Icing phenomenon teaching aid

Abstract

The utility model discloses an icing phenomenon teaching aid, which can regulate and control the temperature condition of liquid and display visual and real-time temperature data to students, so that the students can observe with naked eyes and obtain knowledge points of the icing phenomenon in combination with the data, and can fully understand the liquid level condition of icing and the volume change degree of the liquid. And in addition, after the experiment is finished, the tools can be conveniently stored. According to the technical scheme, the cup is characterized by comprising a cup body, a test tube, at least two temperature sensors, a feedback assembly and a temperature control device, the cup body and the test tube can be filled with liquid, the test tube is detachably connected into the cup body and can be vertically suspended in the liquid in the cup body, the temperature sensors are arranged in the cup body and the test tube, and the feedback assembly is arranged in the cup body. The feedback assembly comprises a display screen and a control module, the control module is integrated in the display screen, and the temperature sensor is connected with the control module through a circuit or a signal transmission module.

Description

Technical Field

[0001] The utility model relates to the field of teaching, in particular to a teaching tool for the icing phenomenon. Background Technique

[0002] In the teaching work of primary school textbooks of the Education Science Edition, the courses related to water icing generally combine real life or simple experiments, which helps students quickly understand knowledge. However, the icing phenomenon of water in real life is difficult for students to directly observe. In some classroom experiments, only the test tube filled with water is inserted into the ice cubes for simulation. The actual liquid may not be completely solidified, or the temperature of the test tube cannot be controlled, resulting in poor actual teaching effects. Regarding the specific knowledge points of the icing phenomenon, students can only understand the conceptual knowledge.

[0003] Therefore, a teaching tool that can conduct effective icing experiments and is convenient for students to observe and specifically understand is needed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a teaching tool for the icing phenomenon, which can regulate the temperature condition of the liquid, display intuitive and real-time temperature data to students. Students can observe with the naked eye and combine the data to obtain the knowledge points of the icing phenomenon, and can fully understand the liquid level situation of the icing and the degree of volume change of the liquid, expanding the thinking of students. In addition, it is convenient to store the tool after the experiment.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A teaching tool for the icing phenomenon, including a cup body, a test tube, a temperature sensor and a feedback component. The cup body and the test tube can be filled with liquid. The test tube is detachably connected to the cup body and can be vertically suspended in the liquid of the cup body. There are at least two temperature sensors, and the temperature sensors are arranged in the cup body and the test tube. The feedback component includes a display screen and a control module. The control module is integrally arranged in the display screen, and the temperature sensor is connected to the control module through a circuit or a signal transmission module. It also includes a temperature control device for adjusting the temperature of the liquid inside the cup body.

[0007] Compared with the prior art, the teaching tool for the icing phenomenon adopting the above technical solutions has the following beneficial effects:

[0008] The teaching aid for the icing phenomenon adopting the utility model realizes the temporary docking of a test tube and a cup body, and uses a temperature control device to change the temperature of the liquid in the cup body. While gradually cooling down, since the test tube is located in the liquid of the cup body, the liquid in the test tube is synchronously reduced until the water in the test tube is reduced to the freezing point and gradually converted from a liquid to a solid. There is no need to pre-cool or make ice for the liquid in the cup body, and the operation is convenient and efficient. Moreover, the whole process of the experiment can be demonstrated to students. At the same time, the temperature data of the cup body and the test tube are synchronized to the display screen by using a temperature sensor. Students can improve their interactivity and enthusiasm through the data feedback on the display screen and visual observation, which is convenient for students to quickly understand the corresponding knowledge points.

[0009] Preferably, the temperature control device includes a housing, a heat conduction patch, a refrigeration patch, a control button and a temperature control unit. The housing is provided with a cup groove for the cup body to be placed in. The temperature control unit is integrally arranged in the housing. The control button is arranged above the housing. The heat conduction patch and the refrigeration patch are evenly and spacedly distributed at the bottom and side walls of the cup groove. By using the temperature adjustment of the temperature control device, the temperature conduction effect of the patch, and the wrapping effect of the side wall of the cup groove on the cup body part, the purpose of regulating the liquid in the cup body is realized. Moreover, through the heating operation, the experiment of ice converting into water can be realized, which expands the thinking of students and is convenient for quick thawing and pouring the liquid for subsequent storage operation of the teaching aid.

[0010] Preferably, the feedback component further includes a recording button and a recording module. The recording module is integrally arranged in the display screen, and the recording button is arranged on one side of the display screen. The display screen is arranged on the side wall of the temperature control device, and the control module is connected to the temperature control device through an electric circuit. After guiding students to use the teaching aid, students can record the node data of the freezing point and the node data of thawing, so as to facilitate subsequent teachers to view the experimental results. According to the recorded data, it can be determined whether students master the relevant knowledge points, so as to carry out targeted guiding teaching.

[0011] Preferably, both the cup body and the test tube are transparently arranged. By using the light transmission characteristics of the transparent structure, it is convenient for students to visually understand the whole process of icing through the naked eye, so as to further improve the interactivity and enthusiasm of students.

[0012] Preferably, it further includes a cover body. The cover body is fixedly clamped with the cup body. The test tube is provided with a corresponding sealing cover. The sealing cover can seal the test tube, and the sealing cover is connected and fixed in cooperation with the cover body. While the cover body and the cup body are docked, the sealing cover can simultaneously realize the sealing of the test tube and the docking of the test tube and the cover body, so as to realize the purpose of vertically suspending the test tube. Moreover, through the sealing of the cup body and the test tube, the influence of the external environmental temperature on the internal liquid temperature is reduced.

[0013] Preferably, a fixing frame is provided on one side of the cover facing the test tube, and the fixing frame adopts a special-shaped structure. A slot adapted to the fixing frame is provided on the cover body. When the fixing frame is inserted and docked, the special-shaped structure is used to limit the rotation state of the test tube, avoiding the influence of the force on the test tube during the process on the freezing progress.

[0014] Preferably, an extension frame with an arc-shaped structure is provided on one side of the cover body facing the cup body, and the extension frame does not contact the outer wall of the test tube. The extension frame is transparent and has multiple label slots. Different color label strips can be detachably connected to the label slots. By inserting the label strip into the label slot corresponding to the liquid level before the experiment, it is convenient for students to record and understand the liquid level situation before freezing and the liquid level situation of the subsequent ice cubes; and by using the extension frame in a special position, the extension frame is prevented from blocking the outer wall of the test tube, so that the test tube is still in a state of being wrapped by the liquid in the cup body, ensuring the smooth progress of the freezing phenomenon.

[0015] Preferably, a limiting component is further provided in the cup slot. The limiting component includes a clamping piece and a return spring. The clamping piece is connected to the side wall of the cup slot through the return spring, and an arc-shaped part or a slope is provided on the upper side of the clamping piece. By using the telescopic characteristic of the return spring and the guiding function of the arc-shaped part, students can directly press down and insert the cup body, which is convenient and simple to operate, and the connection state is stable and firm, saving valuable time for teaching and experiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the teaching tool for the freezing phenomenon of the present invention.

[0017] Figure 2 It is a schematic structural diagram of the feedback component and the temperature control device in the embodiment.

[0018] Figure 3 It is a schematic cross-sectional structure diagram of the cup slot in the embodiment.

[0019] Figure 4 It is a schematic structural diagram of the test tube and the extension frame in the embodiment.

[0020] Figure 5 It is a schematic cross-sectional structure diagram of the cover body, the cover and the test tube in the embodiment.

[0021] Reference numerals: 1, cup body; 2, test tube; 3, temperature sensor; 4, display screen; 5, temperature control device; 50, housing; 51, heat conduction patch; 52, refrigeration patch; 53, control button; 54, cup slot; 6, record button; 7, cover body; 70, slot; 8, cover; 80, fixing frame; 81, extension frame; 82, label slot; 9, limiting component; 90, clamping piece; 91, return spring; 92, arc-shaped part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following further describes the present utility model in conjunction with the accompanying drawings.

[0023] As Figures 1 to 5 shown in the teaching apparatus for the icing phenomenon, which includes a cup body 1, a test tube 2, a temperature sensor 3, and a feedback component.

[0024] Both the cup body 1 and the test tube 2 can be filled with liquid. The test tube 2 is detachably connected to the cup body 1, and the test tube 2 can be vertically suspended in the liquid of the cup body 1. There are at least two temperature sensors 3, and the temperature sensors 3 are arranged in the cup body 1 and the test tube 2.

[0025] For the convenience of students to observe in real time, both the cup body 1 and the test tube 2 are made of transparent materials. Among them, the connection method between the test tube 2 and the cup body 1 can be directly clamped and fixed by a certain bracket, or can be connected by a special fixing structure at the cup mouth.

[0026] Considering the influencing factors of the ambient temperature during the experiment, in this embodiment, a fixing structure at the cup mouth is adopted, and it also includes a cover body 7. The cover body 7 is clamped and fixed to the cup body 1. A corresponding sealing cover 8 is provided on the test tube 2. The sealing cover 8 can seal the test tube 2, and the sealing cover 8 is connected and fixed in cooperation with the cover body 7. In this embodiment, after the sealing cover 8 is clamped and fixed to the test tube 2, the sealing cover 8 can be clamped and fixed to the cover body 7.

[0027] To achieve the stable placement of the test tube 2 and avoid the change of the liquid level due to the inclination of the test tube 2, a fixing frame 80 is provided on the side of the sealing cover 8 facing the test tube 2, and the fixing frame 80 adopts a special-shaped structure. A slot 70 adapted to the fixing frame 80 is provided on the cover body 7. Among them, to increase the fixing effect, the fixing frame 80 can be made of rubber or silica gel.

[0028] And to facilitate students to record the liquid level before and after icing, and to avoid affecting the contact between the low-temperature liquid in the cup body 1 and the test tube 2, an extension frame 81 with an arc-shaped structure is provided on the side of the cover body 7 facing the cup body 1. The extension frame 81 does not contact the outer wall of the test tube 2. The extension frame 81 is made of transparent material. The extension frame 81 has a plurality of label slots 82. Different color label strips can be detachably connected to the label slots 82, and students can insert the label strips from one side of the label slots 82.

[0029] The feedback component includes a display screen 4 and a control module. The control module is integrally arranged in the display screen 4, and the temperature sensor 3 is connected to the control module through a circuit or a signal transmission module. It also includes a temperature control device 5 for adjusting the temperature of the liquid inside the cup body 1. Among them, the signal transmission module includes, but is not limited to, Bluetooth, WIFI, and radio frequency modules.

[0030] The temperature control device 5 includes a housing 50, a heat conducting patch 51, a refrigeration patch 52, a control button 53 and a temperature control unit. The housing 50 is provided with a cup slot 54 for the cup body 1 to be placed in. The temperature control unit is integrally arranged in the housing 50. The control button 53 is arranged above the housing 50. The heat conducting patch 51 and the refrigeration patch 52 are evenly and spacedly distributed at the bottom and side walls of the cup slot 54. In this embodiment, both the display screen 4 and the temperature control device 5 can be connected to an external power supply.

[0031] In addition, for the convenience of subsequent teachers to view the experimental results of students and for students to conduct group discussions, the feedback component further includes a recording button 6 and a recording module. The recording module is integrally arranged in the display screen 4, and the recording button 6 is arranged on one side of the display screen 4. The display screen 4 is arranged on the side wall of the temperature control device 5, and the control module is connected to the temperature control device 5 through a circuit, that is, the usage data of the temperature control device 5 can be synchronized to the recording module and displayed through the display screen 4.

[0032] And to reinforce the connection state between the cup body 1 and the housing 50, a limiting component 9 is further arranged in the cup slot 54. The limiting component 9 includes a clamping piece 90 and a return spring 91. The clamping piece 90 is connected to the side wall of the cup slot 54 through the return spring 91, and an arc part 92 or a slope is arranged on the upper side of the clamping piece 90.

[0033] The following is the usage method of this embodiment:

[0034] First, inject liquids into the cup body 1 and the test tube 2 respectively, seal the test tube 2 through the sealing cover 8, and then insert the fixing frame 80 of the sealing cover 8 into the slot 70 of the cover body 7 to realize the connection of the test tube 2, the sealing cover 8 and the cover body 7.

[0035] Then, insert the label strip into the label slot 82 corresponding to the current liquid level of the test tube 2, and insert the cup body 1 into the cup slot 54 of the housing 50. Due to the guiding action of the arc part 92 on the upper side of the clamping piece 90, the cup body 1 can be smoothly pressed down into the cup slot 54, and the return spring 91 pushes the clamping piece 90 after contraction, so that the clamping piece 90 closely fits the outer wall of the cup body 1.

[0036] After that, snap-fix the cover body 7 and the cup body 1 so that the test tube 2 is vertically suspended in the liquid of the cup body 1. Start the power supplies of the display screen 4 and the temperature control device 5 and start. Perform a cooling operation through the control button 53 according to the requirements of the group experiment. The refrigeration patch 52 gradually reduces the temperature of the liquid in the cup body 1, and the liquid in the test tube 2 will be cooled synchronously until it is below 0°C. At this time, students can observe the liquid change situation in the test tube 2 in real time. The temperature sensor 3 synchronizes the temperature conditions in the cup body 1 and the test tube 2 to the display screen 4. The control module can draw a temperature change curve and display it on the display screen 4. Combining the data fed back by the display screen 4, students can gradually understand the changes of water freezing, and input the data of the change nodes into the recording module through the recording button 6.

[0037] Meanwhile, the teacher can patrol to check the situation of each experiment and the feedback data of the display screen 4, and correct the students who operate wrongly in time. The teacher can also perform a heating operation through the control button 53, convert the electric energy into heat energy, and conduct the heat to the ice cubes in the cup body 1 and the test tube 2 through the heat conduction patch 51, so as to realize the experiment of converting ice into water, which is convenient for expanding the thinking of students, quickly thawing, pouring the liquid, and facilitating the storage of this teaching appliance.

[0038] The above is the preferred implementation manner of the present utility model. For those of ordinary skill in the art, without departing from the principle of the present utility model, several variations and improvements can still be made, and these should also be regarded as the protection scope of the present utility model.

Claims

1. A teaching tool for the phenomenon of icing, characterized in that: The invention comprises a cup body (1), a test tube (2), a temperature sensor (3) and a feedback component, wherein the cup body (1) (1) (1) and the test tube (2) can be filled with liquid, the test tube (2) can be detachably connected to the cup body (1), and the test tube (2) can be vertically suspended in the liquid in the cup body (1), at least two temperature sensors (3) are provided, and the temperature sensors (3) are arranged in the cup body (1) and the test tube (2), the feedback component comprises a display screen (4) and a control module, the control module is integrated in the display screen (4), and the temperature sensor (3) is connected to the control module via a circuit or a signal transmission module, and further comprises a temperature control device (5) for adjusting the temperature of the liquid inside the cup body (1).

2. The teaching tool for the icing phenomenon according to claim 1, characterized in that: The temperature control device (5) comprises a shell (50), a heat conductive patch (51), a cooling patch (52), a control button (53) and a temperature control unit. The shell (50) is provided with a cup groove (54) for the cup body (1) to be placed therein. The temperature control unit is integrated in the shell (50). The control button (53) is arranged above the shell (50). The heat conductive patch (51) and the cooling patch (52) are evenly spaced and distributed at the bottom and side walls of the cup groove (54).

3. The teaching tool for the icing phenomenon according to claim 2, characterized in that: The feedback component further comprises a recording button (6) and a recording module, the recording module being integrated in the display screen (4), and the recording button (6) being arranged on one side of the display screen (4), the display screen (4) being arranged on a side wall of the temperature control device (5), and the control module being connected to the temperature control device (5) via a circuit.

4. The teaching tool for the icing phenomenon according to claim 1, characterized in that: The cup body (1) and the test tube (2) are both transparent.

5. The teaching tool for the icing phenomenon according to claim 1, characterized in that: It also includes a cover body (7), the cover body (7) and the cup body (1) are snap-fitted and fixed, a corresponding sealing cover (8) is provided on the test tube (2), the sealing cover (8) can seal the test tube (2), and the sealing cover (8) and the cover body (7) are matched, connected and fixed.

6. The teaching tool for the icing phenomenon according to claim 5, characterized in that: A fixing frame (80) is provided on the side of the sealing cover (8) facing the test tube (2), and the fixing frame (80) adopts a special-shaped structure. A slot (70) adapted to the fixing frame (80) is provided on the cover body (7).

7. The teaching tool for the icing phenomenon according to claim 5, characterized in that: An arc-shaped extension frame (81) is provided on a side of the cover body (7) facing the cup body (1), and the extension frame (81) does not contact the outer wall of the test tube (2). The extension frame (81) is transparent and has a plurality of label slots (82). The label slots (82) are detachably connected with label strips of different colors.

8. The teaching tool for the icing phenomenon according to claim 3, characterized in that: A limiting assembly (9) is also provided in the cup groove (54), the limiting assembly (9) comprising a clamping piece (90) and a return spring (91), the clamping piece (90) being connected to the side wall of the cup groove (54) via the return spring (91), and an arc-shaped portion (92) or a slope is provided on the upper side of the clamping piece (90).

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