False touch prevention device of air circuit breaker
By designing an air circuit breaker anti-accidental touch device including a limit mechanism, the problem that the air circuit breaker is easily accidentally touched is solved, effective protection of the switch key is achieved, and the normal operation of the power supply equipment or system is ensured.
Patent Information
- Application Number
- CN202421105134.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-21
AI Technical Summary
Air circuit breakers are usually installed in easy-to-access positions and are easily touched by people coming and going inadvertently, which may cause circuit interruption and affect the normal operation of power supply equipment or system.
An accidental collision prevention device including a circuit breaker main body, a switch key, and a limit mechanism is designed. The limit mechanism consists of an arc block, a moving block, a connecting rod, a spring and a limit column. Through the cooperation of the mechanical structure and the spring, the switch key is protected to avoid accidental contact.
It effectively avoids circuit interruption caused by the switch key being accidentally touched, ensures the normal operation of the power supply equipment or system, and prevents the arc block from excessively moving away from the main body of the circuit breaker.
Smart Images
Figure CN222380514U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric power equipment, in particular to an anti-miscollision device for an air circuit breaker. Background Art
[0002] An air circuit breaker is an electrical device used to cut off current when the circuit is interrupted or the current is overloaded to protect circuits and equipment from damage caused by overload or short circuit. It usually consists of a reliable electrical trigger mechanism and a pair of contacts. When the current exceeds the rated value, the trigger mechanism will cause the contacts to separate, thereby cutting off the current.
[0003] However, during the implementation of the above technical solution, it was found that there were at least the following technical problems:
[0004] Circuit breakers are usually installed in easily accessible locations, such as on a wall or on the side of a device, so they are often approached by passers-by. If people may inadvertently touch its switch, it may cause a circuit interruption, thereby affecting the normal operation of the power supply equipment or system. Utility Model Content
[0005] 1. Technical issues to be solved
[0006] In view of the deficiencies in the prior art, the utility model provides an anti-accidental-touch device for an air circuit breaker, which solves the technical problem that circuit breakers are usually installed in easily accessible locations, such as on a wall or the side of a device, and are therefore often approached by passers-by. If people may inadvertently touch its switch key, it may cause a circuit interruption, thereby affecting the normal operation of the power supply equipment or system.
[0007] (II) Technical solution
[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0009] An anti-accidental collision device for an air circuit breaker comprises a circuit breaker body, a switch key is arranged at the front end position of the circuit breaker body, and the anti-accidental collision device for the air circuit breaker also comprises a limiting mechanism, comprising two arc blocks, two moving blocks, two connecting rods, two springs and two limiting columns, rectangular grooves are provided at the left and right ends of the circuit breaker body, the two moving blocks are movably connected to the circuit breaker body through the two rectangular grooves, the two arc blocks correspond to the positions of the two moving blocks, the sides of the two moving blocks facing away from the circuit breaker body are fixedly connected to the corresponding moving blocks, the two connecting rods are located inside the two rectangular grooves, and the sides of the two connecting rods facing away from the moving blocks are fixedly connected to the inner wall of the circuit breaker body, the insides of the two moving blocks are provided with grooves, and the sides of the two moving blocks facing the connecting rods are penetrated by holes 2.
[0010] Preferably, the two limiting posts correspond to the positions of the two moving blocks, and the two limiting posts are movably connected to the corresponding moving blocks through grooves.
[0011] Preferably, the two connecting rods pass through the second hole and are movably connected with the corresponding limiting columns.
[0012] Preferably, the two springs are both located inside the groove, and the two springs are both fixedly connected to the corresponding limiting columns.
[0013] Preferably, both ends of the circuit breaker body are fixedly connected with fixed columns, and both ends of the circuit breaker body are provided with rotating columns corresponding to the positions of the fixed columns.
[0014] Preferably: a hole one is formed through the right surfaces of the two rotating columns, and each rotating column is rotatably connected to the corresponding fixed column through the hole one.
[0015] Preferably, the rear surfaces of the two rotating columns are fixedly connected with connecting cross bars, and the two connecting cross bars are parallel to each other.
[0016] Preferably: a U-shaped baffle corresponding to the switch key position is arranged at the rear end of the circuit breaker body, and the front surface of the U-shaped baffle is fixedly connected to the rear surfaces of the two connecting cross bars.
[0017] (III) Beneficial effects
[0018] 1. After completing the operation of the switch key on the air circuit breaker, the circuit breaker body needs to be protected. At this time, the U-shaped baffle is located at the lower end of the circuit breaker body. Lift the U-shaped baffle. At this time, the connecting cross bar will drive the U-shaped baffle to perform an upward circular motion with the fixed column as the center. When the two connecting cross bars pass through the arc block, the arc surface of the arc block faces downward, so the arc block will be squeezed into the rectangular groove. At this time, the two springs are stretched. When the two connecting cross bars completely pass through the two arc blocks, the two springs that were originally squeezed rebound and drive the two arc blocks back to their original positions. At this time, release the U-shaped baffle, and the two arc blocks will resist the corresponding connecting cross bars, so that the U-shaped baffle stays accurately at the front end of the switch key, avoiding the switch key being accidentally touched by others and causing circuit interruption, so that the power supply equipment or system can operate normally without being affected.
[0019] 2. When the originally stretched spring returns to its original position, the two springs will also drive the corresponding arc block to move. When the arc block moves to the appropriate distance, the two limit columns will press against the inner wall of the corresponding arc block, so that the arc block can no longer move, thus avoiding the problem of the arc block moving too much and detaching from the circuit breaker body. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.
[0021] Figure 1 It is a structural diagram of the entire utility model;
[0022] Figure 2 This is a structural diagram of the U-shaped baffle of the utility model;
[0023] Figure 3 This is a structural diagram of a rectangular slot of the utility model;
[0024] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.
[0025] Legend: 1. Circuit breaker body; 2. U-shaped baffle; 3. Connecting cross bar; 4. Rotating column; 5. Arc block; 6. Switch key; 7. Rectangular groove; 8. Fixed column; 9. Moving block; 10. Hole 1; 11. Connecting rod; 12. Spring; 13. Hole 2; 14. Groove; 15. Limit column. DETAILED DESCRIPTION
[0026] The embodiment of the present application provides an anti-accidental-touch device for an air circuit breaker, which effectively solves the technical problem that the circuit breaker is usually installed in an easily accessible position, such as on a wall or on the side of the equipment. Therefore, the circuit breaker is often approached by passers-by. If people may inadvertently touch its switch key, it may cause a circuit interruption, thereby affecting the normal operation of the power supply equipment or system. After the operation of the switch key on the air circuit breaker is completed, the circuit breaker body needs to be protected. At this time, the U-shaped baffle is located at the lower end position of the circuit breaker body. The U-shaped baffle is lifted, and the connecting cross bar will drive the U-shaped baffle. It performs upward circular motion with the fixed column as the center. When the two connecting cross bars pass through the arc block, the arc surface of the arc block faces downward, so the arc block will be squeezed into the rectangular groove. At this time, the two springs are stretched. When the two connecting cross bars completely pass through the two arc blocks, the two springs that were originally squeezed rebound and drive the two arc blocks back to their original positions. At this time, the U-shaped baffle is released, and the two arc blocks will resist the corresponding connecting cross bars, so that the U-shaped baffle stays accurately at the front end position of the switch key, avoiding the switch key being accidentally touched by others and causing circuit interruption, so that the power supply equipment or system can operate normally without being affected.
[0027] Example
[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that the circuit breaker is usually installed in an easily accessible position, such as on a wall or on the side of the equipment, so the circuit breaker is often approached by passers-by. If people may inadvertently touch its switch key, the circuit may be interrupted, thereby affecting the normal operation of the power supply equipment or system. The overall idea is as follows:
[0029] In view of the problems existing in the prior art, the utility model provides an anti-miscollision device for an air circuit breaker, comprising a circuit breaker body 1, a switch key 6 is arranged at the front end of the circuit breaker body 1, and is characterized in that the anti-miscollision device for an air circuit breaker also includes a limiting mechanism, including two arc blocks 5, two moving blocks 9, two connecting rods 11, two springs 12 and two limiting columns 15, rectangular grooves 7 are provided at the left and right ends of the circuit breaker body 1, the two moving blocks 9 are movably connected to the circuit breaker body 1 through the two rectangular grooves 7, the two arc blocks 5 correspond to the positions of the two moving blocks 9, the sides of the two moving blocks 9 facing away from the circuit breaker body 1 are fixedly connected to the corresponding moving blocks 9, the two connecting rods 11 are located inside the two rectangular grooves 7, and the sides of the two connecting rods 11 facing away from the moving blocks 9 are fixedly connected to the inner wall of the circuit breaker body 1, and the inner wall of the two moving blocks 9 The two movable blocks 9 are provided with grooves 14, and the two movable blocks 9 are provided with holes 13 on one side facing the connecting rod 11. The two limit posts 15 correspond to the positions of the two movable blocks 9. The two limit posts 15 are movably connected with the corresponding movable blocks 9 through the grooves 14. After the operation of the switch key 6 on the air circuit breaker is completed, the circuit breaker body 1 needs to be protected. At this time, the U-shaped baffle 2 is located at the lower end position of the circuit breaker body 1. The U-shaped baffle 2 is lifted. At this time, the connecting cross bar 3 will drive the U-shaped baffle 2 to perform an upward circular motion with the fixed column 8 as the center. When the two connecting cross bars 3 pass through the arc block 5, the arc surface of the arc block 5 faces downward, so the arc block 5 will be squeezed into the rectangular groove 7. At this time, the two springs 12 are stretched. When the two connecting cross bars 3 completely pass through the two arc blocks 5, the two springs 12 that were originally squeezed rebound, driving the two arc blocks 5 back to their original positions.
[0030] The two connecting rods 11 pass through the second hole 13 and are movably connected with the corresponding limit columns 15. The two springs 12 are located inside the groove 14. The two springs 12 are fixedly connected to the corresponding limit columns 15. Both ends of the circuit breaker body 1 are fixedly connected with the fixed columns 8, and both ends of the circuit breaker body 1 are provided with rotating columns 4 corresponding to the positions of the fixed columns 8. The right surfaces of the two rotating columns 4 are penetrated by a hole 10. Each rotating column 4 is rotatably connected to the corresponding fixed column 8 through the hole 10. At this time, the U-shaped baffle 2 is released, and the two arc blocks 5 will resist the corresponding connecting cross bar 3, so that the U-shaped baffle 2 stays accurately at the front end position of the switch key 6, avoiding the switch key 6 being accidentally touched by others and causing circuit interruption, so that the power supply equipment or system can operate normally without being affected.
[0031] The rear surfaces of the two rotating columns 4 are fixedly connected with connecting cross bars 3, and the two connecting cross bars 3 are parallel to each other. A U-shaped baffle 2 corresponding to the position of the switch key 6 is provided at the rear end position of the circuit breaker body 1, and the front surfaces of the U-shaped baffle 2 are fixedly connected with the rear surfaces of the two connecting cross bars 3. When the originally stretched spring 12 returns to its original position, the two springs 12 will also drive the corresponding arc block 5 to move. When the arc block 5 moves to a suitable distance, the two limit columns 15 will resist the inner wall of the corresponding arc block 5, so that the arc block 5 can no longer move, thereby avoiding the problem of the arc block 5 moving out of the circuit breaker body 1 due to excessive movement.
[0032] Working principle:
[0033] After the operation of the switch key 6 on the air circuit breaker is completed, the circuit breaker body 1 needs to be protected. At this time, the U-shaped baffle 2 is located at the lower end of the circuit breaker body 1. First, lift the U-shaped baffle 2. At this time, the connecting cross bar 3 will drive the U-shaped baffle 2 to perform an upward circular motion with the fixed column 8 as the center. When the two connecting cross bars 3 pass through the arc block 5, the arc surface of the arc block 5 faces downward, so the arc block 5 will be squeezed into the rectangular groove 7. At this time, the two springs 12 are stretched. When the two connecting cross bars 3 completely pass through the two arc blocks 5, the two springs 12 that were originally squeezed rebound, driving the two arc blocks 5 back to their original positions. At this time, release the U-shaped baffle 2, and the two arc blocks 5 will press against the corresponding connecting cross bar 3, so that the U-shaped baffle 2 stays accurately at the front end position of the switch key 6, avoiding the switch key 6 being accidentally touched by others and causing circuit interruption, so that the power supply equipment or system can operate normally without being affected. When the originally stretched spring 12 returns to its original position, the two springs 12 will also drive the corresponding arc block 5 to move. When the arc block 5 moves to a suitable distance, the two limit columns 15 will press against the inner wall of the corresponding arc block 5, so that the arc block 5 can no longer move, avoiding the problem of the arc block 5 moving out of the circuit breaker body 1 due to excessive movement.
[0034] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.
Claims
1. An anti-mistaken collision device for an air circuit breaker, comprising a circuit breaker body (1), wherein a switch key (6) is arranged at the front end of the circuit breaker body (1), characterized in that: The anti-miscollision device for an air circuit breaker also includes a limiting mechanism, including two arc-shaped blocks (5), two moving blocks (9), two connecting rods (11), two springs (12) and two limiting columns (15); rectangular grooves (7) are provided at both left and right ends of the circuit breaker body (1); the two moving blocks (9) are movably sleeved with the circuit breaker body (1) through the two rectangular grooves (7); the two arc-shaped blocks (5) correspond to the positions of the two moving blocks (9); and the sides of the two moving blocks (9) facing away from the circuit breaker body (1) are fixedly connected to the corresponding moving blocks (9); The two connecting rods (11) are both located inside the two rectangular grooves (7), and the sides of the two connecting rods (11) facing away from the moving blocks (9) are fixedly connected to the inner wall of the circuit breaker body (1), the insides of the two moving blocks (9) are both provided with grooves (14), and the sides of the two moving blocks (9) facing the connecting rods (11) are both provided with holes (13) extending therethrough.
2. The device for preventing accidental collision of an air circuit breaker according to claim 1, characterized in that: The two limiting posts (15) correspond to the positions of the two moving blocks (9); The two limiting columns (15) are movably connected to the corresponding moving blocks (9) through the grooves (14).
3. The device for preventing accidental collision of an air circuit breaker according to claim 1, characterized in that: The two connecting rods (11) both pass through the second hole (13) and are movably connected to the corresponding limiting pillars (15).
4. The device for preventing accidental collision of an air circuit breaker according to claim 1, characterized in that: The two springs (12) are both located inside the groove (14); Wherein, the two springs (12) are both fixedly connected to the corresponding limiting columns (15).
5. The device for preventing accidental collision of an air circuit breaker according to claim 1, characterized in that: Both ends of the circuit breaker body (1) are fixedly connected with fixed columns (8), and both ends of the circuit breaker body (1) are provided with rotating columns (4) corresponding to the positions of the fixed columns (8).
6. The device for preventing accidental collision of an air circuit breaker according to claim 5, characterized in that: A hole (10) is formed through the right surfaces of the two rotating columns (4); Each rotating column (4) is rotatably connected to a corresponding fixed column (8) via hole one (10).
7. The device for preventing accidental collision of an air circuit breaker according to claim 5, characterized in that: The rear surfaces of the two rotating columns (4) are both fixedly connected with connecting cross bars (3), and the two connecting cross bars (3) are parallel to each other.
8. The device for preventing accidental collision of an air circuit breaker according to claim 1, characterized in that: A U-shaped baffle (2) corresponding to the position of the switch key (6) is provided at the rear end of the circuit breaker body (1); Wherein, the front surface of the U-shaped baffle (2) is fixedly connected to the rear surfaces of the two connecting cross bars (3).