High-voltage grounding switch for electric locomotive teaching simulation

Abstract

The utility model discloses a high-voltage grounding switch for electric locomotive teaching simulation, which comprises a connecting seat, the top of the connecting seat is rotatably connected with a shaft body, two sides of the shaft body are fixedly connected with a left support and a right support respectively, one end of the left support and one end of the right support are fixedly connected with knife switches, and two sides of the shaft body are connected with knife switches. One end of the connecting seat is fixedly connected with a contact spring piece, the contact spring piece corresponds to the position of the knife switch, a lower cover is arranged at the bottom of the connecting seat, one end of the lower cover is rotatably connected with an operating rod assembly, an interlocking mechanism, a turntable assembly and a connecting rod assembly are arranged in the lower cover, one side of the interlocking mechanism is connected with a lock assembly, and the lower end of the shaft body is connected with the connecting rod assembly. One end of the connecting rod assembly is connected with the turntable assembly, and one end of the turntable assembly is fixedly connected with the operating rod assembly. The appearance size, each part and action interlocking control performance of the device are consistent with those of a real piece, the teaching practical training requirement and the safety requirement are completely met, and meanwhile the cost is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of electric locomotive teaching technology, specifically a high-voltage grounding switch for electric locomotive teaching simulation. Background Technology

[0002] Electric locomotive training refers to education and training on the operation, driving, maintenance, and repair of electric locomotives, as well as related theoretical knowledge. The high-voltage grounding switch is a crucial component of an electric locomotive. Its main function is to ground the circuits on both sides of the main circuit breaker during locomotive inspection, maintenance, or repair, ensuring that the switch can be quickly tripped in the event of a sudden power restoration during maintenance. It also releases static charge from the equipment and circuits under maintenance, ensuring the safety of maintenance personnel. Furthermore, it can neutralize static electricity and electromagnetic induction currents, preventing electromagnetic and electrostatic induction between de-energized lines and adjacent energized lines.

[0003] In recent years, with the rapid development of high-speed rail and urban rail transit in my country, in order to better adapt to market needs, railway locomotive depots and transportation vocational colleges across the country need to train electric locomotive drivers, locomotive maintenance workers, electric locomotive fitters, and students to meet the needs of rooftop operations, electric locomotive rooftop maintenance, and high-voltage component maintenance in a realistic simulation exercise. However, direct on-the-job operation is inherently dangerous, so teaching simulation equipment is needed to assist in the training process. Utility Model Content

[0004] The purpose of this invention is to provide a high-voltage grounding switch for electric locomotive teaching simulation, in order to solve the problem mentioned in the background art that direct hands-on operation in electric locomotive training exercises is relatively dangerous.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage grounding switch for electric locomotive teaching simulation, comprising a connecting base, a shaft rotatably connected to the top of the connecting base, a switch blade connected to both sides of the shaft, a contact spring plate fixedly connected to one end of the connecting base, the contact spring plate corresponding to the position of the switch blade, a lower cover provided at the bottom of the connecting base, an operating lever assembly rotatably connected to one end of the lower cover, an interlocking mechanism, a turntable assembly and a connecting rod assembly provided inside the lower cover, a lock assembly connected to one side of the interlocking mechanism, a connecting rod assembly connected to the lower end of the shaft, a connecting rod assembly connected to one end of the connecting rod assembly, and an operating lever assembly fixedly connected to one end of the turntable assembly.

[0006] Preferably, an upper cover is fixedly connected to the top of the connecting seat, and the upper cover is placed on the outer wall of the shaft.

[0007] Preferably, a left bracket and a right bracket are fixedly connected to both sides of the shaft, and a knife switch is fixedly connected to one end of each of the left and right brackets.

[0008] Preferably, a crank assembly is provided on the shaft, and a connecting rod assembly is connected to the bottom of the crank assembly.

[0009] Preferably, a grounding bolt is connected to the top of the connector, and a flexible wire is connected to the upper cover.

[0010] Preferably, the connecting seat has a through hole, and one end of the connecting rod assembly passes through the through hole and is inserted into the lower cover.

[0011] Preferably, the lock assembly consists of five locks, which are blue and yellow in color.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The external dimensions, components, and interlocking control performance of this device are consistent with the real device, fully meeting the teaching and training needs and safety requirements, while also greatly reducing costs.

[0014] (2) This device connects the control lever assembly, connecting rod assembly, crank assembly and shaft through transmission, so that the opening and closing actions of the switch can be driven by rotating the control lever assembly. This ensures that the external dimensions, components and action interlocking control performance of this device are consistent with the real part, thus improving the effect of practical training.

[0015] (3) This device can play a safe locking role for the control lever assembly by setting an interlocking mechanism and a lock assembly. The control lever assembly can only be rotated after one lock of the lock assembly is opened. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the closing structure of a high-voltage grounding switch for teaching simulation of electric locomotives according to this utility model;

[0017] Figure 2 This is a schematic diagram of the opening structure of a high-voltage grounding switch for teaching simulation of electric locomotives according to this utility model;

[0018] Figure 3 This is a cross-sectional view of a high-voltage grounding switch for teaching simulation of electric locomotives according to this utility model;

[0019] Figure 4 This is a three-dimensional view of a high-voltage grounding switch for teaching simulation of electric locomotives according to this utility model.

[0020] In the diagram: 1. Knife switch; 2. Contact spring plate; 3. Upper cover; 4. Left bracket; 5. Crank assembly; 6. Connecting seat; 7. Shaft; 8. Right bracket; 9. Connecting rod assembly; 10. Interlocking mechanism; 11. Lower cover; 12. Control lever assembly; 13. Flexible connection; 14. Grounding bolt; 15. Lock assembly; 16. Turntable assembly. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4This utility model provides a technical solution: a high-voltage grounding switch for electric locomotive teaching simulation, including a connecting seat 6, a shaft 7 rotatably connected to the top of the connecting seat 6, an upper cover 3 fixedly connected to the top of the connecting seat 6, the upper cover 3 covering the outer wall of the shaft 7, a left bracket 4 and a right bracket 8 fixedly connected to both sides of the shaft 7 respectively, and a switch 1 fixedly connected to one end of each of the left bracket 4 and right bracket 8. This structure can ensure the stability of the connection between the switch 1 and the shaft 7. A crank assembly 5 is provided on the shaft 7, and a connecting rod assembly 9 is driven to the bottom of the crank assembly 5. This structure of the crank assembly 5 facilitates the rotation of the shaft 7 and drives the connecting rod assembly 9 to move. A grounding bolt 14 is connected to the top of the connecting seat 6, and a flexible connecting wire 13 is connected to the upper cover 3. This structure can shield and protect the shaft 7 through the upper cover 3. The grounding bolt 14 can improve the safety of using this device. The connecting seat 6 has a through hole, and one end of the connecting rod assembly 9 is inserted into the lower cover 11 through the through hole. The gate 1 of this structure is mounted on the shaft 7 through the left bracket 4 and the right bracket 8. The connecting rod assembly 9, shaft 7, crank assembly 5 and operating lever assembly 12 are combined to form a transmission mechanism. The shaft 7, crank assembly 5, connecting rod assembly 9 and operating lever assembly 12 form a transmission mechanism. Rotating the operating lever assembly 12 causes the entire transmission mechanism to drive, thereby causing the shaft 7 to drive the gate 1 to rotate a certain angle. When the operating lever assembly 12 rotates 180° from one end to the other end, the gate 1 also rotates accordingly from the "working" position. The shaft 7 rotates 102° from the "ground" position to the "working" position or from the "ground" position to the "working" position. Both sides of the shaft 7 are connected to a knife gate 1. One end of the connecting seat 6 is fixedly connected to a contact spring plate 2, which corresponds to the position of the knife gate 1. A lower cover 11 is provided at the bottom of the connecting seat 6. One end of the lower cover 11 is rotatably connected to an operating lever assembly 12. Inside the lower cover 11 are an interlocking mechanism 10, a turntable assembly 16, and a connecting rod assembly 9. One side of the interlocking mechanism 10 is connected to a lock assembly 15, which consists of five locks in blue and yellow. This lock assembly 15 controls whether the transmission mechanism can rotate. There are five locks in total, one for the blue key and four for the yellow key. Only the blue key can be used. After the lock is opened by the blue key, the control lever assembly 12 can be rotated from the "operation" position to the "grounding" position. Once rotated to the "grounding" position, the interlocking mechanism 10 is locked in this position by the lock with the yellow key. Then the yellow key can be removed from the lock. The blue key is for the locomotive's closed operation state, unlocking to allow "pantograph to rise". The yellow key is for the locomotive's open grounding state, used for opening the high-voltage room door lock, converter cabinet lock, or roof sunroof lock for maintenance. The actual operation is as follows: Open grounding state 1. Rotate the blue key used for pantograph locking to the "pantograph lowered" position, remove the key and insert it into the blue lock of the grounding switch. 2. Rotate the blue key, pull out the control lever and rotate it to the "grounding" position. 3. Rotate and remove the yellow key.It can open locks that require power disconnection, such as the high-voltage room door lock, the converter cabinet lock, or the sunroof lock. For the closing operation: 1. Rotate and pull out the "yellow" key from the high-voltage room door lock, converter cabinet lock, or sunroof lock, and insert it into the yellow lock of the grounding switch. 2. Rotate the yellow key, pull out the grounding switch operating lever, and rotate it to the "working" position. 3. Rotate and pull out the blue key, insert it into the pantograph switch lock, and rotate it to the "pantograph raised" position. The lower end of shaft 7 is connected to connecting rod assembly 9. One end of connecting rod assembly 9 is connected to turntable assembly 16. One end of turntable assembly 16 is fixedly connected to operating lever assembly 12.

[0023] Working principle: When using the high-voltage grounding switch for teaching simulation of electric locomotives, first open the blue lock position of lock assembly 15. After the blue lock is opened by the blue key, the operating lever assembly 12 can be rotated from the "operation" position to the "grounding" position. Once rotated to the "grounding" position, the interlocking mechanism 10 is locked in this position by the lock with the yellow key. Then the yellow key can be removed from the lock. The blue key is the locomotive closing operation state, and unlocking allows the "pantograph to rise". The yellow key is the locomotive opening grounding state, which can be used for maintenance such as opening the high-voltage room door lock, transformer cabinet lock, or roof sunroof lock.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-voltage grounding switch for electric locomotive teaching simulation, comprising a connecting base (6), characterized in that: The top of the connecting seat (6) is rotatably connected to a shaft (7), and both sides of the shaft (7) are connected to a knife gate (1). One end of the connecting seat (6) is fixedly connected to a contact spring plate (2), and the contact spring plate (2) corresponds to the position of the knife gate (1). The bottom of the connecting seat (6) is provided with a lower cover (11), and one end of the lower cover (11) is rotatably connected to an operating lever assembly (12). Inside the lower cover (11) are an interlocking mechanism (10), a turntable assembly (16), and a connecting rod assembly (9). One side of the interlocking mechanism (10) is connected to a lock assembly (15). The lower end of the shaft (7) is connected to the connecting rod assembly (9), one end of the connecting rod assembly (9) is connected to the turntable assembly (16), and one end of the turntable assembly (16) is fixedly connected to the operating lever assembly (12).

2. The high-voltage grounding switch for electric locomotive teaching simulation according to claim 1, characterized in that: The top of the connecting seat (6) is fixedly connected to the upper cover (3), which covers the outer wall of the shaft (7).

3. A high-voltage grounding switch for electric locomotive teaching simulation according to claim 1, characterized in that: The shaft (7) is fixedly connected to a left bracket (4) and a right bracket (8) on both sides, and a knife switch (1) is fixedly connected to one end of the left bracket (4) and the right bracket (8).

4. A high-voltage grounding switch for electric locomotive teaching simulation according to claim 1, characterized in that: A crank assembly (5) is provided on the shaft (7), and a connecting rod assembly (9) is connected to the bottom of the crank assembly (5).

5. A high-voltage grounding switch for electric locomotive teaching simulation according to claim 1, characterized in that: The top of the connector (6) is connected to a grounding bolt (14), and the upper cover (3) is connected to a flexible wire (13).

6. A high-voltage grounding switch for electric locomotive teaching simulation according to claim 1, characterized in that: The connecting seat (6) has a through hole, and one end of the connecting rod assembly (9) passes through the through hole and is inserted into the lower cover (11).

7. A high-voltage grounding switch for electric locomotive teaching simulation according to claim 1, characterized in that: The lock assembly (15) consists of five locks, which are in two colors: blue and yellow.

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