Miniature circuit breaker mis-switching-on and mis-switching-off prevention structure

Abstract

The utility model relates to the field of circuit breakers, in particular to a miniature circuit breaker mistaken-closing and mistaken-opening prevention structure, which comprises a protection structure mounted on the surface of a circuit breaker, the protection structure comprises a blocking cover, mounting plates are mounted at two ends of the blocking cover and are of L-shaped structures, first abdicating grooves are formed in the surfaces of the two mounting plates, and fixing structures are mounted in the first abdicating grooves. The structure can be fixed through the clamping plate and the pressing plate, avoids the traditional situation that a cabinet body is needed for supporting for bolt fixation, reduces the use limitation, improves the use convenience, is simple in operation, is low in manufacturing cost, can remind a worker through a warning slogan, further improves the practicability and warning effect, and is suitable for popularization and application. And through the arrangement of the C-shaped blocking cover, ventilation and heat dissipation can be effectively carried out, the situation of tripping caused by overheating of the circuit breaker is avoided, the service life of the circuit breaker is further prolonged, the safety of the circuit breaker is further improved, and therefore the practicability of the structure for preventing mistaken switching-on and switching-off of the miniature circuit breaker is embodied.

Description

TECHNICAL FIELD

[0001] The utility model relates to a circuit breaker technical field, specifically is a kind of micro circuit breaker anti-misoperation structure. BACKGROUND

[0002] Micro circuit breaker can be connected, carry and break the current under normal circuit condition, also can be connected, carry certain time and break the current control, protection equipment under the specified abnormal circuit condition, widely used in distribution system, micro circuit breaker widely used place such as UPS, frequency converter exists multiple circuit power supply, UPS has mains input circuit and maintenance power supply circuit, frequency converter has incoming line power supply circuit and power frequency bypass power supply circuit, maintenance circuit breaker, bypass circuit breaker is prohibited to close during normal operation, otherwise cause equipment short-circuit accident. At present, to prevent misoperation, micro circuit breaker is generally prevented from being installed on the circuit breaker operating handle upper and lower anti-operation cover, is fixed with screw, needs to have cabinet opening to support, complex structure, difficult to meet wide application. At the same time, when standby power supply is started, the circuit breaker operating handle upper cover needs to be removed by screw, which affects the operation efficiency, and the circuit breaker is completely covered, which leads to poor heat dissipation, affects service life and is prone to tripping due to overheating. SUMMARY

[0003] The utility model mainly aims at solving the above-mentioned existing technical problems, and provides a micro circuit breaker anti-misoperation structure.

[0004] The specific scheme of the utility model is: a micro circuit breaker anti-misoperation structure, including circuit breaker, the protective structure is installed on the surface of circuit breaker, the protective structure includes cover, the cover both ends are installed with mounting plate and the mounting plate is L-shaped structure, the first gap is equipped on the surface of two mounting plates, the fixed structure is installed in the first gap, the fixed structure includes fixed shaft installed in the first gap, the clamping plate is rotatably connected on the fixed shaft, the other end of the clamping plate is connected with the pressing plate, the pressing plate is inclined upward away from the clamping plate, the pressing plate and the clamping plate are integrally formed and are arc-shaped at the connection, the fixed shaft penetrates the connection between the pressing plate and the clamping plate, so that the clamping plate can rotate on the fixed shaft, two second gaps are equipped on the pressing plate, the torsional spring is installed in the second gap, the torsional spring is sleeved on the surface of fixed shaft, one end of the torsional spring is connected with the first gap, the other end of the torsional spring is connected with one side of the pressing plate, so that the pressing plate is pressed when it rotates downward and the torsional spring is pressed.

[0005] According to the above technical scheme, the clamping plate is lifted upward by pressing the pressing plate and rotating downward on the fixed shaft, and the torsional spring is elastically stored by the pressing plate, so that the clamping plate clamps the surface of the circuit breaker when the pressing plate is released.

[0006] Further, the surface of the clamping plate is provided with anti-skid blocks.

[0007] According to the above technical scheme, the anti-skid block can improve the clamping effect of the clamping plate.

[0008] Further, the cover is in a C-shaped structure.

[0009] According to the above technical scheme, the C-shaped structure is hollow on both sides, which can ventilate to avoid tripping caused by high temperature inside.

[0010] Further, the two mounting plates are provided with warning areas, and the warning areas are provided with warning slogans.

[0011] According to the above technical scheme, the warning area can be provided with a cautious operation mark to remind the staff.

[0012] Further, the anti-skid block is made of rubber.

[0013] According to the above technical scheme, the rubber material can improve the friction and improve the stability of the cover clamping.

[0014] Compared with the prior art, the micro circuit breaker anti-misoperation structure has the following advantages: the micro circuit breaker anti-misoperation structure can be fixed by the clamping plate and the pressing plate, avoiding the traditional bolt fixing supported by the cabinet, reducing the use limitation and improving the use convenience, and the operation is simple and the manufacturing cost is low. The practicality and warning effect are further improved by reminding the staff through the warning slogans, and the service life and safety of the circuit breaker are further improved by effectively ventilating and heat dissipating through the C-shaped cover, avoiding tripping caused by overheating of the circuit breaker, thereby reflecting the practicality of the micro circuit breaker anti-misoperation structure. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a plan view of the utility model;

[0016] Figure 2 is an enlarged view of the cover structure of the utility model;

[0017] Figure 3 is Figure 2 an enlarged view of structure A of the utility model;

[0018] Figure 4 is Figure 2 an enlarged view of structure B of the utility model;

[0019] In the drawing: 1, circuit breaker; 2, cover; 3, mounting plate; 4, first displacement slot; 5, fixed shaft; 6, clamping plate; 7, pressing plate; 8, second displacement slot; 9, torsional spring; 10, anti-skid block; 11, warning area. DETAILED DESCRIPTION

[0020] See Figures 1-4 The embodiment is a micro circuit breaker anti-misoperation structure. The surface of the circuit breaker 1 is provided with a protection structure. The protection structure is used for preventing the circuit breaker 1 from misoperation. The protection structure comprises a cover 2. The cover 2 is provided with mounting plates 3 at both ends and has an L-shaped structure. The surfaces of the two mounting plates 3 are provided with first accommodation grooves 4. The first accommodation grooves 4 are provided with fixing structures. The fixing structures are used for fixing the cover 2. The fixing structures wrap fixing shafts 5 which are fixed horizontally in the first accommodation grooves 4. The surfaces of the fixing shafts 5 are rotatably connected with clamping plates 6. The other ends of the clamping plates 6 are connected with pressing plates 7. The ends of the pressing plates 7 away from the clamping plates 6 are inclined upward, so as to facilitate the clamping of the operator. The connection between the pressing plates 7 and the clamping plates 6 is arc-shaped, so that the limitation is smaller when rotating in the first accommodation grooves 4. The pressing plates 7 and the clamping plates 6 are integrally formed, so that they are more simple and durable. The fixing shafts 5 penetrate the connection between the pressing plates 7 and the clamping plates 6, so that the clamping plates 6 can rotate on the fixing shafts 5. The pressing plates 7 are provided with second accommodation grooves 8. The second accommodation grooves 8 are provided with torsional springs 9. The torsional springs 9 are sleeved on the surfaces of the fixing shafts 5. One end of the torsional spring 9 is fixedly connected with the first accommodation groove 4. The other end of the torsional spring 9 is fixedly connected with the back side of the pressing plate 7. When the pressing plate 7 rotates downward, the torsional spring 9 is pressed to perform an elastic force storage movement.

[0021] Further, the surface of the clamping plate 6 is provided with anti-skid blocks 10. The anti-skid blocks 10 are used for improving the anti-skid effect of the clamping plate 6, so that the clamping plate 6 is more stable when clamping the circuit breaker 1.

[0022] Further, the cover 2 has a C-shaped structure, so that the two sides are hollowed out to facilitate ventilation and reduce the temperature of the circuit breaker 1.

[0023] Further, the surfaces of the two mounting plates 3 are provided with warning areas 11. The warning areas 11 are provided with cautious operation warning slogans, which are used for prompting the operator.

[0024] Further, the anti-skid blocks 10 are made of rubber, which improves the anti-skid effect of the clamping plate 6.

[0025] The working principle of the embodiment is as follows: when in use, the two pressing plates 7 are pinched by hand, so that the pressing plates 7 drive the clamping plates 6 to flip on the fixing shafts 5, so that the clamping plates 6 are opened to both sides, and the pressing plates 7 are flipped downward to press the torsional springs 9 to perform an elastic force storage movement. Then, the clamping plates 6 are aligned with the circuit breaker 1, so that the cover 2 of the circuit breaker 1 is aligned with the switch of the circuit breaker 1. Then, the pressing plates 7 are released. At this time, the torsional springs 9 rebound upward to push the pressing plates 7, so that the clamping plates 6 clamp the circuit breaker 1 downward to achieve the fixing effect. At the same time, the C-shaped cover 2 can ventilate through both sides to reduce the temperature of the circuit breaker 1. When disassembling, the pressing plates 7 are pinched outward and taken out.

Claims

1. A structure for preventing accidental closing and opening of a miniature circuit breaker, comprising a circuit breaker, characterized in that: The circuit breaker surface is equipped with a protective structure, which includes a cover. Mounting plates are mounted on both ends of the cover, and the mounting plates are L-shaped. The surfaces of the two mounting plates are provided with first clearance grooves. Each of the first clearance grooves contains a fixing structure. The fixing structure includes a fixing shaft mounted within the first clearance groove. A clamping plate is rotatably connected to the fixing shaft. A pressure plate is connected to the other end of the clamping plate. The end of the pressure plate away from the clamping plate is inclined upwards. The connection between the pressure plate and the clamping plate is arc-shaped, and the pressure plate and clamping plate are integrally formed. The fixing shaft passes through the connection between the pressure plate and the clamping plate, allowing the clamping plate to rotate on the fixing shaft. The pressure plate is provided with two second clearance grooves, each equipped with a torsion spring. The torsion spring is fitted onto the surface of the fixing shaft. One end of the torsion spring is connected to the first clearance groove, and the other end is connected to one side of the pressure plate, so that the pressure plate compresses the torsion spring when it rotates downwards.

2. The structure for preventing accidental closing and opening of a miniature circuit breaker according to claim 1, characterized in that: The surface of the clamping plate is provided with anti-slip blocks.

3. A structure for preventing accidental closing and opening of a miniature circuit breaker according to claim 1 or 2, characterized in that: The cover has a C-shaped structure.

4. A structure for preventing accidental closing and opening of a miniature circuit breaker according to claim 1 or 2, characterized in that: The two mounting plates have warning areas on their surfaces, and the warning areas have warning signs.

5. The structure for preventing accidental closing and opening of a miniature circuit breaker according to claim 2, characterized in that: The anti-slip block is made of rubber.

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