A circuit breaker torque guide terminal cover

Abstract

The utility model discloses a kind of circuit breaker torque guide terminal covers, it is related to circuit breaker technical field, including bottom frame, the inner wall of bottom frame is fixedly connected with support, the end of support is fixedly connected with positioning cylinder, the upper end of positioning cylinder is fixedly connected with guide cylinder, the upper end of guide cylinder is equipped with arc edge, the surface of bottom frame is slidably connected with fender, the surface of bottom frame and fender is fixedly connected with shutter, the side end of fender is fixedly connected with guide plate;Fixed by the pushing of spring steel strip can fender is fixed after opening and closing, so as to ensure that the angle of cable fixation does not occur large deviation, leading to contact surface not enough to fit, and dust and splashed liquid will be blocked by fender, avoid external dust or liquid splashing into and contacting to interface, cause short circuit, improve the safety of circuit breaker.

Description

Technical Field

[0001] This utility model relates to the field of circuit breakers, and in particular to a circuit breaker torque guide terminal cover. Background Technology

[0002] Circuit breakers are core electrical appliances in power systems, combining control and protection functions. They can connect or disconnect circuits under normal operating conditions, and more importantly, quickly and automatically disconnect power in the event of faults such as short circuits, overloads, or leakage, preventing equipment damage and safety accidents such as electric shock and fire. Widely used in household distribution boxes, industrial distribution rooms, and power grids, they safely extinguish the electric arc generated during power outages through internal arc-extinguishing devices, ensuring a reliable disconnection process. They are crucial equipment for ensuring the stable operation of power systems and electrical safety. Different types of circuit breakers can be flexibly selected according to voltage levels and usage scenarios.

[0003] According to the publication number CN222965965U, a circuit breaker is disclosed. This technology discloses "a base and a cover, wherein the cover and the base are interlocked to form an installation chamber, the top of the cover is provided with several heat dissipation holes, the bottom of the cover is provided with a connecting plate, one end of the connecting plate is attached to the end face of the base, the connecting plate is provided with several flow guiding structures, the heat dissipation holes and the flow guiding structures are all connected to the installation chamber, and the installation chamber can be connected to the external space through the heat dissipation holes and the flow guiding structures, etc., which has the technical effect of forming gas convection, improving heat dissipation efficiency, and reducing the temperature rise of the circuit breaker without affecting the overall volume of the circuit breaker". However, existing circuit breaker terminal areas typically use flat baffles or open-window protective plates. After the circuit breaker is fixed, the terminal pressure plate may not fit properly with the contact surface due to the offset of the cable fixing angle. Furthermore, the open terminal area makes it easy for external dust or liquid to splash onto the interface, thus posing a risk of short circuit.

[0004] Therefore, this utility model provides a circuit breaker torque guide terminal cover. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: A circuit breaker torque guide terminal cover includes a base frame, a bracket fixedly connected to the inner wall of the base frame, a positioning cylinder fixedly connected to the end of the bracket, a guide cylinder fixedly connected to the upper end of the positioning cylinder, an arc edge formed at the upper end of the guide cylinder, a water baffle slidably connected to the surface of the base frame, a shield fixedly connected to the surfaces of the base frame and the water baffle, a guide plate fixedly connected to the side end of the water baffle, a buffer pad fixedly connected to the side end of the shield, and a guide rod fixedly connected to the side end of the guide plate.

[0006] In a preferred embodiment, the end of the guide rod is rotatably connected to a handle, and a fixed platform is fixedly connected to the surface of the bracket, with a fixing groove formed on the surface of the fixed platform.

[0007] The technical effect of adopting the above-mentioned further solution is that the handle can be rotated after being turned.

[0008] In a preferred embodiment, a push plate is fixedly connected to the lower end of the guide plate, and a spring steel strip is fixedly connected to the side end of the push plate. Both ends of the spring steel strip are fixedly connected to the bottom frame.

[0009] The technical effect of adopting the above-mentioned further solution is that the baffle can be fixed after opening and closing.

[0010] In a preferred embodiment, the bottom frame has a mounting hole on its side, and a mounting bolt is threadedly connected to the bottom frame through the mounting hole.

[0011] The technical effect of adopting the above-mentioned further solution is that the bottom frame can be fixed to the circuit breaker.

[0012] In a preferred embodiment, a rotating plate is rotatably connected to the upper end of the bottom frame, and magnetic strips are fixedly connected to the contact surfaces of the bottom frame and the rotating plate, respectively.

[0013] The technical effect of adopting the above-mentioned further solution is that the opening exposed when the terminal is fixed can be opened and closed.

[0014] In a preferred embodiment, a gasket is provided inside the bottom frame, and the surface of the gasket is provided with a scale. A pointer is fixedly connected to the side of the positioning cylinder facing the gasket.

[0015] The technical effect of adopting the above-mentioned further solution is that the rotation angle of the gasket can be determined by setting it.

[0016] In a preferred embodiment, a positioning bolt is slidably connected to the upper end of the gasket, and a positioning block is fixedly connected to the lower end of the positioning bolt. A positioning groove is formed on the surface of the gasket, and the gasket is slidably connected to the positioning block through the positioning groove.

[0017] The technical effect of adopting the above-mentioned further solution is that by setting the positioning bolt to rotate, it will drive the shim to rotate, thereby recording the torque position after the terminal is fixed, so that it can be quickly detected when the terminal fixing end is loose, thus improving the safety of the circuit breaker.

[0018] This utility model provides a torque-guided terminal cover for a circuit breaker. It has the following advantages: The baffle plate can be fixed after opening and closing by the push of the spring steel bar, which ensures that the angle of the cable will not be greatly deviated when it is fixed, so that the contact surface is not close enough. Dust and splashing liquid will be blocked by the baffle plate, preventing external dust or liquid from splashing into and contacting the interface, causing a short circuit, and improving the safety of the circuit breaker.

[0019] By pointing the pointer to the scale on the gasket surface after the terminal is fixed, the torque position after the terminal is fixed can be recorded, so that loose terminal fixing can be quickly detected, improving the safety of the circuit breaker and reducing maintenance intensity. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a circuit breaker torque guide terminal cover according to the present invention; Figure 2 This is a schematic diagram of the water baffle plate and related parts of a circuit breaker torque guide terminal cover according to this utility model; Figure 3 This is a schematic diagram of the guide cylinder and related parts of a circuit breaker torque guide terminal cover according to this utility model; Figure 4 This is a schematic diagram of the positioning bolt and related parts of a circuit breaker torque guide terminal cover according to this utility model.

[0021] Explanation of reference numerals in the attached figures: 1. Base frame; 2. Bracket; 3. Positioning cylinder; 4. Guide cylinder; 5. Arc edge; 6. Water baffle; 7. Cover plate; 8. Guide plate; 9. Buffer pad; 10. Guide rod; 11. Handle; 12. Fixing platform; 13. Fixing groove; 14. Push plate; 15. Spring steel strip; 16. Mounting hole; 17. Mounting bolt; 18. Rotating plate; 19. Magnetic strip; 20. Gasket; 21. Pointer; 22. Positioning bolt; 23. Positioning block; 24. Positioning groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a circuit breaker torque guide terminal cover includes a base frame 1. A bracket 2 is fixedly connected to the inner wall of the base frame 1. A positioning cylinder 3 is fixedly connected to the end of the bracket 2. The position of the positioning cylinder 3 corresponds one-to-one with the terminals. A guide cylinder 4 is fixedly connected to the upper end of the positioning cylinder 3. The upper end of the guide cylinder 4 has a flared opening for guiding. An arc edge 5 is provided on the upper end of the guide cylinder 4 to prevent the cable from contacting the edge and causing wear during installation. A water baffle 6 is slidably connected to the surface of the base frame 1. The base frame 1 and the water baffle 6 are adapted to each other. A cover plate 7 is fixedly connected to the surface of the base frame 1 and the water baffle 6. A guide plate is fixedly connected to the side end of the water baffle 6. 8. A buffer pad 9 is fixedly connected to the side end of the shield 7. The cable is fixed by the buffer pad 9 and external dust and liquid are prevented from entering from here. A guide rod 10 is fixedly connected to the side end of the guide plate 8. The cable is fixed to the circuit breaker terminal area by the guidance of the positioning cylinder 3 and the guide cylinder 4. It is fixed by the movable baffle 6 and the buffer pad 9. This ensures that the angle of the cable will not be greatly deviated when it is fixed, so that the contact surface is not close enough. Dust and splashed liquid will be blocked by the baffle 6 and discharged under the action of the shield 7 and the guide plate 8, preventing external dust or liquid from splashing in and contacting the interface and causing a short circuit.

[0024] like Figure 1 - Figure 2 As shown: The end of the guide rod 10 is rotatably connected to the handle 11. The outer circumference of the guide rod 10 is equal to the inner circumference of the handle 11. The surface of the bracket 2 is fixedly connected to the fixed platform 12. There are two fixed platforms 12. The surface of the fixed platform 12 is provided with a fixed groove 13. The handle 11 is adapted to the fixed groove 13. When the handle 11 is rotated, its angle can be fixed by the fixed platform 12 and the fixed groove 13.

[0025] like Figure 1 - Figure 2 As shown: A push plate 14 is fixedly connected to the lower end of the guide plate 8, and a spring steel strip 15 is fixedly connected to the side end of the push plate 14. Both ends of the spring steel strip 15 are fixedly connected to the bottom frame 1. After the handle 11 contacts the bottom frame 1 and is pulled and rotated, it is stuck in the fixing groove 13. The elastic force provided by the spring steel strip 15 can fix the water baffle 6 after opening and closing.

[0026] like Figure 1 As shown: The bottom frame 1 has a mounting hole 16 on its side end. The bottom frame 1 is threadedly connected to the mounting bolt 17 through the mounting hole 16. The bottom frame 1 is adapted to the mounting hole 16. After the bottom frame 1 is placed on the circuit breaker, it can be fixed by the mounting bolt 17.

[0027] like Figure 1 As shown: A rotating plate 18 is rotatably connected to the upper end of the bottom frame 1. Magnetic strips 19 are fixedly connected to the contact surfaces of the bottom frame 1 and the rotating plate 18 respectively. When the rotating plate 18 is rotated, it opens to expose the interface at the terminal fixing point. When closed, it can be fixed by the magnetic strips 19.

[0028] like Figure 3 - Figure 4 As shown: A shim 20 is provided inside the bottom frame 1. The surface of the shim 20 is marked with a scale. The surface of the shim 20 is circular. The scale on the surface of the shim 20 points to the edge of the shim 20. A pointer 21 is fixedly connected to the side of the positioning cylinder 3 facing the shim 20. The pointer 21 points to the scale on the surface of the shim 20, so that the rotation angle of the shim 20 can be determined and recorded.

[0029] like Figure 3 - Figure 4 As shown: A positioning bolt 22 is slidably connected to the upper end of the gasket 20, and a positioning block 23 is fixedly connected to the lower end of the positioning bolt 22. A positioning groove 24 is provided on the surface of the gasket 20. The gasket 20 is slidably connected to the positioning block 23 through the positioning groove 24. The positioning block 23 is adapted to the positioning groove 24. By setting it so that the rotation of the positioning bolt 22 will drive the gasket 20 to rotate, so that the pointer 21 can point to the scale on the surface of the gasket 20 to record the torque position after the terminal is fixed. This allows the loosening of the terminal fixing end to be quickly detected, improving the safety of the circuit breaker and reducing the maintenance intensity.

[0030] Working principle: like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this type of circuit breaker torque-guided terminal cover, when in use, first pulls up and rotates the handle 11, and then fixes itself by the push of the fixing groove 13 and the spring steel strip 15. At this time, the baffle 6 opens, and the cable can be guided by the positioning cylinder 3 and the guide cylinder 4 to be fixed in the circuit breaker terminal area. The closed baffle 6 and the buffer pad 9 lock the cable entry angle perpendicular to the circuit breaker. After the handle 11 is pulled and rotated, it contacts the bottom frame 1 and is stuck between the two fixing platforms 12. The push of the spring steel strip 15 can fix the baffle 6 after it is closed, thus ensuring that the cable is fixed at the correct angle. The degree of deviation will not be large enough to cause insufficient contact surface fit, and dust and splashed liquid will be blocked by the baffle plate 6 and discharged under the action of the shield plate 7 and guide plate 8, preventing external dust or liquid splashes from entering and contacting the interface and causing short circuit, thus improving the safety of the circuit breaker. After the positioning bolt 22 rotates, it will drive the gasket 20 to rotate, so that after the terminal is fixed, the torque position after the terminal is fixed can be recorded according to the scale on the surface of the gasket 20 pointed to by the pointer 21. This allows the loosening of the terminal fixing end to be quickly detected, improving the safety of the circuit breaker and reducing the maintenance intensity.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A circuit breaker torque guide terminal cover, comprising a base frame (1), characterized in that: A bracket (2) is fixedly connected to the inner wall of the bottom frame (1). A positioning cylinder (3) is fixedly connected to the end of the bracket (2). A guide cylinder (4) is fixedly connected to the upper end of the positioning cylinder (3). An arc edge (5) is opened at the upper end of the guide cylinder (4). A water baffle (6) is slidably connected to the surface of the bottom frame (1). A cover plate (7) is fixedly connected to the surface of the bottom frame (1) and the water baffle (6). A guide plate (8) is fixedly connected to the side end of the water baffle (6). A buffer pad (9) is fixedly connected to the side end of the cover plate (7). A guide rod (10) is fixedly connected to the side end of the guide plate (8).

2. A circuit breaker torque guide terminal cover according to claim 1, characterized in that: The end of the guide rod (10) is rotatably connected to a handle (11), and a fixed platform (12) is fixedly connected to the surface of the bracket (2), and a fixed groove (13) is opened on the surface of the fixed platform (12).

3. A circuit breaker torque guide terminal cover according to claim 1, characterized in that: The lower end of the guide plate (8) is fixedly connected to a push plate (14), and the side end of the push plate (14) is fixedly connected to a spring steel strip (15). The two ends of the spring steel strip (15) are fixedly connected to the bottom frame (1).

4. A circuit breaker torque guide terminal cover according to claim 1, characterized in that: The bottom frame (1) has a mounting hole (16) on its side end, and the bottom frame (1) is threadedly connected to a mounting bolt (17) through the mounting hole (16).

5. A circuit breaker torque guide terminal cover according to claim 1, characterized in that: The upper end of the bottom frame (1) is rotatably connected to a rotating plate (18), and magnetic strips (19) are fixedly connected to the contact surfaces of the bottom frame (1) and the rotating plate (18).

6. A circuit breaker torque guide terminal cover according to claim 1, characterized in that: The bottom frame (1) is provided with a gasket (20) inside. The surface of the gasket (20) is marked with a scale. The positioning cylinder (3) is fixedly connected to a pointer (21) on the side facing the gasket (20).

7. A circuit breaker torque guide terminal cover according to claim 6, characterized in that: The upper end of the gasket (20) is slidably connected to a positioning bolt (22), and the lower end of the positioning bolt (22) is fixedly connected to a positioning block (23). A positioning groove (24) is provided on the surface of the gasket (20), and the gasket (20) is slidably connected to the positioning block (23) through the positioning groove (24).

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