CN213366466U - Auxiliary contact box of circuit breaker - Google Patents
Auxiliary contact box of circuit breaker Download PDFInfo
- Publication number
- CN213366466U CN213366466U CN202021886921.XU CN202021886921U CN213366466U CN 213366466 U CN213366466 U CN 213366466U CN 202021886921 U CN202021886921 U CN 202021886921U CN 213366466 U CN213366466 U CN 213366466U
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- circuit breaker
- box body
- switching
- rotating plate
- signboard
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Abstract
The utility model discloses a circuit breaker auxiliary contact box, include: the box body is provided with an opening at one end, a bracket is arranged on the outer wall of the other end, an identification window is arranged on the bracket, and a hinged support is arranged in the box body; one end of the rotating plate is hinged with the hinged support, and the other end swings back and forth; one end of the linkage rod is used for being in linkage connection with a switching-on and switching-off mechanism of the circuit breaker, and the other end of the linkage rod is pressed against the rear plate surface of the swinging end of the rotating plate; the rotor is hinged in the bracket, and a switching-on signboard and a switching-off signboard are arranged on the front side of the rotor; the inner end of the pressure lever is abutted against the swinging end of the rotating plate, and the outer end of the pressure lever extends into the bracket to be abutted against the rear side of the rotor; the micro switch is arranged in the box body, and the rotating plate triggers the micro switch when swinging to the rear side; the return spring is sleeved on the pressure rod; the utility model discloses can react sensitively, the reliability is high, accurate branch, the combined floodgate state that shows the circuit breaker.
Description
Technical Field
The utility model relates to a circuit breaker complementary unit especially relates to a circuit breaker auxiliary contact box.
Background
Because the circuit breaker needs frequent operation, if can not follow body mechanical position and carry out the correct judgement of the operating condition of opening, closing a floodgate, can lead to operating personnel's maloperation or the emergence of false power transmission accident, light person causes equipment to damage, and the power supply is interrupted, and the electric quantity loss, then seriously causes bodily injury, electric wire netting stability destruction. Therefore, it is very important to reliably, accurately and quickly reflect the real-time state of the breaker.
At present, because the current or the voltage of a main contact of the circuit breaker is large, an auxiliary contact mechanism needs to be installed on the circuit breaker for safety, the auxiliary contact mechanism can be linked with the main contact of the circuit breaker, and can indicate the opening and closing states of the main contact; however, the auxiliary contact mechanism has more parts and complex transmission process, is difficult to quickly and accurately reflect the real-time running state of the circuit breaker, and is easy to cause accidents due to misjudgment of operators; the shell of the auxiliary contact mechanism is generally made of plastic materials, and has low strength and low fireproof performance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a circuit breaker auxiliary contact box is provided, this auxiliary contact box overall structure is simple, can accurately reflect the real-time running state of circuit breaker fast.
Solve above-mentioned technical problem, the utility model discloses the technical scheme who adopts as follows.
A circuit breaker auxiliary contact box, comprising:
the circuit breaker comprises a box body, a hinge support and a circuit breaker, wherein one end of the box body is opened and serves as a connecting end connected with the circuit breaker, a support is arranged on the outer wall of the other end of the box body, an identification window is arranged on the support, and a hinge support is arranged in the box body;
one end of the rotating plate is hinged with the hinged support through a fixed pin, and the other end of the rotating plate swings back and forth around the fixed pin;
one end of the linkage rod is used for being in linkage connection with a switching-on and switching-off mechanism of the circuit breaker, and the other end of the linkage rod extends into the box body from the connecting end of the box body and is propped against the rear plate surface of the swinging end of the rotating plate;
the rotor is hinged in the support through a connecting pin, and a switching-on signboard and a switching-off signboard which are opposite to the sign window and are distributed in an included angle mode are arranged on the front side of the rotor;
the pressing rod can slide back and forth, the inner end of the pressing rod abuts against the swinging end of the rotating plate, the outer end of the pressing rod extends into the bracket to push the rear side of the rotor, and the rotor can be turned over around the connecting pin up and down through the back and forth sliding of the pressing rod so as to realize the switching of the switching-on signboard and the switching-off signboard;
the at least one microswitch is arranged in the box body, and the microswitch is triggered when the rotating plate swings to the back side;
the reset spring is sleeved on the pressure rod and provides backward reset force for the pressure rod, so that the swinging end of the rotating plate can be reset by backward thrust to realize the rotation of the rotating plate.
On the basis of the technical scheme, the utility model discloses can do following improvement:
the support with be equipped with the cushion between the box body, open on the cushion have with the guiding hole that the depression bar corresponds.
The support of the utility model is a square tube.
The included angle between the closing signboard and the opening signboard of the utility model is 90-110 degrees.
Be equipped with insulating gasket between the inner wall of micro-gap switch and box body.
The box body is made of metal material.
Compared with the prior art, the utility model discloses the technique has following advantage:
(1) the auxiliary contact box of the circuit breaker can be linked with the circuit breaker, has simple integral structure, few transmission parts, sensitive response and high reliability, and accurately displays the switching-off and switching-on states of the circuit breaker, thereby quickly and accurately reflecting the real-time operation condition of the circuit breaker and reducing the occurrence of accidents;
(2) the auxiliary contact box of the circuit breaker is made of metal materials, has good flame retardance and high protection level, thereby improving the safety.
Drawings
The invention will be described in detail with reference to the drawings and specific embodiments
Fig. 1 is a schematic structural view of an auxiliary contact box of the circuit breaker in an opening state according to the embodiment;
fig. 2 is a right-view partial cutaway view of the auxiliary contact box of the circuit breaker in the opening state according to the embodiment;
fig. 3 is a top partial cutaway view of the auxiliary contact box of the circuit breaker in the opening state according to the embodiment;
fig. 4 is a schematic structural view of the auxiliary contact box of the circuit breaker in the closing state according to the embodiment;
fig. 5 is a right partial cutaway view of the auxiliary contact box of the circuit breaker in the closing state according to the present embodiment;
fig. 6 is a top partial cutaway view of the auxiliary contact box of the circuit breaker in the closing state according to this embodiment.
Reference numbers on the drawings: 1-box body, 2-bracket, 3-sign window, 4-hinged support, 5-rotating plate, 6-fixed pin, 7-linkage rod, 8-rotor, 9-connecting pin, 10-closing sign, 11-opening sign, 12-pressure bar, 13-microswitch, 14-reset spring, 15-cushion block, 16-insulating spacer.
Detailed Description
Referring to fig. 1 to 3, the auxiliary contact box of the circuit breaker of the embodiment includes:
the circuit breaker comprises a box body 1, wherein the rear end of the box body 1 is opened and serves as a connecting end connected with a circuit breaker, a support 2 is arranged on the outer wall of the front end of the box body 1, an identification window 3 is arranged on the support 2, and a hinged support 4 is arranged in the box body 1;
one end of the rotating plate 5 is hinged with the hinged support 4 through a fixed pin 6, and the other end swings back and forth around the fixed pin 6;
one end of the linkage rod 7 is used for being in linkage connection with a switching-on and switching-off mechanism of the circuit breaker, and the other end of the linkage rod extends into the box body 1 from the connecting end of the box body 1 and is pressed on the rear plate surface of the swinging end of the rotating plate 5;
the rotor 8 is hinged in the support 2 through a connecting pin 9, and a closing signboard 10 and an opening signboard 11 which are opposite to the sign window 3 and distributed at an included angle are arranged on the front side of the rotor 8; in order to distinguish the operation condition of the circuit breaker more obviously, red paint is coated on the closing signboard and green paint is coated on the opening signboard in the embodiment.
The pressure lever 12 can slide back and forth, the inner end of the pressure lever abuts against the swinging end of the rotating plate 5, the outer end of the pressure lever extends into the bracket 2 to push the rear side of the rotor 8, and the rotor 8 can be turned up and down around the connecting pin 9 through the back and forth sliding of the pressure lever to realize the switching of the switching-on signboard 10 and the switching-off signboard 11;
five micro switches 13 arranged in parallel are arranged in the box body 1, and the micro switches 13 are triggered when the rotating plate 8 swings to the back; the number of the micro switches in the embodiment can be correspondingly increased or decreased according to actual needs; the microswitch is used for being electrically connected with the indicating lamp, and can display the opening and closing states of the circuit breaker through the indicating lamp.
And the return spring 14 is sleeved on the compression bar 12, so that the swinging end of the rotating plate 5 can be subjected to backward thrust to realize the return of the rotating plate.
Therefore, the auxiliary contact box of the circuit breaker in the embodiment can be linked with the circuit breaker, the overall structure is simple, the number of transmission parts is small, the response is sensitive, the reliability is high, and the opening and closing states of the circuit breaker are accurately displayed, so that the real-time operation condition of the circuit breaker is quickly and accurately reflected, and the occurrence of accidents is reduced.
In the embodiment, the cushion block 15 is arranged between the support 2 and the box body 1, the cushion block 15 is provided with the guide hole corresponding to the pressure lever 12, and the cushion block 15 has a certain thickness, so that the guide hole has a certain guiding effect on the pressure lever, the shaking of the pressure lever 12 when extending out can be reduced, the pressure lever 12 can extend out more stably to push the rotor 8, and the accuracy of the auxiliary contact box is further improved; the thickness and the number of the cushion blocks can be increased or decreased correspondingly according to actual needs.
The support 2 in this embodiment is a square tube.
In this embodiment, the included angle between the closing signboard 10 and the opening signboard 11 is 100 °.
In this embodiment, an insulating spacer 16 is provided between the microswitch 13 and the inner wall of the case 1, thereby increasing the insulating property.
The box body 1 in the embodiment is made of metal materials, and compared with the existing box body made of plastic materials, the box body is high in strength, good in flame retardance and high in protection level, so that the safety is improved.
Referring to fig. 4 to 6, when the circuit breaker is switched on, the switching-on and switching-off mechanism of the circuit breaker drives the linkage rod 7 to extend forwards, the linkage rod 7 pushes the swinging end of the rotating plate 5 to swing forwards, the rotating plate 5 is separated from the contact of the micro switch 13, the pressure lever 12 correspondingly extends forwards and drives the rotor 8 to turn upwards, and at the moment, the switching-on signboard 10 on the rotor 8 is aligned with the marking window 3 on the bracket to indicate that the circuit breaker is in a switching-on state;
when the circuit breaker is in a brake-off state, the switching-on and switching-off mechanism of the circuit breaker drives the linkage rod 7 to retreat backwards, the swinging end of the rotating plate 5 swings backwards under the action of the elastic force of the reset spring 14, the rotating plate 5 is restored to be in top contact with the contact of the micro switch 13, the pressure rod 12 correspondingly retreats, the rotor 8 turns downwards under the action of self gravity, and at the moment, the brake-off signboard 11 on the rotor 8 is aligned with the identification window 3 on the bracket 2 to indicate that the circuit breaker is in the brake-off state.
The above embodiments of the present invention are not right the utility model discloses the limited protection scope, the utility model discloses an embodiment is not limited to this, all kinds of basis according to the above-mentioned of the utility model discloses an under the above-mentioned basic technical thought prerequisite of the utility model, right according to ordinary technical knowledge and the conventional means in this field the modification, replacement or the change of other multiple forms that above-mentioned structure made all should fall within the protection scope of the utility model.
Claims (6)
1. A circuit breaker auxiliary contact box, comprising:
the circuit breaker comprises a box body, a hinge support and a circuit breaker, wherein one end of the box body is opened and serves as a connecting end connected with the circuit breaker, a support is arranged on the outer wall of the other end of the box body, an identification window is arranged on the support, and a hinge support is arranged in the box body;
one end of the rotating plate is hinged with the hinged support through a fixed pin, and the other end of the rotating plate swings back and forth around the fixed pin;
one end of the linkage rod is used for being in linkage connection with a switching-on and switching-off mechanism of the circuit breaker, and the other end of the linkage rod extends into the box body from the connecting end of the box body and is propped against the rear plate surface of the swinging end of the rotating plate;
the rotor is hinged in the support through a connecting pin, and a switching-on signboard and a switching-off signboard which are opposite to the sign window and are distributed in an included angle mode are arranged on the front side of the rotor;
the inner end of the pressure rod is abutted against the swinging end of the rotating plate, the outer end of the pressure rod extends into the bracket to be abutted against the rear side of the rotor, and the rotor can be turned over around the connecting pin by the forward and backward sliding of the pressure rod so as to realize the switching of the switching-on signboard and the switching-off signboard;
the at least one microswitch is arranged in the box body, and the microswitch is triggered when the rotating plate swings to the back side;
the reset spring is sleeved on the pressure rod and provides backward reset force for the pressure rod, so that the swinging end of the rotating plate can be reset by backward thrust to realize the rotation of the rotating plate.
2. The box of claim 1, wherein a pad is disposed between the holder and the box, and a guide hole corresponding to the pressing rod is formed on the pad.
3. The circuit breaker auxiliary contact box of claim 1, wherein the cradle is a square tube.
4. The auxiliary contact box of a circuit breaker according to claim 1, wherein an included angle between the closing signboard and the opening signboard is 90 ° to 110 °.
5. The circuit breaker auxiliary contact box of claim 1, wherein an insulating gasket is disposed between the micro-switch and the inner wall of the box body.
6. The auxiliary contact box for circuit breakers of any one of claims 1 to 5, wherein said box body is made of metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021886921.XU CN213366466U (en) | 2020-09-02 | 2020-09-02 | Auxiliary contact box of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021886921.XU CN213366466U (en) | 2020-09-02 | 2020-09-02 | Auxiliary contact box of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213366466U true CN213366466U (en) | 2021-06-04 |
Family
ID=76148615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021886921.XU Active CN213366466U (en) | 2020-09-02 | 2020-09-02 | Auxiliary contact box of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213366466U (en) |
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2020
- 2020-09-02 CN CN202021886921.XU patent/CN213366466U/en active Active
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