Practical training platform with protection function

Abstract

The utility model discloses a practical training platform with a protection function, and relates to the technical field of teaching equipment, the practical training platform comprises a working platform, a power-off protection device, a power-on switch and a control switch, the top of the working platform is fixedly provided with a supporting plate, the front side of the supporting plate is fixedly provided with a protective cover with an opening at the front end, and the front side of the protective cover is provided with a power-off protection device. Electrical components for practical training are arranged in the protective cover, and two moving plates are symmetrically and slidably mounted at an opening of the protective cover in the transverse direction; the power-off protection device comprises a driving mechanism, a power-off mechanism and two air cylinders, and the output ends of the two air cylinders are in transmission connection with the two movable plates correspondingly. According to the practical training platform with the protection function, through linkage cooperation of the protective cover, the moving plate and the power-off protection device, electrical apparatus elements for practical training can supply power only when the protective cover is in a closed state, the risk of electric shock of practical training personnel can be effectively reduced, and the phenomenon that when a line is short-circuited, the practical training personnel cannot be damaged can be avoided. And electric sparks, resistance explosion and the like are prevented from damaging training personnel.

Description

Technical Field

[0001] This utility model relates to the field of teaching equipment technology, specifically a training platform with protective functions. Background Technology

[0002] Electronic teaching training platforms are indispensable auxiliary equipment in electronic teaching. They are mainly used to provide students with a practical operation environment, helping them to master skills such as connecting, debugging, and troubleshooting electronic circuits through hands-on practice. In the current technology, electronic teaching training platforms have been widely used and have met the teaching needs to a certain extent, but some problems still exist. First, existing training platforms lack effective protective devices, and there is a risk of electric shock when trainees supply power to the connected circuits. Second, when a short circuit occurs in the circuit, it can easily cause dangerous situations such as electric sparks and resistor explosions, thus threatening the safety of trainees.

[0003] Therefore, it is necessary to propose a training platform with protective functions to solve the above problems. Utility Model Content

[0004] Technical problem to be solved: The purpose of this utility model is to provide a training platform with protective function to solve the problem mentioned in the background art that the existing training platforms lack effective protective devices, and there is a risk of electric shock when trainees supply power to the connected lines. Secondly, when a short circuit occurs in the line, it is easy to cause dangerous situations such as electric sparks and resistor explosions, thereby threatening the safety of trainees.

[0005] Technical Solution: To achieve the above objectives, this utility model provides the following technical solution: A training platform with protective function includes a workbench, a power failure protection device, a power switch, and a control switch. A support plate is fixedly installed on the top of the workbench, and a protective cover with a front opening is fixedly installed on the front side of the support plate. Electrical components for training are provided inside the protective cover. Two movable plates are symmetrically slidably installed at the opening of the protective cover. The power failure protection device includes a drive mechanism, a power failure mechanism, and two cylinders. The output ends of the two cylinders are respectively connected to the two movable plates and drive the two movable plates to move away from or towards each other. The power failure mechanism includes a second sealed can fixedly installed on the support plate. Insulating sleeves communicating with the interior of the second sealed can are fixedly installed at both ends. An axially slidable sleeve is installed inside the second sealed can. The second piston divides the second sealed container into left and right chambers. A through hole is axially formed on the second piston, and a conductive ring is fixedly fitted inside the through hole. Two conductive rods are axially spaced and slidably fitted inside the conductive ring. The ends of the two conductive rods, which are far apart from each other, are fixedly fitted inside insulating sleeves on adjacent sides. One conductive rod is electrically connected to an external power source, and the other conductive rod is electrically connected to an electrical component via a power switch. The driving mechanism includes a first sealed container fixedly mounted on a support plate and a driving assembly controlled by a control switch. A first piston is slidably fitted inside the first sealed container. The driving assembly is drively connected to the first piston and drives it to reciprocate axially. The first piston divides the first sealed container into upper and lower chambers. The upper chamber communicates with the air inlets of two cylinders, and the lower chamber communicates with the left chamber.

[0006] Preferably, two horizontal plates are fixedly installed at vertical intervals along the support plate, and two partitions are fixedly installed at horizontal intervals along the support plate between the two horizontal plates. The support plate, horizontal plates, and partitions together form a protective cover with a front opening.

[0007] Preferably, slide rails are fixedly installed on adjacent sides of the two horizontal plates, and at least two sliders are slidably installed in each of the two slide rails. The two sliders in the same slide rail are fixedly connected to the two moving plates respectively. A groove communicating with the interior of the adjacent slide rail is opened on the top of the upper horizontal plate, and a connecting plate is fixedly installed on the top of the two upper sliders. The output ends of the two cylinders are fixedly connected to the two connecting plates respectively.

[0008] Preferably, the drive assembly includes a servo motor fixedly mounted on a support plate, and a threaded hole offset from its center is opened on the first piston along the axial direction. A screw is threadedly fitted inside the threaded hole, and the screw is connected to the servo motor for transmission.

[0009] Preferably, the two cylinders are symmetrically fixedly installed on the left and right sides of the upper horizontal plate, and a second connecting pipe connecting the lower chamber and the left chamber is fixedly installed at the lower end of the first sealing tank, and a three-way pipe connecting the upper chamber is fixedly installed at the upper end. The other two ports of the three-way pipe are fixedly installed with first connecting pipes, and the other ends of the two first connecting pipes are respectively connected to the air inlets of the two cylinders.

[0010] Beneficial effects: Compared with the prior art, this utility model provides a training platform with protective function. The training platform with protective function has a unique structure and is easy to use. This electronic teaching training platform uses a servo motor to drive the screw to rotate, which drives the first piston to move, thereby controlling the extension and retraction of the cylinder piston rod to realize the opening and closing of the two moving plates. When the protective cover is not closed, the movement of the second piston causes the conductive ring to separate from the conductive rod, and the circuit is automatically cut off. This not only reduces the risk of electric shock, but also prevents electric sparks, resistor explosions, etc. from causing damage to the trainees, thereby ensuring the safety of the trainees during operation. Attached Figure Description

[0011] Figure 1 This is a three-dimensional front view schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a three-dimensional side view of the structure of this utility model;

[0013] Figure 3 This is a cross-sectional schematic diagram of the first sealed container structure of this utility model;

[0014] Figure 4 This utility model Figure 1 Enlarged schematic diagram of the structure in area A.

[0015] In the diagram: 1. Workbench; 2. Support plate; 3. Horizontal plate; 4. Partition plate; 5. Slide rail; 6. Moving plate; 7. Connecting plate; 8. First sealing tank; 9. First piston; 10. Screw; 11. Control switch; 12. Servo motor; 13. T-connector; 14. First connecting pipe; 15. Cylinder; 16. Second sealing tank; 17. Second piston; 18. Conductive ring; 19. Conductive rod; 20. Insulating sleeve; 21. Second connecting pipe; 22. Power switch. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Example 1: This Example 1 provides a training platform with protective functions. It is a direct improvement on an existing training platform, with a unique structure. Please refer to [link / reference]. Figure 1-4As shown, the device includes a workbench 1, a power failure protection device, a power switch 22, and a control switch 11. A support plate 2 is fixedly installed on the top of the workbench 1. A protective cover with a front opening is fixedly installed on the front side of the support plate 2. Electrical components for training are installed inside the protective cover. Two movable plates 6 are symmetrically slidably installed at the opening of the protective cover. The electrical components for training are all existing equipment and can be flexibly adjusted according to the training content.

[0018] Two horizontal plates 3 are fixedly installed vertically at intervals along the upper edge of the support plate 2. Two partition plates 4 are fixedly installed horizontally at intervals along the upper edge of the support plate 2 between the two horizontal plates 3. The support plate 2, horizontal plates 3, and partition plates 4 together form a protective cover with a front opening. There are multiple ways to install the two movable plates 6. For example, slide rails 5 are fixedly installed on the adjacent sides of the two horizontal plates 3. At least two sliders are slidably installed in the two slide rails 5. The two sliders in the same slide rail 5 are fixedly connected to the two movable plates 6 respectively. The top of the upper horizontal plate 3 is provided with a groove that communicates with the interior of the adjacent slide rail 5. The top of the two sliders on the upper side is fixedly installed with connecting plates 7. The output ends of the two cylinders 15 are fixedly connected to the two connecting plates 7 respectively.

[0019] The power failure protection device includes a drive mechanism, a power failure mechanism, and two cylinders 15. The output ends of the two cylinders 15 are respectively connected to two moving plates 6 and drive the two moving plates 6 to move away from or towards each other. The power failure mechanism includes a second sealed canister 16 fixedly installed on a support plate 2. Both ends of the second sealed canister 16 are fixedly installed with insulating sleeves 20 communicating with its interior. A second piston 17 is slidably fitted inside the second sealed canister 16 along the axial direction. The second piston 17 divides the second sealed canister 16 into left and right chambers. A through hole is opened on the second piston 17 along the axial direction, and a conductive ring 18 is fixedly fitted inside the through hole.

[0020] Two conductive rods 19 are slidably fitted inside the conductive ring 18 at intervals along the axial direction. The ends of the two conductive rods 19 that are far apart from each other are fixedly fitted inside the insulating sleeves 20 on adjacent sides. One of the conductive rods 19 is electrically connected to an external power source, and the other conductive rod 19 is electrically connected to an electrical component via a power switch 22. In the initial state, when the two moving plates 6 are in contact, the second piston 17 is located in the middle of the second sealed can 16. At this time, the two ends of the conductive ring 18 are respectively fitted on the two conductive rods 19, and the two conductive rods 19 are in a connected state. The driving mechanism includes a first sealed can 8 fixedly installed on the support plate 2 and a driving assembly controlled by the control switch 11. A first piston 9 is slidably fitted inside the first sealed can 8. The driving assembly is connected to the first piston 9 and drives the first piston 9 to slide back and forth along the axial direction.

[0021] The drive assembly includes a servo motor 12 fixedly mounted on a support plate 2. A threaded hole offset from its center is opened along the axial direction on the first piston 9. A screw 10 is threadedly fitted inside the threaded hole. The screw 10 is connected to the servo motor 12 for transmission. The servo motor 12 can detect the number of rotations of the screw 10 through its internal encoder, thereby detecting the distance the first piston 9 moves. When the number of rotations of the screw 10 reaches a preset threshold, the servo motor 12 automatically reverses, thereby driving the first piston 9 to move back and forth. There are various ways to install the screw 10. For example, both ends of the screw 10 are rotatably connected to the first sealed canister 8 through bearings, and one end of the screw 10 passes through the first sealed canister 8 and is fixedly connected to the output shaft of the servo motor 12 through a coupling.

[0022] The first piston 9 divides the first sealed container 8 into upper and lower chambers. The upper chamber is connected to the air inlets of the two cylinders 15, and the lower chamber is connected to the left chamber. There are various ways to connect them. For example, the two cylinders 15 are symmetrically fixed on the left and right sides of the upper horizontal plate 3. The lower end of the first sealed container 8 is fixedly installed with a second connecting pipe 21 that connects the lower chamber and the left chamber, and the upper end is fixedly installed with a three-way pipe 13 that connects to the upper chamber. The other two ports of the three-way pipe 13 are fixedly installed with first connecting pipes 14. The other ends of the two first connecting pipes 14 are connected to the air inlets of the two cylinders 15 respectively.

[0023] Working principle: When we use this training platform for training, we first start the servo motor 12 by controlling the switch 11. The servo motor 12 drives the screw 10 to rotate and drives the first piston 9 to move downward through the threaded connection. At this time, the volume of the upper chamber increases and the pressure decreases, which causes the piston rods of the two cylinders 15 to retract and the two moving plates 6 to move away from each other. At the same time, the volume of the lower chamber decreases and the pressure increases. Since the lower chamber is connected to the left chamber, the high pressure gas in the left chamber will push the second piston 17 to move to the right, causing the conductive ring 18 to disengage from the conductive rod 19 on the left. At this time, the two conductive rods 19 are in the disconnected state.

[0024] When the trainees connect the circuit and need power, they control the servo motor 12 to reverse again via the control switch 11. At this time, the first piston 9 moves upward, the volume of the upper chamber decreases, and the volume of the lower chamber increases, causing the two moving plates 6 to collide with each other. The conductive ring 18 is then re-attached to the conductive rod 19 on the left side, and the two conductive rods 19 are connected again. Then, the power switch 22 can be pressed to supply power to the electrical components. Through the linkage of the protective cover, the moving plate 6, and the power failure protection device, the electrical components in the training can only be powered when the protective cover is closed. This not only effectively reduces the risk of electric shock to the trainees, but also avoids damage to the trainees caused by electric sparks or resistor explosions when the circuit is short-circuited. In addition, when the protective cover is in a sealed state, it can also prevent dust from the electrical components in the training and extend the service life of the electrical components.

[0025] Example 2: The difference between Example 2 and Example 1 is that the support plate 2, the horizontal plate 3, and the partition plate 4 are all made of insulating and flame-retardant materials, and the two movable plates 6 are transparent explosion-proof glass, so that the staff can observe the situation inside the protective cover. In addition, in order to avoid the generation of electric arc when the conductive ring 18 separates from the conductive rod 19 on the left, nitrogen can be filled into the lower chamber and the left chamber to avoid the generation of electric arc.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A training platform with protective function, comprising a workbench (1), characterized in that: It also includes a power failure protection device, a power switch (22), and a control switch (11). A support plate (2) is fixedly installed on the top of the workbench (1). A protective cover with a front opening is fixedly installed on the front side of the support plate (2). Electrical components for training are provided inside the protective cover. Two movable plates (6) are symmetrically slidably installed at the opening of the protective cover. The power failure protection device includes a drive mechanism, a power failure mechanism, and two cylinders (15). The output ends of the two cylinders (15) are respectively connected to the two movable plates (6) and drive the two movable plates (6) to move away from or towards each other. The power failure mechanism includes a second sealed canister (16) fixedly installed on the support plate (2). Insulating sleeves (20) communicating with the interior of the second sealed canister (16) are fixedly installed at both ends. A second piston (17) is slidably installed inside the second sealed canister (16) along the axial direction. The second piston (17) divides the second sealed canister (16) into two chambers, the second... A through hole is provided on the piston (17) along the axial direction, and a conductive ring (18) is fixedly fitted inside the through hole; two conductive rods (19) are slidably fitted inside the conductive ring (18) along the axial direction, and the ends of the two conductive rods (19) that are far apart from each other are fixedly fitted inside the insulating sleeves (20) on the adjacent sides, and one of the conductive rods (19) is electrically connected to an external power source, and the other conductive rod (19) is electrically connected to an electrical component via a power switch (22); the driving mechanism includes a first sealed canister (8) fixedly installed on a support plate (2) and a driving assembly controlled by a control switch (11), a first piston (9) is slidably fitted inside the first sealed canister (8), the driving assembly is connected to the first piston (9) in a transmission connection, and drives the first piston (9) to slide back and forth along the axial direction; the first piston (9) divides the first sealed canister (8) into upper and lower chambers, and the upper chamber is connected to the air inlet of the two cylinders (15), and the lower chamber is connected to the left chamber.

2. The training platform with protective function according to claim 1, characterized in that: Two horizontal plates (3) are fixedly installed vertically at intervals on the upper edge of the support plate (2), and two partition plates (4) are fixedly installed horizontally at intervals on the upper edge of the support plate (2) between the two horizontal plates (3). The support plate (2), horizontal plates (3), and partition plates (4) together form a protective cover with an opening at the front end.

3. The training platform with protective function according to claim 2, characterized in that: Slide rails (5) are fixedly installed on the adjacent sides of the two horizontal plates (3). At least two sliders are slidably installed in the two slide rails (5). The two sliders in the same slide rail (5) are fixedly connected to the two moving plates (6). The top of the upper horizontal plate (3) is provided with a groove that communicates with the interior of the adjacent slide rail (5). The top of the two sliders on the upper side is fixedly installed with connecting plates (7). The output ends of the two cylinders (15) are fixedly connected to the two connecting plates (7).

4. A training platform with protective function according to claim 1, characterized in that: The drive assembly includes a servo motor (12) fixedly mounted on a support plate (2). A threaded hole offset from its center is provided on the first piston (9) along the axial direction. A screw (10) is threadedly fitted inside the threaded hole. The screw (10) is connected to the servo motor (12) in a transmission connection.

5. A training platform with protective function according to claim 1, characterized in that: The two cylinders (15) are symmetrically fixed on the left and right sides of the upper horizontal plate (3). The lower end of the first sealing tank (8) is fixedly installed with a second connecting pipe (21) connecting the lower chamber and the left chamber, and the upper end is fixedly installed with a three-way pipe (13) connecting the upper chamber. The other two ports of the three-way pipe (13) are fixedly installed with first connecting pipes (14). The other ends of the two first connecting pipes (14) are connected to the air inlets of the two cylinders (15).

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