Demonstration device for electrochemical teaching

Abstract

The utility model provides a demonstration device for electrochemistry teaching, belongs to the technical field of electrochemistry teaching, and aims to solve the problems that a metal sheet or an electric shock rod is easy to directly fall into a solution when a conventional demonstration device for electrochemistry teaching vibrates or inclines in an experiment process, and lines are easy to wind together in a connection process. Comprising a demonstration base. The hidden storage box is connected to the interior of the demonstration base in a sliding manner; the storage battery is fixedly mounted on the front side of the demonstration base; the electric wire storage device is fixedly mounted on the front side of the demonstration base; the electrolytic tank is mounted at the upper part of the demonstration base; the reagent storage assembly is arranged in the demonstration base; the clamping assembly is arranged on the front side of the demonstration base; and the electric wire storage assembly is arranged in the electric wire storage device. The utility model has the advantages of convenient storage, quick fixation, convenient installation and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrochemical teaching, and more specifically, particularly relates to a demonstration device for electrochemical teaching. Background Art

[0002] In the process of learning electrochemistry, using electrochemical teaching demonstration devices to conduct chemical experiments is conducive to students' understanding of chemical knowledge, improving students' interest, cultivating students' hands-on ability, enabling students to learn knowledge more intuitively, and the ability to transform theory into practice. Most of the existing electrochemical teaching demonstration devices use batteries as power sources, which are connected to metal sheets or electrode rods through wires. The wires and metal sheets or electrode rods are placed in solutions to conduct experiments such as electrolysis, electroplating or conductivity, and the substances produced by the experiments are determined by direct observation or using methods such as pH test paper.

[0003] Existing application number CN202023116419.3 The utility model discloses a demonstration device for electrochemical teaching, including a shell, a battery, a power switch and a detection unit are installed in the shell, the power switch is electrically connected to the detection unit and the battery respectively, and a positive electrode column and a negative electrode column electrically connected to the detection unit are also installed at the bottom of the shell, and a slide groove extending to the negative electrode column is provided on the shell at the positive electrode column, and the positive electrode column is installed in the slide groove through a card block, and the card block can damp the movement in the slide groove, and the positive electrode column and the negative electrode column are also connected with conductors respectively. The utility model overcomes the shortcomings of the prior art. The device of the utility model can display the voltage and current values ​​when measuring the conductivity of the solution in real time, and can also be used for the demonstration of electrolytic cells and electroplating experiments, and is easy to carry and use.

[0004] Based on the above, in the existing electrochemistry teaching demonstration devices, metal sheets or electric rods are mostly placed directly into the solution during the experiment. When encountering vibration or tilt, the metal sheets or electric rods are easy to fall directly into the solution, which is inconvenient to take out, and the wires are easy to get tangled together during the connection process, which can easily cause safety problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a demonstration device for electrochemical teaching, so as to solve the problems that in the existing electrochemical demonstration devices, metal sheets or electric rods are mostly directly placed in the solution during the experiment, and when encountering vibration or tilt, the metal sheets or electric rods are easy to fall directly into the solution, which is inconvenient to take out, and the lines are easy to get tangled together during the connection process, which can easily cause safety accidents.

[0006] The purpose and effect of the electrochemical teaching demonstration device of the utility model are achieved by the following specific technical means:

[0007] A demonstration device for electrochemistry teaching, comprising a demonstration base;

[0008] A hidden storage box, wherein the hidden storage box is slidably connected inside the demonstration base;

[0009] A battery, wherein the battery is fixedly mounted on the front side of the demonstration base;

[0010] A wire receiver, the wire receiver is fixedly mounted on the front side of the demonstration base;

[0011] A clamping arm, the clamping arm being arranged at the front side of the demonstration base;

[0012] An electrolytic box, wherein the electrolytic box is installed on the upper part of the demonstration base;

[0013] A reagent storage component, wherein the reagent storage component is arranged inside the demonstration base;

[0014] A clamping assembly, wherein the clamping assembly is arranged at the front side of the demonstration base;

[0015] The wire storage assembly is arranged inside the wire storage device.

[0016] Furthermore, the reagent storage assembly includes:

[0017] A transmission motor, wherein the transmission motor is installed inside the demonstration base;

[0018] A transmission worm, the transmission worm is coaxially fixedly connected to the transmission motor;

[0019] A transmission turbine is rotatably connected inside the demonstration base.

[0020] Furthermore, the reagent storage assembly also includes:

[0021] A first threaded rod, the first threaded rod being coaxially fixedly connected to the transmission turbine;

[0022] The threaded transmission blocks have two groups in total, and the two groups of threaded transmission blocks are connected to the two ends of the first threaded rod through threads.

[0023] Furthermore, the clamping assembly includes:

[0024] An ammeter, which is fixedly mounted on the front side of the demonstration base;

[0025] A voltmeter is fixedly mounted on the front side of the demonstration base.

[0026] Furthermore, the clamping assembly also includes:

[0027] A fixing plate, the fixing plate being fixedly mounted on the front side of the demonstration base;

[0028] a second threaded rod, the second threaded rod being rotatably connected to the middle portion of the fixed plate;

[0029] Guide rods, the guide rods are fixedly mounted on both sides of the fixing plate;

[0030] A U-shaped sliding block, the U-shaped sliding block is connected to the outside of the second threaded rod by a thread, the U-shaped sliding block is slidably connected to the outside of the guide rod, and the U-shaped sliding block is hinged at the end of the clamping arm;

[0031] An anti-slip clamping block, wherein the anti-slip clamping block is slidably connected to the top end of the clamping arm;

[0032] A third threaded rod is connected to the interior of the anti-slip clamping block through threads.

[0033] Furthermore, the wire storage assembly includes:

[0034] A rotating rod, the rotating rod being rotatably connected to the inside of the wire storage;

[0035] A limit pawl, wherein the limit pawl is fixedly connected to the outside of the rotating rod;

[0036] A rotating shaft, the rotating shaft rotates inside the wire storage device;

[0037] A one-way ratchet is coaxially fixedly connected to the outer wall of the rotating shaft.

[0038] Furthermore, the wire storage assembly also includes:

[0039] An elastic coil spring, one end of which is fixedly connected to the outside of the rotating shaft, and the end of which is fixedly connected to the inside of the wire storage;

[0040] The winding shaft is coaxially fixedly connected to the outside of the rotating shaft, and the outside of the winding shaft is wound with electric wires.

[0041] Compared with the prior art, the utility model has the following beneficial effects:

[0042] First, the utility model has a reagent storage component, which controls the opening of the hidden storage box by controlling the opening of the transmission motor, thereby reducing the footprint of the device, facilitating the storage of teaching reagents, reducing the impact of light on the reagents, and extending the storage time of the reagents.

[0043] Secondly, the utility model has a clamping assembly, which is convenient for quickly fixing the metal plate or electrode rod, and the height position of the metal plate or electrode rod can be quickly adjusted, so that the metal plate or electrode rod can be easily detached from the electrolysis box at any time, which has the effect of quickly starting or interrupting the experiment, and reduces the risk of manual hand-held metal plates or electrode rods falling off. The current and voltage generated during the electrochemical experiment are observed by the ammeter and voltmeter, which more intuitively reflects the process of converting chemical energy into electrical energy.

[0044] The utility model has a wire storage component, which can quickly stretch the wires to the required length, facilitate the wires and metal plates or electrode rods to be fixed together, improve the installation efficiency of the test equipment, and can quickly store the wires to prevent the wires from being entangled with each other and causing circuit failures or safety accidents.

[0045] The utility model has the advantages of convenient storage, quick fixation, and convenient installation, which greatly improves the installation efficiency of the demonstration device, facilitates the storage of experimental reagents, effectively prevents the occurrence of entanglement or safety accidents caused by excessively long wires, and makes it easier to store experimental equipment after the demonstration device experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0047] Figure 2 It is a structural schematic diagram of a hidden storage box of the utility model.

[0048] Figure 3 It is a schematic diagram of the first threaded rod structure of the utility model.

[0049] Figure 4 It is a schematic diagram of the battery structure of the utility model.

[0050] Figure 5 The utility model is a schematic diagram of the structure of the wire storage device.

[0051] Figure 6 It is a schematic diagram of the winding shaft structure of the utility model.

[0052] Figure 7 It is a schematic diagram of the structure of the clamping arm of the utility model.

[0053] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0054] 1. Demonstration base; 2. Hidden storage box; 201. Threaded transmission block; 202. Transmission motor; 203. Transmission worm; 204. Transmission turbine; 205. First threaded rod; 3. Battery; 301. Ammeter; 302. Voltmeter; 4. Wire storage box; 401. Rotating shaft; 402. One-way ratchet; 403. Limiting pawl; 404. Rotating rod; 405. Elastic coil spring; 406. Winding shaft; 5. Clamping arm; 501. Fixed plate; 502. Second threaded rod; 503. Guide rod; 504. U-shaped sliding block; 505. Third threaded rod; 506. Anti-slip clamping block; 6. Electrolytic box. DETAILED DESCRIPTION

[0055] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0056] Embodiment 1:

[0057] As attached Figure 1 To Attachment Figure 7 As shown:

[0058] The utility model provides a demonstration device for electrochemistry teaching, comprising a demonstration base 1;

[0059] A hidden storage box 2, which is slidably connected inside the demonstration base 1;

[0060] A battery 3, the battery 3 is fixedly mounted on the front side of the demonstration base 1;

[0061] A wire storage device 4, which is fixedly mounted on the front side of the demonstration base 1;

[0062] A clamping arm 5, which is arranged at the front side of the demonstration base 1;

[0063] An electrolytic box 6, which is mounted on the upper part of the demonstration base 1;

[0064] A reagent storage component, which is arranged inside the demonstration base 1;

[0065] The clamping assembly is arranged on the front side of the demonstration base 1 .

[0066] The reagent storage components include:

[0067] A transmission motor 202, the transmission motor 202 is installed inside the demonstration base 1;

[0068] A transmission worm 203, the transmission worm 203 is coaxially fixedly connected with the transmission motor 202;

[0069] The transmission turbine 204 is rotatably connected to the inside of the demonstration base 1; the transmission motor 202 is powered on and rotates, the transmission motor 202 drives the transmission worm 203 to rotate, and the transmission worm 203 drives the transmission turbine 204 to rotate.

[0070] The reagent storage component also includes:

[0071] A first threaded rod 205, the first threaded rod 205 is coaxially fixedly connected to the transmission turbine 204;

[0072] There are two groups of threaded transmission blocks 201, and the two groups of threaded transmission blocks 201 are connected to the two ends of the first threaded rod 205 through threads; the function is that the transmission turbine 204 rotates to drive the first threaded rod 205 to rotate, and the first threaded rod 205 drives the threaded transmission blocks 201 at both ends to move inward or outward at the same time, and the threaded transmission blocks 201 drive the hidden storage box 2 to expand or shrink.

[0073] The clamping assembly includes:

[0074] An ammeter 301, which is fixedly mounted on the front side of the demonstration base 1;

[0075] The voltmeter 302 is fixedly mounted on the front side of the demonstration base 1; the battery 3, the ammeter 301 and the voltmeter 302 are connected in series through wires. When an electrochemical experiment is needed, the metal plate or electrode rod is connected by wires, and the metal plate or electrode rod is inserted into the electrolyte inside the electrolytic box 6. The ammeter 301 and the voltmeter 302 can more intuitively observe the current and voltage generated during the electrochemical experiment.

[0076] The clamping assembly also includes:

[0077] A fixing plate 501, the fixing plate 501 is fixedly mounted on the front side of the demonstration base 1;

[0078] A second threaded rod 502, the second threaded rod 502 is rotatably connected to the middle of the fixed plate 501;

[0079] Guide rods 503, which are fixedly mounted on both sides of the fixing plate 501;

[0080] A U-shaped sliding block 504, which is connected to the outside of the second threaded rod 502 by means of a thread, and the U-shaped sliding block 504 is slidably connected to the outside of the guide rod 503, and the U-shaped sliding block 504 is hinged to the end of the clamping arm 5;

[0081] An anti-slip clamping block 506, which is slidably connected to the top of the clamping arm 5;

[0082] The third threaded rod 505 is connected to the inside of the anti-slip clamping block 506 through a thread; the function is that when the second threaded rod 502 is turned, the second threaded rod 502 rotates and drives the U-shaped sliding block 504 to move vertically through the thread, and the guide rod 503 plays a supporting and guiding role when the U-shaped sliding block 504 moves, and the movement of the U-shaped sliding block 504 drives the clamping arm 5 to move, thereby playing a role in adjusting the position of the clamping arm 5; when the third threaded rod 505 is turned, the third threaded rod 505 drives the anti-slip clamping block 506 to move through the thread, thereby achieving a clamping effect.

[0083] The specific usage and function of this embodiment are as follows:

[0084] When it is necessary to take the reagents for teaching, the transmission motor 202 is powered on and rotates, the transmission motor 202 drives the transmission worm 203 to rotate, the transmission worm 203 drives the transmission turbine 204 to rotate, the rotation of the transmission turbine 204 drives the first threaded rod 205 to rotate, the first threaded rod 205 drives the threaded transmission blocks 201 at both ends to move outward at the same time, the threaded transmission blocks 201 drive the hidden storage box 2 to unfold, the hidden storage box 2 is convenient for classifying and storing the teaching reagents, and shrinking the hidden storage box 2 can effectively avoid the influence of light and moisture on the teaching reagents, so that the teaching reagents are stored in a cool and dry state, thereby extending the use time of the teaching reagents.

[0085] When an electrochemical experiment is needed, a metal plate or an electrode rod is placed inside the clamping arm 5, and the third threaded rod 505 is turned. The third threaded rod 505 drives the anti-skid clamping block 506 to move through the thread, and the anti-skid clamping block 506 has a clamping effect on the metal plate or electrode rod inside the clamping arm 5; the second threaded rod 502 is turned, and the second threaded rod 502 rotates and drives the U-shaped sliding block 504 to move vertically through the thread. The guide rod 503 plays a supporting and guiding role when the U-shaped sliding block 504 moves. The movement of the U-shaped sliding block 504 drives the clamping arm 5 to move, and the clamping arm 5 drives the metal plate or electrode rod to extend into the electrolyte inside the electrolytic box 6. The battery 3, the ammeter 301 and the voltmeter 302 are connected in series through wires. The metal plate or electrode rod is connected by wires. The ammeter 301 and the voltmeter 302 are more intuitive to observe the current and voltage generated during the electrochemical experiment.

[0086] Embodiment 2:

[0087] Based on the first embodiment, Figures 1 to 7 As shown, it also includes:

[0088] The wire storage assembly is arranged inside the wire storage device 4 .

[0089] The wire storage assembly includes:

[0090] A rotating rod 404, the rotating rod 404 is rotatably connected to the inside of the wire storage 4;

[0091] A limit pawl 403, the limit pawl 403 is fixedly connected to the outside of the rotating rod 404;

[0092] A rotating shaft 401, the rotating shaft 401 rotates inside the wire storage 4;

[0093] The one-way ratchet 402 is coaxially fixedly connected to the outer wall of the rotating shaft 401; its function is to move the end of the limit pawl 403, and the end of the limit pawl 403 drives the rotating rod 404 to swing, and the limit pawl 403 supports the one-way ratchet 402, so that the one-way ratchet 402 can only rotate in one direction.

[0094] Among them, the wire storage component also includes:

[0095] An elastic coil spring 405, one end of the elastic coil spring 405 is fixedly connected to the outside of the rotating shaft 401, and the end of the elastic coil spring 405 is fixedly connected to the inside of the wire storage 4;

[0096] The winding shaft 406 is coaxially fixedly connected to the outside of the rotating shaft 401, and an electric wire is wound on the outside of the winding shaft 406; the function is that when the winding shaft 406 is rotated, the winding shaft 406 drives the rotating shaft 401 to rotate, and the rotating shaft 401 drives the elastic coil spring 405 to rotate and shrink inward, and the winding shaft 406 is released, and the elastic coil spring 405 rotates and resets under the elastic action, and the elastic coil spring 405 drives the winding shaft 406 and the rotating shaft 401 to rotate and reset.

[0097] The specific usage and function of this embodiment are as follows:

[0098] When the wire needs to be extended, the wire is pulled, and the wire drives the winding shaft 406 to rotate, and the winding shaft 406 drives the rotating shaft 401 to rotate, and the rotating shaft 401 drives the elastic coil spring 405 to rotate and shrink inward, and the rotating shaft 401 drives the one-way ratchet 402 to rotate, and the limiting pawl 403 supports the one-way ratchet 402, so that the one-way ratchet 402 can only rotate in one direction, and the one-way ratchet 402 is coaxially fixedly connected to the rotating shaft 401 with the elastic coil spring 405, thereby realizing the limiting effect of the limiting pawl 403 on the elastic coil spring 405, so that the wire can only be extended by pulling.

[0099] When the wire is too long and needs to be retracted, the end of the limit pawl 403 is moved so that the limit pawl 403 cannot support the one-way ratchet 402, and the elastic coil spring 405 rotates and resets under the elastic action, and the elastic coil spring 405 drives the winding shaft 406 and the rotating shaft 401 to rotate and reset, and the winding shaft 406 drives the wire to retract, thereby achieving the effect of quickly storing the wire.

Claims

1. A demonstration device for electrochemical teaching, comprising a demonstration base (1); characterized in that: A hidden storage box (2), wherein the hidden storage box (2) is slidably connected to the inside of the demonstration base (1); a storage battery (3), wherein the storage battery (3) is fixedly mounted on the front side of the demonstration base (1); a wire storage box (4), wherein the wire storage box (4) is fixedly mounted on the front side of the demonstration base (1); a clamping arm (5), wherein the clamping arm (5) is arranged on the front side of the demonstration base (1); an electrolytic box (6), wherein the electrolytic box (6) is mounted on the upper part of the demonstration base (1); a reagent storage assembly, wherein the reagent storage assembly is arranged inside the demonstration base (1); a clamping assembly, wherein the clamping assembly is arranged on the front side of the demonstration base (1); and a wire storage assembly, wherein the wire storage assembly is arranged inside the wire storage box (4).

2. An electrochemical teaching demonstration device as claimed in claim 1, characterized in that: The reagent storage assembly comprises: a transmission motor (202), a transmission worm (203) and a transmission turbine (204); the transmission motor (202) is installed inside the demonstration base (1); the transmission worm (203) is coaxially fixedly connected to the transmission motor (202); and the transmission turbine (204) is rotatably connected inside the demonstration base (1).

3. An electrochemical teaching demonstration device as claimed in claim 2, characterized in that: The reagent storage assembly further comprises: a first threaded rod (205) and a threaded transmission block (201), wherein the first threaded rod (205) is coaxially fixedly connected to the transmission turbine (204); there are two groups of threaded transmission blocks (201), and the two groups of threaded transmission blocks (201) are connected to both ends of the first threaded rod (205) through threads.

4. An electrochemical teaching demonstration device as claimed in claim 1, characterized in that: The clamping assembly comprises: an ammeter (301) and a voltmeter (302); the ammeter (301) is fixedly mounted on the front side of the demonstration base (1); and the voltmeter (302) is fixedly mounted on the front side of the demonstration base (1).

5. An electrochemical teaching demonstration device as claimed in claim 4, characterized in that: The clamping assembly further comprises: a fixed plate (501), a second threaded rod (502), a guide rod (503), a U-shaped sliding block (504), an anti-slip clamping block (506) and a third threaded rod (505), wherein the fixed plate (501) is fixedly mounted on the front side of the demonstration base (1); the second threaded rod (502) is rotatably connected to the middle of the fixed plate (501); the guide rod (503) is fixedly mounted on both sides of the fixed plate (501); the U-shaped sliding block (504) is threadedly connected to the outside of the second threaded rod (502); the anti-slip clamping block (506) is slidably connected to the top of the clamping arm (5); and the third threaded rod (505) is threadedly connected to the inside of the anti-slip clamping block (506).

6. An electrochemical teaching demonstration device as claimed in claim 1, characterized in that: The wire storage assembly comprises: a rotating rod (404), a limiting pawl (403), a rotating shaft (401) and a one-way ratchet (402); the rotating rod (404) is rotatably connected inside the wire storage device (4); the limiting pawl (403) is fixedly connected to the outside of the rotating rod (404); the rotating shaft (401) is rotatable inside the wire storage device (4); and the one-way ratchet (402) is coaxially fixedly connected to the outer wall of the rotating shaft (401).

7. An electrochemical teaching demonstration device as claimed in claim 6, characterized in that: The wire storage assembly further comprises: an elastic coil spring (405) and a wire reel (406); one end of the elastic coil spring (405) is fixedly connected to the outside of the rotating shaft (401), and the end of the elastic coil spring (405) is fixedly connected to the inside of the wire storage device (4); the wire reel (406) is coaxially fixedly connected to the outside of the rotating shaft (401), and the outside of the wire reel (406) is wound with wires.

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