A closing ready signal device for a circuit breaker operating mechanism

Abstract

A circuit breaker operating mechanism closing ready signal device, comprising a pair of mechanism side plates (1) arranged face to face, a switch-off half-shaft (2) mounted on the pair of mechanism side plates (1) via a fulcrum shaft (3) and capable of rotating around the fulcrum shaft (3), a switch-off indicator (4) mounted on the pair of mechanism side plates (1) via a shaft (5) and capable of rotating around the shaft (5), characterized in that: during the rotation of the switch-off half-shaft (2), the switch-off indicator (4) can be linked with a micro switch (6) to realize the connection or disconnection of the micro switch (6), during the rotation of the switch-off indicator (4), the switch-off indicator (4) can be linked with a micro switch (7) to realize the connection or disconnection of the micro switch (7), and the micro switch (6) and the micro switch (7) are connected in series via a wire (L). The entire device has a simple structure and is reliable to use, and can achieve the purpose of signal output without occupying user end resources and without damaging the strength of the mechanism side plates themselves.

Description

Technical Field

[0001] The invention belongs to the technical field of circuit breakers, and in particular relates to a closing ready signal device of a circuit breaker operating mechanism. Background Art

[0002] In the field of low-voltage electrical appliances, the closing-ready signal of universal circuit breakers has become more and more commonly used. Users use the closing-ready signal to remotely determine whether the operating mechanism of the circuit breaker can close. The circuit breaker operating mechanism must meet three conditions at the same time to be able to close, namely: energy storage state, opening state, and opening half-axis reset state (undervoltage power-on and controller actuator reset). The actual operation of the circuit breaker operating mechanism has the following five states: 1. Energy storage state, opening state, opening half-axis reset state; 2. Energy storage state, opening state, opening half-axis not reset (undervoltage power-off or controller actuator not reset); 3. Energy storage state, closing state, opening half-axis reset state; 4. Energy release state, closing state, opening half-axis reset state; 5. Energy release state, opening state, opening half-axis not reset state.

[0003] The conventional closing ready signal device usually adopts the following two methods: 1. Using a balance arm of the aircraft frame of the traditional operating mechanism structure to toggle the micro switch to achieve signal output; 2. Using the operating mechanism's opening half-axis to toggle the signal output by the micro switch and simultaneously connect a group of auxiliary contacts in series to achieve conversion.

[0004] However, the above-mentioned existing closing ready signal device has technical defects. The disadvantage of the first method is the defect caused by the structure of the aircraft frame itself. The aircraft frame has a balance arm that needs to extend from a slot on the right side plate of the mechanism to control the balance of the aircraft frame during movement. At the same time, the balance arm of the aircraft frame is used to toggle the micro switch to achieve signal output. With the improvement of various short-term breaking and endurance indicators of circuit breakers, the diameter of the shaft becomes thicker and thicker, while the thickness of the shaft slot on the side plate of the mechanism and the slot of the balance arm of the aircraft frame is getting smaller, and the strength of the side plate of the mechanism is weakened. When used, it may become unreliable due to the weakening of the strength of the side plate of the mechanism; the disadvantage of the second method is that it needs to occupy a set of auxiliary signals on the user end, the user's usage options become fewer, and user satisfaction decreases. Summary of the invention

[0005] The purpose of the present invention is to provide a circuit breaker operating mechanism closing ready signal device for the technical defects of the above-mentioned existing closing ready signal device, which is unreliable or requires a group of auxiliary signals at the user end due to the weakening of the strength of the mechanism side plate, and does not reduce the strength of the mechanism side plate, nor does it occupy the auxiliary signals at the user end. By installing two micro switches on the mechanism side plate, the opening half shaft toggles a micro switch, and the closing and opening indicator toggles a micro switch, and the closing ready signal is output by connecting two micro switches in series. The whole device has a simple structure and is reliable to use. It does not occupy the resources of the user end and does not damage the strength of the mechanism side plate itself to achieve the purpose of signal output.

[0006] Technical Solution

[0007] In order to achieve the above technical objectives, the present invention is a circuit breaker operating mechanism closing ready signal device, which includes a pair of mechanism side plates arranged face to face, the opening half-shaft is mounted on the pair of mechanism side plates through a fulcrum shaft one and can rotate around the fulcrum shaft one, and the closing and opening indicator is mounted on the pair of mechanism side plates through an axis one and can rotate around the axis one, characterized in that: during the rotation of the opening half-shaft, it can be linked with microswitch one to realize the connection or disconnection of microswitch one, and during the rotation of the closing and opening indicator, it can be linked with microswitch two to realize the connection or disconnection of microswitch two, and the microswitch one and microswitch two are connected in series through a wire.

[0008] Further, the opening half shaft is connected to a torsion spring, and the torsion spring has a tendency to make the opening half shaft rotate counterclockwise, and the micro switch can be triggered to turn on during the counterclockwise rotation of the opening half shaft, and the stroke of the opening half shaft can be limited by a limit part on the side plate of the mechanism during the counterclockwise rotation of the opening half shaft;

[0009] The double-blade lever is installed between the pair of mechanism side plates through the fulcrum shaft 2 and can rotate around the fulcrum shaft 2. During the rotation of the double-blade lever, the opening half shaft can be prevented from rotating to trigger the micro switch 1;

[0010] The switch-on / off indicator is connected to a tension spring, and the tension spring has a tendency to make the switch-on / off indicator rotate clockwise. The switch-on / off indicator can trigger the micro switch 2 7 to turn on during the clockwise rotation. The switch-on / off indicator can be limited in stroke by the limit part 2 on the side plate of the mechanism during the clockwise rotation.

[0011] The cantilever is mounted on the mechanism shaft and can rotate together with the mechanism shaft. The clockwise rotation of the cantilever can drive the closing and opening indicator to rotate counterclockwise to disengage from the second micro switch.

[0012] Furthermore, the torsion spring uses shaft two as a fulcrum, one end of the torsion spring abuts against shaft three on the side plate of the mechanism, and the other end abuts against the opening half shaft.

[0013] Preferably, the limiting portion 1 is a hole wall of a limiting hole 1 located on the side plate of the mechanism, the lever provided on the opening half-shaft extends into the limiting hole 1, and the lever corresponds to a trigger arm 1 of the micro switch 1.

[0014] Furthermore, a limit groove is provided on the opening half shaft, and a section corresponding to the limit groove is provided on the double-blade lever. During the rotation of the double-blade lever, the section can resist the limit groove so that the opening half shaft cannot trigger micro switch 1.

[0015] Preferably, one end of the tension spring is mounted on the shaft four on the side plate of the mechanism, and the other end is mounted on the closing and opening indicator.

[0016] Preferably, the second limiting portion is an axis five mounted on the side plate of the mechanism, the axis five extends into the corresponding limiting hole two on the closing and opening indicator, and the trigger axis on the closing and opening indicator corresponds to the trigger arm two of the second microswitch.

[0017] Furthermore, during the rotation of the cantilever, the travel can be limited by the limit shaft on the side plate of the mechanism.

[0018] Furthermore, the pair of mechanism side plates are connected by a limiting shaft and a connecting shaft.

[0019] Preferably, the micro switch 1 and / or the micro switch 2 is installed on the left side or the right side of the pair of mechanism side plates 1 .

[0020] Beneficial Effects

[0021] The present invention provides a circuit breaker operating mechanism closing ready signal device, which does not reduce the strength of the mechanism side plate and does not occupy the auxiliary signal of the user end. By installing two micro switches on the mechanism side plate, the opening half shaft toggles one micro switch, and the closing and opening indicator toggles another micro switch, and the closing ready signal is output by connecting two micro switches in series. The whole device has a simple structure and is reliable to use. It does not occupy the resources of the user end and does not damage the strength of the mechanism side plate itself to achieve the purpose of signal output. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Attached Figure 1 This is a schematic diagram of micro switch 1 and micro switch 2 installed on the side plate of the mechanism in Example 1 of the present invention;

[0023] Attached Figure 2 It is a structural schematic diagram of the opening energy storage and the opening half-axis reset of the operating mechanism in Embodiment 1 of the present invention;

[0024] Attached Figure 3 It is a structural schematic diagram of the closing (energy storage or energy release) and opening half-axis reset of the operating mechanism in Embodiment 1 of the present invention;

[0025] Attached Figure 4 It is a structural schematic diagram of the operating mechanism in Embodiment 1 of the present invention, in which the opening brake releases energy and the opening brake half-shaft is not reset;

[0026] Attached Figure 5 It is a structural schematic diagram of the operating mechanism in Embodiment 1 of the present invention, in which the opening switch is storing energy and the opening switch half-axis is not reset;

[0027] Attached Figure 6 This is a schematic diagram of the structure of the opening half-shaft in Embodiment 1 of the present invention;

[0028] Attached Figure 7 It is a schematic diagram of the structure of the closing and opening indicator in Example 1 of the present invention. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] Example 1

[0031] As attached Figure 1 and 2 As shown, a closing ready signal device of a circuit breaker operating mechanism comprises a pair of mechanism side plates 1 arranged face to face, and the pair of mechanism side plates 1 are connected by a limit shaft 17 and a connecting shaft 18. The opening half shaft 2 is mounted on the pair of mechanism side plates 1 through a fulcrum shaft 13 and can rotate around the fulcrum shaft 13, and the closing and opening indicator 4 is mounted on the pair of mechanism side plates 1 through a shaft 15 and can rotate around the shaft 15. During the rotation of the opening half shaft 2, it can be linked with a micro switch 16 to realize the connection or disconnection of the micro switch 16, and during the rotation of the closing and opening indicator 4, it can be linked with a micro switch 27 to realize the connection or disconnection of the micro switch 27, and the micro switch 16 and the micro switch 27 are connected in series through a wire. In this embodiment, the micro switch 16 and the micro switch 27 are installed on the left side of the pair of mechanism side plates 1.

[0032] The opening half shaft 2 is connected to the torsion spring 8. In this embodiment, the torsion spring 8 uses the shaft 2 14 as a fulcrum, one end of the torsion spring 8 abuts against the shaft 3 15 on the mechanism side plate 1, and the other end abuts against the opening half shaft 2.

[0033] The torsion spring 8 has a tendency to cause the opening half-shaft 2 to rotate counterclockwise, and the opening half-shaft 2 can trigger the microswitch 6 to turn on during the counterclockwise rotation. The opening half-shaft 2 can be limited in stroke by the limiting portion 101 on the mechanism side plate 1 during the counterclockwise rotation. Specifically, in this embodiment, the limiting portion 101 is the hole wall of a limiting hole 101a located on the mechanism side plate 1, and the lever 201 provided on the opening half-shaft 2 extends into the limiting hole 101a, and the lever 201 corresponds to the trigger arm 601 of the microswitch 6.

[0034] The double-blade lever 9 is installed between the pair of mechanism side plates 1 through the fulcrum shaft 2 10 and can rotate around the fulcrum shaft 2 10. During the rotation of the double-blade lever 9, the opening half shaft 2 can be prevented from rotating to trigger the micro switch 1 6; specifically, as shown in the attached Figure 6 As shown, in this embodiment, a limit groove 202 is provided on the opening half shaft 2, and a cut surface 901 corresponding to the limit groove 202 is provided on the double-blade lever 9. During the rotation of the double-blade lever 9, the cut surface 901 can resist the limit groove 202 so that the opening half shaft cannot trigger the micro switch 6.

[0035] The switch-on / off indicator 4 is connected to a tension spring 11, one end of which is mounted on the shaft 16 on the side plate 1 of the mechanism, and the other end is mounted on the switch-on / off indicator 4. The tension spring 11 has a tendency to cause the switch-on / off indicator 4 to rotate clockwise, and the micro switch 27 can be triggered to turn on during the clockwise rotation of the switch-on / off indicator 4. The switch-on / off indicator 4 can be limited in stroke by the limiting part 102 on the side plate 1 of the mechanism during the clockwise rotation; specifically, the limiting part 102 is the shaft 102a mounted on the side plate 1 of the mechanism, and the shaft 102a extends into the corresponding limiting hole 401 on the switch-on / off indicator 4, as shown in the attached figure. Figure 7 As shown, the trigger shaft 402 on the closing and opening indicator 4 corresponds to the trigger arm 2 701 of the micro switch 2 7 .

[0036] The cantilever 12 is mounted on the mechanism shaft 13 and can rotate together with the mechanism shaft 13. During the rotation of the cantilever 12, the travel can be limited by the limit shaft 17 on the mechanism side plate 1. The clockwise rotation of the cantilever 12 can drive the closing and opening indicator 4 to rotate counterclockwise to disengage from the micro switch 2 7.

[0037] The working principle of this embodiment is as follows: Figure 2As shown, when the operating mechanism is in the opening, energy storage, and opening half-axis reset state: the cut surface 901 of the double-blade lever 9 is below the opening half-axis 2, and the opening half-axis 2 rotates counterclockwise under the action of the torsion spring 8, and its lever 201 contacts the mechanism side plate 1, and the opening half-axis 2 reaches the reset state, and the lever 201 of the opening half-axis 2 toggles the touch arm 1601 of the micro switch 16, so that the micro switch 16 is switched. The closing and opening indicator 4 rotates clockwise under the action of the tension spring 11, and the closing and opening indicator 4 stops rotating after contacting the shaft 5 102a, and the touch shaft 402 of the closing and opening indicator 4 toggles the touch arm 2701 of the micro switch 27, so that the micro switch 27 is switched. The micro switch 16 and the micro switch 27 are switched at the same time, and the switching signal is output after being connected in series through the wire L. The switching signal output by the mechanism in this state is the required closing ready signal.

[0038] As attached Figure 3 As shown, when the operating mechanism is in the process of closing, storing or releasing energy, and resetting the opening half-shaft 2: the cut surface 901 of the double-blade lever 9 is below the opening half-shaft 2, and the opening half-shaft 2 rotates counterclockwise under the action of the torsion spring 8, and its lever 201 contacts the mechanism side plate 1 to reach the reset state of the opening half-shaft 2, and the lever 201 of the opening half-shaft 2 toggles the trigger arm 1601 of the micro switch 16, so that the micro switch 16 is switched. The mechanism shaft 13 rotates clockwise, and its cantilever 12 contacts the closing and opening indicator 4, so that the closing and opening indicator 4 overcomes the reaction force of the tension spring 11 and rotates counterclockwise, and the trigger shaft 402 of the closing and opening indicator 4 does not contact the trigger arm 2701 of the micro switch 27, and the micro switch 27 is not switched. The micro switch 16 is switched, and the micro switch 27 is not switched, and no switching signal is output after being connected in series through the wire L.

[0039] As attached Figure 4 As shown, when the operating mechanism is in the state of opening, releasing energy, and the opening half shaft 2 is not reset: the cut surface 901 of the double-blade lever 9 is between the limit groove 202 of the opening half shaft 2, the limit groove 202 of the opening half shaft 2 contacts the cut surface 901 of the double-blade lever 9 and cannot be reset, the lever 201 of the opening half shaft 2 does not contact the trigger arm 1601 of the micro switch 16, and the micro switch 16 does not switch. The closing and opening indicator 4 rotates clockwise under the action of the tension spring 11, and the closing and opening indicator 4 stops rotating after contacting the shaft 5 102a, and the trigger shaft 402 of the closing and opening indicator 4 switches the trigger arm 2 701 of the micro switch 2 7, so that the micro switch 2 7 switches. The micro switch 1 6 does not switch, the micro switch 2 7 switches, and no switching signal is output after being connected in series through the wire L.

[0040] As attached Figure 5As shown, when the operating mechanism is in the opening state, energy storage state, and the opening half shaft 2 is not reset: the cut surface 901 of the double-blade lever 9 is below the opening half shaft 2, and the opening half shaft 2 rotates counterclockwise under the action of the torsion spring 8, but because the controller actuator is not reset or the undervoltage release is not energized, the opening half shaft 2 is blocked and not reset, and the lever 201 of the opening half shaft 2 does not contact the trigger arm 1601 of the micro switch 16, and the micro switch 16 does not switch. The closing and opening indicator 4 rotates clockwise under the action of the tension spring 11, and the closing and opening indicator 4 stops rotating after contacting the shaft 5 102a, and the trigger shaft 402 of the closing and opening indicator 4 switches the trigger arm 2 701 of the micro switch 2 7, so that the micro switch 2 7 switches. The micro switch 1 6 does not switch, and the micro switch 2 7 switches. After being connected in series through the wire L, no switching signal is output.

[0041] Therefore, this structure enables the operating mechanism to output a conversion signal only when the switch is opened, energy is stored, or the opening half-axis is reset, which meets the requirement that the operating mechanism can close the switch. The structure of the entire device is simple and reliable to use. It does not occupy user-end resources and can achieve the purpose of signal output without destroying the strength of the mechanism side panel itself.

[0042] Example 2

[0043] The present invention also provides an embodiment in which the micro switch 1 6 and the micro switch 2 7 are installed on the right side of the pair of mechanism side plates 1. The working principle is the same as that of the first embodiment and will not be further described here.

[0044] Example 3

[0045] Another embodiment provided by the present invention is that the micro switch 1 6 or the micro switch 2 7 is installed on the left or right side of the corresponding pair of mechanism side plates 1. The working principle is the same as that of the first embodiment and will not be further described here.

[0046] The structures, proportions, sizes, quantities, etc. illustrated in the accompanying drawings of the embodiments of the present invention are only used to match the contents disclosed in the specification so as to be understood and read by those familiar with the technology, and are not used to limit the limiting conditions that the present invention can be implemented, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects that the present invention can produce and the purposes that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle", "clockwise", "counterclockwise", etc. cited in this specification are only for the convenience of narration, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

Claims

1. A circuit breaker operating mechanism closing ready signal device, comprising a pair of mechanism side plates (1) arranged face to face, a switch opening half-shaft (2) mounted on the pair of mechanism side plates (1) via a fulcrum shaft (3) and capable of rotating around the fulcrum shaft (3), a switch closing and opening indicator (4) mounted on the pair of mechanism side plates (1) via a shaft (5) and capable of rotating around the shaft (5), characterized in that: During the rotation of the opening half shaft (2), the micro switch 1 (6) can be linked to realize the connection or disconnection of the micro switch 1 (6); during the rotation of the closing and opening indicator (4), the micro switch 2 (7) can be linked to realize the connection or disconnection of the micro switch 2 (7); the micro switch 1 (6) and the micro switch 2 (7) are connected in series via a wire (L); The opening half shaft (2) is connected to a torsion spring (8), and the torsion spring (8) has a tendency to make the opening half shaft (2) rotate counterclockwise. During the counterclockwise rotation of the opening half shaft (2), the micro switch 1 (6) can be triggered to turn on. During the counterclockwise rotation of the opening half shaft (2), the travel of the opening half shaft (2) can be limited by a limiting part 1 (101) on the side plate (1) of the mechanism; The double-blade lever (9) is mounted between the pair of mechanism side plates (1) via a fulcrum shaft 2 (10) and is capable of rotating around the fulcrum shaft 2 (10). During the rotation of the double-blade lever (9), the opening half shaft (2) can be prevented from rotating to trigger a micro switch 1 (6); The switch-on / off indicator (4) is connected to a tension spring (11), and the tension spring (11) has a tendency to make the switch-on / off indicator (4) rotate clockwise. During the clockwise rotation of the switch-on / off indicator (4), the micro switch 2 (7) can be triggered to turn on. During the clockwise rotation of the switch-on / off indicator (4), the travel of the switch-on / off indicator (4) can be limited by the limiting part 2 (102) on the side plate (1) of the mechanism. The cantilever (12) is mounted on the mechanism rotating shaft (13) and can rotate together with the mechanism rotating shaft (13). The clockwise rotation of the cantilever (12) can drive the closing and opening indicator (4) to rotate counterclockwise to disengage from the second micro switch (7).

2. A circuit breaker operating mechanism closing ready signal device as claimed in claim 1, characterized in that: The torsion spring (8) uses the second shaft (14) as a fulcrum, one end of the torsion spring (8) abuts against the third shaft (15) on the side plate (1) of the mechanism, and the other end abuts against the opening half shaft (2).

3. A circuit breaker operating mechanism closing ready signal device as claimed in claim 1, characterized in that: The limiting portion 1 (101) is a hole wall of a limiting hole 1 (101a) located on the side plate (1) of the mechanism, and a lever (201) provided on the opening half shaft (2) extends into the limiting hole 1 (101a), and the lever (201) corresponds to a trigger arm 1 (601) of the micro switch 1 (6).

4. A circuit breaker operating mechanism closing ready signal device as claimed in claim 1, characterized in that: The opening half shaft (2) is provided with a limit groove (202), and the double-blade lever (9) is provided with a cut surface (901) corresponding to the limit groove (202). During the rotation of the double-blade lever (9), the cut surface (901) can abut against the limit groove (202) so that the opening half shaft cannot trigger the micro switch 1 (6).

5. The circuit breaker operating mechanism closing ready signal device according to claim 1, characterized in that: One end of the tension spring (11) is mounted on the shaft four (16) on the mechanism side plate (1), and the other end is mounted on the switch closing and opening indicator (4).

6. A circuit breaker operating mechanism closing ready signal device as claimed in claim 1, characterized in that: The second limiting portion (102) is a fifth axis (102a) mounted on the side plate (1) of the mechanism, and the fifth axis (102a) extends into a corresponding second limiting hole (401) on the closing / opening switch indicator (4), and the actuating axis (402) on the closing / opening switch indicator (4) corresponds to the actuating arm (701) of the second micro switch (7).

7. A circuit breaker operating mechanism closing ready signal device as claimed in claim 1, characterized in that: During the rotation of the cantilever (12), the travel distance can be limited by the limiting shaft (17) on the side plate (1) of the mechanism.

8. A circuit breaker operating mechanism ready-to-close signal device as claimed in claim 1, characterized in that: The pair of mechanism side plates (1) are connected by means of a limiting shaft (17) and a connecting shaft (18).

9. A circuit breaker operating mechanism closing ready signal device as claimed in claim 1, characterized in that: The micro switch 1 (6) and / or the micro switch 2 (7) are installed on the left side or the right side of the pair of mechanism side plates (1).

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