CN202339893U - Electric switch-on and switch-off device for small breaker - Google Patents

Abstract

This utility model discloses an electric opening and closing device for miniature circuit breakers, including a screw, a drive mechanism for driving the screw to rotate, and a lever mechanism that reciprocates along the screw's direction under the drive of the screw. This utility model has a relatively simple structure, occupies little space, and is suitable not only for hydraulic electromagnetic circuit breakers but also for traditional C45 type circuit breakers, exhibiting a wide range of applications and excellent performance.

Description

An electric opening and closing device used in a small circuit breaker

technical field

The utility model belongs to the technical field of structural design of small circuit breakers, in particular to an electric opening and closing device used in small circuit breakers.

Background technique

The hydraulic electromagnetic circuit breaker is a relatively advanced new generation of circuit breaker. Because the hydraulic electromagnetic tripping device is used, the overload trip and short circuit trip can be integrated, so it is also called the full electromagnetic circuit breaker, and it has different functions. Affected by the ambient temperature, it always maintains 100% of the rated capacity, and can be closed immediately after tripping. The tripping time of the circuit breaker requires a wide range of options. There are various characteristic curves to choose from, and the characteristic curves can also be customized according to user needs. System, stable and reliable work, long life and other advantages.

Hydraulic electromagnetic molded case circuit breaker is mainly used in railway signal power supply screen and computer peripheral equipment, industrial automation device, marine electrical system, elevator control system, integrated protection of short circuit and overload, and can be used as infrequent connection and disconnection of lines It is suitable for civil, industrial, commercial, military and other departments.

However, at present, the traditional small hydraulic electromagnetic circuit breakers need to be manually operated, and cannot be opened and closed automatically, nor can they be remotely controlled, which cannot meet the current development needs of intelligent and remote control, and there is an urgent need for improvement in its structure. place.

Utility model content

The purpose of the utility model is to provide an electric opening and closing device for a small circuit breaker capable of automatic opening and closing.

The technical solution to realize the purpose of this utility model is: an electric opening and closing device used in a small circuit breaker, including a screw, a driving mechanism for driving the screw to rotate, and driven by the screw, it can reciprocate along the setting direction of the screw. Moving lever mechanism.

In the above solution, the driving mechanism includes a motor.

In the above solution, the drive mechanism further includes a gear assembly, and the motor drives the screw to reciprocate through the gear assembly.

In the above solution, the motor is arranged above the screw, and the gear assembly includes a driving gear fixed on the output shaft of the motor, a driven gear fixed on one side of the screw, and a gear for linkage between the driving gear and the driven gear. Linkage gear.

In the above solution, the lever mechanism includes a shaft sleeve provided with a screw hole and a lever assembly arranged on the shaft sleeve, the shaft sleeve is sleeved on the screw through the screw hole, and the shaft sleeve is arranged along the central axis of the screw direction to reciprocate, and the driving rod assembly reciprocates along with the movement of the shaft sleeve.

In the above solution, the lever assembly includes a lever arranged on the shaft sleeve for rotation, a limit lever for limiting the lever, and an elastic member for providing a reset force for the limit lever; the lever's One end is provided with two toggling bosses for toggling the operating handle, a shaft hole is provided in the middle of the driving rod, a protruding shaft is provided on the bushing, and the driving rod is rotated on the protruding shaft through the shaft hole; The driving rod can rotate at a certain angle along its shaft hole under the action of external force.

In the above solution, along the clockwise direction, one end of the driving lever is provided with a protruding first toggle boss and a second toggle boss, and the other end of the lever is provided with a first limiting groove and a The second limiting groove; one end of the limiting rod is provided with a tenon matching the shape of the first limiting groove and the second limiting groove, and the other end of the limiting rod is also rotated on the sleeve; The elastic member is a torsion spring, and the torsion spring presses the tenon of the limit rod against a limit groove of the driving rod so as to limit the position of the driving rod.

The utility model has positive effects: (1) The utility model is relatively simplified in structure and takes up less space. It is not only suitable for hydraulic electromagnetic circuit breakers, but also for traditional C45 circuit breakers, and has a wider application range and Excellent performance.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model;

Fig. 2 is a kind of structural representation of another state that the utility model is in;

Fig. 3 is a schematic diagram of a three-dimensional structure of a hydraulic electromagnetic circuit breaker made by the utility model;

Fig. 4 is an exploded schematic view of the circuit breaker shown in Fig. 3;

Fig. 5 is a schematic diagram of the structure of the remote control device in the circuit breaker shown in Fig. 3 to realize the automatic opening and closing action;

Fig. 6 is a structural schematic diagram of the lever in the circuit breaker shown in Fig. 5 after it is rotated by a certain angle;

Fig. 7 is a structural schematic diagram of the trip switch triggered by the trigger in the circuit breaker shown in Fig. 5;

Fig. 8 is a structural schematic diagram of the trigger member sliding in the sliding groove of the housing in the circuit breaker shown in Fig. 3 .

The marks shown in the drawings are: housing 1, chute 11, positioning card table 111, operating handle 2, remote control device 3, linkage plate 4, screw rod 5, driving mechanism 6, motor 61, gear assembly 62, driving gear 621 , linkage gear 622, driven gear 623, lever mechanism 7, bushing 71, cam shaft 711, lever assembly 8, lever 81, toggle boss 810, first toggle boss 811, second toggle Boss 812, first limit groove 813, second limit groove 814, limit rod 82, tenon 821, elastic member 83, travel switch 91, trigger reed 911, trigger member 92, positioning groove 921, plug Connecting terminal block 100.

Detailed ways

(Example 1)

Figure 1 and Figure 2 show a specific embodiment of the utility model, wherein Figure 1 is a schematic structural view of the utility model; Figure 2 is a schematic structural view of the utility model in another state.

This embodiment is an electric opening and closing device used in a small circuit breaker, as shown in Figure 1 and Figure 2, including a screw 5, a driving mechanism 6 for driving the screw 5 to rotate, driven by the screw 5 and can move along the A lever mechanism 7 that moves back and forth in the direction in which the screw rod 5 is set.

The driving mechanism 6 includes a motor 61 and a gear assembly 62 , and the motor 61 drives the screw 5 to reciprocate through the gear assembly 62 .

The motor 61 is arranged above the screw rod 5, and the gear assembly 62 includes a driving gear 621 fixed on the output shaft of the motor 61, a driven gear 623 fixed on one side of the screw rod 5, and a drive gear 621 for linkage with The driving gear 622 of the driven gear 623 .

The lever mechanism 7 includes a shaft sleeve 71 provided with a screw hole and a lever assembly 8 arranged on the shaft sleeve 71. The shaft sleeve 71 is sleeved on the screw rod 5 through its screw hole, and the shaft sleeve 71 is arranged along the The screw rod 5 reciprocates in the direction of the central axis, and the driving lever assembly 8 reciprocates along with the movement of the shaft sleeve 71 .

The lever assembly 8 includes a lever 81 rotatably arranged on the sleeve 71, a limit rod 82 for limiting the lever 81, and an elastic member 83 for providing a reset force for the limit lever 82; One end of the driving lever 81 is provided with two toggle bosses 810 for toggling the operating handle 2, the middle part of the driving lever 81 is provided with a shaft hole, the bushing 71 is provided with a protruding shaft 711, and the driving lever 81 It is installed on the protruding shaft 711 through the shaft hole to rotate; the driving rod 81 can rotate along its shaft hole at a certain angle under the action of external force.

Along the clockwise direction, one end of the driving lever 81 is provided with a protruding first toggle boss 811 and a second toggle boss 812, and the other end of the lever 81 is provided with a first limiting groove 813 and the second limiting groove 814; one end of the limiting rod 82 is provided with a tenon 821 that matches the shape of the first limiting groove 813 and the second limiting groove 814, and the other end of the limiting rod 82 is also The rotation is set on the shaft sleeve 71; the elastic member 83 is a torsion spring, and the torsion spring presses the tenon 821 of the limit rod 82 into a limit groove of the shift rod 81 to limit the position of the shift rod 81 .

The structure of this embodiment is relatively simplified and occupies less space. It is not only suitable for hydraulic electromagnetic circuit breakers, but also suitable for traditional C45 circuit breakers. It has a wider application range and excellent performance.

(Application example 1)

Figures 3 to 8 show a specific application of the utility model, wherein Figure 3 is a schematic diagram of a three-dimensional structure of a hydraulic electromagnetic circuit breaker made by the utility model; Figure 4 is a schematic diagram of the circuit breaker shown in Figure 3 An exploded schematic diagram; Figure 5 is a structural schematic diagram of the remote control device in the circuit breaker shown in Figure 3 to realize automatic opening and closing; Figure 6 is a structure after the driving lever in the circuit breaker shown in Figure 5 is rotated at a certain angle Schematic diagram; FIG. 7 is a structural schematic diagram of the trigger triggering the travel switch in the circuit breaker shown in FIG. 5; FIG. 8 is a structural schematic diagram of the trigger sliding in the housing chute in the circuit breaker shown in FIG. 3.

This application example is an intelligent hydraulic electromagnetic circuit breaker made by the above-mentioned embodiment 1, as shown in Fig. 3 to Fig. 8, including an insulating case 1, an operating handle 2, a remote control device 3 and a linkage plate 4.

The linkage plate 4 is fixedly connected with the operating handle 2; the remote control device 3 includes a screw 5, a drive mechanism 6 for driving the screw 5 to rotate, driven by the screw 5 and reciprocating along the setting direction of the screw 5 The lever mechanism 7, during the process of reciprocating movement, the lever mechanism 7 toggles the linkage plate 4 and then drives the operating handle 2 to perform opening and closing actions. The casing 1 is provided with an intelligent control circuit module for controlling the rotation of the motor 61. The intelligent control circuit module includes a plug-in terminal block 100 arranged on the casing 1, and the intelligent control circuit module is The type terminal block 100 is connected to the remote host; in practice, it can also be connected to the remote host through a wireless module.

In this application example, the driving mechanism 6 includes a motor 61 and a gear assembly 62 , and the motor 61 drives the screw 5 to reciprocate through the gear assembly 62 . The motor 61 is arranged above the screw rod 5, and the gear assembly 62 includes a driving gear 621 fixed on the output shaft of the motor 61, a driven gear 623 fixed on one side of the screw rod 5, and a drive gear 621 for linkage with The driving gear 622 of the driven gear 623 . The gear assembly 62 is arranged on the same side of the motor 61 and the screw 5

The driving rod mechanism 7 includes a shaft sleeve 71 provided with a screw hole and a driving rod assembly 8 arranged on the shaft sleeve 71, the shaft sleeve 71 is sleeved on the screw rod 5 through its screw hole, and the driving rod assembly 8 In the process of moving with the shaft sleeve 71, the linkage plate 4 is moved to drive the operating handle 2 to perform opening and closing actions.

The lever assembly 8 includes a lever 81 rotatably arranged on the sleeve 71, a limit rod 82 for limiting the lever 81, and an elastic member 83 for providing a reset force for the limit lever 82; One end of the driving lever 81 is provided with two toggle bosses 810 for toggling the operating handle 2, the middle part of the driving lever 81 is provided with a shaft hole, the bushing 71 is provided with a protruding shaft 711, and the driving lever 81 It is arranged on the protruding shaft 711 through the rotation of the shaft hole; the driving lever 81 can rotate a certain angle along its shaft hole under the action of external force, so that a toggle boss 810 can rotate from the position where the linkage member 4 can be toggled to a position below the The position of the linkage piece 4, while the other toggle boss 810 rotates from a state lower than the linkage piece 4 to a position where the linkage piece 4 can be toggled. This structure can ensure that the shift lever 81 in the shift lever assembly 8 will not affect the manual operation of the operating handle 2, for example, when the second shift boss 812 is against the linkage 4, it is only necessary to move the Operating the handle 4, the operating handle can be used to toggle the driving lever 81 to make it rotate, so that the second toggle boss 812 is lower than the linkage 4, and no longer affects the rotation of the linkage 4, while the first toggle boss 811 then Raise from the other side of the linkage 4 to the position where the linkage 4 can be toggled, so as not to affect the next motor-driven automatic opening and closing action.

In this application example, along the clockwise direction, one end of the lever 81 is provided with a first toggle boss 811 and a second toggle boss 812 for toggling the linkage 4, and the other end of the lever 81 is One end is provided with a first limiting groove 813 and a second limiting groove 814; one end of the limiting rod 82 is provided with a tenon 821 matching the shape of the first limiting groove 813 and the second limiting groove 814, so The other end of the limit rod 82 is also rotated on the sleeve 71; the elastic member 83 is a torsion spring, and the torsion spring presses the tenon 821 of the limit rod 82 against a limit position of the driving rod 81. Thereby, the shift rod 81 is limited in the groove. When the first toggle boss 811 is in the position where the linkage 4 can be toggled, the tenon 821 of the stop rod 82 is pressed against the first stop groove 813 of the shift lever 81; when the second toggle boss 812 When in the position where the linkage member 4 can be toggled, the tenon 821 of the limiting rod 82 presses against the second limiting groove 814 of the driving rod 81 .

This application example also includes a travel switch 91 for controlling the action of the motor 61, and a trigger 92 for triggering the travel switch 91 driven by the lever 81; The triggering boss 922 of the reed 911 is used for the force-bearing boss 923 driven by the shift lever 81 , and the force-bearing boss 923 is arranged at both ends of the trigger plate 92 .

In this application example, the trigger member 92 is a trigger plate, and two positioning grooves 921 are provided on the trigger plate; the housing 1 is provided with a chute 11 matched with the trigger plate, so that A positioning card platform 111 is provided in the chute 11, and when the trigger plate is driven by the driving lever 81 to move in the chute 11, the positioning groove 921 moves with the trigger plate, so that the positioning card platform 111 Shift from one positioning groove 921 and snap into another positioning groove 921; thus the trigger plate 92 is positioned in the chute 11, so that the travel switch 91 continues to maintain this state until it is triggered next time .

This application example includes a remote control device 3 and a linkage plate 4, the linkage plate 4 is connected to the operating handle 2; the remote control device 3 includes a screw 5, a drive mechanism 6 for driving the screw 5 to rotate, driven by the screw 5 Down and the lever mechanism 7 that can reciprocate along the setting direction of the screw rod 5. During the reciprocating movement, the lever mechanism 7 moves the linkage plate 4 and then drives the operating handle 2 to perform opening and closing actions. When in use, the motor can rotate back and forth under intelligent control or remote control, and drives the screw to rotate during the rotation, which in turn drives the lever mechanism to move, and finally the linkage plate is moved to realize the opening and closing action. This application example has a simplified structure, takes up less space, has a wider application range, and has excellent performance.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, on the basis of the above description, other changes or changes in different forms can also be made. It is not necessary and impossible to exhaustively list all the implementation manners here. And these obvious changes or changes derived from the essential spirit of the present utility model still belong to the protection scope of the present utility model.

Claims (7)

1. an electronic divide-shut brake device that is used for miniature circuit breaker is characterized in that: comprise screw rod (5), be used for the driving mechanism (6) of drive screw (5) rotation, under the drive of screw rod (5), also can the lever body (7) that direction moves back and forth be set along screw rod (5).

2. the electronic divide-shut brake device that is used for miniature circuit breaker according to claim 1, it is characterized in that: said driving mechanism (6) comprises motor (61).

3. the electronic divide-shut brake device that is used for miniature circuit breaker according to claim 2, it is characterized in that: said driving mechanism (6) also comprises gear assembly (62), said motor (61) drives screw rod (5) through gear assembly (62) and back and forth rotates.

4. the electronic divide-shut brake device that is used for miniature circuit breaker according to claim 3; It is characterized in that: said motor (61) is arranged on screw rod (5) top, and said gear assembly (62) comprises the driven wheel (621) that is fixed on motor (61) output shaft, be fixed on the driven gear (623) on screw rod (5) one sides and be used for the linkage gear (622) of linkage driving gear (621) and driven gear (623).

5. the electronic divide-shut brake device that is used for miniature circuit breaker according to claim 1; It is characterized in that: said lever body (7) comprises the axle sleeve (71) that is provided with screw and is arranged on the driving lever assembly (8) on the axle sleeve (71); Said axle sleeve (71) is set on the screw rod (5) through its screw; Said axle sleeve (71) reciprocatingly moves along screw rod (5) central axial direction, and said driving lever assembly (8) is along with mobile the moving reciprocatingly of axle sleeve (71).

6. the electronic divide-shut brake device that is used for miniature circuit breaker according to claim 5 is characterized in that: said driving lever assembly (8) comprises and rotates the driving lever (81) be arranged on the axle sleeve (71), is used for the gag lever post (82) of spacing driving lever (81) and is used to the elastic component (83) that gag lever post (82) provides reseting elasticity; One end of said driving lever (81) is provided with two of being used to stir operating grip (2) and stirs boss (810), and said driving lever (81) middle part is provided with axis hole, and said axle sleeve (71) is provided with protruding axle (711), and said driving lever (81) rotates through axis hole and is arranged on the protruding axle (711); Said driving lever (81) can turn an angle along its axis hole under external force.

7. the electronic divide-shut brake device that is used for miniature circuit breaker according to claim 6; It is characterized in that: along clockwise direction; One end of said driving lever (81) is provided with first of protrusion and stirs boss (811) and second and stir boss (812), and the other end of said driving lever (81) is provided with first stopper slot (813) and second stopper slot (814); One end of said gag lever post (82) is provided with the tenon (821) that matches with first stopper slot (813) and second stopper slot (814) shape, and the other end of said gag lever post (82) also rotates and is arranged on the axle sleeve (71); Said elastic component (83) is a torsion spring, said torsion spring the tenon (821) of gag lever post (82) is pressed on driving lever (81) thus a stopper slot in spacing to driving lever (81).

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