Operating mechanism to prevent accidental closing of circuit breakers

Abstract

An operating mechanism capable of preventing a circuit breaker from closing by mistake, comprising an energy storage indicator, a switch-on / off indicator, an undervoltage release judgment mechanism, an operating indicator, a closing half-shaft, a comprehensive judgment member and a driving elastic member, wherein the energy storage indicator, the switch-on / off indicator, the undervoltage release judgment mechanism, the operating indicator and the closing half-shaft cooperate with the comprehensive judgment member separately and without interfering with each other; when the energy storage indicator, the switch-on / off indicator and the undervoltage release judgment mechanism all release the limit on the comprehensive judgment member, the comprehensive judgment member slides to a position cooperating with the closing half-shaft under the action of the driving elastic member, and at the same time, the comprehensive judgment member enables the operating indicator to display that the operating mechanism can close. In the present invention, only when the energy storage indicator, the switch-on / off indicator and the undervoltage release judgment mechanism are all in a state where the circuit breaker can be closed, the comprehensive judgment member enables the operating indicator to display that the circuit breaker can be closed and cooperates with the closing half-shaft to close the circuit breaker, thereby preventing the circuit breaker from being closed by mistake.

Description

Technical Field

[0001] The invention relates to a closing indication mechanism of a circuit breaker operating mechanism, and in particular to an operating mechanism capable of preventing the circuit breaker from closing by mistake. Background Art

[0002] The operating mechanism is used to close or open the main contacts of the circuit breaker. The closing of the main contacts is driven by the energy stored in the energy storage mechanism of the operating mechanism. For the operating mechanism, the following three conditions must be met before the closing action can be performed: First, the undervoltage release must be powered. If the undervoltage release has no power, the opening half-axis is in a tripped state. Then even if a closing command is issued, the operating mechanism will open at the moment of closing, resulting in a slipping phenomenon; second, the energy storage mechanism of the operating mechanism has completed energy storage. When the operating mechanism has not completed energy storage, even if a closing command is issued, the closing cannot be completed due to the inability to release energy; third, the circuit breaker is in the disconnected position. When the circuit breaker is already in the closed position, issuing a closing command will cause the operating mechanism to be hit again with great force at the already closed position, which will affect the mechanical strength of the entire mechanism.

[0003] In the prior art products, there is a closable indication structure that can prompt the operating mechanism to close the switch. This closable indication structure directly cooperates with the opening indicator, the energy storage indicator, and the undervoltage trip judgment device to obtain a closable signal, thereby indicating the closable state when the opening indicator, the energy storage indicator, and the undervoltage trip judgment device send out closable signals at the same time. However, this structure has the following defects: although this mechanism can determine whether the operating mechanism is in a closable state, it cannot prevent the operating mechanism from performing an erroneous closing operation when the operating mechanism is in a non-closable state, and cannot effectively play a protective role, so it is necessary to add an additional anti-misclosing device, but this misclosing device needs to cooperate with the opening indicator, the energy storage indicator, and the undervoltage trip judgment device respectively, which occupies a large space and is prone to the phenomenon that the closable indicator and the anti-misclosing device are not synchronized. Summary of the invention

[0004] The object of the present invention is to overcome the defects of the prior art and provide an operating mechanism which occupies a small space and has high compatibility and can prevent the circuit breaker from closing by mistake.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An operating mechanism capable of preventing a circuit breaker from closing by mistake, comprising an energy storage indicator for indicating the energy storage state of an energy storage member, an opening and closing indicator for indicating the position of a main contact, an undervoltage release judging mechanism for judging the state of an undervoltage release, and an operating indicator for displaying whether the operating mechanism can close the circuit, and a closing half-shaft for realizing the closing of the main contact, and further comprising a comprehensive judging member and a driving elastic member connected to the comprehensive judging member, wherein the energy storage indicator, the opening and closing indicator, the undervoltage release judging mechanism, the operating indicator and the closing half-shaft cooperate with the comprehensive judging member separately and without interfering with each other;

[0007] The energy storage indicator limits the comprehensive judgment component when it indicates that energy storage is not completed, and releases the limit on the comprehensive judgment component when it indicates that energy storage is completed; the opening and closing indicator limits the comprehensive judgment component when it indicates that the main contact is not disconnected, and releases the limit on the comprehensive judgment component when it indicates that the main contact is disconnected; the undervoltage release judgment mechanism limits the comprehensive judgment component when the undervoltage release is in an abnormal working state, and releases the limit on the comprehensive judgment component when the undervoltage release is in a normal working state;

[0008] When the energy storage indicator, the opening and closing indicator, and the undervoltage release judgment mechanism all release the limit on the comprehensive judgment member, the comprehensive judgment member slides to a position cooperating with the closing half-axis under the action of the driving elastic member so that the circuit breaker can be closed. At the same time, the comprehensive judgment member can make the operation indicator display that the operating mechanism can be closed.

[0009] Furthermore, the comprehensive judgment component is slidably arranged on the side plate of the operating mechanism, and the comprehensive judgment component is located below the opening half-axis of the undervoltage release judgment mechanism. When the energy storage indicator, the opening and closing indicator, and the undervoltage release judgment mechanism all release the limit on the comprehensive judgment component, the comprehensive judgment component slides to a position cooperating with the closing half-axis under the action of the driving elastic component, and the operating indicator can display that the operating mechanism can be closed.

[0010] Further, the comprehensive judgment component is arranged between the energy storage indicator, the opening and closing indicator, the undervoltage release judgment mechanism and the operation indicator, and the comprehensive judgment component includes a first matching portion respectively matched with the energy storage indicator and the opening and closing indicator, a second matching portion matched with the undervoltage release judgment mechanism, a third matching portion matched with the closing half shaft, and a fourth matching portion matched with the operation indicator;

[0011] After the first matching part and the second matching part are released from the limit matching, the comprehensive judgment part slides to a position where it can match with the closing half-shaft under the action of the driving elastic part and enables the third matching part of the comprehensive judgment part to match with the closing half-shaft. During the sliding process of the comprehensive judgment part, the fourth matching part releases the limit on the operating indicator part, so that the operating indicator part displays that the operating mechanism can close the switch.

[0012] Furthermore, it includes two opposite side plates, an energy storage indicator, a switch-opening and closing indicator, an operation indicator, a closing half-shaft and a switch-opening half-shaft are arranged between the two side plates, and the switch-opening and closing indicator, the operation indicator and the energy storage indicator are all rotatably installed in parallel below the closing half-shaft in sequence; a cam that cooperates with the energy storage indicator is rotatably installed on the side close to the energy storage indicator; a rotating shaft of an operating mechanism is provided below the switch-opening and closing half-shaft, the rotating shaft passes through the two side plates and an indicator cantilever that cooperates with the switch-opening and closing indicator is rotatably installed on the rotating shaft; a slide groove is provided on the side plate, and a supporting member that cooperates with the slide groove is provided on the comprehensive judgment member, and after the energy storage indicator, the switch-opening and closing indicator and the undervoltage release judgment mechanism are all released from the limit cooperation with the comprehensive judgment member, the driving elastic member enables one end of the comprehensive judgment member to slide to the top of the switch-closing half-shaft, and the other end of the comprehensive judgment member slides between the rotating shaft and the switch-opening half-shaft.

[0013] Further, the energy storage indicator comprises a first rocker arm which is rotatably mounted and provided with an energy storage indication identification portion, a cam is rotatably mounted on one side of the first rocker arm, the cam is linked with the energy storage mechanism, a first convex arm protruding outward is provided on one side of the first rocker arm, a slot is provided on the circumferential edge of the cam, and the first convex arm can be fitted into the slot of the cam when sliding along the circumferential edge of the cam; a second convex arm is provided on the other side of the first rocker arm, and the second convex arm is used to cooperate with the first matching portion;

[0014] When the energy storage indicator shows that energy storage is not completed, the first protruding arm cooperates with the edge of the cam to prevent the first rocker arm from rotating and causes the second protruding arm to abut against the first matching portion to maintain a limited fit; when the energy storage indicator shows that energy storage is completed, the first protruding arm is inserted into the slot of the cam, the rocker arm rotates with the cam, and the second protruding arm separates from the first matching portion as the first rocker arm rotates to release the limited fit.

[0015] Further, the opening and closing indicator comprises a second rocker arm which is rotatably mounted and provided with an opening and closing indicator identification portion, an indicator cantilever is rotatably mounted on one side of the second rocker arm, the indicator cantilever is mounted on a rotating shaft between the side plates for driving the main contact to close, a first action portion and a second action portion are provided at one end of the second rocker arm, and a third action portion is provided on the indicator cantilever;

[0016] When the circuit breaker is closed, the shaft rotates to drive the main contact to close, and at the same time, the cantilever of the indicator rotates, and the third acting part of the cantilever of the indicator drives the opening and closing indicator to rotate through the second acting part to indicate closing. When the opening and closing indicator indicates that the main contact is closed, the second acting part abuts against the third acting part so that the second rocker arm cannot rotate and the first acting part abuts against the first matching part to maintain the limit match; when the circuit breaker is opened, the shaft drives the cantilever of the indicator to rotate in the opposite direction, and the third acting part separates from the second acting part to indicate opening. When the opening and closing indicator indicates that the main contact is disconnected, the second acting part separates from the third acting part, and the second rocker arm rotates to separate the first acting part from the first matching part to release the limit match.

[0017] Furthermore, the undervoltage release judgment mechanism includes a rotatably mounted opening half-shaft, on which a trip finger and a protruding limit boss are provided;

[0018] When the undervoltage releaser has no power, the tripping finger of the opening half-shaft is pressed down by the undervoltage releaser, and the limit boss abuts against the second matching part to maintain the limit fit; when the undervoltage releaser has power, the undervoltage releaser is electrically attracted and does not press down the opening half-shaft, and the tripping finger of the opening half-shaft resets and rotates to separate the limit boss from the second matching part to release the limit fit.

[0019] Furthermore, the operation indicator member includes a fourth rocker arm, the middle part of which is rotatably supported in the side plate, one end of the fourth rocker arm serves as an operation indicator mark, and the other end of the fourth rocker arm serves as a connecting end that cooperates with the side plate through the second driving member, and the connecting end of the fourth rocker arm is limitedly cooperated with the fourth matching portion; after the first matching portion and the second matching portion are released from the limited cooperation, the comprehensive judgment member moves between the side plates under the action of the driving elastic member so that the third matching portion can cooperate with the closing half shaft, and at the same time, during the movement of the comprehensive judgment member, the operation indicator member, under the joint action of the fourth matching portion and the second driving member, causes the operation indicator mark to rotate to indicate that the operation can be performed.

[0020] Further, the comprehensive judgment component includes a rod body, one end of the rod body has a straight edge, the straight edge serves as a first matching part of the comprehensive judgment component, and the energy storage indicator and the opening and closing indicator are individually limited and matched with the first matching part; the other end of the rod body is the tail of the comprehensive judgment component, and the rod body between the first matching part and the tail is provided with a driving part connected to the driving elastic part; an arc-shaped protrusion is provided on one side of the rod body close to the tail as a second matching part, and the second matching part is used for limited matching with the undervoltage release judgment mechanism; a protruding structure as a third matching part is provided on the upper side of the first matching part, and the third matching part is used for matching with the closing half shaft, and an extension part for matching with the closing button is provided on the third matching part; a protruding structure as a fourth matching part is provided on one side of the middle part of the rod body, and the fourth matching part is used for matching with the operation indicator.

[0021] Furthermore, it includes two opposite side panels, each of which is provided with a sliding groove that slidably cooperates with the comprehensive judgment member, and a rod-shaped structure is protruded on the side of the second matching portion as a support member, and the support member is slidably cooperated with the sliding groove, and the support member is used to cooperate with the micro switch on the outer wall of the side panel to output an electrical signal of the opening and closing state; when the energy storage indicator, the opening and closing indicator and the undervoltage release judgment mechanism are all in a closing state, the comprehensive judgment member causes the support member to slide along the sliding groove of the side panel under the drive of the driving elastic member.

[0022] Furthermore, the end of the slide slot close to the closing half-shaft is larger than the other end, so that the support member can rotate at the end of the slide slot close to the closing half-shaft, but cannot rotate at the end away from the closing half-shaft.

[0023] Furthermore, arc-shaped protrusions are provided on both sides of the rod body of the comprehensive judgment component near the tail as the second matching part, and the side edges of the rod body between the arc-shaped protrusions on both sides are used to extend into the open groove on the opening half-axis of the undervoltage release judgment mechanism.

[0024] Furthermore, the tail of the rod body of the comprehensive judgment component is provided with a contact portion protruding downward, and the opening and closing indicator includes a second rocker arm rotatably installed and provided with an opening and closing indication mark, and an indicator cantilever is rotatably installed on one side of the second rocker arm.

[0025] Furthermore, two limiting bosses are provided on the opening brake half-shaft, and the two limiting bosses form an open groove on one side of the opening brake half-shaft close to the comprehensive judgment member, and the corresponding upper side edge of the comprehensive judgment member extends into the open groove for limiting.

[0026] The operating mechanism capable of preventing the circuit breaker from being mistakenly closed is provided with a comprehensive judgment component between the energy storage indicator, the opening and closing indicator, the undervoltage release judgment mechanism and the operating indicator. Only when the energy storage indicator, the opening and closing indicator and the undervoltage release judgment mechanism are all in a closing state, the comprehensive judgment component can make the operating indicator display that the circuit can be closed, and the comprehensive judgment component cooperates with the closing half-axis to enable the closing operation to be performed. In this way, the comprehensive judgment component can prevent the circuit breaker from being mistakenly closed at the same time, so there is no need to additionally assemble an anti-misclosing device, and there will be no phenomenon that the operating indicator and the comprehensive judgment component are out of sync.

[0027] In addition, the layout structure of the comprehensive judgment component located between the energy storage indicator, the opening and closing indicator, the undervoltage release judgment mechanism and the operation indicator is tightly arranged and occupies a small space.

[0028] In addition, a slide groove is provided on the side panel inside the shell, which slides with the support member of the comprehensive judgment member, so that the comprehensive judgment member can cooperate with the micro switch provided on the side panel at the same time, and output the electrical signal of the opening and closing state through the micro switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an operating mechanism capable of preventing a circuit breaker from closing by mistake in the present invention;

[0030] Figure 2 yes Figure 1 Exploded diagram of

[0031] Figure 3-Figure 4 It is a structural schematic diagram of an energy storage indicator and a comprehensive judgment component in an operating mechanism capable of preventing a circuit breaker from closing by mistake in the present invention;

[0032] Figure 5-Figure 6 It is a structural schematic diagram of a switch-on / off indicator and a comprehensive judgment component in an operating mechanism capable of preventing a circuit breaker from closing by mistake in the present invention;

[0033] Figure 7 It is a structural schematic diagram of an undervoltage release judgment mechanism and a comprehensive judgment component in an operating mechanism capable of preventing a circuit breaker from closing by mistake in the present invention;

[0034] Figure 8-Figure 9 It is a structural schematic diagram of an operation indicator and a comprehensive judgment component in an operating mechanism capable of preventing a circuit breaker from closing by mistake in the present invention;

[0035] Fig.10 The present invention is a schematic structural diagram of a comprehensive judgment component in an operating mechanism capable of preventing a circuit breaker from closing in error. DETAILED DESCRIPTION

[0036] The following is combined with Figures 1 to 10 The given embodiments further illustrate the specific implementation of the operating mechanism capable of preventing the circuit breaker from closing by mistake of the present invention. The operating mechanism capable of preventing the circuit breaker from closing by mistake of the present invention is not limited to the description of the following embodiments.

[0037] An operating mechanism capable of preventing a circuit breaker from closing by mistake, comprising an energy storage indicator 1 for indicating the energy storage state of an energy storage component, an opening and closing indicator 2 for indicating the position of a main contact, an undervoltage release judging mechanism 3 for judging the state of an undervoltage release, and an operating indicator 5 for displaying whether the operating mechanism can close the circuit, and a closing half-shaft 23 for realizing the closing of the main contact, and further comprising a comprehensive judging member 4 and a driving elastic member 61 connected to the comprehensive judging member 4, wherein the energy storage indicator 1, the opening and closing indicator 2, the undervoltage release judging mechanism 3, the operating indicator 5 and the closing half-shaft 23 cooperate with the comprehensive judging member 4 separately and without interfering with each other;

[0038] The energy storage indicator 1 limits the comprehensive judgment component 4 when it indicates that the energy storage is not completed, and releases the limit on the comprehensive judgment component 4 when it indicates that the energy storage is completed; the opening and closing indicator 2 limits the comprehensive judgment component 4 when it indicates that the main contact is not disconnected, and releases the limit on the comprehensive judgment component 4 when it indicates that the main contact is disconnected; the undervoltage release judgment mechanism 3 limits the comprehensive judgment component 4 when the working state of the undervoltage release is abnormal, and releases the limit on the comprehensive judgment component 4 when the working state of the undervoltage release is normal;

[0039] When the energy storage indicator 1, the opening and closing indicator 2, and the undervoltage release judgment mechanism 3 all release the limit on the comprehensive judgment member 4, the comprehensive judgment member 4 slides to a position cooperating with the closing half-shaft 23 under the action of the driving elastic member 61 so that the circuit breaker can perform a closing operation. At the same time, the comprehensive judgment member 4 is separated from the operation indicator 5, and the operation indicator 5 displays that the operating mechanism can close the circuit breaker under the action of the driving elastic member 62.

[0040] The operating mechanism capable of preventing the circuit breaker from being mistakenly closed is provided with a comprehensive judgment component 4 between the energy storage indicator 1, the opening and closing indicator 2, the undervoltage release judgment mechanism 3 and the operation indicator 5. Only when the energy storage indicator 1, the opening and closing indicator 2 and the undervoltage release judgment mechanism 3 are all in the closing state, the comprehensive judgment component 4 can give way to the operation indicator 5 so that it can be closed under the action of the driving elastic component 62, and the comprehensive judgment component 4 can cooperate with the closing half shaft 23 to perform the closing operation. In this way, the comprehensive judgment component 4 can also prevent the circuit breaker from being mistakenly closed, so there is no need to additionally assemble an anti-misclosing device, and there will be no phenomenon of the operation indicator and the comprehensive judgment component 4 being out of sync.

[0041] Combination Figure 1-9The figure shows an embodiment of an operating mechanism that can prevent the circuit breaker from closing by mistake, including a shell, in which an operating mechanism for operating the opening and closing of the main contacts and an operating indicator 5 for displaying whether the operating mechanism can close the circuit breaker are arranged, the operating mechanism including an energy storage indicator 1 for indicating the energy storage state of the energy storage member, an opening and closing indicator 2 for indicating the closed or open position of the main contact, an undervoltage release judgment mechanism 3 for judging the state of the undervoltage release, and a closing half-shaft 23 for operating the closing of the main contact, preferably a window for displaying the states of the energy storage indicator 1, the opening and closing indicator 2 and the operating indicator 5 is arranged on the shell; and a window for driving the energy storage indicator 1, the opening and closing indicator 2 and the undervoltage release judgment mechanism 3 is arranged between the energy storage indicator 1, the opening and closing indicator 2 and the undervoltage release judgment mechanism 3. The comprehensive judgment component 4 of the operating indicator 5 is provided with a driving part 45 and a plurality of matching parts, and a driving elastic part 61 for connecting with the shell is provided on the driving part 45, and the energy storage indicator 1, the opening and closing indicator 2, the opening half-shaft 31 of the undervoltage release judgment mechanism 3, the operating indicator 5 and the closing half-shaft 23 are respectively matched with the matching parts separately and without interfering with each other; when the energy storage indicator 1, the opening and closing indicator 2, and the undervoltage release judgment mechanism 3 are all in a closing state, the comprehensive judgment component 4 can slide in the shell to a position that can cooperate with the closing half-shaft 23 under the action of the driving elastic part 61, and at the same time, the comprehensive judgment component 4 makes way for the operating indicator 5 so that it displays that the operating mechanism can be closed under the action of the driving elastic part 62. It should be noted that only when the energy storage indicator 1, the opening and closing indicator 2, and the undervoltage release judgment mechanism 3 are all in the closing state, the comprehensive judgment component 4 can slide to the position that cooperates with the closing half-shaft 23, so that the circuit breaker can perform the closing operation when the closing button is pressed. In other states, the comprehensive judgment component 4 cannot slide to the position that cooperates with the closing half-shaft 23, and the closing operation cannot be performed. The comprehensive judgment component 4 slides to the position that cooperates with the closing half-shaft 23, and is linked between the closing button and the closing half-shaft 23, so that the closing button can drive the closing half-shaft 23 to rotate through the comprehensive judgment component 4 to trigger the closing; when the comprehensive judgment component 4 slides to the side away from the closing half-shaft 23, pressing the closing button cannot close the circuit. Of course, the closing button can act directly on the comprehensive judgment component 4, or it can act on the comprehensive judgment component 4 indirectly.

[0042] The comprehensive judgment component 4 is arranged between the energy storage indicator 1, the opening and closing indicator 2, the undervoltage release judgment mechanism 3 and the operation indicator 5, and the multiple matching parts of the comprehensive judgment component 4 include a first matching part 41 respectively matched with the energy storage indicator 1 and the opening and closing indicator 2, a second matching part 42 matched with the undervoltage release judgment mechanism 3, a third matching part 43 matched with the closing half shaft 23, and a fourth matching part 44 matched with the operation indicator 5. The layout structure of the comprehensive judgment component 4 located between the energy storage indicator 1, the opening and closing indicator 2, the undervoltage release judgment mechanism 3 and the operation indicator 5 is compactly arranged and occupies a small space.

[0043] like Figure 3-4 As shown, the energy storage indicator 1 includes a first rocker arm 11 provided with an energy storage indication mark. When the energy storage indicator 1 indicates that the energy storage is not completed (see Figure 3 ), the first matching portion 41 is limitedly matched with the energy storage indicator 1, and after the energy storage indicator 1 indicates that the energy storage is completed (see Figure 4 ), the first matching portion 41 releases the limiting matching with the energy storage indicator 1.

[0044] like Figure 5-6 As shown, the switch-on / off indicator 2 includes a second rocker arm 21 provided with a switch-on / off indicator mark. When the switch-on / off indicator 2 indicates that the main contact is not disconnected (see Figure 5 ), the first matching portion 41 is limitedly matched with the opening and closing indicator 2, when the opening and closing indicator 2 indicates that the main contact is disconnected (see Figure 6 ), the first matching portion 41 releases the limiting matching with the opening and closing indicator 2.

[0045] like Figure 6-7 As shown, the undervoltage release judgment mechanism 3 includes a switch-off half shaft 31. When the undervoltage release is out of power (see Figure 7 ), the second matching portion 42 is limitedly matched with the opening half shaft 31 of the undervoltage release judgment mechanism 3, when the undervoltage release is energized (see Figure 6 The second matching portion 42 releases the limit matching with the opening half shaft 31 of the undervoltage release judgment mechanism 3.

[0046] After the first matching portion 41 and the second matching portion 42 are released from the limit matching, the comprehensive judgment member 4 slides in the housing to a position where it can match with the closing half shaft 23 under the action of the driving elastic member 61, and the third matching portion 43 of the comprehensive judgment member 4 can match with the closing half shaft 23 (see Figure 6 , Fig. 9The third matching part 43 can cooperate with the closing half-shaft 23 to close the switch. During the sliding process of the comprehensive judgment member 4, the fourth matching part 44 makes way for the operating indicator 5 so that the operating indicator 5 shows that the operating mechanism can close the switch. It should be noted that the limiting cooperation between the energy storage indicator 1, the opening and closing indicator 2 and the first matching part 41 does not interfere with each other. The release of the limiting cooperation between the energy storage indicator 1 and the first matching part 41 does not affect the limiting cooperation between the opening and closing indicator 2 and the first matching part 41. Only when the energy storage indicator 1 and the opening and closing indicator 2 are released from the limiting cooperation with the first matching part 41, and the undervoltage release judgment mechanism 3 and the second matching part 42 are also released from the limiting cooperation, can the comprehensive judgment member 4 slide.

[0047] The layout structure of this embodiment is that the energy storage indicator 1, the opening and closing indicator 2, the operation indicator 5 and the closing half-shaft 23 are arranged on one side of the shell, and the closing half-shaft 23 is located above the energy storage indicator 1, the opening and closing indicator 2, and the operation indicator 5. The space below the closing half-shaft 23 is used for the limiting cooperation of the comprehensive judgment component 4 with the energy storage indicator 1, the opening and closing indicator 2, and the operation indicator 5; the opening half-shaft 31 is arranged on the other side of the shell and is opposite to the closing half-shaft 23. Under the driving action of the driving elastic component 61, the comprehensive judgment component 4 can slide in the shell between the opening half-shaft 31 and the closing half-shaft 23, making full use of the gaps between the various indicators and providing space utilization in the shell.

[0048] like Figure 1-2The figure shows an optimal layout structure, in which the operating mechanism arranged in the circuit breaker housing includes two opposite side plates 6, and the energy storage indicator 1, the opening and closing indicator 2, the operating indicator 5, the closing half-shaft 23 and the opening half-shaft 31 are arranged between the two side plates 6, and the opening and closing indicator 2, the operating indicator 5 and the energy storage indicator 1 are all rotatably installed in parallel below the closing half-shaft 23 in sequence, and a window (not shown) is provided at a position opposite to the circuit breaker housing to observe the states of the energy storage indicator 1, the opening and closing indicator 2 and the operating indicator 5; a cam 12 cooperating with the energy storage indicator 1 is rotatably installed on one side close to the energy storage indicator 1; a rotating shaft 71 of the operating mechanism is provided below the opening half-shaft 31, the rotating shaft 71 passes through the two side plates 6 and an indicator cantilever 22 cooperating with the opening and closing indicator 2 is rotatably installed on the rotating shaft 71. A slide groove 63 is provided on the side plate 6, and a support member 421 matched with the slide groove 63 is provided on the comprehensive judgment member 4. The support member 421 can also be used to push the micro switch on the outer wall of the side plate 6, and output the electrical signal of the opening and closing state through the micro switch; after the energy storage indicator 1, the opening and closing indicator 2 and the undervoltage release judgment mechanism 3 are all released from the limit cooperation with the comprehensive judgment member 4, the driving elastic member 61 cooperates to make one end of the comprehensive judgment member 4 slide to the top of the closing half shaft 23, and the other end of the comprehensive judgment member 4 slides between the rotating shaft 71 and the opening half shaft 31. The driving elastic member 61 in this embodiment is preferably a spring, one end of which is fixed on the side plate 6, and the other end is connected to the driving part 45 of the comprehensive judgment member 4. When one end of the comprehensive judgment member 4 slides to the top of the closing half shaft 23, the spring releases energy as the driving elastic member 61; then the circuit breaker is closed, and the comprehensive judgment member 4 slides to the original position indicating that the circuit breaker cannot be closed, as the spring energy storage of the driving elastic member 61. It should be noted that the comprehensive judgment component 4 returns to the position where the switch cannot be closed under the joint push of the energy storage indicator 1, the opening and closing indicator 2 and the undervoltage release judgment mechanism 3; the indicator cantilever 22 and the opening and closing cantilever can be the same part, and of course, another indicator cantilever 22 can be set without borrowing the opening and closing cantilever.

[0049] The energy storage indicator 1 includes a first rocker arm 11 provided with an energy storage indication identification portion, the opening and closing indicator 2 includes a second rocker arm 21 provided with an opening and closing indication identification portion, and the operation indicator 5 includes a fourth rocker arm 51 provided with an operation indication identification portion. The second rocker arm 21, the fourth rocker arm 51 and the first rocker arm 11 rotate in parallel in sequence between the two side plates 6. Preferably, the second rocker arm 21, the fourth rocker arm 51 and the first rocker arm 11 are coaxially installed, and a connecting shaft 72 for limiting the rotation angle of the second rocker arm 21, the fourth rocker arm 51 and the first rocker arm 11 is also provided between the two side plates 6.

[0050] Based on the layout structure in this embodiment, the specific structures of the energy storage indicator 1, the opening and closing indicator 2, the undervoltage release judgment mechanism 3 and the operation indicator 5 are provided.

[0051] like Figure 3-4 As shown, the energy storage indicator 1 includes a first rocker arm 11 rotatably mounted between the inner side plates 6 of the housing, a cam 12 is rotatably mounted on one side of the first rocker arm 11, the cam 12 is linked with the energy storage mechanism, a first convex arm 111 protruding outward is provided on one side of the first rocker arm 11, a slot 121 is provided on the circumferential edge of the cam 12, and the first convex arm 111 can be fitted into the slot 121 of the cam 12 when sliding along the circumferential edge of the cam 12; a second convex arm 112 is provided on the other side of the first rocker arm 11, and the second convex arm 112 is used to cooperate with the comprehensive judgment The first matching portion 41 of the component 4 is matched, and the first rocker arm 11 is preferably fan-shaped, and one end of the first rocker arm 11 is an arc surface as an energy storage indication mark part for displaying the state of the energy storage component, for example, "energy storage" is marked on the upper part of the arc surface, and "energy release" is marked on the lower part of the arc surface; the other end of the first rocker arm 11 is used for rotational connection, and a groove is provided in the middle of the first rocker arm 11, and a connecting shaft 72 passes through the groove. During the swinging process of the first rocker arm 11, the connecting shaft 72 is used to limit the rotation position of the first rocker arm 11, and the connecting shaft 72 cooperates with the groove to switch the mark on the energy storage indication mark part. The first convex arm 111 is formed by the arc edge of the first rocker arm 11 extending toward the cam 12, and the second convex arm 112 is located on the side away from the cam 12. Preferably, the second convex arm 112 is protruded at one end of the first rocker arm 11 for connection, and the second convex arm 112 can conflict with the first matching portion 41 of the comprehensive judgment component 4 to limit the comprehensive judgment component 4 from sliding in the direction of the closing half shaft 23.

[0052] The action process of the comprehensive judgment member 4, the energy storage indicator 1 and the cam 12 is as follows: the cam 12 is linked with the energy storage mechanism, and the cam 12 is installed on the V-shaped shaft connected to the handle. The cam assembly installed on the V-shaped shaft is driven by repeatedly swinging the handle to make the energy storage mechanism store energy. The cam assembly may include the cam 12. The cam 12 may be a cam directly used to drive the energy storage mechanism to store energy, or the cam 12 is separately arranged on the V-shaped shaft and is specifically used to cooperate with the energy storage indicator 1. When the energy storage is not completed and the energy storage indicator 1 indicates that the energy storage is not completed, the first convex arm 111 cooperates with the edge of the cam 12 to prevent the first rocker arm 11 from rotating and make the second convex arm 112 abut against the first matching portion 41 to maintain the limit match (see Figure 3 ); When the energy storage is completed and the energy storage indicator 1 indicates that the energy storage is completed, the first convex arm 111 is inserted into the slot 121 of the cam 12, and the rocker arm rotates with the cam 12. In the figure, the first rocker arm 11 rotates counterclockwise, and the second convex arm 112 is separated from the first matching portion 41 as the first rocker arm 11 rotates to release the limit fit (see Figure 4); when closing the circuit breaker, the energy storage mechanism releases energy, the cam 12 is reset along with the V-shaped shaft, the first convex arm 111 cooperates with the edge of the cam 12, the cam 12 causes the first rocker arm 11 to rotate, and the first rocker arm of the energy storage indicator 1 indicates that the energy storage is not completed, and causes the second convex arm 112 to abut against the first matching portion 41 to drive the comprehensive judgment component 4 to slide toward the opening half shaft 31, and maintain the limit matching, and at the same time, the comprehensive judgment component 4 causes the operation indicator to display that the circuit breaker cannot be closed.

[0053] like Figure 5-6 As shown, the switch-on / off indicator 2 includes a second rocker arm 21 rotatably mounted between two side plates 6 in the housing, and a first action portion 211 cooperating with the comprehensive judgment member 4 and a second action portion 212 cooperating with the indicator cantilever 22 are provided at one end of the second rocker arm 21. Preferably, the second rocker arm 21 is coaxially rotatably mounted with the first rocker arm 11, and one side of the second rocker arm 21 is used as a switch-on / off indicator identification portion, having an arc surface for indicating the switch-on / off status, with "off" marked on the upper part of the arc surface and "on" marked on the lower part of the arc surface. A groove is provided in the middle of the second rocker arm 21, and the groove of the second rocker arm 21 corresponds to the groove position of the first rocker arm 11, and is used to pass through the same connecting shaft 72 to switch the arc surface identification, and the connecting shaft 72 is used to limit the rotation position of the second rocker arm 21. A protruding structure is provided on one side of the second rocker arm 21 close to the indicator cantilever 22 as the second action portion 212, and a protruding structure is provided on one side of the second rocker arm 21 close to the comprehensive judgment member 4 as the first action portion 211. In this embodiment, the first rocker arm 11 and the second rocker arm 21 are coaxially connected and individually limitedly engaged with the first matching portion 41. Preferably, the first action portion 211 is a rod-shaped protrusion extending toward the first rocker arm 11, so that the first action portion 211 can extend above the first protruding arm 111, so that the first action portion 211 and the first protruding arm 111 respectively engage with different positions of the first matching portion 41 of the comprehensive judgment component 4. An indicator cantilever 22 is rotatably installed on one side of the second rocker arm 21. Preferably, the indicator cantilever 22 is installed on the rotating shaft 71 between the two side plates 6. The rotating shaft 71 drives the main contacts of the circuit breaker to open and close through the opening and closing cantilever arranged thereon. A third acting part 221 is provided on the indicator cantilever 22. Preferably, the third acting part 221 is a protruding structure arranged on one side of the indicator cantilever 22 close to the second rocker arm 21. The second acting part 212 and the third acting part 221 abut against each other to form a buckle structure to limit the rotation of the second rocker arm 21. At this time, the first acting part 211 abuts against the first matching part 41 to limit the comprehensive judgment part 4 from sliding in the direction of the closing half-shaft 23. After the buckle structure of the second acting part 212 and the third acting part 221 is disintegrated, the second rocker arm 21 can rotate counterclockwise as shown in the figure, thereby releasing the limiting cooperation between the first acting part 211 and the first matching part 41.

[0054] The action process of the comprehensive judgment member 4, the opening and closing indicator 2 and the indicator cantilever 22 is as follows: when the circuit breaker is closed, the energy storage mechanism releases energy through the connecting rod mechanism to drive the rotating shaft 71 to rotate, and the rotating shaft 71 drives the main contact to close through the opening and closing cantilever thereon, and at the same time drives the indicator cantilever 22 to rotate, and the third action part 221 of the indicator cantilever 22 drives the opening and closing indicator 2 to rotate through the second action part 212 to indicate closing, and when the opening and closing indicator 2 indicates that the main contact is closed, the second action part 212 and the third action part 221 abut against each other so that the second rocker arm 21 cannot rotate and the first action part 211 conflicts with the first matching part 41, driving the comprehensive judgment member 4 to slide toward the opening half shaft 31 and maintain the limit matching (see Figure 5 ); When the circuit breaker is opened, the rotating shaft 71 drives the indicator cantilever 22 to rotate in the opposite direction, and the third action portion 221 is separated from the second action portion 212 to indicate the opening, and the opening indicator 2 is reversely rotated by its reset spring, that is, after the indicator cantilever 22 releases the limit of the opening and closing indicator 2, the opening and closing indicator 2 is reversely rotated by the reset spring. When the opening and closing indicator 2 rotates in the opposite direction to indicate that the main contact is disconnected, the second rocker arm 21 rotates to separate the first action portion 211 from the first matching portion 41 of the comprehensive judgment member 4 to release the limit match (see Figure 6 ).

[0055] like Figure 6-7 As shown, the undervoltage release judgment mechanism 3 includes a switch-off half-shaft 31 rotatably mounted between two side plates 6 in the housing, and a trip finger 311 and a protruding limit boss 312 are provided on the switch-off half-shaft 31. The limit boss 312 is located on the side close to the comprehensive judgment member 4. After the switch-off half-shaft 31 rotates counterclockwise, the limit boss 312 contacts the second matching portion 42 to limit the sliding of the comprehensive judgment member 4. After the switch-off half-shaft 31 rotates clockwise, the limit boss 312 and the second matching portion 42 are released from the limit matching. Preferably, the number of limit bosses 312 is two, and the two limit bosses 312 form an open groove 313 on the side of the switch-off half-shaft 31 close to the comprehensive judgment member 4 (see Figure 2 ), the opening groove 313 is used to limit the comprehensive judgment member 4, and the corresponding upper side edge of the comprehensive judgment member 4 extends into the opening groove 313 for limiting. Under the limiting action of the opening groove 313, the comprehensive judgment member 4 is located between the rotating shaft 71 and the opening half shaft 31, and can provide a guiding effect for the comprehensive judgment member 4 during its movement. The ends of the two limiting bosses 312 respectively cooperate with the arc-shaped raised second matching parts 42 on both sides of the comprehensive judgment member 4 to limit the sliding of the comprehensive judgment member 4.

[0056] The action process of the undervoltage release, the comprehensive judgment member 4 and the undervoltage release judgment mechanism 3 is that when the undervoltage release is out of power, the tripping finger 311 of the opening half shaft 31 is pressed down by the undervoltage release, and the opening half shaft 31 rotates to make the limiting boss 312 abut against the second matching portion 42 to maintain the limiting match (see Figure 7 ); When the undervoltage release is powered, the undervoltage release is powered and does not press down the opening half shaft 31, and the tripping finger 311 of the opening half shaft 31 is reset and rotated to separate the limiting boss 312 from the second matching portion 42 of the comprehensive judgment member 4 to release the limiting match (see Figure 6 The opening half-shaft 31, the tripping finger 311 and the limiting boss 312 in the circuit breaker are provided). It should be noted that the undervoltage releaser and the opening half-shaft 31 are the existing opening coordination mechanism. When the circuit breaker is in the closed state, when an undervoltage fault occurs, the undervoltage releaser acts to press down the tripping finger 311 of the opening half-shaft 31, so that the opening half-shaft 31 rotates to release the limit and then triggers the circuit breaker to trip and open. In addition, the opening half-shaft 31 is usually also coordinated with the opening button, other fault releases, etc., which belongs to the prior art in this field and will not be repeated here. Regarding the undervoltage release judgment mechanism 3, the improvement of the present invention is that a comprehensive judgment part 4 is set, the existing opening half-shaft 31 is improved, and a limiting boss 312 is added to cooperate with the comprehensive judgment part 4 to judge whether the undervoltage releaser has a voltage that meets the requirements.

[0057] like Figure 8-9 As shown, the operation indicator 5 includes a fourth rocker arm 51 provided with an operation indication mark portion, and the fourth rocker arm 51 is preferably located between the first rocker arm 11 and the second rocker arm 21; the middle part of the fourth rocker arm 51 is rotatably supported between the two side plates 6 in the shell, and one end of the fourth rocker arm 51 serves as the operation indication mark portion, and the operation indication mark portion is preferably fan-shaped, with "OK" marked on the upper arc surface of the operation indication mark portion and "OK" marked on the lower arc surface, and a notch 52 is provided on the lower side of the operation indication mark portion, and the notch 52 is used to cooperate with the connecting shaft 72 to switch the state of the operation indication mark portion, and the connecting shaft 72 is the same connecting shaft 72 that cooperates with the first rocker arm 11 and the second rocker arm 21, and the connecting shaft 72 is used to limit the rotation position of the fourth rocker arm 51. The other end of the fourth rocker arm 51 is provided with a second driving member 62 that cooperates with the side plate 6 as a connecting end, and the connecting end of the fourth rocker arm 51 is limitedly cooperated with the fourth matching portion 44 of the comprehensive judgment member 4. Preferably, the connecting end is bent into a right angle and a hook structure is formed at the tail end of its vertical part, and the hook structure is used to connect with the second driving member 62, and the vertical part of the connecting end is used to cooperate with the fourth matching portion 44 of the comprehensive judgment member 4. During the sliding process of the comprehensive judgment member 4, the second driving member 62 drives the fourth rocker arm 51 to rotate, and the fourth matching portion 44 serves as the rotation fulcrum of the fourth rocker arm 51. Preferably, the second driving member 62 is a spring, and the two ends of the second driving member 62 are respectively connected to the operation indicator 5 and the side plate 6.

[0058] After the first matching portion 41 and the second matching portion 42 are released from the limit matching, the comprehensive judgment member 4 moves between the two side plates 6 under the action of the driving elastic member 61 so that the third matching portion 43 can match with the closing half shaft 23. At the same time, during the sliding process of the comprehensive judgment member 4, the fourth matching portion 44 of the comprehensive judgment member 4 slides in a direction away from the connection end of the fourth rocker arm 51, and the operation indicator 5 rotates the operation indication mark portion to indicate that the operation can be performed under the joint action of the fourth matching portion 44 and the second driving member 62 (see Fig. 9 ), in addition, the fourth rocker arm 51 remains as Figure 8 The non-closable state is shown.

[0059] Combination Fig.10 An optimal structure of a comprehensive judgment member 4 is provided, wherein the comprehensive judgment member 4 includes a rod body, one end of the rod body has a straight edge, and the straight edge serves as a first matching portion 41 of the comprehensive judgment member 4. The energy storage indicator 1 and the opening and closing indicator 2 are respectively limitedly matched with the first matching portion 41. In this embodiment, the energy storage indicator 1 and the opening and closing indicator 2 are respectively matched with different positions of the straight edge, so the matching position can be further optimized on the straight edge accordingly. The other end of the rod body is blunt-rounded as the tail of the comprehensive judgment member 4, and the tail of the comprehensive judgment member 4 slides between the opening half-shaft 31 and the rotating shaft 71. Preferably, a contact portion 46 is provided at the tail of the comprehensive judgment member 4 to protrude downward, and the contact portion 46 is used to maintain sliding contact with the rotating shaft 71. Under the cooperation of the two, the contact surface of the contact portion 46 is preferably an inclined surface, and the rod body between the first matching portion 41 and the tail is provided with a groove serving as a driving portion 45, and preferably the groove of the driving portion 45 is provided with an entrance, such as Figure 3 , 4 As shown in FIG. 10 , the driving portion 45 is hook-shaped, which facilitates the connection of one end of the driving elastic member 61 with the driving portion 45 , and the other end of the driving elastic member 61 is fixed in the housing, preferably fixed on the side plate 6 .

[0060] An arc-shaped protrusion is provided on one side of the rod body near the tail as a second matching portion 42, and the second matching portion 42 is used to limit the undervoltage release judgment mechanism 3. Preferably, the rod body of the comprehensive judgment member 4 is provided with arc-shaped protrusions on both sides near the tail as the second matching portion 42, and the side edges of the rod body before the arc-shaped protrusions on both sides are used to extend into the open groove 313 on the opening half shaft 31 of the undervoltage release judgment mechanism 3. Preferably, Figure 1 , 10As shown, the second matching portion 42 extends toward the side plate 6, and a rod-shaped structure is protruded from the side of the second matching portion 42 as a support member 421, and the support member 421 can be slidably matched with the slide groove 63 of the side plate 6. When the energy storage indicator 1, the opening and closing indicator 2, and the undervoltage release judgment mechanism 3 are all in a closing state, the comprehensive judgment member 4 drives the driving elastic member 61 to make the support member 421 slide along the slide groove 63 of the side plate 6. Further, the support member 421 extends out of the side plate 6 through the slide groove 63, and can cooperate with the micro switch to send out a closing electrical signal and a non-closing electrical signal.

[0061] A protruding structure as a third matching portion 43 is protruded outwardly from the upper side of the first matching portion 41. The third matching portion 43 is used to match with the closing half shaft 23, specifically, to match with the boss structure on one side of the closing half shaft 23. An extension portion 431 is provided on the third matching portion 43 to match with the closing button. The extension portion 431 is used to make the third matching portion 43 match with the closing half shaft 23. Pressing the closing button acts on the extension portion 431, and then the closing half shaft 23 is rotated through the third matching portion 43, triggering the closing action, so that the energy storage mechanism releases energy. A protruding structure as a fourth matching portion 44 is protruded from one side of the middle part of the rod body, and the fourth matching portion 44 and the third matching portion 43 are located on the same side of the rod body. The fourth matching portion 44 is used to match with the operating indicator 5. Specifically, the connection end of the operating indicator 5 matches with the fourth matching portion 44 to drive the operating indicator 5 during the sliding process of the comprehensive judgment member 4, and serves as the rotation fulcrum of the operating indicator 5 when the second driving member 62 drives the operating indicator 5 to rotate. Furthermore, the end of the slide slot 63 close to the closing half-shaft 23 is larger than the other end, so that the support member 421 can rotate at the end of the slide slot 63 close to the closing half-shaft 23, but cannot rotate at the end away from the closing half-shaft 23.

[0062] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. An operating mechanism capable of preventing a circuit breaker from closing by mistake, comprising an energy storage indicator (1) for indicating the energy storage state of an energy storage element, an opening and closing indicator (2) for indicating the position of a main contact, an undervoltage release judging mechanism (3) for judging the state of an undervoltage release, and an operating indicator (5) for indicating whether the operating mechanism can close the circuit, and a closing half shaft (23) for realizing the closing of the main contact, characterized in that: It also includes a comprehensive judgment component (4) and a driving elastic component (61) connected to the comprehensive judgment component (4), wherein the energy storage indicator (1), the opening and closing indicator (2), the undervoltage release judgment mechanism (3), the operation indicator (5) and the closing half shaft (23) cooperate with the comprehensive judgment component (4) separately and without interfering with each other; The energy storage indicator (1) limits the comprehensive judgment component (4) when indicating that energy storage is not completed, and releases the limit on the comprehensive judgment component (4) when indicating that energy storage is completed; the opening and closing indicator (2) limits the comprehensive judgment component (4) when indicating that the main contact is not disconnected, and releases the limit on the comprehensive judgment component (4) when indicating that the main contact is disconnected; the undervoltage release judgment mechanism (3) limits the comprehensive judgment component (4) when the undervoltage release is in an abnormal working state, and releases the limit on the comprehensive judgment component (4) when the undervoltage release is in a normal working state; When the energy storage indicator (1), the opening and closing indicator (2), and the undervoltage release judgment mechanism (3) all release the limit on the comprehensive judgment member (4), the comprehensive judgment member (4) slides to a position cooperating with the closing half shaft (23) under the action of the driving elastic member (61) so that the circuit breaker can perform a closing operation, and at the same time, the comprehensive judgment member (4) can make the operation indicator (5) display that the operating mechanism can close the circuit breaker.

2. The operating mechanism capable of preventing the circuit breaker from closing by mistake according to claim 1, characterized in that: The comprehensive judgment component (4) is slidably arranged on the side plate (6) of the operating mechanism, and the comprehensive judgment component (4) is located below the opening half-shaft (31) of the undervoltage release judgment mechanism (3). When the energy storage indicator (1), the opening and closing indicator (2), and the undervoltage release judgment mechanism (3) all release the limit on the comprehensive judgment component (4), the comprehensive judgment component (4) slides to a position matching the closing half-shaft (23) under the action of the driving elastic component (61), and the operating indicator (5) can display that the operating mechanism can close the switch.

3. The operating mechanism capable of preventing the circuit breaker from closing by mistake according to claim 1, characterized in that: The comprehensive judgment component (4) is arranged between the energy storage indicator (1), the opening and closing indicator (2), the undervoltage release judgment mechanism (3) and the operation indicator (5), and the comprehensive judgment component (4) comprises a first matching portion (41) respectively matched with the energy storage indicator (1) and the opening and closing indicator (2), a second matching portion (42) matched with the undervoltage release judgment mechanism (3), a third matching portion (43) matched with the closing half shaft (23), and a fourth matching portion (44) matched with the operation indicator (5); After the first matching portion (41) and the second matching portion (42) are both released from the limit matching, the comprehensive judgment member (4) slides to a position where it can match with the closing half-shaft (23) under the action of the driving elastic member (61), so that the third matching portion (43) of the comprehensive judgment member (4) can match with the closing half-shaft (23), and during the sliding process of the comprehensive judgment member (4), the fourth matching portion (44) releases the limit on the operating indicator member (5), so that the operating indicator member (5) displays that the operating mechanism can close the switch.

4. The operating mechanism capable of preventing the circuit breaker from closing by mistake according to claim 3, characterized in that: The invention comprises two opposite side plates (6), wherein an energy storage indicator (1), a switch opening and closing indicator (2), an operation indicator (5), a switch closing half-shaft (23) and a switch opening half-shaft (31) are arranged between the two side plates (6), and the switch opening and closing indicator (2), the operation indicator (5) and the energy storage indicator (1) are all rotatably mounted in parallel below the switch closing half-shaft (23); a cam (12) cooperating with the energy storage indicator (1) is rotatably mounted on a side close to the energy storage indicator (1); a rotating shaft (71) of an operating mechanism is arranged below the switch opening half-shaft (31), and the rotating shaft (71) passes through the two side plates (6) and is An indicator cantilever (22) matched with the opening and closing indicator (2) is mounted on the rotating shaft (71); a slide groove (63) is arranged on the side plate (6); a support member (421) matched with the slide groove (63) is arranged on the comprehensive judgment member (4); after the energy storage indicator (1), the opening and closing indicator (2) and the undervoltage release judgment mechanism (3) are all released from the limit match with the comprehensive judgment member (4), the elastic member (61) is driven to enable one end of the comprehensive judgment member (4) to slide to the top of the closing half shaft (23), and the other end of the comprehensive judgment member (4) slides between the rotating shaft (71) and the opening half shaft (31).

5. The operating mechanism capable of preventing the circuit breaker from closing by mistake according to claim 3, characterized in that: The energy storage indicator (1) comprises a first rocker arm (11) which is rotatably mounted and provided with an energy storage indicator identification portion; a cam (12) is rotatably mounted on one side of the first rocker arm (11); the cam (12) is linked to an energy storage mechanism; a first convex arm (111) protruding outward is provided on one side of the first rocker arm (11); a clamping groove (121) is provided on the circumferential edge of the cam (12); the first convex arm (111) can be fitted into the clamping groove (121) of the cam (12) when sliding along the circumferential edge of the cam (12); a second convex arm (112) is provided on the other side of the first rocker arm (11); The two convex arms (112) are used to cooperate with the first matching portion (41); when the energy storage indicator (1) indicates that energy storage is not completed, the first convex arm (111) cooperates with the edge of the cam (12) so that the first rocker arm (11) cannot rotate and the second convex arm (112) abuts against the first matching portion (41) to maintain limited position cooperation; when the energy storage indicator (1) indicates that energy storage is completed, the first convex arm (111) is inserted into the clamping groove (121) of the cam (12), the rocker arm rotates with the cam (12), and the second convex arm (112) is separated from the first matching portion (41) as the first rocker arm (11) rotates to release the limited position cooperation.

6. The operating mechanism capable of preventing the circuit breaker from closing by mistake according to claim 3, characterized in that: The switch-on / off indicator (2) comprises a second rocker arm (21) which is rotatably mounted and provided with a switch-on / off indicator identification portion, an indicator cantilever arm (22) is rotatably mounted on one side of the second rocker arm (21), the indicator cantilever arm (22) is mounted on a rotating shaft (71) between the side plates (6) for driving the main contact to close, a first action portion (211) and a second action portion (212) are provided at one end of the second rocker arm (21), and a third action portion (221) is provided on the indicator cantilever arm (22); When the circuit breaker is closed, the rotating shaft (71) rotates to drive the main contact to close, and at the same time, the indicator cantilever (22) rotates, and the third action part (221) of the indicator cantilever (22) drives the opening and closing indicator (2) to rotate through the second action part (212) to indicate closing, and when the opening and closing indicator (2) indicates that the main contact is closed, the second action part (212) and the third action part (221) abut against each other so that the second rocker arm (21) cannot rotate and the first action part (211) and the first action part (221) are in contact with each other. The matching parts (41) are in conflict with each other to maintain the limit matching; when the circuit breaker is opened, the rotating shaft (71) drives the indicator cantilever (22) to rotate in the opposite direction, and the third action part (221) is separated from the second action part (212) to indicate the opening of the circuit breaker; when the opening and closing indicator (2) indicates that the main contact is disconnected, the second action part (212) is separated from the third action part (221), and the second rocker arm (21) rotates to separate the first action part (211) from the first matching part (41) to release the limit matching.

7. The operating mechanism capable of preventing the circuit breaker from closing by mistake according to claim 3, characterized in that: The undervoltage release judgment mechanism (3) comprises a rotatably mounted opening half shaft (31), wherein the opening half shaft (31) is provided with a trip finger (311) and a protruding limiting boss (312); When the undervoltage releaser is de-energized, the tripping finger (311) of the opening half shaft (31) is pressed down by the undervoltage releaser, and the limiting boss (312) abuts against the second matching portion (42) to maintain the limiting match; when the undervoltage releaser is energized, the undervoltage releaser is electrically attracted and does not press down the opening half shaft (31), and the tripping finger (311) of the opening half shaft (31) is reset and rotated to separate the limiting boss (312) from the second matching portion (42) to release the limiting match.

8. The operating mechanism capable of preventing the circuit breaker from closing by mistake according to claim 3, characterized in that: The operation indicator (5) comprises a fourth rocker arm (51), the middle part of the fourth rocker arm (51) is rotatably supported in the side plate (6), one end of the fourth rocker arm (51) serves as an operation indicator mark, the other end of the fourth rocker arm (51) serves as a connecting end and cooperates with the side plate (6) through a second driving member (62), and the connecting end of the fourth rocker arm (51) is limitedly cooperated with the fourth cooperation portion (44); After the first matching portion (41) and the second matching portion (42) are both released from the limit matching, the comprehensive judgment member (4) moves between the side plates (6) under the action of the driving elastic member (61) so that the third matching portion (43) can match with the closing half shaft (23). At the same time, during the movement of the comprehensive judgment member (4), the operation indicator member (5) rotates under the joint action of the fourth matching portion (44) and the second driving member (62) to indicate that the operation can be operated.

9. The operating mechanism capable of preventing the circuit breaker from closing by mistake according to claim 1, characterized in that: The comprehensive judgment member (4) comprises a rod body, one end of the rod body has a straight edge, the straight edge serves as a first matching portion (41) of the comprehensive judgment member (4), and the energy storage indicator (1) and the opening and closing indicator (2) are individually limitedly matched with the first matching portion (41); the other end of the rod body is the tail of the comprehensive judgment member (4), and the rod body between the first matching portion (41) and the tail is provided with a driving portion (45) connected to the driving elastic member (61); an arc-shaped protrusion is provided on one side of the rod body close to the tail as a second matching portion (42), The second matching portion (42) is used for limiting matching with the undervoltage release judgment mechanism (3); a protruding structure as a third matching portion (43) is protruding outwardly above the first matching portion (41); the third matching portion (43) is used for matching with the closing half shaft (23); an extension portion (431) that matches with the closing button is provided on the third matching portion (43); a protruding structure as a fourth matching portion (44) is protruding on one side of the middle part of the rod body; the fourth matching portion (44) is used for matching with the operation indicator (5).

10. The operating mechanism capable of preventing the circuit breaker from closing by mistake according to claim 9, characterized in that: The invention comprises two opposite side plates (6), wherein a slide groove (63) is provided on the side plate (6) and is slidably matched with the comprehensive judgment member (4); a rod-shaped structure is protruded on the side of the second matching portion (42) as a support member (421); the support member (421) is slidably matched with the slide groove (63), and the support member (421) is used to cooperate with the micro switch on the outer wall of the side plate (6) to output an electrical signal of the opening and closing state; when the energy storage indicator (1), the opening and closing indicator (2) and the undervoltage release judgment mechanism (3) are all in the closing state, the comprehensive judgment member (4) causes the support member (421) to slide along the slide groove (63) of the side plate (6) under the drive of the driving elastic member (61).

11. The operating mechanism capable of preventing the circuit breaker from closing by mistake according to claim 10, characterized in that: The end of the slide groove (63) close to the closing half-shaft (23) is larger than the other end, so that the support member (421) can rotate at the end of the slide groove (63) close to the closing half-shaft (23) but cannot rotate at the end away from the closing half-shaft (23).

12. The operating mechanism capable of preventing the circuit breaker from closing by mistake according to claim 9, characterized in that: The rod body of the comprehensive judgment member (4) is provided with arc-shaped protrusions on both sides near the tail as second matching parts (42), and the side edges of the rod body between the arc-shaped protrusions on both sides are used to extend into the open groove (313) on the opening half shaft (31) of the undervoltage release judgment mechanism (3).

13. The operating mechanism capable of preventing the circuit breaker from closing by mistake according to claim 9, characterized in that: The tail of the rod body of the comprehensive judgment member (4) protrudes downward and is provided with a contact portion (46); the opening and closing indicator (2) comprises a second rocker arm (21) which is rotatably mounted and provided with an opening and closing indicator identification portion; and an indicator cantilever (22) is rotatably mounted on one side of the second rocker arm (21).

14. The operating mechanism capable of preventing the circuit breaker from closing by mistake according to claim 7, characterized in that: Two limiting bosses (312) are provided on the opening gate half-shaft (31), and the two limiting bosses (312) form an open groove (313) on one side of the opening gate half-shaft (31) close to the comprehensive judgment member (4), and the corresponding upper side edge of the comprehensive judgment member (4) extends into the open groove (313) for limiting.

Images