Experiment box
By designing a multifunctional experimental box, the safety hazards and unsatisfactory effects of the experimental materials for the formation of stroke in the prior art were solved, and the switching of multiple experiments in the box and the stimulation of students' learning interest was achieved.
Patent Information
- Application Number
- CN202322924400.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-30
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2033-10-30
AI Technical Summary
The experimental materials used for the formation of teaching wind in the prior art have safety hazards and poor results, and the experimental structure is simple and difficult to switch to perform multiple experiments.
An experimental box is designed, including a box, support column, air inlet, light hole, kit socket and air outlet, which can perform wind formation and light refraction and reflection experiments through replacement of the combination kit and supporting components.
A multi-purpose experimental device for the box is realized, which can stimulate students' interest in learning, and provides better observation effects through the design of frosted glass and transparent acrylic plates, and further optimizes the observation effects of optical experiments through the light-shading cloth.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to an experimental box and belongs to the technical field of teaching tools. Background Art
[0002] In the teaching demonstration of the formation of wind, the prior art uses a simple experimental material made of a paper tube. A small round hole and a short candle are opened at the bottom of the paper tube. During the experiment, the candle is lit in the paper cylinder to heat the air in the paper tube, so that the hot air flow rises. A mosquito coil is lit outside the paper tube and placed below the small round hole. The smoke of the mosquito coil enters the paper tube and is discharged with the rising air flow. Although the experiment can be successful, the observed effect is not very ideal. It is not similar to the wind (horizontal drift) in nature. What students see is a phenomenon without wind - the smoke rises straight up. This material provided by the instrument room also has safety hazards. The candle burns in the paper tube. After a long time, the paper tube will burn. Students can only be required to extinguish the candle immediately after seeing the experimental phenomenon, which is not conducive to students' exploration of the formation of wind; at the same time, the experimental structure in the prior art is relatively simple, and it cannot be switched to perform a variety of experimental changes. Utility Model Content
[0003] In order to solve the above problems existing in the prior art, the utility model provides an experimental box capable of switching to conduct experiments such as wind formation and light refraction and reflection.
[0004] The technical solution of the utility model is as follows:
[0005] An experimental box includes a box body, a support column is arranged at the bottom of the box body, an air inlet is arranged at the lower end of the left side wall of the box body, a light hole is arranged in the middle of the left side wall of the box body, a kit socket is arranged at the bottom of the box body, and an air outlet corresponding to the kit socket is arranged at the top of the box body; the experimental box also includes a combination kit that is plugged into and matched with the kit socket, and a matching component is installed on the air outlet.
[0006] Among them, the combination kit includes a socket that is snap-connected to the socket of the kit, and a heating element is arranged on the top of the socket; the experimental box also includes a smoke generating component arranged on the outside of the box, and the smoke generating component is arranged next to the air inlet; the matching component includes an outlet pipe installed on the air outlet, and the end of the outlet pipe is rotatably connected to a fan.
[0007] Wherein, an L-shaped connecting rod is arranged on the end side wall of the air outlet pipe, the fan comprises a turntable and fan blades fixedly connected to the turntable, a turning hole is arranged in the middle of the turntable, and the end of the L-shaped connecting rod is rotatably connected to the turning hole.
[0008] Among them, the combination kit includes a base that is snap-connected to the kit socket, the base is provided with a groove, a rotating rod is rotatably arranged inside the groove, one end of the rotating rod rotates through the base, a first lens is rotatably connected to the rotating rod, and the matching component includes an L-shaped tube installed on the air outlet, and a second lens is obliquely arranged inside the bending part of the L-shaped tube.
[0009] The left and right side walls of the box are made of frosted glass, the front of the box is a transparent acrylic plate, and the outer side of the transparent acrylic plate is removably covered with a blackout cloth.
[0010] The utility model has the following beneficial effects:
[0011] This device has multiple uses in one box. Optical experiments and hot air experiments can be carried out by replacing the combination kit and supporting components, which can stimulate students' interest in learning. The left and right side walls of the box are made of frosted glass, which is used to observe the interior during optical experiments. The front of the box is a transparent acrylic plate for observation during hot air experiments. At the same time, a blackout cloth can be used to achieve better observation effects during optical experiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;
[0013] Figure 2 This is a schematic diagram of the fan structure of the utility model;
[0014] Figure 3 This is a schematic diagram of the structure of the second embodiment of the utility model;
[0015] Figure 4 This is a schematic diagram of the base structure of the utility model.
[0016] The reference numerals in the figure are as follows:
[0017] 1. Box body; 2. Card seat; 3. Base; 11. Air inlet; 12. Light hole; 13. Kit socket; 14. Air outlet; 21. Heater; 23. Air outlet pipe; 24. Turntable; 25. Fan blades; 26. Turning hole; 31. Turning rod; 32. First lens; 33. L-shaped tube; 34. Second lens. DETAILED DESCRIPTION
[0018] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.
[0019] See also Figures 1 to 4 , the utility model provides a technical solution:
[0020] An experimental box comprises a box body 1, four supporting columns are arranged at the bottom of the box body 1, the left and right side walls of the box body 1 are made of frosted glass for observing the interior when conducting optical experiments, the front of the box body 1 is a transparent acrylic plate, and the outer side of the transparent acrylic plate is detachably covered with a blackout cloth; the overall length, width and height of the box body 1 are 30 cm, 18 cm and 12 cm respectively, an air inlet 11 with a diameter of 2 cm is arranged at the lower end of the left side wall of the box body 1, a light hole 12 with a diameter of 2 mm is arranged in the middle of the left side wall of the box body 1, a kit socket 13 with a diameter of 6 cm is arranged at the bottom of the box body 1, and an air outlet 14 with a diameter of 4 cm corresponding to the kit socket 13 is arranged at the top of the box body 1; the experimental box also includes a combination kit plugged into and matched with the kit socket 13, and a matching component is installed on the air outlet 14.
[0021] Embodiment 1:
[0022] When conducting the "Causes of Wind" experiment, the combination kit includes a holder 2 that is snapped into the kit socket 13, a heating element 21 is arranged on the top of the holder 2, the heating element 21 can be a candle, an electric stove, etc., the experimental box also includes a smoke generating component arranged on the outside of the box body 1, the smoke generating component can be a mosquito coil, etc., and the smoke generating component is arranged on the outside of the air inlet 11; the matching component includes an outlet pipe 23 installed on the air outlet hole 14, an L-shaped connecting rod is arranged inside the end of the outlet pipe 23, the L-shaped connecting rod is bent by steel wire, and the L-shaped connecting rod is fixed to the inner wall of the outlet pipe 23, so that its end is bent upward and is just located at the outlet of the outlet pipe 23. In the center, the end of the L-shaped connecting rod is rotatably connected to a fan, which includes a turntable 24 and a fan blade 25 fixedly connected to the turntable 24. A turntable 24 is provided with a turn hole 26 in the middle, and the end of the L-shaped connecting rod is rotatably connected to the turn hole 26. During the experiment, the blackout cloth is opened, and the lit mosquito coil is placed close to the air inlet 11. It is observed that the smoke floats upward and does not enter the air inlet 11, and the fan does not rotate. Then the heating element 21 on the card holder 2 is started, that is, the candle is lit, and then the card holder 2 is connected to the kit socket 13. It can be observed that the smoke enters the air inlet 11 and floats into the air outlet pipe 23 in the box body 1, and the fan starts to rotate.
[0023] The experiment uses the principle that "hot air is lighter than cold air" and flows upward, and "air flow forms wind". Since the candle heats the air above after burning, the hot air is lighter than the cold air and flows upward, which reduces the air pressure above the candle flame and forms a low-pressure area. The air around the flame will flow in to supplement this low-pressure area, which in turn causes the inside of the box 1 to become a low-pressure area relative to the outside of the box 1. The air outside the box 1 enters the box 1 through the air inlet 11 at the lower left side. In this way, the hot air rises, and the cold air flows in to supplement it. The repeated air flow forms wind.
[0024] As a preferred embodiment, the outside of the air outlet pipe 23 can be covered with a plastic bag to carry out hot air balloon experiments.
[0025] Embodiment 2:
[0026] When conducting an optical experiment, the combination kit includes a base 3 that is snapped into the kit socket 13. The base 3 is provided with a groove, and a rotating rod 31 is rotatably arranged inside the groove. The width of the base 3 is greater than the thickness of the bottom of the box 1. One end of the rotating rod 31 rotates through the base 3 and is exposed to the outside. A first lens 32 is rotatably connected to the rotating rod 31. The first lens 32 is located in the groove, and the angle of the first lens 32 can be adjusted by the rotating rod 31. The matching component includes an L-shaped tube 33 installed on the air outlet 14. A second lens 34 is obliquely arranged inside the bend of the L-shaped tube 33. The second lens 34 is set at an angle of 45 degrees. During the experiment, close the box visor, adjust the angle of the first lens 32 to 45 degrees by the rotating rod 31, and then observe the interior from the air inlet 11. The scenery reflected on the second lens 34 can be seen through the first lens 32.
[0027] As a preferred embodiment, a light hole 12 is provided in the middle of the left side wall of the box body 1, and the light hole 12 can be used for performing pinhole imaging experiments.
[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. An experimental box, characterized in that: The experimental box comprises a box body (1), a support column is arranged at the bottom of the box body (1), an air inlet (11) is arranged at the lower end of the left side wall of the box body (1), a kit socket (13) is arranged at the bottom of the box body (1), and an air outlet (14) corresponding to the kit socket (13) is arranged at the top of the box body (1); the experimental box also comprises a combination kit plugged into and matched with the kit socket (13), and a matching component is installed on the air outlet (14).
2. A test box as claimed in claim 1, characterized in that: The combined kit comprises a card holder (2) which is snap-connected to the kit socket (13), and a heating element (21) is arranged on the top of the card holder (2); the experimental box also comprises a smoke generating element arranged outside the box body (1), and the smoke generating element is arranged beside the air inlet (11); the matching component comprises an air outlet pipe (23) installed on the air outlet (14), and the end of the air outlet pipe (23) is rotatably connected to a fan.
3. A test box as claimed in claim 2, characterized in that: An L-shaped connecting rod is arranged on the end side wall of the air outlet pipe (23); the fan comprises a rotating disk (24) and a fan blade (25) fixedly connected to the rotating disk (24); a rotating hole (26) is arranged in the middle of the rotating disk (24); and the end of the L-shaped connecting rod is rotatably connected to the rotating hole (26).
4. The test box according to claim 1, characterized in that: The combined kit comprises a base (3) snap-fitted to the kit socket (13), the base (3) being provided with a groove, a rotating rod (31) being rotatably arranged inside the groove, one end of the rotating rod (31) being rotatably passed through the base (3), a first lens (32) being rotatably connected to the rotating rod (31), and the matching component comprises an L-shaped tube (33) mounted on the air outlet (14), a second lens (34) being obliquely arranged inside the bending part of the L-shaped tube (33).