Air flow observation box

Abstract

The utility model discloses an air flow observation box which comprises an observation box body, the top of one side face of the observation box body is fixedly connected with an air inlet pipe through a through hole, the other side face of the observation box body is fixedly connected with an air outlet pipe through a through hole, and the front face and the back face of the observation box body are fixedly connected with transverse observation glass windows. The upper end of the observation box body is fixedly connected with a supporting outer frame by forming a through groove, the inner bottom wall of the observation box body is fixedly connected with a supporting lapping rod, and the two sides of the upper end of the supporting lapping rod are fixedly connected with an infrared lamp and mosquito-repellent incense respectively. According to the mosquito-repellent incense observation box, the adjusting top block serves as a support, the supporting shifting block is shifted in the hollow supporting block to rotate the rubber suction cup, the rubber suction cup is adsorbed to a table top, the table top is stably supported by the observation box body, and therefore when a student knocks down the observation box not slightly, the mosquito-repellent incense in the observation box body is kept stable and does not fall down; and fire disasters caused by the fact that a fire source touches the bottom wall of the carton are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching tools, in particular to an air flow observation box. Background Art

[0002] Teaching aids refer to various tools and materials used in the teaching process, which can help teachers teach better, stimulate students' interest in learning, and improve learning outcomes. Model demonstrations help students intuitively understand the structure and characteristics of things, while the teaching content on the blackboard expands basic knowledge. Projectors and slides are used to display multimedia materials such as pictures, charts, and videos, making the classroom more vivid. Therefore, the selection and use of teaching aids need to be reasonably arranged and applied according to different subjects, teaching objectives, and teaching methods.

[0003] According to a hot air flow demonstration teaching aid disclosed in patent search publication number CN219716274U, its beneficial effects are: it can intuitively show students the physical phenomenon of hot air flow, which is convenient for teachers to demonstrate and for students to quickly understand its physical principles, thereby cultivating students' scientific interests.

[0004] (1) When students were observing the wind flow around the air flow observation box, they accidentally knocked it over, causing the mosquito coil to fall over when it was not fixed firmly. When the fire source touched the bottom wall of the box, it would cause a fire.

[0005] (2) The smoke from mosquito coils is light and thin, and it is difficult for students to observe the existence and flow of smoke. In addition, the smoke is easily affected by external air currents. There is no sharp contrast between the phenomena before and after the candle is lit, which makes it difficult for students to have a deep understanding of the causes of wind. The phenomenon lacks contrast and inquiry. Utility Model Content

[0006] The utility model provides an air flow observation box to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An air flow observation box comprises an observation box body, the top of one side of the observation box body is fixedly connected to an air inlet pipe by means of a through hole, the other side of the observation box body is fixedly connected to an air outlet pipe by means of a through hole, the front and back sides of the observation box body are fixedly connected to horizontal observation glass windows, the upper end of the observation box body is fixedly connected to a supporting outer frame by means of a through groove, the inner bottom wall of the observation box body is fixedly connected to a supporting rod, both sides of the upper end of the supporting rod are respectively fixedly connected to an infrared lamp and a mosquito coil, and both sides of the lower end of the observation box body are fixedly connected to an adjustment adsorption device.

[0009] As a further improvement of the technical solution: the tops of both sides of the observation box are fixedly connected with support buckle blocks, and the upper end of the support outer frame is clamped with a top observation glass window.

[0010] As a further improvement of the technical solution: a fluorescent lamp is fixedly connected to the top of the inner wall of one side of the observation box, and a reinforcing top rod is fixedly connected to one side of the adjustment adsorption device.

[0011] As a further improvement of the technical solution: a connecting rod is fixedly connected to the top of one side of the observation box, and a blowing fan is fixedly installed on one side of the connecting rod.

[0012] As a further improvement of the technical solution: the adjustment adsorption device comprises a main body support block, and the bottom of one side of the main body support block is fixedly connected with an adjustment top block.

[0013] As a further improvement of the technical solution: the surface of the adjusting top block is threadedly connected with a rubber suction cup, one end of the rubber suction cup is threadedly connected with a hollow support block, and the surface of the rubber suction cup is fixedly connected with a support shift block.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) With the top block as the support, the support block is moved in the hollow support block to rotate the rubber suction cup, and the rubber suction cup is adsorbed on the tabletop to complete the support and stability of the observation box on the tabletop. When the student accidentally knocks the observation box over, the support of the mosquito coil inside the observation box remains stable, thereby preventing the fire source from touching the bottom wall of the carton and causing a fire;

[0016] (2) Infrared lamps are used instead of candles, so that the infrared lamps can emit heat to the inside of the observation box without generating smoke, and the smoke flow pattern of the mosquito coils will not be affected by the candle smoke, so that students can directly observe the smoke flow pattern before and after the heat is generated and compare it.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 This is a structural schematic diagram of an air flow observation box proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the disassembled structure of an air flow observation box proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of an observation box of an air flow observation box proposed by the utility model;

[0022] Figure 4 The utility model is a schematic diagram of the disassembled structure of the adjustment adsorption device of the air flow observation box.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Observation box; 2. Air inlet pipe; 3. Air outlet pipe; 4. Horizontal observation glass window; 5. Support outer frame; 6. Support rod; 7. Infrared lamp; 8. Mosquito coil; 9. Adjustment of adsorption device; 901. Main support block; 902. Adjustment of top block; 903. Rubber suction cup; 904. Hollow support block; 905. Support dial block; 10. Support buckle block; 11. Top observation glass window; 12. Fluorescent lamp; 13. Reinforcement top rod; 14. Connecting support rod; 15. Blowing fan. DETAILED DESCRIPTION

[0025] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0026] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] See also Figures 1 to 4 In the embodiment of the utility model, an air flow observation box includes an observation box body 1, the top of one side of the observation box body 1 is fixedly connected with an air inlet pipe 2 by opening a through hole, the other side of the observation box body 1 is fixedly connected with an air outlet pipe 3 by opening a through hole, the front and back sides of the observation box body 1 are fixedly connected with a horizontal observation glass window 4, the upper end of the observation box body 1 is fixedly connected with a support outer frame 5 by opening a through groove, the inner bottom wall of the observation box body 1 is fixedly connected with a support rod 6, and the two sides of the upper end of the support rod 6 are respectively fixedly connected with an infrared lamp 7 and a mosquito coil 8, and the two sides of the lower end of the observation box body 1 are fixedly connected with an adjustment adsorption device 9, with the adjustment top block 902 as the support , move the support block 905 in the hollow support block 904 to rotate the rubber suction cup 903, and let the rubber suction cup 903 be adsorbed on the tabletop, so that the observation box 1 can support the tabletop stably, so that when the student accidentally knocks over the observation box, the support of the mosquito coil 8 inside the observation box 1 can remain stable and not fall over, thereby avoiding the fire source from touching the bottom wall of the carton and causing a fire. The infrared lamp 7 is used instead of the candle, so that the infrared lamp 7 can emit heat to the inside of the observation box without generating smoke, and the smoke flow pattern of the mosquito coil 8 will not be affected by the candle smoke, so that the students can directly observe the comparison before and after the presence or absence of heat when observing the smoke flow pattern.

[0029] See also Figures 1-2 The tops of both sides of the observation box body 1 are fixedly connected with support buckle blocks 10, and the upper end of the support outer frame 5 is clamped with a top observation glass window 11. The support buckle blocks 10 can be supported by both hands, and the observation box can be moved and relocated.

[0030] See also Figures 2-3 A fluorescent lamp 12 is fixedly connected to the top of the inner wall of one side of the observation box 1, and a reinforcing top rod 13 is fixedly connected to one side of the adjustment adsorption device 9. The fluorescent lamp 12 can clearly illuminate the traces of smoke emitted by the mosquito coil 8, so that students can better compare the flow pattern of the smoke. The reinforcing top rod 13 can enhance the connection stability between the adjustment adsorption device 9 and the observation box 1.

[0031] See also Figures 1-2A connecting rod 14 is fixedly connected to the top of one side of the observation box 1, and a blowing fan 15 is fixedly installed on one side of the connecting rod 14. When there is no wind, the blowing fan 15 is controlled to simulate windy weather, so that students can continue to observe the wind direction flow experiment without being disturbed by the no wind.

[0032] See also Figure 4 The adjustment adsorption device 9 includes a main support block 901, and an adjustment top block 902 is fixedly connected to the bottom of one side of the main support block 901. The adjustment top block 902 serves as a support for the rubber suction cup 903, and is convenient for adjusting the up and down movement state of the rubber suction cup 903 like the hollow support block 904.

[0033] See also Figure 4 The surface of the adjusting top block 902 is threadedly connected with a rubber suction cup 903, one end of the rubber suction cup 903 is threadedly connected with a hollow support block 904, the surface of the rubber suction cup 903 is fixedly connected with a support dial block 905, the main support block 901 and the rubber suction cup 903 are also made of rubber material, and the material is set to: a copolymer of butadiene and acrylonitrile, generally containing 18%, 26% or 40% acrylonitrile, the higher the content, the better the oil resistance, heat resistance and wear resistance, and the operating temperature range is -55 to 130°C.

[0034] The working principle of the utility model is:

[0035] Start the infrared lamp 7 and light the mosquito coil 8, move the support block 905 to rotate in the hollow support block 904 and the adjustment top block 902, let the rubber suction cup 903 be adsorbed on the desktop to fix the observation box 1, then snap the top observation glass window 11 to the edge of the support outer frame 5, start the blowing fan 15 to blow air into the air inlet pipe 2, and observe the flow of mosquito coil 8 smoke when there is heat through the top observation glass window 11 and the horizontal observation glass window 4. At the same time, continue to observe the flow of mosquito coil 8 smoke when there is no heat when the infrared lamp 7 is turned off, and let the students make a summary and comparison.

[0036] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. An air flow observation box, comprising an observation box body (1), characterized in that: The top of one side of the observation box (1) is fixedly connected to an air inlet pipe (2) by opening a through hole, the other side of the observation box (1) is fixedly connected to an air outlet pipe (3) by opening a through hole, the front and back sides of the observation box (1) are fixedly connected to a transverse observation glass window (4), the upper end of the observation box (1) is fixedly connected to a supporting outer frame (5) by opening a through groove, the inner bottom wall of the observation box (1) is fixedly connected to a supporting rod (6), the two sides of the upper end of the supporting rod (6) are respectively fixedly connected to an infrared lamp (7) and a mosquito coil (8), and the two sides of the lower end of the observation box (1) are fixedly connected to an adjustment adsorption device (9).

2. An air flow observation box according to claim 1, characterized in that: The tops of both side surfaces of the observation box (1) are fixedly connected with support buckle blocks (10), and the upper end of the support outer frame (5) is clamped with a top observation glass window (11).

3. An air flow observation box according to claim 2, characterized in that: A fluorescent lamp (12) is fixedly connected to the top of the inner wall of one side of the observation box (1), and a reinforcing top rod (13) is fixedly connected to one side of the adjustment adsorption device (9).

4. An air flow observation box according to claim 2, characterized in that: A connecting rod (14) is fixedly connected to the top of one side of the observation box (1), and a blowing fan (15) is fixedly installed on one side of the connecting rod (14).

5. The air flow observation box according to claim 1, characterized in that: The adjustable adsorption device (9) comprises a main body supporting block (901), and an adjustable top block (902) is fixedly connected to the bottom of one side of the main body supporting block (901).

6. An air flow observation box according to claim 5, characterized in that: The surface of the adjusting top block (902) is threadedly connected to a rubber suction cup (903), one end of the rubber suction cup (903) is threadedly connected to a hollow support block (904), and the surface of the rubber suction cup (903) is fixedly connected to a support shifting block (905).

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