Object conductive teaching experiment device

Abstract

The utility model discloses a kind of object conductive teaching experimental devices, it relates to the technical field of conductive teaching experiment, the object conductive teaching experimental device, including bottom plate, the upper side surface of bottom plate is fixedly connected with mounting plate, the upper side surface of mounting plate is fixedly connected with connecting column, the upper side surface of connecting column is equipped with the insertion hole, the upper side surface of bottom plate is fixedly connected with two mounting frames, two the mounting frame between fixedly connected with two support plates, the upper side surface of upper side support plate is equipped with the through slot extending to its lower side surface, the inside of through slot is provided with container, the upper side surface of support plate is fixedly connected with fixed ring, can be replaced by the setting of closed plate and annular magnet, the medium of quick measurement is changed, simultaneously using the cooperation of two groups of mounting frames and support plate, multiple experimental media can be supported and fixed, it is convenient to carry out contrast test to multiple media.

Description

Technical Field

[0001] This utility model relates to the field of electrical conductivity teaching experiment technology, and in particular to a device for teaching electrical conductivity of objects. Background Technology

[0002] In middle school chemistry experiments exploring the conductivity of substances, dilute hydrochloric acid, dilute sulfuric acid, sodium hydroxide solution, calcium hydroxide solution, distilled water, and ethanol are usually selected as experimental subjects. Before the experiment, the upper end of a copper rod is connected to one terminal of a voltage regulator transformer via a wire. Then, the upper end of another copper rod is connected to one terminal of a lamp. Finally, the other terminal of the lamp is connected to the other terminal of the voltage regulator transformer via a wire. During the experiment, the two copper rods are placed side by side at a certain distance in a beaker containing the experimental subjects. The power switch of the voltage regulator transformer is turned on to conduct the conductivity experiment.

[0003] In current experiments on conductivity of different materials, copper rods are simply inserted directly into storage containers and secured with cable clamps. This method is cumbersome and lacks stability. Furthermore, reconnection is required when changing experimental media, which presents certain shortcomings. Therefore, we propose a teaching experimental device for conducting electricity of objects. Utility Model Content

[0004] The purpose of this invention is to provide a teaching experiment device for electrical conductivity of objects, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a teaching experiment device for electrical conductivity of objects, comprising a base plate, an mounting plate fixedly connected to the upper surface of the base plate, a connecting column fixedly connected to the upper surface of the mounting plate, an insertion hole formed on the upper surface of the connecting column, two mounting brackets fixedly connected to the upper surface of the base plate, two support plates fixedly connected between the two mounting brackets, a through groove extending to its lower surface formed on the upper surface of the upper support plate, a container disposed inside the through groove, a fixing ring fixedly connected to the upper surface of the support plate, a ring magnet disposed on the upper surface of the fixing ring, a closing plate disposed on the fixing ring, and a connecting component disposed on the closing plate.

[0006] Preferably, the connecting assembly includes a copper rod, which is fixedly connected to the lower surface of the sealing plate. The lower end of the copper rod extends into the interior of the container. The lower surface of the sealing plate is also provided with an annular magnet, and the surfaces of the two annular magnets that are close to each other are of opposite orientation.

[0007] Preferably, the sealing plate is elliptical, and a cable is fixedly connected to the upper surface of the sealing plate, the cable being connected to a copper rod.

[0008] Preferably, a connecting cap is fixedly connected to the end of the cable, the connecting cap is threaded onto the outer surface of the connecting post, and a plug rod is fixedly connected to the lower surface of the connecting cap.

[0009] Preferably, the plug rod is inserted into the plug hole, a voltage regulating transformer is fixedly connected to the lower surface of the base plate, and the connecting post is connected to the terminal of the voltage regulating transformer.

[0010] Preferably, a sponge pad is fixedly connected to the base plate, and the sponge pad has a placement groove.

[0011] Preferably, the placement slot is also provided with a container inside, a cover plate is rotatably connected to the base plate, a storage slot is opened on the upper surface of the base plate, and an LED strip screen is rotatably connected inside the storage slot.

[0012] Preferably, the LED strip screen is provided with a cloth strip, the upper surface of the base plate is rotatably connected with a protective cover, the back of the LED strip screen is fixedly connected with a protrusion, and the LED strip screen is electrically connected to a voltage regulating transformer.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This conductive teaching experiment device can quickly change the measured medium by setting up a closed plate and a ring magnet. At the same time, by using two sets of mounting brackets and support plates, it can support and fix multiple sets of experimental media, which is convenient for comparative experiments on multiple sets of media.

[0014] 2. This conductive teaching experiment device can not only store multiple containers using the placement slots on the sponge pad and the cover plate, but also display the experimental structure to the students below in real time using the LED strip screen. The protective cover not only protects the LED strip screen when it is not in use, but also supports it when it is in use. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of a teaching experiment device for electrical conductivity of objects according to this utility model; Figure 2 This is a schematic diagram of the connecting column of this utility model; Figure 3 This is a schematic diagram of the LED strip screen of this utility model; Figure 4 This is a schematic diagram of the ring magnet of this utility model.

[0016] Reference numerals: 1. Base plate; 2. Mounting plate; 3. Connecting post; 4. Insertion hole; 5. Mounting bracket; 6. Support plate; 7. Through groove; 8. Container; 9. Fixing ring; 10. Ring magnet; 11. Enclosure plate; 12. Copper rod; 13. Cable; 14. Connecting cover; 15. Insertion rod; 16. Voltage regulating transformer; 17. Sponge pad; 18. Placement slot; 19. Cover plate; 20. Storage slot; 21. LED strip screen; 22. Fabric tape; 23. Protective cover; 24. Protrusion. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a teaching experiment device for electrical conductivity of an object, including a base plate 1, a mounting plate 2 fixedly connected to the upper surface of the base plate 1, a connecting post 3 fixedly connected to the upper surface of the mounting plate 2, an insertion hole 4 on the upper surface of the connecting post 3, two mounting brackets 5 fixedly connected to the upper surface of the base plate 1, and two support plates 6 fixedly connected between the two mounting brackets 5. The support plates 6 are used to fix and restrict the test medium container 8. The upper surface of the upper support plate 6 has a through groove 7 extending to its lower surface. The container 8 is installed inside. A fixing ring 9 is fixedly connected to the upper surface of the support plate 6. A ring magnet 10 is installed on the upper surface of the fixing ring 9. The ring magnet 10 is used to quickly fix the sealing plate 11. The sealing plate 11 is installed on the fixing ring 9. The sealing plate 11 is equipped with a connecting component. The medium to be measured can be quickly changed through the sealing plate 11 and the ring magnet 10. At the same time, the cooperation of two sets of mounting brackets 5 and support plate 6 can support and fix multiple sets of experimental media, which is convenient for comparison tests of multiple sets of media.

[0019] Furthermore, the connecting assembly includes a copper rod 12, which is fixedly connected to the lower surface of the sealing plate 11. The lower end of the copper rod 12 extends into the interior of the container 8. A ring magnet 10 is also provided on the lower surface of the sealing plate 11. The surfaces of the two ring magnets 10 that are close to each other are of opposite shapes. The sealing plate 11 is elliptical in shape. A cable 13 is fixedly connected to the upper surface of the sealing plate 11. The cable 13 is connected to the copper rod 12, and a connecting cap 14 is fixedly connected to the end of the cable 13. The cable 13 is connected to the copper rod 12 via the connecting cap 14. 3. Complete the electrical connection. The connecting cover 14 is threaded onto the outer surface of the connecting post 3. A plug-in rod 15 is fixedly connected to the lower surface of the connecting cover 14. The plug-in rod 15 is inserted into the plug-in hole 4. A voltage regulating transformer 16 is fixedly connected to the lower surface of the base plate 1. The copper rod 12 is connected to the voltage regulating transformer 16 through the plug-in rod 15. The connecting post 3 is connected to the terminal of the voltage regulating transformer 16. A sponge pad 17 is fixedly connected to the base plate 1. A placement groove 18 is opened on the sponge pad 17. The interior of the placement groove 18 is also... A container 8 is provided, and a cover plate 19 is rotatably connected to the base plate 1 to protect the container 8. A storage groove 20 is provided on the upper surface of the base plate 1, and an LED strip screen 21 is rotatably connected inside the storage groove 20 to display experimental data in real time. A cloth strip 22 is provided on the LED strip screen 21, and a protective cover 23 is rotatably connected to the upper surface of the base plate 1 to protect the LED strip screen 21. A protrusion 24 is fixedly connected to the back of the LED strip screen 21, and the LED strip screen 21 is supported by the cooperation of the protective cover 23 and the protrusion 24. The LED strip screen 21 is electrically connected to the voltage regulating transformer 16. It can not only store multiple sets of containers 8 with the help of the placement groove 18 on the sponge pad 17 and the cover plate 19, but also display the experimental structure to the students below in real time with the help of the LED strip screen 21. The protective cover 23 can not only protect the LED strip screen 21 when it is not in use, but also support it when the LED strip screen 21 is in use.

[0020] Among them, the LED strip screen 21 is a smart protocol type strip screen, which can directly send voltage strings through serial port protocol. When working, it can use Arduino Uno to perform analog-to-digital conversion and protocol conversion, and use the LED strip screen 21 to additionally display the values ​​on the voltage regulating transformer 16.

[0021] Working principle: When conducting conductivity experiments on different objects, the container 8 inside the placement slot 18 can be taken out by rotating the cover plate 19, and then the container 8 is inserted into the through slot 7. Then, by taking the sealing plate 11, the copper rod 12 on the sealing plate 11 is inserted into the container 8. As the sealing plate 11 gradually approaches the fixing ring 9, the sealing plate 11 is fixed by two annular magnets 10 with opposite polarities on adjacent surfaces. Then, the connecting cover 14 is threaded onto the connecting post 3, so that the copper rod 12 is connected to the voltage regulating transformer 16 through the plug rod 15 and the plug hole 4. At this time, by rotating the protective cover 23, the LED strip screen 21 is rotated to make it vertical, and the side of the protective cover 23 abuts against the back of the LED strip screen 21 and the protrusion 24 to support the LED strip screen 21. At this time, the conductivity experiment can be completed with the help of the voltage regulating transformer 16. When changing the experimental medium, simply lift the sealing plate 11 and insert the copper rod 12 into the medium to be tested.

[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A teaching experiment device for electrical conductivity of objects, comprising a base plate (1), characterized in that: A mounting plate (2) is fixedly connected to the upper surface of the base plate (1). A connecting column (3) is fixedly connected to the upper surface of the mounting plate (2). A plug hole (4) is opened on the upper surface of the connecting column (3). Two mounting brackets (5) are fixedly connected to the upper surface of the base plate (1). Two support plates (6) are fixedly connected between the two mounting brackets (5). A through groove (7) extending to its lower surface is opened on the upper surface of the upper support plate (6). A container (8) is provided inside the through groove (7). A fixing ring (9) is fixedly connected to the upper surface of the support plate (6). A ring magnet (10) is provided on the upper surface of the fixing ring (9). A closing plate (11) is provided on the fixing ring (9). A connecting component is provided on the closing plate (11).

2. The experimental device for teaching electrical conductivity of an object according to claim 1, characterized in that: The connecting assembly includes a copper rod (12), which is fixedly connected to the lower surface of the sealing plate (11). The lower end of the copper rod (12) extends into the interior of the container (8). The lower surface of the sealing plate (11) is also provided with annular magnets (10), and the two annular magnets (10) are arranged with opposite orientations on their adjacent surfaces.

3. The experimental device for teaching electrical conductivity of objects according to claim 2, characterized in that: The sealing plate (11) is elliptical, and a cable (13) is fixedly connected to the upper surface of the sealing plate (11). The cable (13) is connected to the copper rod (12).

4. The experimental device for teaching electrical conductivity of an object according to claim 3, characterized in that: The end of the cable (13) is fixedly connected to a connecting cover (14), which is threaded onto the outer surface of the connecting post (3), and a plug rod (15) is fixedly connected to the lower surface of the connecting cover (14).

5. The experimental device for teaching electrical conductivity of an object according to claim 4, characterized in that: The plug rod (15) is inserted into the plug hole (4), and a voltage regulating transformer (16) is fixedly connected to the lower surface of the base plate (1). The connecting column (3) is connected to the terminal of the voltage regulating transformer (16).

6. The experimental device for teaching electrical conductivity of an object according to claim 5, characterized in that: A sponge pad (17) is fixedly connected to the base plate (1), and a placement groove (18) is provided on the sponge pad (17).

7. The experimental device for teaching electrical conductivity of an object according to claim 6, characterized in that: The placement slot (18) is also equipped with a container (8), and a cover plate (19) is rotatably connected to the bottom plate (1). A storage slot (20) is opened on the upper surface of the bottom plate (1), and an LED strip screen (21) is rotatably connected inside the storage slot (20).

8. The experimental device for teaching electrical conductivity of objects according to claim 7, characterized in that: The LED strip screen (21) is provided with a cloth strip (22), the upper surface of the base plate (1) is rotatably connected with a protective cover (23), the back of the LED strip screen (21) is fixedly connected with a protrusion (24), and the LED strip screen (21) is electrically connected to the voltage regulating transformer (16).

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