CN207441618U - A kind of energy storage closing interlocking mechanism of circuit breaker operation mechanism - Google Patents

Abstract

An energy storage closing interlocking mechanism of a circuit breaker operating mechanism, which includes a closing lever (1), and the closing lever (1) is mounted on a shaft one (2), and is characterized in that: the closing lever (1) It can rotate around shaft one (2) and move left and right along the horizontal plane where shaft one (2) is located. The closing lever (1) is connected with an elastic element (3), and the elastic element (3) has the function of driving the closing The lever (1) tends to rotate clockwise, and the closing lever (1) is restricted by the upper cover (4) to limit the clockwise rotation stroke; this energy storage closing interlock mechanism effectively solves the problem of closing the lever during use of the operating mechanism The problem of easy breakage; at the same time, when the circuit breaker is in the functional state of undervoltage and power failure protection, the opening half shaft directly links the closing lever, so that the closing lever is locked in the state of prohibiting closing, and avoids false closing of the operating mechanism Operation: The structure of the whole mechanism is simple, the closing half shaft and the closing lever are directly linked without intermediate transition parts, and the movement mode is simpler and more reliable.

Description

Energy storage closing interlocking mechanism of circuit breaker operating mechanism

technical field

The utility model relates to the technical field of circuit breakers, in particular to an energy storage closing interlocking mechanism of a circuit breaker operating mechanism.

Background technique

Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. Low-voltage circuit breaker, also known as automatic switch, commonly known as "air switch", also refers to low-voltage circuit breaker. It is an electrical appliance that not only has the function of manual switch, but also can automatically protect against voltage loss, undervoltage, overload, and short circuit. It can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, etc., and can automatically cut off the circuit when they have severe overload, short circuit and undervoltage faults. Its function is equivalent to a fuse switch and The combination of overheating and underheating relays, etc., and generally does not need to change parts after breaking the fault current, has been widely used.

At present, the closing electromagnet of the closing execution structure of the circuit breaker on the market is fixed above the operating mechanism. There is a cantilever on the closing lever of the operating mechanism, and the core of the closing electromagnet is located above the cantilever of the closing lever of the operating mechanism; When switching on, the iron core of the closing electromagnet is pushed out, which touches the closing lever of the operating mechanism, and then pushes the cantilever on the closing half shaft of the operating mechanism to rotate the half shaft, so that the mechanism performs closing operation. The closing lever mechanism of the circuit breaker in the prior art restricts the force in the horizontal torsion direction through the notch of the opening semi-axis, the notch of the side plate, the cover plate of the mechanism and the end of the closing lever. The opening, the closing lever, and the contact between the closing lever and the cover plate are under great force, and after repeated use, the two places are prone to breakage.

At the same time, in order to ensure that the closing lever can press down the closing semi-axis to make it close in the state of energy storage in the opening state, it is also necessary to protect that the closing cannot be closed in the three states: in the state of energy release, the protection closing lever cannot be pressed Lower the closing half shaft to make it trip; in the closing state, the protection closing lever cannot press down the closing half shaft to make it trip; in the state of opening and storing energy, the undervoltage release breaks the voltage and holds the opening half shaft , to protect the closing lever from pressing down the closing half shaft to make it trip. Especially when the undervoltage release breaks the voltage to hold the protection state of the opening semi-axis, the traditional solution is to let the opening semi-axis act on the closing lever through a transition part, but this transmission structure leads to torque during movement The transmission of the transmission is loaded down with trivial details, and the stability of transmission is also insufficient.

Utility model content

The purpose of this utility model is to solve the problem that the closing lever of the existing operating mechanism is easy to break during use. At the same time, when the circuit breaker is in the state of under-voltage and power-off protection, the semi-axis of the opening needs to act on the closing lever through the intermediate parts, resulting in Due to the technical defect of cumbersome torque transmission during movement, an energy storage closing interlock mechanism of the circuit breaker operating mechanism is provided. The closing lever is locked in the state of prohibiting closing, which avoids the false closing operation of the operating mechanism. The whole mechanism has a simple structure, reliable movement mode, convenient disassembly and maintenance, and reduces production costs.

Technical solutions

In order to achieve the above-mentioned technical purpose, the utility model designs an energy storage closing interlocking mechanism of a circuit breaker operating mechanism, which includes a closing lever, and the closing lever is installed on the shaft one, and is characterized in that: the closing The brake lever can rotate around the shaft and move left and right along the horizontal plane where the shaft is located. The closing lever is connected with an elastic element, and the elastic element has a tendency to drive the closing lever to rotate clockwise. The closing lever is restricted by the upper cover Clockwise rotation stroke;

When the closing lever moves to the left end of the horizontal plane where the first shaft is located under the action of the elastic element, the closing lever can be linked with the closing half shaft during the counterclockwise rotation around the first shaft, and the closing half shaft and the buckle linkage;

The energy storage and release indicator is mounted on the second shaft and can rotate, and the energy storage and release indicator can drive the closing lever to move rightward along the horizontal plane where the first axis is located during the clockwise rotation of the energy storage and release indicator;

The closing and opening indicator is installed on the third axis and can rotate, and the closing and opening indicator can drive the closing lever to move to the right along the horizontal plane where the first axis is located during the clockwise rotation of the closing and opening indicator;

The opening semi-shaft is mounted on the side plate and can rotate. During the counterclockwise rotation of the opening semi-shaft, the closing lever can be driven to move rightward along the horizontal plane where the shaft one is located.

Further, when the closing lever is located at the left end of the horizontal plane where the first shaft is located, it is linked with the closing semi-axis during counterclockwise rotation, and when the closing lever is located at the right end of the horizontal plane where the first shaft is located, it is linked with the closing semi-axis during counterclockwise rotation. separated.

Further, the closing lever is provided with a waist-shaped hole, and the shaft one is installed on the side plate through the waist-shaped hole, and the closing lever can move relatively from one end of the waist-shaped hole to the horizontal plane where the shaft one is located. At the other end, the closing lever is installed in the annular groove of the first shaft to limit the axial movement of the first shaft.

Further, one end of the elastic element is installed on the hanging spring part of the closing lever, and the other end is installed on the shaft five on the side plate, the elastic element can make the closing lever rotate clockwise, and the closing lever can rotate clockwise. The clockwise rotation stroke of the brake lever is limited by the upper cover.

Further, when the shaft one is located at the right end of the waist-shaped hole, turn the closing lever counterclockwise, and the closing lever surface one on the closing lever can be in contact with the closing semi-axis convex plate on the closing semi-axis, so that The closing semi-axis rotates clockwise. During the rotation of the closing semi-axis, the buckle surface at one end of the buckle moves from the buckle surface of the closing semi-axis to the notch of the closing semi-shaft and then releases.

Further, a drive arm 1 is provided on the energy storage and release indicator, and the drive arm 1 can contact the closing lever surface 2 on the closing lever during the clockwise rotation of the energy storing and releasing indicating piece, so that the closing lever The brake lever moves relatively to the right along the horizontal plane where axis one is located.

Further, the closing and opening indicator is provided with a driving arm 2, and the driving arm 2 can be in contact with the closing lever surface 3 on the closing lever during the clockwise rotation of the closing and opening indicating piece, so that the closing and opening The brake lever moves to the right along the horizontal plane where axis one is located.

Further, a driven arm protrudes from the opening half shaft, and the driven arm is driven by the undervoltage release to drive the opening half shaft to rotate counterclockwise, and the driving rod on the opening half shaft is connected with the closing The closing lever faces four on the lever are in contact with each other, so that the closing lever moves to the right along the horizontal plane where the first axis is located, and the upper plate of the closing lever is snapped into the limiting groove of the opening semi-axis.

Preferably, the elastic element is a spring.

Further, the closing lever is driven by the closing electromagnet to rotate counterclockwise around the shaft.

Described shaft one, shaft two, shaft three and shaft five are contained on the side plate.

Further, the gate opening half shaft is provided with a gate opening installation column, and the gate opening installation column is mounted on the side plate;

A closing installation column is arranged on the closing half shaft, and the closing installation column is installed on the side plate.

Further, the buckle is mounted on the shaft six and can rotate, and the shaft six is mounted on the side plate.

Beneficial effect

The utility model provides an energy storage closing interlocking mechanism of a circuit breaker operating mechanism, which effectively solves the problem that the closing lever of the operating mechanism is easily broken during use; , the opening half shaft is directly linked to the closing lever, so that the closing lever is locked in a state where closing is prohibited, and the operating mechanism is prevented from performing false closing operations; the structure of the whole mechanism is simple, and the closing half shaft and the closing lever do not need an intermediate transition The parts are directly linked, and the movement method is simpler and more reliable. At the same time, it is convenient for disassembly and maintenance, which reduces the production cost.

Description of drawings

Accompanying drawing 1 is the product figure of the utility model embodiment.

Accompanying drawing 2 is the structural diagram of closing lever in the utility model embodiment.

Accompanying drawing 3 is the schematic diagram of the position of the hanging spring part of the closing lever in the embodiment of the utility model.

Accompanying drawing 4 is a structural schematic diagram of the axis-installation position in the embodiment of the utility model.

Accompanying drawing 5 is the schematic diagram of the semi-shaft structure of opening in the embodiment of the utility model.

Accompanying drawing 6 is the structural schematic diagram of opening semi-axis and closing lever position in the embodiment of the utility model.

Accompanying drawing 7A is the schematic diagram of the closing semi-axis structure in the embodiment of the utility model.

Accompanying drawing 7B is the schematic diagram of the position and structure of the closing semi-axis and the buckle in the embodiment of the utility model.

Accompanying drawing 8 is the schematic diagram of buckle structure in the utility model embodiment.

Accompanying drawing 9 is a structural diagram of the installation position of the closing and opening indicator in the embodiment of the utility model.

Accompanying drawing 10 is the structural schematic diagram of closing and opening indicator in the embodiment of the utility model.

Accompanying drawing 11 is the structural diagram of the storage and release energy indicator in the embodiment of the utility model.

Accompanying drawing 12 is the structure schematic diagram of the embodiment of the utility model when it is in the state of opening and storing energy.

Accompanying drawing 13 is the structural diagram of the embodiment of the utility model when it is in the state of opening and releasing energy.

Accompanying drawing 14 is the structure diagram of the embodiment of the utility model when it is in the closing state.

Accompanying drawing 15 is the structural diagram of the embodiment of the utility model when it is in the state of opening energy storage and undervoltage power failure.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the utility model is described further.

Example

As shown in Figure 1, an energy storage closing interlocking mechanism of a circuit breaker operating mechanism includes a closing lever 1, and the closing lever 1 is mounted on a shaft 2, as shown in Figures 2 and 3 , specifically, the closing lever 1 is provided with a waist-shaped hole 101, the shaft one 2 is mounted on the side plate 13 and passes through the waist-shaped hole 101, and the closing lever 1 can move along the horizontal plane where the shaft one 2 is located. Relatively moving from one end of the waist-shaped hole 101 to the other end, the closing lever 1 is installed in the annular groove 201 shown in FIG.

The closing lever 1 is connected with an elastic element 3. In this embodiment, the elastic element 3 is a spring. One end of the elastic element 3 is mounted on the spring part 102 on the closing lever 1, and the other end is mounted on the On the shaft five 14 on the side plate 13, the elastic element 3 has a tendency to drive the closing lever 1 to rotate clockwise, and the head end 107 of the closing lever 1 is resisted by the upper cover 4 so that the clockwise rotation stroke is limited Therefore, the closing lever 1 is only subjected to a horizontal force to the left, and when the closing lever 1 is located at the left end of the horizontal plane where the shaft-2 is located, the closing lever 1 can be aligned with the closing semi-axis during the counterclockwise rotation around the shaft-2. 5 linkage, as shown in accompanying drawings 7A and 7B, the closing half shaft 5 is provided with a closing installation post 504, and the closing installation post 504 is mounted on the side plate 13 and can rotate, and the closing half shaft 5 is linked with buckle 6;

As shown in Figure 12, when the operating mechanism is in the state of opening and storing energy, the shaft one 2 is located at the right end of the waist hole 101, and the closing electromagnet 16 moves downward to drive the closing lever 1 around the shaft one 2 counterclockwise. Rotate, the closing lever surface one 103 on the closing lever 1 is in contact with the closing semi-axis convex plate 501 on the closing semi-axis 5, so that the closing semi-axis 5 rotates clockwise, and the closing semi-axis 5 During the rotation, as shown in Figures 7B and 8, the buckle 6 is mounted on the shaft six 17 to be able to rotate, and the shaft six 17 is mounted on the side plate 13. The buckle surface 601 at one end of the buckle piece 6 moves from the buckle surface 502 of the closing half shaft to the notch 503 of the closing half shaft and then releases the buckle.

As shown in the accompanying drawing 13, when the operating mechanism is in the opening and releasing energy, the energy storage and release indicator 7 is mounted on the shaft 2 8 on the side plate 13 and can rotate, as shown in the accompanying drawing 11, the energy storage and release indicator A drive arm 1 701 is provided on the part 7, and the drive arm 1 701 can contact the closing lever surface 2 104 on the closing lever 1 to overcome the resistance of the spring element 3 during the clockwise rotation of the energy storage and release indicator 7 , so that the closing lever 1 moves relatively to the right along the horizontal plane where the shaft one 2 is located. The end surface 108 thus drives the closing lever 1 to rotate counterclockwise around the axis-2. During the rotation of the closing lever 1, the closing lever surface 103 is in contact with the closing semi-axis convex plate 501 on the closing semi-axis 5 away, the protection operating mechanism does not close.

As shown in accompanying drawing 14, closing and opening indicator 9 is installed on the shaft three 10 on the side plate 13 and can rotate, as shown in accompanying drawing 9 and accompanying drawing 10, described closing and opening indicating part 9 is provided with drive Arm two 901, during the clockwise rotation of the closing and opening indicator 9, the driving arm two 901 contacts the closing lever surface three 105 on the closing lever 1 to overcome the resistance of the spring element 3, so that the closing lever 1 moves to the right along the horizontal plane where axis 1 is located, and when the closing lever 1 is located at the right end of the horizontal plane where shaft 1 2 is located, the closing electromagnet 16 moves downward to hit the upper end surface 108 on the closing lever 1 to drive the closing lever 1 rotates counterclockwise around axis 1, during the rotation of the closing lever 1, the closing lever surface 103 is separated from the closing semi-axis convex plate 501 on the closing semi-axis 5 to protect the operating mechanism from closing .

As shown in accompanying drawing 15, the opening mounting column 12 on the opening semi-shaft 11 is installed on the side plate 13 and can rotate, as shown in accompanying drawings 5 and 6, the passive arm 1101 protrudes from the opening semi-shaft 11 , the passive arm 1101 is driven by the undervoltage release 15 to drive the opening half shaft 11 to rotate counterclockwise, the driving rod 1102 on the opening half shaft 11 and the closing lever surface on the closing lever 1 Four 106 contacts, so that the closing lever 1 moves rightward along the horizontal plane where the shaft one 2 is located, the upper plate of the closing lever 1 is snapped into the limit groove 1103 of the opening half shaft 11 along the When the brake lever 1 is located at the right end of the horizontal plane where the shaft 12 is located, the closing electromagnet 16 moves downward to hit the upper end surface 108 on the closing lever 1, thereby driving the closing lever 1 to rotate counterclockwise around the shaft 2, passing through the closing lever 1 During the rotation of the lever 1, the closing lever surface one 103 is separated from the closing semi-axis convex plate 501 on the closing semi-shaft 5 to protect the operating mechanism from closing.

The structures, proportions, sizes, quantities, etc. shown in the drawings attached to the embodiments of the present utility model are only used to match the content disclosed in the manual, for those who are familiar with this technology to understand and read, and are not used to limit the utility model. The restrictive conditions for the implementation of the new model, so it has no technical substantive significance, any modification of the structure, the change of the proportional relationship or the adjustment of the size, without affecting the effect and the purpose of the utility model, should be Still fall within the scope that the technical content disclosed by the utility model can cover. At the same time, terms such as "upper", "lower", "left", "right", "middle", "clockwise", and "counterclockwise" quoted in this specification are only for the convenience of description. It is not intended to limit the applicable scope of the present utility model, and the change or adjustment of its relative relationship shall also be regarded as the applicable scope of the present utility model without substantial change in the technical content.

Claims (13)

1. An energy storage closing interlocking mechanism of a circuit breaker operating mechanism, which includes a closing lever (1), and the closing lever (1) is mounted on a shaft one (2), characterized in that: the closing The brake lever (1) can rotate around the shaft one (2) and move left and right along the horizontal plane where the shaft one (2) is located. The closing lever (1) is connected with an elastic element (3), and the elastic element (3) has a The tendency of the closing lever (1) to rotate clockwise, and the closing lever (1) is limited by the upper cover (4) to rotate clockwise; When the closing lever (1) moves to the left end position of the horizontal plane where the shaft one (2) is located under the action of the elastic element (3), the closing lever (1) can be rotated counterclockwise around the shaft one (2). The closing semi-axis (5) is linked, and the closing semi-axis (5) is linked with the buckle (6); The energy storage and release indicator (7) is mounted on the shaft two (8) and can rotate. During the clockwise rotation of the energy storage and release indicator (7), the closing lever (1) can be driven to move along the level of the axis one (2). Movement facing right; The closing and opening indicator (9) is mounted on the shaft three (10) and can rotate, and the closing and opening indicator (9) can drive the closing lever (1) to move along the level of the shaft one (2) during the clockwise rotation process. Movement facing right; The opening semi-shaft (11) is mounted on the side plate (13) and can rotate. During the counterclockwise rotation of the opening semi-shaft (11), the closing lever (1) can be driven to the right along the horizontal plane where the shaft one (2) is located. sports. 2. The energy storage closing interlock mechanism of a circuit breaker operating mechanism according to claim 1, characterized in that: the closing lever (1) is located at the left end of the horizontal plane where the shaft one (2) is located and rotates counterclockwise It can be linked with the closing semi-axis (5), and the closing lever (1) is located at the right end of the horizontal plane where the shaft one (2) is located, and is separated from the closing semi-axis (5) during counterclockwise rotation. 3. The energy storage closing interlocking mechanism of a circuit breaker operating mechanism according to claim 1, characterized in that: the closing lever (1) is provided with a waist-shaped hole (101), and the shaft one (2) Installed on the side plate (13) through the waist-shaped hole (101), the closing lever (1) can relatively move from one end of the waist-shaped hole (101) to the At the other end, the closing lever (1) is installed in the annular groove (201) of the shaft one (2) and is restricted from the axial movement of the shaft one (2). 4. The energy storage closing interlocking mechanism of a circuit breaker operating mechanism according to claim 1, characterized in that: one end of the elastic element (3) is mounted on the hanging spring on the closing lever (1) part (102), the other end is installed on the shaft five (14) on the side plate (13), the elastic element (3) can make the closing lever (1) rotate clockwise, and the closing lever ( 1) The clockwise rotation stroke is limited by the upper cover (4). 5. The energy storage closing interlocking mechanism of a circuit breaker operating mechanism according to claim 3, characterized in that: when the shaft one (2) is located at the right end of the waist hole (101), it turns counterclockwise to close Lever (1), the closing lever surface one (103) on the closing lever (1) can contact the closing semi-axis convex plate (501) on the closing semi-axis (5), so that the closing semi-axis The shaft (5) rotates clockwise, and during the rotation of the closing half shaft (5), the buckle surface (601) at one end of the buckle (6) moves from the buckle surface (502) of the closing half shaft to the groove of the closing half shaft After the port (503) is released. 6. The energy storage closing interlocking mechanism of a circuit breaker operating mechanism according to claim 1, characterized in that: said energy storage and release indicator (7) is provided with a drive arm one (701), said During the clockwise rotation of the energy storage and release indicator (7), the driving arm one (701) can contact the closing lever surface two (104) on the closing lever (1), so that the closing lever (1) moves along the The horizontal plane where axis one (2) is located moves relatively to the right. 7. The energy storage closing and interlocking mechanism of a circuit breaker operating mechanism according to claim 1, characterized in that: said closing and opening indicator (9) is provided with a driving arm 2 (901), said During the clockwise rotation of the closing and opening indicator (9), the driving arm 2 (901) can contact the closing lever surface 3 (105) on the closing lever (1), so that the closing lever (1) moves along the The horizontal plane where axis one (2) is located moves to the right. 8. The energy storage closing interlocking mechanism of a circuit breaker operating mechanism according to claim 1, characterized in that: a driven arm (1101) protrudes from the opening half shaft (11), and the driven arm (1101) is driven by the undervoltage release (15) to drive the opening half shaft (11) to rotate counterclockwise, and the driving rod (1102) on the opening half shaft (11) is connected with the closing lever (1 ) on the closing lever surface four (106), so that the closing lever (1) moves to the right along the horizontal plane where the axis one (2) is located, and the upper plate of the closing lever (1) is clamped on the In the limit slot (1103) of the opening half shaft (11). 9. The energy storage closing interlocking mechanism of a circuit breaker operating mechanism according to claim 1, characterized in that: the elastic element (3) is a spring. 10. The energy storage closing interlocking mechanism of a circuit breaker operating mechanism according to claim 1, characterized in that: the closing lever (1) is driven by the closing electromagnet (16) to rotate around a shaft (2 ) to turn counterclockwise. 11. The energy storage closing interlock mechanism of a circuit breaker operating mechanism according to claim 4, characterized in that: the first axis (2), the second axis (8), the third axis (10) and the fifth axis (14) is contained on the side plate (13). 12. The energy storage closing interlocking mechanism of a circuit breaker operating mechanism according to claim 1, characterized in that: the opening half shaft (11) is provided with an opening installation column (12), the The opening installation column (12) is contained on the side plate (13); The closing half shaft (5) is provided with a closing installation column (504), and the closing installation column (504) is installed on the side plate (13). 13. The energy storage closing interlocking mechanism of a circuit breaker operating mechanism according to claim 1, characterized in that: the buckle (6) is mounted on the shaft six (17) and can rotate, and the shaft six (17) is contained on the side plate (13).