A circuit breaker safety operating device

Abstract

The utility model relates to a circuit breaker safety operating device. Including operating subassembly and execution component, be equipped with operating lever between both, execution component includes the base of door type, is equipped with support frame in the top side of base, is equipped with the through -hole on the support frame, is equipped with the axle hole below the through -hole on the base, the lower part of operating lever is located in the through -hole and the lower extreme is located in the axle hole, the horizontal slide bar is installed to the bottom of base, first rabbet and second rabbet are installed on the slide bar, the top of two rabbets is fixedly connected with connecting plate, is equipped with the cotter on connecting plate and the cotter is located in the strip hole of base middle part, the lower extreme of operating lever is installed with the rabbet cooperation of cotter, is equipped with the fixed plate in the inside of support frame, is equipped with the support plate in the side of base, is equipped with the connecting hole in the middle of fixed plate and support plate, the bottom left side of base is equipped with the support foot, and the right side is installed with the detachable outer support. The utility model has multiple installation uses mode, promotes the versatility when installing and using.

Description

Technical Field

[0001] This utility model belongs to the field of circuit breaker structure technology, and in particular relates to a circuit breaker safety operation device. Background Technology

[0002] Circuit breakers are used to control the on / off state of circuits, while explosion-proof circuit breakers are a type of circuit breaker product used in explosion-proof environments. The on / off control of the circuit breaker is performed by an operating device. The explosion-proof characteristics of the circuit breaker are ensured by encapsulating it inside an explosion-proof housing and operating it externally to initiate on / off actions. A safety operating device is used for safe switching operations of the residual current device (RCD) from the outside. The operating components of the safety operating device are typically located away from the circuit breaker itself, achieving an isolated safety operation effect.

[0003] Typically, depending on the installation method of the circuit breaker within the enclosure and whether the enclosure has an openable door (on which the operating device is mounted), safety operating devices should have multiple installation and fixing methods to meet the usage requirements of specific scenarios. Current safety operating devices have a single installation method, limiting their application. Therefore, it is necessary to develop and design a structure for safety operating devices to solve the aforementioned technical problems. Summary of the Invention

[0004] The purpose of this utility model is to provide a circuit breaker safety operation device with multiple installation and usage methods, thereby improving its versatility during installation and use.

[0005] The technical solution adopted by this utility model is as follows: a circuit breaker safety operation device, including an operation component installed on the panel of the enclosure and an execution component combined with the circuit breaker, with an operation lever between the operation component and the execution component; the execution component includes a gate-shaped base, a support frame on the top side of the base, a through hole on the support frame, and a shaft hole on the base below the through hole, the lower part of the operation lever is located in the through hole and the lower end is located in the shaft hole, a horizontally placed slide rod is installed at the bottom of the base, a first lever plate and a second lever plate are installed on the slide rod, the top of the first lever plate and the second lever plate are fixedly connected by a connecting plate, a pin is provided on the connecting plate and the pin is located in the strip hole in the middle of the base, a fork that cooperates with the pin is installed at the lower end of the operation lever, a fixing plate is provided on the inner side of the support frame, a support plate is provided on the side of the base, a connecting hole is provided in the middle of the fixing plate and the support plate, a support foot is provided on the left side of the bottom of the base and a detachable outer bracket is installed on the right side.

[0006] Preferably, the base, support frame and its fixing plate and support plate are made of the same metal plate by stamping and bending. The two ends of the slide rod are riveted to the left side plate and right side plate of the base. The first lever plate, the second lever plate and the connecting plate are made of the same metal plate by bending.

[0007] Preferably, the side of the fixing plate has a notch that communicates with the connecting hole in the center, and a bolt for fixing the actuator is radially inserted into the connecting hole through the notch.

[0008] Preferably, the outer bracket has fork arms that bend toward the base on both sides of the top, a connecting hole is provided at the center of the end of the fork arm and a notch that communicates with the connecting hole is provided at the end of the fork arm, and ear plates are provided on both sides of the side of the base and the two ear plates are located in the connecting holes of the two fork arms; a connecting hole is provided at the center of the outer bracket and a threaded hole is provided at the center of the right side plate of the base, and the outer bracket is fixedly connected to the right side plate by fixing screws located in the connecting hole.

[0009] Preferably, the operating component includes a base and a knob installed in the middle of the base. The base is fixedly connected to the housing panel. A connecting seat is installed at the bottom of the knob and the upper end of the operating lever is connected to the connecting seat.

[0010] Preferably, a groove is provided at the bottom center of the knob and the upper end of the connecting seat is embedded in the groove, and a slot is provided at the bottom center of the connecting seat. The upper end of the operating lever is located in the slot and is fixed by two locking screws on the left and right.

[0011] Preferably, the operating assembly also includes a support plate located inside the housing panel with a window in the middle, through which the upper part of the operating lever passes. The top of the support plate has two outwardly extending wing plates. The base, housing panel and the wing plates of the support plate are fixedly connected by bolts.

[0012] The advantages and positive effects of this utility model are: This utility model provides a circuit breaker safety operating device. Compared with existing safety operating devices, the operating component of this circuit breaker safety operating device is mounted on the enclosure panel, and its actuating component is combined with the circuit breaker inside the enclosure. When the enclosure panel is an openable door, the actuating component can be set to not be combined with the circuit breaker, that is, the actuating component is not fixedly connected to the circuit breaker housing. In this way, when the enclosure door is opened, the safety operating device moves accordingly and the actuating component separates from the circuit breaker; when the enclosure door is closed, the actuating component combines with the circuit breaker. When the enclosure does not have an openable door, this safety operating device is fixedly installed. In this case, a fixing plate, a support plate, and fixing bolts can be used to combine the actuating component with the circuit breaker housing, or a base and an external bracket can be used to clamp and fix the circuit breaker housing to achieve the combination of the actuating component and the circuit breaker housing. Therefore, this circuit breaker safety operating device has multiple installation and usage methods, improving its versatility during installation and use. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention, from a top view. Figure 2This is a three-dimensional structural schematic diagram of the present invention, from a lower perspective; Figure 3 yes Figure 1 A structural diagram of the central operating component, viewed from below; Figure 4 yes Figure 1 A schematic diagram of the structure of the execution component, from the bottom view.

[0014] In the picture: 1. Knob; 2. Base; 3. Box panel; 4. Bracket plate; 5. Connecting seat; 6. Window; 7. Operating lever; 8. Support frame; 9. Shift fork; 10. Base; 11. Fixing plate; 12. Support plate; 13. Slide rod; 14. Outer bracket; 15. First shift plate; 16. Pin; 17. Strip hole; 18. Second shift plate; 19. Fixing screw; 20. Connecting plate; 21. Fork arm; 22. Slot; 23. Locking screw; 24. Shaft hole. Detailed Implementation

[0015] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.

[0016] Please see Figure 1 and Figure 2 The circuit breaker safety operation device of this utility model includes an operation component installed on the housing panel 3 and an execution component combined with the circuit breaker. An operation lever 7 is provided between the operation component and the execution component. The operation lever 7 transmits the rotation operation of the operation component to the execution component. The execution component generates a toggle action on the operation terminal of the circuit breaker. When toggled to one side, the circuit breaker is turned on; when toggled to the other side, the circuit breaker is turned off.

[0017] Please see Figure 2 and Figure 3 It can be seen that: The operating components include a base 2 and a knob 1 installed in its center. The base 2 is fixedly connected to the housing panel 3. A connecting seat 5 is installed at the bottom of the knob 1, and the upper end of the operating lever 7 is connected to the connecting seat 5. Specifically, a shaft hole is provided in the middle of the base 2, and the lower part of the knob 1 is a shaft portion located within the shaft hole of the base 2. Therefore, the knob 1 can be operated to rotate in the forward or reverse direction, thereby realizing the forward or reverse twisting of the operating lever 7.

[0018] In this embodiment, a groove is provided at the bottom center of the knob 1, and the upper end of the connecting seat 5 is embedded in the groove. A slot 22 is provided at the bottom center of the connecting seat 5. The upper end of the operating rod 7 is located in the slot 22 and is fixed by two locking screws 23 on the left and right. Specifically, the main body of the operating rod 7 is a square shaft. The cross-sectional shape of the slot 22 is adapted to the cross-sectional shape of the upper end of the operating rod 7. During assembly, the upper end of the operating rod 7 is inserted into the slot 22. Threaded holes extending inward to the slot 22 are provided on both sides of the bottom of the connecting seat 5. When the upper end of the operating rod 7 is inserted into the slot 22, two locking screws 23 are screwed in from the left and right sides and tightened until the inner end is pressed against the operating rod 7. At this time, the operating rod 7 is fixed, that is, the upper end of the operating rod 7 is integrated with the connecting seat 5.

[0019] In this embodiment, the operating component also includes a support plate 4 located inside the housing panel 3, with a window 6 in the middle. The upper part of the operating lever 7 passes through the window 6. The top of the support plate 4 has two outwardly extending wing plates. The base 2, housing panel 3, and the wing plates of the support plate 4 are fixedly connected by bolts. Specifically, the base 2, housing panel 3, and the wing plates of the support plate 4 are provided with two sets of left and right connecting holes, and bolts are installed in the two sets of connecting holes. To achieve a better appearance, a sealing shell is provided on the base 2, which can enclose the base 2 and the nut portions of the left and right bolts inside.

[0020] Please see Figure 1 and Figure 4 It can be seen that: The actuator includes a portal-shaped base 10, with a support frame 8 on the top side of the base 10. A through hole is provided on the support frame 8, and a shaft hole 24 is provided on the base 10 below the through hole. The lower part of the operating lever 7 is located within the through hole, and its lower end is located within the shaft hole 24. Therefore, when the operating lever 7 is twisted, the lower end of the operating lever 7 moves forward or backward within the shaft hole 24. As mentioned earlier, the main body of the operating lever 7 is a square shaft. To allow the lower end of the operating lever 7 to fall into and rotate within the shaft hole 24, the lower end of the operating lever 7 is machined into a shaft. During assembly, the lower part of the operating lever 7 is passed through the through hole on the support frame 8 from top to bottom, allowing the lower shaft end to fall into the shaft hole 24.

[0021] A horizontally positioned slide bar 13 is installed at the bottom of the base 10. A first lever 15 and a second lever 18 are mounted on the slide bar 13, with a certain distance between them. When the actuator is engaged with the circuit breaker, the circuit breaker's operating terminals fall between the first lever 15 and the second lever 18. When the first lever 15 and the second lever 18 move laterally on the slide bar 13, the operating terminals of the circuit breaker can be switched on and off.

[0022] The tops of the first lever 15 and the second lever 18 are fixedly connected by a connecting plate 20. A pin 16 is provided on the connecting plate 20, and the pin 16 is located in the strip hole 17 in the middle of the base 10. A shift fork 9 that cooperates with the pin 16 is installed at the lower end of the operating lever 7. When the operating lever 7 is rotated, the shift fork 9 rotates in the forward or reverse direction. Correspondingly, the pin 16 moves along the length direction in the strip hole 17, which drives the connecting plate 20 and its first lever 15 and second lever 18 to move along the length direction of the slide rod 13.

[0023] A fixing plate 11 is provided on the inner side of the support frame 8, and a support plate 12 is provided on the side of the base 10. A connecting hole is provided in the middle of the fixing plate 11 and the support plate 12. A support foot is provided on the left side of the bottom of the base 10, and a detachable outer bracket 14 is installed on the right side. The fixing plate 11 and the support plate 12 together constitute one connection method for connecting with the circuit breaker housing. In this case, the actuator is fixedly connected to the circuit breaker housing by bolts located in the through holes of the fixing plate 11 and the support plate 12. The outer bracket 14 provides another connection method for connecting with the circuit breaker housing. In this connection method, the circuit breaker housing is clamped between the left support foot of the base 10 and the outer bracket 14. One of the aforementioned connection methods is selected for application.

[0024] In this embodiment, the base 10, support frame 8 and its fixing plate 11 and support plate 12 are made of the same metal plate by stamping and bending. The two ends of the slide rod 13 are riveted to the left and right plates of the base 10. The first lever plate 15, the second lever plate 18 and the connecting plate 20 are made of the same metal plate by bending. This can ensure the integrity of the execution components and improve the structural compactness and structural strength.

[0025] Specifically, such as Figure 1 and Figure 4 As shown, the aforementioned assembly is first formed by stamping a metal sheet on a punch press. Then, the left support leg is bent into shape. Next, the left and right side plates are bent downwards to form a portal-shaped base 10. Then, the base 10 is bent upwards to form a support frame 8 and a support plate 12. Finally, the fixing plate 11 is bent downwards. The formed first lever 15, second lever 18, and connecting plate 20 are then connected to a sliding rod 13 through sliding holes in the two levers. The sliding rod 13 is then placed between the left and right side plates of the base 10, and its end is fixedly connected to the side plate of the base 10 using rivets. At this time, the pin 16 is located in the slotted hole 17. After the lower part of the operating lever 7 passes through the through hole on the support frame 8, a shift fork 9 is installed at the lower end. Finally, the lower end of the operating lever 7 is connected to the shaft hole 24.

[0026] In this embodiment, the side of the fixing plate 11 is provided with a notch that communicates with the connecting hole in the middle. The bolt for fixing the execution component is radially inserted into the connecting hole of the fixing plate 11 through the notch. This structure is used to improve the ease of operation of setting the bolt.

[0027] In this embodiment, fork arms 21 bent toward the base 10 are provided on both sides of the top of the outer bracket 14. A connecting hole is provided at the center of the end of the fork arm 21 and a notch communicating with the connecting hole is provided at the end of the fork arm 21. Ear plates are provided on both sides of the side of the base 10 and the two ear plates are located in the connecting holes of the two fork arms 21. A connecting hole is provided in the center of the outer bracket 14 and a threaded hole is provided in the center of the right side plate of the base 10. The outer bracket 14 is fixedly connected to the right side plate by fixing screws 19 located in the connecting hole.

[0028] When installing the outer bracket 14 on the base 10, first, let the ear plates on both sides of the base 10 enter the connecting holes of the fork arm 21 through the notches at the ends of the fork arm 21. Then, rotate the outer bracket 14 downward until it is located on the outside of the right side plate of the base 10. Then, install the fixing screw 19. When engaging with the circuit breaker housing, let the circuit breaker housing be located between the support foot on the left side of the base 10 and the outer bracket 14. Then, tighten the fixing screw 19, and the circuit breaker housing will be clamped and fixed, realizing the engagement between the actuator and the circuit breaker housing.

[0029] How to use: When the enclosure containing the circuit breaker has an openable door, the operating component of this safety operating device is installed and fixed on the door. That is, the enclosure panel 3 is the door panel. The base 2 and its knob 1 are placed on the outside of the enclosure panel 3, and the bracket plate 4 is placed on the inside of the enclosure panel 3. The base 2, the enclosure panel 3, and the wing plates of the bracket plate 4 are fixedly connected by bolts. In this application, the outer bracket 14 should be removed. There is no fixed relationship between the actuator and the circuit breaker housing. When the door is opened, this safety operating device is moved together, and the actuator is disengaged from the circuit breaker. When the door is closed, the actuator of this safety operating device is reconnected with the circuit breaker. That is, the operating terminal of the circuit breaker falls between the first switch plate 15 and the second switch plate 18. When the door is closed, the operating component controls the action of the actuator, thereby controlling the circuit breaker to operate. When the enclosure containing the circuit breaker does not have a door, this safety operating device is used in a fixed application. That is, the enclosure panel 3 is the front panel of the enclosure. Similarly, the base 2 and its knob 1 are placed on the outside of the enclosure panel 3, and the bracket plate 4 is placed on the inside of the enclosure panel 3. The base 2, enclosure panel 3, and the wing plate of the bracket plate 4 are fixedly connected with bolts. Depending on the specific installation type, the following two methods of connection with the circuit breaker housing can be selected: First, the actuator is connected to the circuit breaker housing using bolts located in the connection holes of the fixing plate 11 and the support plate 12. In this application, the outer bracket 14 should also be removed. Second, the outer bracket 14 is retained, and the circuit breaker housing is positioned between the support foot on the left side of the base 10 and the outer bracket 14 on the right side. After tightening, the fixing screw 19 is tightened, and the outer bracket 14 moves further to the left. Finally, the circuit breaker housing is clamped and fixed, realizing the connection between the actuator and the circuit breaker.

Claims

1. A circuit breaker safety operating device, characterized in that: The device includes an operating assembly mounted on the enclosure panel (3) and an execution assembly combined with the circuit breaker. An operating lever (7) is provided between the operating assembly and the execution assembly. The execution assembly includes a gate-shaped base (10). A support frame (8) is provided on the top side of the base (10). A through hole is provided on the support frame (8). A shaft hole (24) is provided on the base (10) below the through hole. The lower part of the operating lever (7) is located in the through hole and the lower end is located in the shaft hole (24). A horizontally placed slide rod (13) is installed at the bottom of the base (10). A first dial plate (15) and a second dial plate (18) are installed on the slide rod (13). The tops of the first lever (15) and the second lever (18) are fixedly connected by a connecting plate (20). A pin (16) is provided on the connecting plate (20) and the pin (16) is located in the strip hole (17) in the middle of the base (10). A fork (9) that cooperates with the pin (16) is installed at the lower end of the operating lever (7). A fixing plate (11) is provided on the inner side of the support frame (8). A support plate (12) is provided on the side of the base (10). A connecting hole is provided in the middle of the fixing plate (11) and the support plate (12). A support foot is provided on the left side of the bottom of the base (10) and a detachable outer bracket (14) is installed on the right side.

2. The circuit breaker safety operation device as described in claim 1, characterized in that: The base (10), support frame (8) and its fixing plate (11) and support plate (12) are made of the same metal plate by stamping and bending. The two ends of the slide rod (13) are riveted to the left and right plates of the base (10). The first lever plate (15), the second lever plate (18) and the connecting plate (20) are made of the same metal plate by bending.

3. The circuit breaker safety operation device as described in claim 2, characterized in that: The side of the fixing plate (11) is provided with a notch that communicates with the connection hole in the middle, and a bolt for fixing the actuator is radially inserted into the connection hole through the notch.

4. The circuit breaker safety operation device as described in claim 3, characterized in that: The top two sides of the outer bracket (14) are provided with fork arms (21) that bend toward the base (10). A connecting hole is provided at the center of the end of the fork arm (21) and a notch is provided at the end of the fork arm (21) that is connected to the connecting hole. Ear plates are provided on both sides of the side of the base (10) and the two ear plates are located in the connecting holes of the two fork arms (21). A connecting hole is provided in the center of the outer bracket (14) and a threaded hole is provided in the center of the right side plate of the base (10). The outer bracket (14) is fixedly connected to the right side plate by fixing screws (19) located in the connecting hole.

5. The circuit breaker safety operation device as described in claim 4, characterized in that: The operating components include a base (2) and a knob (1) installed in the middle of the base (2). The base (2) is fixedly connected to the housing panel (3). A connecting seat (5) is installed at the bottom of the knob (1) and the upper end of the operating lever (7) is connected to the connecting seat (5).

6. The circuit breaker safety operation device as described in claim 5, characterized in that: A groove is provided at the bottom center of the knob (1) and the upper end of the connector (5) is embedded in the groove. A slot (22) is provided at the bottom center of the connector (5). The upper end of the operating lever (7) is located in the slot (22) and is fixed by two locking screws (23) on the left and right.

7. The circuit breaker safety operation device as described in claim 6, characterized in that: The operating components also include a support plate (4) with a window (6) in the middle located inside the housing panel (3), through which the upper part of the operating lever (7) passes. The top of the support plate (4) has two wing plates extending outward. The base (2), housing panel (3) and the wing plates of the support plate (4) are fixedly connected by bolts.

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