CN206991968U - A kind of breaker auxiliary switch and the breaker with auxiliary switch - Google Patents

Abstract

The utility model discloses a kind of breaker auxiliary switch, including at least one auxiliary switch monomer, auxiliary switch monomer includes the box body with cavity structure and covers the lid of box body, at least one microswitch and the actuated piece for activate microswitch are installed in box body, actuated piece uses cam structure, and actuated piece includes the cam body with axially extending bore and at least one actuator surface being located on cam body；The auxiliary switch uses modular structure design, can be according to customer demand, there is provided the switching signal of any number；Ensure that microswitch is not corroded by the external world simultaneously, the extending life cycle；The functional reliability of microswitch is high, stability is strong；The utility model additionally provides a kind of breaker with the auxiliary switch, and the breaker is embodied as the switching signal that client provides any number, has good autgmentability by the mating connection between one or more auxiliary switch monomers and breaker.

Description

Auxiliary switch for circuit breaker and circuit breaker with auxiliary switch

technical field

The utility model belongs to the technical field of low-voltage electrical component design, in particular to an auxiliary switch for a circuit breaker and a circuit breaker with the auxiliary switch.

Background technique

The auxiliary switch is a part of the main switch, which is configured in high-voltage or medium-voltage circuit breakers, isolating switches and other electrical equipment as the opening, closing, signal control and interlocking protection functions of the secondary control circuit, and can also be used as a combination switch and transfer switch is used. The circuit breaker auxiliary switch refers to the auxiliary switch accessories configured in the circuit breaker. The circuit breaker usually needs to be equipped with an auxiliary switch. The function of the auxiliary switch is to respond to the action of the circuit breaker operating mechanism and provide circuit breaker branching Electrical indication signal of the closing operating state.

In the prior art, the auxiliary switch usually includes a micro switch. However, the micro switch is exposed to the outside, which is easily affected by the corrosive environment and accelerates the aging of the auxiliary switch; A micro switch combined auxiliary switch, comprising a support seat, a driving protruding shaft, a micro switch group and a driving arm, the micro switch group is fixed on the support seat, and the driving protruding shaft is rotatably connected to the support seat and connected to the micro switch Group cooperation, through the combination of the drive cam shaft and the micro switch group, the drive cam shaft can be turned on and off to press or release the button of the micro switch group to complete the on-off switch, and one end of the drive arm is coaxially connected to the drive cam shaft to Drive the camshaft to rotate; the structure of this patent is simple, but the micro switch is completely exposed to the outside, which is easy to be corroded. In addition, due to the limitation of the patent structure, the number of micro switches cannot be set arbitrarily according to the actual needs of customers.

Therefore, an auxiliary switch has appeared. In addition to the micro switch, the auxiliary switch usually includes a transmission part. The micro switch and the transmission part are installed in a housing together, and the housing is beneficial to protect the micro switch from corrosion. , prolong the service life; in the process of circuit breaker state transition, there is at least such a stage, that is, one end of the transmission part is in contact with the operating mechanism of the circuit breaker, the other end of the transmission part is in contact with the push rod of the micro switch, and the push rod of the micro switch When the rod is subjected to external force, its on-off state will change. When the external force is removed, the push rod will automatically reset, and at the same time the on-off state of the micro switch will return to the reset state, and the movement of the circuit breaker operating mechanism will be transmitted to one end of the transmission part. The other end of the component drives the push rod of the micro switch, thereby changing the on-off state of the micro switch, and providing electrical indication for the change of the operating state of the circuit breaker.

The Chinese invention patent with the patent authorization announcement number of CN101436493 proposes a circuit breaker auxiliary switch, which belongs to the technical field of low-voltage electrical accessories, and includes a pair of shells that cooperate with each other, a micro switch in the shell cavity of the shell, and the same The transmission part is arranged in the shell cavity of the casing, the first contact arm used to actuate the antenna of the micro switch is formed on the transmission part, and the first contact arm protruding out of the casing is formed for supplying the circuit breaker. The second contact arm actuated by the operating mechanism has first and second working surfaces for continuously touching the contact horns of the micro switch on the first contact arm, wherein the first working surface is formed on the upper section of the first contact arm On the top, while the second working surface is formed on the top surface of the first contact arm, through the mutual assistance of the two working surfaces, the micro switch is continuously touched. This patent is beneficial to protect the service life of the micro switch, and the switch structure is simple , easy to assemble, this patent can provide multiple micro switch signals according to customer needs, and at the same time can improve the safety and reliability of the action of the micro switch; but when the customer needs any number of micro switch signals, or when the required When the number of micro switch signals is relatively large, due to the limitation of the shell cavity space structure of the housing, the patented device cannot meet this demand and has limitations; at the same time, the coordination and connection between the various components of the device are cumbersome, and the installation has not reached In the true sense of convenience, redundancy may occur during use, resulting in unstable performance.

Utility model content

Purpose of the invention: In order to overcome the defects in the prior art that when the customer needs any number of micro-switch signals, the device cannot meet this demand, the installation is inconvenient, and the performance will be unstable due to redundancy during use. The utility model provides an auxiliary switch for a circuit breaker. The auxiliary switch adopts a modular structure design and can provide any number of switching signals according to customer needs; at the same time, it ensures that the micro switch is not corroded by the outside and prolongs the life cycle; the micro switch The utility model also provides a circuit breaker with the auxiliary switch, the circuit breaker realizes the customer's Provide any number of switching signals, with good scalability.

Technical solution: In order to solve the above technical problems, an auxiliary switch for a circuit breaker of the utility model includes at least one auxiliary switch unit, and the auxiliary switch unit includes a box body with a cavity structure and a cover body covering the box body , at least one micro switch and an actuator for actuating the micro switch are installed in the box body, the actuator adopts a cam structure, and the actuator includes a cam body with an axial through hole and a device At least one actuation surface on the cam body.

Further, a drive shaft is installed in the box body, the cam body is sleeved on the drive shaft through its axial through hole, a first axial through hole is opened in the middle of the box body, and one end of the drive shaft is connected to the The first axial through hole is mated and connected, and the middle position of the cover body is provided with a second axial through hole, and the other end of the drive shaft is mated and connected with the second axial through hole.

Further, the box body is symmetrically provided with a micro switch placement area on both sides of the first axial through hole, the micro switch is installed in the micro switch placement area, and each of the micro switch placement areas is provided with a A positioning shaft is set, and a positioning hole 1 that is matched and connected with the positioning shaft is opened on the micro switch.

Further, a drive part is provided on the end of the drive shaft connected to the first axial through hole, and a drive groove is provided in the end of the drive shaft connected to the second axial through hole, and the drive part and the drive The grooves are matched and connected to realize the connection of adjacent auxiliary switch monomers.

Further, the upper and lower sides of the first axial through hole are symmetrically provided with buckle holes, and the outer surface of the cover is provided with buckles matched with the buckle holes to realize the connection of adjacent auxiliary switch units.

Further, two positioning holes are symmetrically opened on the upper and lower sides of the first axial through hole, and the second positioning hole is located above the buckle hole, and the outer surface of the cover is provided with a positioning boss that cooperates with the second positioning hole , to realize the connection of adjacent auxiliary switch monomers.

Further, the box body is provided with a micro switch lead groove.

The utility model also proposes a circuit breaker with an auxiliary switch, including the auxiliary switch for the circuit breaker proposed in the above technical solution, and also includes a main shaft of the mechanism and a top plate of the mechanism. The auxiliary switch for the circuit breaker is installed above the top plate of the mechanism. The main shaft is located under the top plate of the mechanism, and there are connecting rods and wheel rods between the driving part of the auxiliary switch unit close to the main shaft of the mechanism and the main shaft of the mechanism;

The driving part is provided with a first through hole;

One end of the connecting rod is provided with a second through hole, and the other end of the connecting rod is provided with a third through hole;

One end of the wheel rod is provided with a waist-shaped groove, and the other end of the wheel rod is provided with a third axial through hole;

The wheel rod is sleeved on the main shaft of the mechanism through the third axial through hole, and the waist-shaped groove and the third through hole of the connecting rod are fitted and connected by the first screw so that the wheel rod and the connecting rod are connected. The second through hole of the rod is connected to the first through hole through a second screw so that the connecting rod and the driving part are connected in a fit manner.

Further, the bottom of the box body is provided with a clamping structure, and the clamping structure is longitudinally cut into a T-shaped structure, and a set of T-shaped slots is provided on the top plate of the mechanism, and the clamping structure is inserted into the wide opening of the T-shaped slot and Translate to the narrow opening position of the T-shaped slot to realize the connection between the auxiliary switch unit and the top plate of the mechanism.

Further, the bottom of the side of the box body is provided with a fixed boss, the fixed boss is provided with a fourth through hole, the top plate of the mechanism is provided with a group of fifth through holes, the gap between the fourth through hole and the fifth through hole is The connection between the auxiliary switch unit and the top plate of the mechanism is realized by fixing the connection with screws.

Beneficial effects: compared with the prior art, the utility model has the following advantages:

1. The auxiliary switch for circuit breaker of the present utility model provides any number of auxiliary switch units, and at least one micro switch is installed in the auxiliary switch unit, so as to provide users with any number of micro switch signals and ensure The micro switch is not subject to external corrosion, prolonging the life cycle;

2. In the auxiliary switch for a circuit breaker of the present utility model, the actuating member adopts a cam structure, and the cam structure includes a cam body and at least one actuating surface provided on the cam body, and the rotation of the drive shaft drives the rotation of the cam body, thereby realizing The actuation surface actuates the tentacles of multiple micro switches to provide users with any number of micro switch signals;

3. The auxiliary switch for circuit breaker of the utility model adopts a modular structure design, and the auxiliary switch is combined into one body, the design is simple and ingenious, and the installation is convenient;

4. In the auxiliary switch for a circuit breaker of the present utility model, a driving part is provided at one end of the driving shaft in the auxiliary switch unit, and a driving groove is provided in the other end of the driving shaft. When multiple auxiliary switch units are combined into one, the The driving part of one of the auxiliary switch units is placed opposite to the driving groove of the adjacent auxiliary switch unit, and the driving part is connected with the driving groove to realize the connection between the adjacent auxiliary switch units; the adjacent auxiliary switch The drive shafts of the single units are connected to each other. When the drive shafts of the outermost auxiliary switch units receive the signal transmitted by the external drive parts, the drive shafts of each auxiliary switch unit will rotate accordingly, and the rotation direction is the same, so as to provide users with Any number of micro-switch signals; the auxiliary switch unit has high reliability and stability;

5. In the auxiliary switch for circuit breaker of the present utility model, the box body of the adjacent auxiliary switch unit is connected with the cover body, specifically, the buckle on the cover body is connected with the bayonet hole on the box body, and the positioning on the cover body The boss is connected with the positioning hole on the box body, which further improves the stability of the auxiliary switch when it is working;

6. A circuit breaker with the auxiliary switch of the utility model, the circuit breaker realizes providing customers with any number of switching signals through the cooperative connection between one or more auxiliary switch monomers and the circuit breaker, and has good scalability.

Description of drawings

Fig. 1 is a schematic diagram of the assembly of a single auxiliary switch for a circuit breaker of the present invention.

Fig. 2 is a schematic diagram of the box structure of the auxiliary switch for the circuit breaker of the present invention.

Fig. 3 is a schematic diagram of the structure of the cover of the auxiliary switch for the circuit breaker of the present invention.

Fig. 4 is a first schematic diagram of the connection between the actuator and the drive shaft in the auxiliary switch for the circuit breaker of the present invention.

Fig. 5 is the second schematic diagram of the connection between the actuator and the drive shaft in the auxiliary switch for the circuit breaker of the present invention.

Fig. 6 is a schematic diagram of the assembly of the auxiliary switch unit for the circuit breaker of the present invention and the structure of the circuit breaker.

Fig. 7 is a structural schematic diagram of a circuit breaker with an auxiliary switch of the present invention.

Explanation of reference numbers:

1. Box body; 100, first axial through hole; 101, positioning shaft; 102, buckle hole; 103, positioning hole two; 104, micro switch lead groove; 105, clamping structure; 106, fixed boss ; 107, the fourth through hole; 108, the connection end one; 2, the cover body; 200, the second axial through hole; 201, the buckle; 202, the positioning boss; 203, the connection end two; 3, the micro switch 300, positioning hole one; 4, actuator; 400, cam body; 401, first actuating surface; 402, second actuating surface; 5, driving shaft; 500, driving part; 501, driving groove; 502, the first through hole; 6, the main shaft of the mechanism; 7, the wheel rod; 700, the waist groove; 8, the connecting rod; 9, the top plate of the mechanism; 900, the T-shaped slot; 901, the fifth through hole; 10, the first Screw; 11, the second screw; 1000, the first auxiliary switch unit; 2000, the second auxiliary switch unit; 3000, the third auxiliary switch unit.

detailed description

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

Embodiment one:

An auxiliary switch for a circuit breaker in this embodiment, referring to Fig. 1, includes an auxiliary switch unit, the auxiliary switch unit includes a box body 1 with a cavity structure and a cover body 2 covering the box body 1, in the box body 1 is equipped with at least one micro switch 3;

Referring to Fig. 2, the four ends of the box body 1 are provided with connection end-108, and the connection end-108 is provided with through holes. The connection end two 203 is provided with through holes on the connection end two 203, the connection end one 108 is connected with the connection end two 203, and the through holes on the connection end two 203 and the connection end one 108 are sequentially penetrated by screws. hole, so that the box body and the cover are connected together, so that the internal micro switch is packaged inside the box body and is not corroded by the outside world;

A micro switch lead groove 104 is opened on the box body 1, and the number of the micro switch lead groove 104 is consistent with that of the micro switch placement area, and the lead wire of the internal micro switch 3 is drawn out from the micro switch lead groove 104;

An actuating member 4 for actuating the antennae of the microswitch 3 is also installed in the box body 1. Referring to FIGS. 4 and 5, the actuating member 4 includes a cam body 400 with an axial through hole and a At least one actuation surface on 400, this actuation surface comprises the first actuation surface 401 and the second actuation surface 402 that are arranged on the cam body 400, this actuation surface is used for actuating the tentacles of microswitch 3;

A drive shaft 5 is also installed in the box body 1, and the cam body 400 is sleeved on the drive shaft 5 through its axial through hole. The rotation of the drive shaft 5 drives the cam body 400 to rotate, thereby driving the movement of the actuating surface on the cam body 400. , the actuating surface moves to actuate the tentacles of the micro switch 3; the drive shaft 5 is driven to rotate through the external driving member, and the rotation of the drive shaft 5 drives the cam body 400 to rotate, thereby driving the movement of the actuating surface on the cam body 400;

A first axial through hole 100 is opened in the middle of the box body 1, a second axial through hole 200 is opened in the middle of the cover 2, one end of the drive shaft 5 is mated with the first axial through hole 100, and the drive shaft 5 The other end is mated and connected with the second axial through hole 200; there are two micro switch placement areas in the box body 1, and the two micro switch placement areas are symmetrically arranged on both sides of the first axial through hole 100, and the micro switch placement areas are arranged symmetrically on both sides of the first axial through hole 100. The switch 3 is installed in the placement area of the micro switch, one end of the drive shaft 5 is connected with the first axial through hole 100, the other end of the drive shaft 5 is connected with the second axial through hole 200, and the cam body 400 passes through the axial through hole 200. The hole is sleeved on the drive shaft 5, and the actuating surface provided on the cam body 400 includes a first actuating surface 401 and a second actuating surface 402, and the first actuating surface 401 and the second actuating surface 402 are relative to the cam body. 400 is centrally symmetrical, and the two micro switch placement areas are respectively located on both sides of the cam body 400. When the drive shaft 5 rotates, the cam body 400 is driven to rotate, and the first actuating surface 401 and the second actuating surface 401 on the cam body 400 The surface 402 rotates in the circumferential direction with the cam body 400. During the movement, it will continuously actuate the antennae of the micro switch 3 placed in the micro switch placement area, and finally transmit the circuit breaker opening signal or closing signal to the micro switch. switch;

One or two micro switches 3 can be determined as required; when one micro switch is installed, place the micro switch 3 in one of the micro switch placement areas, when the cam body 400 rotates with the drive shaft 5 The first actuating surface 401 and the second actuating surface 402 provided on the cam body 400 will sequentially actuate the antennae of the microswitch 3 during the movement, and finally transmit the opening or closing signal of the circuit breaker to the microswitch. When two micro switches are installed, place the two micro switches 3 in the placement areas of the two micro switches respectively. When the cam body 400 rotates with the drive shaft 5, the first cam body 400 The first actuating surface 401 and the second actuating surface 402 will continuously actuate the antennae of the two microswitches 3 during the movement, and finally transmit the circuit breaker opening or closing signal to the microswitch; the circuit breaker main shaft transmits When opening or closing a signal, the external drive part transmits the signal to the drive shaft 5, the drive shaft 5 rotates, and the rotation of the drive shaft 5 drives the rotation of the cam body 400, thereby driving the movement of the actuating surface on the cam body 400, thereby realizing the actuation The antennae of the micro switch 3.

Referring to Fig. 2, a group of positioning shafts 101 are provided in the micro switch placement area. Referring to Fig. 1, the micro switch 3 is provided with a positioning hole 300 cooperating with the positioning shaft 101, and positioning holes 1 300 and positioning shaft 101 The quantity is the same, and the quantity can be determined according to the needs. The first positioning hole 300 is connected with the positioning shaft 101 so that the micro switch 3 is fixed in the micro switch placement area.

Embodiment two:

An auxiliary switch for a circuit breaker in this embodiment is composed of a group of auxiliary switch monomers. The auxiliary switch monomer adopts the auxiliary switch monomer proposed in Embodiment 1, and the number of auxiliary switch monomers is set to n (n is Natural number);

Referring to Figure 5, one end of the driving shaft 5 installed in the auxiliary switch unit is provided with a driving part 500, referring to Figure 4, the other end of the driving shaft 5 is provided with a driving groove 501, referring to Figure 1, the driving shaft 5 is provided with a driving One end of the groove 501 is mated with the second axial through hole 200 on the cover body 2, and one end of the drive shaft 5 provided with the driving part 500 is mated with the first axial through hole 100 on the box body 1;

Referring to Figure 7, when n auxiliary switch units are connected in combination, the cover of the first auxiliary switch unit faces outward, and the box body of the first auxiliary switch unit and the second auxiliary switch unit The cover is placed opposite to each other, the driving part of the first auxiliary switch unit is connected with the first axial through hole on the box body of the first auxiliary switch unit, and the driving groove of the second auxiliary switch unit is connected with the first auxiliary switch unit. The second axial through hole on the cover of the two auxiliary switch monomers is matched and connected, and the driving part of the first auxiliary switch monomer is matched with the driving groove of the second auxiliary switch monomer to realize the connection of the first auxiliary switch. The auxiliary switch unit is connected with the second auxiliary switch unit; similarly, the box body of the second auxiliary switch unit is placed opposite to the cover of the third auxiliary switch unit, and the drive of the second auxiliary switch unit The part is matched with the first axial through hole on the box body of the second auxiliary switch unit, and the driving groove of the third auxiliary switch unit is connected with the second shaft on the cover body of the third auxiliary switch unit. Fitting connection to the through hole, the driving part of the second auxiliary switch unit is matched with the driving groove of the third auxiliary switch unit, so as to realize the connection between the second auxiliary switch unit and the third auxiliary switch unit; By analogy, the n-1th auxiliary switch unit is connected to the nth auxiliary switch unit to realize the mutual connection between adjacent auxiliary switch units, and to realize the combination of n auxiliary switch units to form an auxiliary switch. The driving part 500 of the nth auxiliary switch unit is connected to the external drive structure, the external drive structure transmits the opening or closing signal of the circuit breaker, and the external drive structure drives the auxiliary switch unit connected to it (the nth auxiliary switch unit) The drive part of the drive unit rotates, thereby driving the drive shaft 5 of the nth auxiliary switch unit to rotate. Since the drive shafts of adjacent auxiliary switch units are connected to each other in the n auxiliary switch units, the n-1th auxiliary switch The drive shaft 5 of the single unit rotates with the drive shaft 5 of the nth auxiliary switch unit, and so on, the drive shaft 5 of the first auxiliary switch unit rotates accordingly, and the direction of rotation of the drive shaft 5 of the n auxiliary switch unit are consistent, so as to drive the cam body in the respective auxiliary switch unit to rotate, thereby realizing the actuation surface in the respective auxiliary switch unit to actuate the internal micro switch;

In addition, on the box body 1 of the auxiliary switch unit, there are buckle holes 102 symmetrically located on the upper and lower sides of the first axial through hole 100. Referring to FIG. The connected buckle 201, the buckle hole 102 on the box body 1 of the first auxiliary switch unit is matched with the buckle 201 on the cover body 2 of the second auxiliary switch unit, so that the first auxiliary switch The monomer is fixedly connected with the second auxiliary switch monomer; on the box body 1 of the auxiliary switch monomer, there are two positioning holes 103 symmetrically located on the upper and lower sides of the first axial through hole 100, and the second positioning hole 103 is located on the card Above the button hole 102, on the outer surface of the cover body 2 of the auxiliary switch monomer is provided a positioning boss 202 that is connected with the positioning hole 2 103, and the positioning hole 2 103 on the box body 1 of the first auxiliary switch monomer Cooperate and connect with the positioning boss 202 on the cover body 2 of the second auxiliary switch unit, so that the first auxiliary switch unit and the second auxiliary switch unit are fixedly connected, further improving the adjacent auxiliary switch unit. The monomers are fixedly connected; by analogy, the buckle hole 102 on the box body 1 of the second auxiliary switch monomer is matched with the buckle 201 on the cover body 2 of the third auxiliary switch monomer, The positioning hole 2 103 on the box body 1 of the second auxiliary switch monomer is matched with the positioning boss 202 on the cover body 2 of the third auxiliary switch monomer to realize the connection between the second auxiliary switch monomer and the third auxiliary switch monomer. Auxiliary switch monomers are connected; by analogy, the n-1th auxiliary switch monomer is fixedly connected to the nth auxiliary switch monomer.

Embodiment three:

A circuit breaker with an auxiliary switch in this embodiment includes an auxiliary switch for a circuit breaker. The auxiliary switch for a circuit breaker is based on the auxiliary switch for a circuit breaker proposed in Embodiment 1. The auxiliary switch for a circuit breaker includes a single auxiliary switch; refer to the figure 6. The circuit breaker also includes a mechanism top plate 9 and a mechanism main shaft. The mechanism main shaft is placed below the mechanism top plate 9 (not shown in the figure), and the auxiliary switch unit is installed above the mechanism top plate 9;

Referring to Fig. 2, a clamping structure 105 is provided at the bottom of the box body 1 of the auxiliary switch unit, and the clamping structure 105 is longitudinally cut into a T-shaped structure. The T-shaped slot 900, the T-shaped slot 900 includes a wide-mouthed slot and a narrow-mouthed slot communicating with the wide-mouthed slot, and the clamping structure 105 is inserted into the wide-mouthed position of one of the T-shaped slots 900 and translated to the narrow mouth of the T-shaped slot 900 position, so that the clamping structure 105 can be clamped into the T-shaped slot 900 to realize the fixed connection between the auxiliary switch unit and the top plate 9 of the mechanism;

The box body 1 side bottom of auxiliary switch monomer is provided with fixed boss 106, and this fixed boss 106 is provided with the 4th through hole 107, is provided with a group of 5th through hole 901 on mechanism top plate 9, fixes the boss The fourth through hole 107 of 106 is aligned with the fifth through hole 901 on the top plate 9 of the mechanism, passes through the fourth through hole 107 and the fifth through hole 901 successively by screws, and is fixed between the fixed boss 106 and the top plate 9 of the mechanism. connection to realize the fixed connection between the auxiliary switch unit and the mechanism top plate 9 again;

There is an external driving part between the auxiliary switch unit and the main shaft of the mechanism. One end of the external driving part is connected to the main shaft of the mechanism, and the other end of the external driving part is connected to the driving part of the auxiliary switch unit. The main shaft of the mechanism drives the external driving part, and the external driving part Drive the driving part of the auxiliary switch unit, the drive shaft of the auxiliary switch unit is driven to rotate at the same time, thereby driving the rotation of the cam body, and the rotation of the cam body drives the rotation of the actuating surface arranged on the cam body to realize the actuation of the micro switch tentacles.

Embodiment four:

A circuit breaker with an auxiliary switch in this embodiment includes an auxiliary switch for a circuit breaker. The auxiliary switch for a circuit breaker is based on the auxiliary switch for a circuit breaker based on the second embodiment. The auxiliary switch for a circuit breaker is composed of a group of auxiliary switches. Assembled, the number of auxiliary switch monomers is set to n (n is a natural number); referring to Figure 7, the circuit breaker also includes a mechanism top plate 9 and a mechanism main shaft 6, the auxiliary switch for the circuit breaker is installed above the mechanism top plate 9, and the mechanism main shaft 6 placed under the top plate 9 of the mechanism;

Referring to Fig. 2, a clamping structure 105 is provided at the bottom of the box body 1 of the auxiliary switch unit, and the clamping structure 105 is longitudinally cut into a T-shaped structure. The T-shaped slot 900, the T-shaped slot 900 includes a wide-mouthed slot and a narrow-mouthed slot communicating with the wide-mouthed slot, the clamping structure 105 is inserted into the wide-mouthed position of the T-shaped slot 900 and translated to the narrow-mouthed position of the T-shaped slot 900 , the clamping structure 105 is clamped into the T-shaped slot 900 to realize the connection between the auxiliary switch unit and the top plate 9 of the mechanism;

The box body 1 side bottom of auxiliary switch monomer is provided with fixed boss 106, and this fixed boss 106 is provided with the 4th through hole 107, is provided with a group of 5th through hole 901 on mechanism top plate 9, fixes the boss The fourth through hole 107 of 106 is aligned with the fifth through hole 901 on the top plate 9 of the mechanism, passes through the fourth through hole 107 and the fifth through hole 901 successively by screws, and is fixed between the fixed boss 106 and the top plate 9 of the mechanism. connection to realize the fixed connection between the auxiliary switch unit and the mechanism top plate 9 again;

The T-shaped slots 900 are evenly arranged on the top plate 9 of the mechanism, and the direction of the T-shaped slots 900 is consistent. The number of T-shaped slots 900 is not less than the number of auxiliary switch units, and the auxiliary switch with n auxiliary switch units is installed on the top plate of the mechanism. 9, the clamping structure 105 of each auxiliary switch unit just snaps into the corresponding T-shaped slot 900, so as to realize the fixed connection between each auxiliary switch and the mechanism top plate 9;

The fifth through holes 901 are evenly arranged on the mechanism top plate 9, the number of the fifth through holes 901 is not less than the number of auxiliary switch monomers, the auxiliary switch with n auxiliary switch monomers is installed on the mechanism top plate 9, and each auxiliary switch The fourth through hole 107 of the fixed boss 106 of the switch unit is aligned with the corresponding fifth through hole 901 on the top plate 9 of the mechanism, and the fourth through hole 107 of each auxiliary switch unit is connected to the fifth through hole 901 of the top plate 9 of the mechanism. The connection between the auxiliary switch monomers and the top plate 9 of the mechanism is realized by screws; when the clamping structures 105 of each auxiliary switch monomer are snapped into the corresponding T-shaped slots 900, the fixed bosses 106 of each auxiliary switch monomer The fourth through hole 107 is just aligned with the corresponding fifth through hole 901 on the top plate 9 of the mechanism;

The auxiliary switch with n auxiliary switch monomers is installed on the mechanism top plate 9, and the nth auxiliary switch monomer is set close to the auxiliary switch monomer of the mechanism main shaft 6, and the driving part 500 of the auxiliary switch monomer close to the mechanism main shaft 6 is connected to the An external driving part is arranged between the mechanism main shaft 6, and the external driving part includes a connecting rod 8 and a wheel bar 7; referring to Fig. type structure, the top of the connecting rod 8 is provided with a second through hole, and the second through hole of the connecting rod 8 is connected with the first through hole 502 of the driving part 500 of the nth auxiliary switch unit through the second screw 11. The connecting rod 8 and the driving part 500 are connected in cooperation; the bottom end of the connecting rod 8 is provided with a third through hole, and one end of the wheel rod 7 is provided with a waist-shaped groove 700, and the waist-shaped groove 700 of the wheel rod 7 and the third through hole of the connecting rod 8 The first screw 10 is used to connect the wheel rod 7 with the connecting rod 8; the other end of the wheel rod 7 is provided with a third axial through hole, and the wheel rod 7 is sleeved on the mechanism main shaft 6 through the third axial through hole , circuit breaker opening or closing, the main shaft 6 of the mechanism of the circuit breaker transmits the opening or closing signal of the circuit breaker, the main shaft 6 of the mechanism of the circuit breaker rotates, drives the wheel rod 7 to rotate, the rotation of the wheel rod 7 makes the connecting rod 8 rotate, and the connecting rod 8 rotates. The rotation of the rod 8 drives the drive part 500 on the drive shaft 5 of the nth auxiliary switch unit to rotate, and the rotation of the drive shaft 5 drives the rotation of the cam body 400 sleeved on it, and finally realizes the actuation of the antenna of the micro switch. The rotation of the drive shaft 5 of an auxiliary switch unit drives the rotation of the drive shafts in other n-1 auxiliary switch units. The rotation direction of the drive shafts of all auxiliary switch units is the same. The rotation of the cam body realizes the actuation of the antennae of the micro switch;

Referring to Fig. 7, set n=3, the auxiliary switch includes 3 auxiliary switch units, and the 3 auxiliary switch units are respectively represented as: the first auxiliary switch unit 1000, the second auxiliary switch unit 2000 and the third auxiliary switch unit body 3000, the cover of the first auxiliary switch unit 1000 faces outward, the box body of the first auxiliary switch unit 1000 is placed opposite to the cover of the second auxiliary switch unit 2000, and the cover of the second auxiliary switch unit 2000 The box body is placed opposite to the cover of the third auxiliary switch unit 3000, the first auxiliary switch unit 1000 and the second auxiliary switch unit 2000 are fixedly connected by the above method, the second auxiliary switch unit 2000 and the third auxiliary switch unit The switch units 3000 are fixedly connected by the above method, the driving part of the third auxiliary switch unit 3000 is connected to the connecting rod 8, the connecting rod 8 is connected to the wheel rod 7, and the wheel rod 7 is sleeved on the main shaft 6 of the mechanism; the circuit breaker When opening or closing, the main shaft 6 of the mechanism drives the wheel rod 7, and the wheel rod 7 drives the driving part 500 of the third auxiliary switch unit 3000, and the driving shaft 5 of the third auxiliary switch unit 3000 is driven to rotate at the same time, thereby driving the first The rotation of the cam body 400 of the three auxiliary switch monomers 3000, the rotation of the cam body 400 drives the rotation of the actuating surface arranged on the cam body to realize the actuation of the antenna of the micro switch in the third auxiliary switch monomer 3000, the third The driving groove of the auxiliary switch unit 3000 is matched with the driving part of the second auxiliary switch unit 2000, and the driving groove of the second auxiliary switch unit 2000 is matched with the driving part of the first auxiliary switch unit 1000. The rotation of the drive shaft of the auxiliary switch unit 3000 drives the rotation of the drive shaft of the second auxiliary switch unit 2000, the rotation of the drive shaft of the second auxiliary switch unit 2000 drives the rotation of the drive shaft of the first auxiliary switch unit 1000, and the rotation of the first auxiliary switch unit The drive shafts of the unit 1000, the second auxiliary switch unit 2000, and the third auxiliary switch unit 3000 rotate in the same direction, and the antennae of the micro switches in each auxiliary switch unit are all triggered to provide users with multiple micro switches. Signal.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (10)

1. An auxiliary switch for a circuit breaker, characterized in that: it includes at least one auxiliary switch monomer, and the auxiliary switch monomer includes a box body (1) with a cavity structure and a cover body (1) covering the box body (1) 2), at least one microswitch (3) and an actuator (4) for actuating the microswitch (3) are installed in the box body (1), and the actuator (4) adopts a cam structure, the actuating member (4) includes a cam body (400) having an axial through hole and at least one actuating surface provided on the cam body (400). 2. The auxiliary switch for circuit breaker according to claim 1, characterized in that: a drive shaft (5) is installed in the box body (1), and the cam body (400) is sleeved on the On the driving shaft (5), a first axial through hole (100) is opened in the middle position of the box body (1), and one end of the driving shaft (5) is mated with the first axial through hole (100). A second axial through hole (200) is opened in the middle of the cover body (2), and the other end of the drive shaft (5) is matedly connected with the second axial through hole (200). 3. The auxiliary switch for circuit breaker according to claim 2, characterized in that: inside the box body (1) there are micro switch placement areas symmetrically on both sides of the first axial through hole (100), and the micro switch The switch (3) is installed in the placement area of the micro switch, and a group of positioning shafts (101) are arranged in the placement area of the micro switch. positioning hole one (300). 4. The auxiliary switch for circuit breaker according to claim 3, characterized in that: a driving part (500) is provided on the end of the driving shaft (5) connected to the first axial through hole (100), and the driving part (500) is A drive groove (501) is provided inside the end of the shaft (5) connected to the second axial through hole (200), and the drive part (500) is matched with the drive groove (501) to realize the adjacent auxiliary switch Single connection. 5. The auxiliary switch for circuit breaker according to claim 4, characterized in that: the upper and lower sides of the first axial through hole (100) are symmetrically provided with buckle holes (102), and the outer surface of the cover (2) A buckle (201) matched with the buckle hole (102) is provided on the surface to realize the connection of adjacent auxiliary switch units. 6. The auxiliary switch for a circuit breaker according to claim 5, characterized in that: the first axial through hole (100) is symmetrically opened with two positioning holes (103) on the upper and lower sides, and the second positioning hole (103) Located above the buckle hole (102), the outer surface of the cover (2) is provided with a positioning boss (202) that cooperates with the second positioning hole (103) to realize the connection of adjacent auxiliary switch units. 7. The auxiliary switch for a circuit breaker according to claim 6, characterized in that: the box body (1) is provided with a lead wire groove (104) for a micro switch. 8. A circuit breaker with an auxiliary switch, characterized in that it comprises the auxiliary switch for a circuit breaker according to any one of claims 1 to 7, a mechanism main shaft (6) and a mechanism top plate (9), and the auxiliary switch for a circuit breaker Installed above the mechanism top plate (9), the mechanism main shaft (6) is located below the mechanism top plate (9), and the driving part (500) of the auxiliary switch unit close to the mechanism main shaft (6) and the mechanism main shaft (6) are provided There are connecting rods (8) and wheel bars (7); The driving part (500) is provided with a first through hole (502); One end of the connecting rod (8) is provided with a second through hole, and the other end of the connecting rod (8) is provided with a third through hole; One end of the wheel rod (7) is provided with a waist-shaped groove (700), and the other end of the wheel rod (7) is provided with a third axial through hole; The wheel rod (7) is sleeved on the mechanism main shaft (6) through the third axial through hole, and the first screw ( 10) Fitting connection makes the wheel bar (7) and the connecting rod (8) connected, and the second through hole of the connecting rod (8) is connected with the first through hole (502) through the second screw (11) so that The connecting rod (8) and the driving part (500) are matched and connected. 9. The circuit breaker with auxiliary switch according to claim 8, characterized in that: The bottom of the box body (1) is provided with a clamping structure (105), and the clamping structure (105) is longitudinally cut into a T-shaped structure, and a group of T-shaped grooves (900) are provided on the top plate (9) of the mechanism, The clamping structure (105) is inserted into the wide opening position of the T-shaped slot (900) and translated to the narrow opening position of the T-shaped slot (900), so as to realize the connection between the auxiliary switch unit and the mechanism top plate (9). 10. The circuit breaker with auxiliary switch according to claim 9, characterized in that: The bottom of the side of the box (1) is provided with a fixed boss (106), the fixed boss (106) is provided with a fourth through hole (107), and a group of fifth through holes are provided on the top plate of the mechanism (9). The hole (901), the fourth through hole (107) and the fifth through hole (901) are fixedly connected by screws to realize the connection between the auxiliary switch unit and the mechanism top plate (9).