping gap at the top of the threaded tube 5027, when the threaded sleeve 5029 is screwed to the top of the outer wall of the threaded tube 5027, the threaded tube 5027 will lock the outer wall of the vertical rod 5028, thereby maintaining the support height of the vertical rod 5028. When it is necessary to adjust the support height of the vertical rod 5028, the threaded sleeve 5029 is screwed in the opposite direction to move the threaded sleeve 5029 to the bottom end of the outer wall of the threaded tube 5027, thereby canceling the clamping of the outer wall of the vertical rod 5028 and adjusting the support height of the vertical rod 5028.

[0047] In this embodiment, preferably, the clamping member 503 includes a ball head 5031, the outer wall of the ball head 5031 is rotatably connected to an adapter 5032, the adapter 5032 is used to fix the frame 5033, and the support angle of the frame 5033 can be adjusted, the side of the adapter 5032 is fixedly connected to the frame 5033, the frame 5033 is used to support the button 5034, the front surface and the back of the frame 5033 are both slidably connected to the button 5034, and the button 5034 is used to drive the outer side of the diamond block 5035 to move forward. The button 5034 is rotated, and the inner and outer sides of the button 5034 are clamped with diamond blocks 5035, which are used to drive the slider 5036 to move. Since the diamond blocks 5035 are rotatably connected to the inner four corners of the frame 5033 through the pin shaft, when the button 5034 is pressed, the inner and outer sides of the button 5034 will drive the outer side of the diamond block 5035 to slide toward the center of the frame 5033. At this time, the inner side of the diamond block 5035 will rotate outward with the pin shaft connecting the diamond block 5035 and the frame 5033 as the axis, thereby driving the slider 5036 slides toward the outside of the frame 5033, a slider 5036 is clamped on the inner side of the diamond block 5035, and the slider 5036 is used to drive the clamping block 5038 to move, and a reset spring 5037 is fixed on the outer side of the slider 5036, and the reset spring 5037 is used to reset the slider 5036, and a clamping block 5038 is fixed on the inner side of the slider 5036, and the clamping block 5038 is used to clamp and fix light sources of different specifications, and a limiting rod 5039 is fixed on the inner side of the button 5034, and the limiting rod 5039 is used to limit the button 5034 The pressing stroke is limited, an auxiliary spring 50310 is fixed to the inner side of the outer wall of the button 5034, the auxiliary spring 50310 is used to assist the reset spring 5037 in resetting, the ball head 5031 is fixed to the top of the vertical rod 5028, the ball head 5031 is used to support the adapter 5032, the diamond block 5035 is rotatably connected to the four inner corners of the frame 5033 through the pin shaft, the outer side of the reset spring 5037 is fixed to the inner side of the button 5034, and the limit rod 5039 is slidably connected to the slide groove opened inside the frame 5033.

[0048] In summary, after the capping mechanism 4 is unfolded and the cover plate 405 is fixed, the hand wheel 5016 is first shaken to drive the large gear 5015 to rotate. When the large gear 5015 rotates, the small gear 5014 meshing with the side of the large gear 5015 will be driven to rotate at the same time. Since the diameter of the large gear 5015 is larger than that of the small gear 5014, the small gear 5014 will be driven to rotate multiple circles when the large gear 5015 rotates one circle, so the small gear 5014 can be driven to rotate quickly. When the small gear 5014 rotates, it will drive the screw rod 5012 fixedly connected to the side of the small gear 5014 to rotate synchronously. When the screw rod 5012 rotates, it will drive the screw rods 5012 threadedly connected to the outer walls of the screw rod 5012 on both sides. The horizontal plates 5018 on both sides slide toward the direction of the support seat 5011 at the same time. In the process of the two horizontal plates 5018 moving, the bottom ends of the support rods 5019 are also driven to approach each other, thereby propping up the support rods 5019. In the process of propping up the support rods 5019, the support plates 50112 are driven to slide upward at the same time, so that the support plates 50112 together with the multiple support structures arranged on the top thereof can be lifted out of the interior of the box body 1, so that the physical optics experiment can be demonstrated. On the contrary, when it is necessary to retract the support plates 50112 into the interior of the box body 1, the hand wheel 5016 is shaken in the opposite direction, and the large gear 5015 is driven by the hand wheel 5016 to rotate in the opposite direction, so that the large gear 5015 and the small gear 5014 can cooperate with each other. The screw rod 5012 is also driven to rotate in the opposite direction, so that the two cross plates 5018 can slide toward the side of the box body 1 at the same time. In the process of the cross plates 5018 sliding toward the side of the box body 1, the distance between the bottom ends of the support rods 5019 will be increased, so that the originally propped up support rods 5019 can be laid down, thereby changing the supporting height of the support rods 5019 on the support plates 50112, and the support plates 50112 are retracted into the inside of the box body 1. After the supporting height of the support plates 50112 is adjusted, the button 5034 in the clamping member 503 is pressed inwardly. When the button 5034 moves toward the inside of the frame 5033, the slider 5036 is driven to slide toward the outside of the frame 5033 through the diamond block 5035, so that the clamping block 503 8 is retracted to the inside of the frame 5033. At this time, the light source to be used is inserted into the inside of the frame 5033, and then the button 5034 is released. The button 5034 and the slider 5036 can be reset through the cooperation between the reset spring 5037 and the auxiliary spring 50310, and the clamping block 5038 is driven by the slider 5036 to clamp the outer wall of the light source, which is convenient for optical experiments. During the experiment, it is often necessary to adjust the distance between the light source and the shading plate 504, or the distance between the shading plate 504 and the imaging plate 505. When it is necessary to adjust the distance between the light source, the shading plate 504 and the imaging plate 505, the pressure rod 5025 in the support member 502 is pressed downward.The pressure rod 5025 drives the insert block 5023 and the bottom plate 5024 to move downward together, so that the card block can cancel the card connection with the rack 50113, so that the slot block 5022 can slide in the slideway provided inside the support plate 50112, so as to facilitate the adjustment of the distance between the light source, the light shielding plate 504 and the imaging plate 505. After the distance is adjusted, the pressure rod 5025 is released, and the bottom plate 5024 and the insert block 5023 can be reset by the rebound force generated by the deformation of the support spring 5026 under force, so that the bottom plate 5024 and the insert block 5023 can be reset. 024 is re-engaged at the bottom end of the rack 50113. When the support height of the experimental tool set on the support member 502 needs to be adjusted, the threaded sleeve 5029 is screwed to move the threaded sleeve 5029 to the bottom end of the outer wall of the threaded tube 5027, so that the locking of the top end of the threaded tube 5027 can be cancelled, so that the vertical rod 5028 can be inserted and pulled out of the threaded tube 5027, thereby adjusting the support height of the vertical rod 5028. After the adjustment, the threaded sleeve 5029 is re-tightened to the top end of the outer wall of the threaded tube 5027.

[0049] Embodiment 3

[0050] See also Figure 1-Figure 12 , the present embodiment is obtained by combining the first embodiment with the second embodiment. When performing a physical optics experiment demonstration, the teaching aids can be carried to the place where the demonstration is required through the box 1. Then, through the cooperation of the cover mechanism 4, the cover plate 405 can be supported to the side of the box 1, which is convenient for displaying the experiment and can place other teaching aids. Through the operation of the lifting mechanism, multiple supporting members 502 can be lifted out of the box 1 together, which is convenient for demonstrating the optical experiment and reduces the preliminary preparation work required for the optical experiment demonstration.

[0051] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of application of the present invention.

Claims

1. A physical optics experiment demonstration device, comprising a box, wherein the bottom four corners of the box are fixedly connected with feet, and the left and right sides of the front and rear ends of the outer wall of the box are slidably connected with handles, characterized in that: A sealing mechanism is provided at the top of the box body; The covering mechanism comprises a fixed pulley, the outer wall of the fixed pulley is sleeved with a steel cable, an upper fixed block is fixedly connected to the center of the top end of the outer wall of the steel cable, and a lower fixed block is fixedly connected to the center of the bottom end of the outer wall of the steel cable, the inner sides of the upper and lower fixed blocks are fixedly connected to cover plates, a clamping component is provided at the center of the lower surface of the cover plate, a cross bar is provided on the outer side of the bottom end of the cover plate, and a protrusion is fixedly connected to the top end of the cross bar, the outer side of the fixed pulley is rotatably connected to the four corners of the inner top end of the box body, the outer side of the cross bar is fixedly connected to the outer side of the inner top end of the box body, the two cover plates are buckled on the top end of the box body, and the cover plates are slidably connected to the outer walls of the protrusions.

2. A physical optics experiment demonstration device according to claim 1, characterized in that: The outer sides of the upper surfaces of the two cover plates are provided with buckles, and the inner sides of the two cover plates are processed with magnetic strips, the inner sides of the protrusions are also processed with magnetic strips, and the inner walls of the two cover plates are processed with iron sheets of the same specifications as the magnetic strips arranged on the inner sides of the protrusions on one side close to the upper fixed block and the lower fixed block.

3. A physical optics experiment demonstration device according to claim 1, characterized in that: The clamping component includes a support plate, a spring rod is fixedly connected to the side surface of the support plate, a buckle is fixedly connected to the top end of the outer wall of the spring rod, the support plate is rotatably connected to the inner center of the lower surface of the cover plate through a pin shaft, and a torsion spring is processed at the connection between the support plate and the pin shaft, the spring rod is composed of an insert tube, a sleeve and a connecting spring, the side surface of the insert tube is fixedly connected to the bottom end of the side surface of the support plate, and the insert tube is slidably connected to the inside of the side surface of the sleeve, the two sides of the connecting spring are respectively fixedly connected to the inner side of the insert tube and the inner side of the sleeve, the bottom end of the buckle is fixedly connected to the top end of the outer wall of the sleeve, and the inner side of the buckle is processed into a semi-arc shape that fits the outer wall of the handle.

4. A physical optics experiment demonstration device according to claim 1, characterized in that: A demonstration mechanism is arranged inside the box, and the demonstration mechanism includes a lifting component, a plurality of supporting components are arranged on the inner side of the top end of the lifting component, a clamping component, a shading plate and an imaging plate are respectively arranged on the top ends of the plurality of supporting components, and the lifting component is arranged at the inner bottom end of the box.

5. A physical optics experiment demonstration device according to claim 4, characterized in that: The lifting component includes a support seat, a screw rod is rotatably connected inside the support seat, a rotating block is fixedly connected to the side of the screw rod, a small gear is fixedly connected to the other side of the screw rod, a large gear is meshedly connected to the side of the outer wall of the small gear, a hand wheel is fixedly connected to the side of the large gear, a smooth rod is provided at the front and rear ends of the outer side of the screw rod, and cross plates are respectively threadedly connected to the two sides of the outer wall of the screw rod, a plurality of support rods are rotatably connected to the top of the two cross plates, and a slide plate is rotatably connected to the top of the plurality of support rods, and the top of the slide plate is internally A slide rail is slidably connected, a support plate is fixedly connected to the top of the slide rail, a rack is fixedly connected to the lower surface of the support plate, the bottom end of the support seat is fixedly connected to the center of the inner bottom end of the box body, the other side of the rotating block is rotatably connected to the bottom end of the inner side of the box body, the other sides of the small gear and the large gear are rotatably connected to the other bottom end of the inner side of the box body, the hand wheel is rotatably connected to the bottom end of one side of the outer wall of the box body, the outer sides of the two light rods are fixedly connected to the bottom end of the inner side of the box body, and the front and rear ends of the cross plate are respectively sleeved on the outer walls of the light rods.

6. A physical optics experiment demonstration device according to claim 5, characterized in that: The outer wall of the screw rod is processed with completely opposite threads on both sides, and every two struts are cross-arranged as a group. The center of each group of struts is rotatably connected together by a pin shaft, and the two groups of struts are connected by a connecting rod.

7. A physical optics experiment demonstration device according to claim 4, characterized in that: The supporting member includes a top plate, a slot block is fixedly connected to the bottom end of the top plate, an insert block is slidably connected to the bottom end of the slot block, the bottom end of the insert block is fixedly connected to the bottom plate, a pressure rod is slidably connected to the inside of the top plate, a supporting spring is sleeved on the bottom end of the outer wall of the pressure rod, a threaded tube is fixedly connected to the top end of the pressure rod, a vertical rod is slidably connected to the top end of the threaded tube, a threaded sleeve is threadedly connected to the top end of the outer wall of the threaded tube, the slot block is slidably connected to the inside of the support plate, the top end of the support spring is fixedly connected to the inner top end of the slot block, and the bottom end of the support spring is fixedly connected to the inner bottom end of the insert block.

8. A physical optics experiment demonstration device according to claim 7, characterized in that: The front end and the rear end of the upper surface of the bottom plate are respectively processed with a plurality of clamping teeth matched with the rack, and the top array of the threaded tube is provided with a plurality of clamping gaps.

9. A physical optics experiment demonstration device according to claim 4, characterized in that: The clamping member includes a ball head, the outer wall of the ball head is rotatably connected to an adapter, the side of the adapter is fixedly connected to a frame, the inside of the front surface and the inside of the back of the frame are slidably connected to buttons, the outside of the button is clamped with a diamond block, the inside of the diamond block is clamped with a slider, the outside of the slider is fixedly connected to a return spring, the inside of the slider is fixedly connected to a clamping block, the inside of the button is fixedly connected to a limit rod, the inside of the button is fixedly connected to an auxiliary spring, the ball head is fixed to the top of the vertical rod, the diamond block is rotatably connected to the four internal corners of the frame through a pin shaft, the outside of the return spring is fixedly connected to the inside of the button, and the limit rod is slidably connected to a slide groove opened in the frame.

Images