Circuit breaker with fast closing performance

Abstract

The utility model discloses a circuit breaker with quick closing performance, including circuit breaker main part and switch board, and the inside upper portion of switch board is slidably connected to the circuit breaker main part, and the outside one side of circuit breaker main part is rotatably connected with the switch handle through the pivot, and the inside one side of circuit breaker main part is rotatably connected with the rotating link, the component that sets up can when the circuit protection mechanism detection of circuit breaker main part inside detects current short circuit, overload or electric leakage, drive circuit breaker main part automatic to the outside movement of switch board, is convenient for overhauling, and simultaneously drive switch handle to open the brake downward, realize current short circuit, overload or electric leakage protection, when current break, overload or electric leakage problem processing is completed, can through the inside component again drive circuit breaker main part to the inside movement of switch board, and simultaneously drive switch handle to close the brake again, realized remote quick closing, avoided the trouble of manual closing of staff to the scene.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically to a circuit breaker with fast closing performance. Background Technology

[0002] A circuit breaker is a protective device that automatically disconnects a circuit, primarily used to prevent electrical equipment from being damaged by abnormal conditions such as short circuits and overloads. Its working principle mainly relies on a current sensing mechanism to automatically disconnect the circuit.

[0003] The functions of existing circuit breakers are relatively simple. When the internal current protection mechanism detects a short circuit, overload, or leakage, it will automatically cut off the circuit and open the switch. However, it requires staff to use a crank to push the circuit breaker body outside the distribution cabinet for maintenance. After maintenance, staff also need to push the circuit breaker back into the distribution cabinet. It cannot be quickly closed remotely, making the operation cumbersome, reducing safety, and increasing the workload of staff. Utility Model Content

[0004] In view of the shortcomings in the prior art, this application provides a circuit breaker with fast closing performance.

[0005] The technical solution adopted by this utility model is: a circuit breaker with fast closing performance, including a circuit breaker body and a distribution cabinet, characterized in that: the circuit breaker body is slidably connected to the upper interior of the distribution cabinet; an opening and closing handle is rotatably connected to the outer side of the circuit breaker body via a rotating shaft; a rotating rod is rotatably connected to the inner side of the circuit breaker body; one end of the rotating rod extends to the outside of the circuit breaker body and is fixedly connected to a gear; a rack is fixedly connected to the inner side of the distribution cabinet; the gear meshes with the rack; and a transmission assembly is provided inside the circuit breaker body.

[0006] Preferably, the transmission assembly includes a first limiting rod and a linkage unit. The first limiting rod is fixedly connected to the inner side of the circuit breaker body. A sliding bracket is slidably connected to the outer side of the first limiting rod. A motor is fixedly connected to the top of the sliding bracket. An internal hexagonal sleeve is fixedly connected to the output end of the motor extending to the outer side of the sliding bracket. A worm gear is rotatably connected to the inner side of the circuit breaker body and above the first limiting rod. An external hexagonal head is fixedly connected to one outer end of the worm gear. The internal hexagonal sleeve is fitted onto the external hexagonal head at one outer end of the worm gear. A worm wheel is fixedly connected to the outer side of the rotating rod. The worm wheel meshes with the worm gear. The opening and closing handle can be automatically closed through the linkage unit.

[0007] Preferably, the linkage unit includes a first synchronous pulley, which is fixedly connected to the outside of the rotating rod on the side away from the worm gear. One end of the rotating shaft is fixedly connected to a second synchronous pulley. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt drive through the inner wall of the circuit breaker body.

[0008] Preferably, an electric telescopic rod is fixedly connected to one side of the inner wall of the circuit breaker body, and the output end of the electric telescopic rod is fixedly connected to the sliding bracket.

[0009] Preferably, limit sliders are fixedly connected to both outer sides of the circuit breaker body, and second limit rods are fixedly connected to both sides of the circuit breaker body inside the distribution cabinet. The two limit sliders are slidably connected to the outside of the corresponding second limit rods, and a spring is provided outside the second limit rods between the limit sliders and the inner wall of the distribution cabinet.

[0010] Preferably, sliding strips are symmetrically fixedly connected to both outer sides of the circuit breaker body, and the circuit breaker body is slidably connected to the distribution cabinet through multiple sliding strips.

[0011] Preferably, the outside of the opening and closing handle is provided with anti-slip texture, and the outside of the sliding strip is provided with a frosted layer.

[0012] Preferably, both the motor and the electric telescopic rod are electrically connected to an external controller, and the elastic force of the spring is greater than the frictional force between the multiple sliding bars and the inner wall of the distribution cabinet.

[0013] The beneficial effects of this utility model are:

[0014] 1. When the circuit protection mechanism inside the circuit breaker detects a short circuit, overload, or leakage, this device can automatically move the circuit breaker body to the outside of the distribution cabinet for easy maintenance. At the same time, it can also drive the opening and closing handle downwards to open the circuit, thus achieving protection against short circuit, overload, or leakage. After the current interruption, overload, or leakage problem is resolved, the internal components can drive the circuit breaker body back into the distribution cabinet and simultaneously drive the opening and closing handle to close the circuit again, achieving remote and rapid closing and avoiding the inconvenience of manual closing by personnel on site.

[0015] 2. When the circuit breaker is opened and closed, the main body of the device moves automatically outward and inward, avoiding the trouble of manually rotating it with a crank, increasing safety and reducing the workload of the staff.

[0016] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention.

[0018] Figure 2 This is a side sectional view of the present invention.

[0019] Figure 3 This is a perspective view of the main body of the circuit breaker of this utility model.

[0020] Figure 4 This is a side sectional view of the main body of the circuit breaker of this utility model.

[0021] Figure 5 This is a perspective view of the motor and worm gear in this utility model.

[0022] Figure 6 For the present utility model Figure 4 Enlarged view of point A in the middle.

[0023] Figure 7 For the present utility model Figure 4 Enlarged view of section B in the middle.

[0024] Figure 1-7 In the middle: 1. Circuit breaker body; 2. Distribution cabinet; 3. Rotating shaft; 4. Opening and closing handle; 5. Rotating rod; 6. Gear; 7. Rack; 8. First limit rod; 9. Sliding bracket; 10. Motor; 11. Hex socket sleeve; 12. Worm gear; 13. Worm wheel; 14. First synchronous pulley; 15. Second synchronous pulley; 16. Synchronous belt; 17. Electric telescopic rod; 18. Limit slider; 19. Second limit rod; 20. Spring; 21. Sliding bar. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] This utility model provides a circuit breaker with fast closing performance.

[0028] In this embodiment, refer to Figure 1-7The circuit breaker with fast closing performance includes a circuit breaker body 1 and a distribution cabinet 2. Its features include: the circuit breaker body 1 is slidably connected to the upper interior of the distribution cabinet 2; a closing / opening handle 4 is rotatably connected to the outer side of the circuit breaker body 1 via a rotating shaft 3; a rotating rod 5 is rotatably connected to the inner side of the circuit breaker body 1; one end of the rotating rod 5 extends to the outer side of the circuit breaker body 1 and is fixedly connected to a gear 6; a rack 7 is fixedly connected to the inner side of the distribution cabinet 2; the gear 6 meshes with the rack 7; and a transmission assembly is provided inside the circuit breaker body 1.

[0029] Specifically, the transmission assembly includes a first limiting rod 8 and a linkage unit. The first limiting rod 8 is fixedly connected to one side of the inside of the circuit breaker body 1. A sliding bracket 9 is slidably connected to the outside of the first limiting rod 8. A motor 10 is fixedly connected to the top of the sliding bracket 9. An internal hexagonal sleeve 11 is fixedly connected to the output end of the motor 10 extending to the outside of the sliding bracket 9. A worm gear 12 is rotatably connected to one side of the inside of the circuit breaker body 1 and above the first limiting rod 8. An external hexagonal head is fixedly connected to one end of the worm gear 12. The internal hexagonal sleeve 11... A hexagonal head is fitted on one end of the worm gear 12. A worm wheel 13 is fixedly connected to the outside of the rotating rod 5. The worm wheel 13 is meshed with the worm gear 12. The opening and closing handle 4 can be automatically closed through the linkage unit. The linkage unit includes a first synchronous pulley 14, which is fixedly connected to the outside of the rotating rod 5 on the side away from the worm wheel 13. A second synchronous pulley 15 is fixedly connected to one end of the rotating shaft 3. The first synchronous pulley 14 and the second synchronous pulley 15 are connected through the inner wall of the circuit breaker body 1 by a synchronous belt 16.

[0030] Through the above technical solution, when the circuit protection mechanism inside the circuit breaker body 1 detects a current short circuit, overload, or leakage, it can transmit a signal to an external controller. The external controller controls the output end of the electric telescopic rod 17 to drive the motor 10 to move to one side until the internal hexagonal sleeve 11 at the output end of the motor 10 disengages from the external hexagonal head at one end of the worm gear 12. This causes the elastic force of the two springs 20 to push the limit slider 18 and the circuit breaker body 1 to move outwards from the distribution cabinet 2, and simultaneously drive the gear 6 to follow. The gear 6, through its meshing relationship with the rack 7, drives the rotating rod 5 and the first synchronous pulley 14 to rotate. The first synchronous pulley 14 then drives the second synchronous pulley 15 and the rotating shaft 3 to rotate through the synchronous belt 16. The rotating shaft 3 then drives the opening and closing handle 4 downwards to open the circuit, thereby disconnecting the current and realizing current short circuit, overload, or leakage protection. After the current interruption, overload, or leakage problem is resolved, the circuit breaker can be restarted by the external controller. The electric telescopic rod 17 is activated, causing its output end to drive the sliding bracket 9 and the motor 10 to move until the internal hexagonal sleeve 11 at the output end of the motor 10 is re-fitted onto the external hexagonal head at one end of the worm gear 12. Then, the motor 10 is started again, causing its output end to drive the worm gear 12 to rotate. The worm gear 12 then drives the worm wheel 13 and the rotating rod 5 to rotate through meshing. This causes the rotating rod 5 to drive the external gear 6 and the first synchronous wheel 14 to rotate. By performing the operation in the reverse order of the above process, the circuit breaker body 1 can be moved into the distribution cabinet 2, and the opening and closing handle 4 can be driven to close the circuit breaker again. This achieves remote and rapid closing, avoiding the trouble of manual closing by personnel on site. Furthermore, the circuit breaker body 1 moves automatically outward and inward during opening and closing, avoiding the trouble of manual rotation by personnel, increasing safety and reducing the workload of personnel.

[0031] Specifically, an electric telescopic rod 17 is fixedly connected to one side of the inner wall of the circuit breaker body 1. The output end of the electric telescopic rod 17 is fixedly connected to the sliding bracket 9. Limiting sliders 18 are fixedly connected to both sides of the outer side of the circuit breaker body 1. Second limiting rods 19 are fixedly connected to both sides of the circuit breaker body 1 inside the distribution cabinet 2. The two limiting sliders 18 are slidably connected to the outside of the corresponding second limiting rods 19. A spring 20 is provided outside the second limiting rods 19 and between the limiting sliders 18 and the inner wall of the distribution cabinet 2.

[0032] Through the above technical solution, the circuit breaker body 1 can be moved and limited by the set limit slider 18.

[0033] Specifically, sliding strips 21 are symmetrically fixedly connected to both sides of the circuit breaker body 1. The circuit breaker body 1 is slidably connected to the distribution cabinet 2 through multiple sliding strips 21. The opening and closing handle 4 is provided with anti-slip texture on the outside. The sliding strips 21 are provided with a frosted layer on the outside. The motor 10 and the electric telescopic rod 17 are electrically connected to the external controller. The elastic force of the spring 20 is greater than the friction between the multiple sliding strips 21 and the inner wall of the distribution cabinet 2.

[0034] Through the above technical solution, the sliding strip 21 that drives the frosted layer can provide a certain friction force to the circuit breaker body 1 when it slides, so as to avoid the excessive rebound force of the spring 20 causing the circuit breaker body 1 to collide with the distribution cabinet 2 and thus be damaged, thereby further improving the safety of use.

[0035] Working principle: When the circuit protection mechanism inside the circuit breaker body 1 detects a short circuit, overload, or leakage, it transmits a signal to an external controller. The external controller then controls the output end of the electric telescopic rod 17 to move the motor 10 to one side until the internal hexagonal sleeve 11 at the output end of the motor 10 disengages from the external hexagonal head at one end of the worm gear 12. This causes the elastic force of the two springs 20 to push the limit slider 18 and the circuit breaker body 1 towards the outside of the distribution cabinet 2, and simultaneously drives the gear 6 to follow suit. This causes the gear 6 to mesh with the rack 7. The coupling relationship drives the rotating rod 5 and the first synchronous pulley 14 to rotate. The first synchronous pulley 14 then drives the second synchronous pulley 15 and the rotating shaft 3 to rotate via the synchronous belt 16. The rotating shaft 3 then drives the opening and closing handle 4 downward to open the circuit breaker, thereby disconnecting the current and realizing current short circuit, overload, or leakage protection. After the current interruption, overload, or leakage problem is resolved, the electric telescopic rod 17 can be restarted through the external controller, so that the output end of the electric telescopic rod 17 drives the sliding bracket 9 and the motor 10 to move until the internal hexagonal sleeve 11 at the output end of the motor 10 is restarted. The worm gear 12 is fitted onto an external hexagonal head. Then, the motor 10 is started, causing its output to drive the worm gear 12 to rotate. The worm gear 12, through meshing, drives the worm wheel 13 and the rotating rod 5 to rotate. The rotating rod 5 then drives the external gear 6 and the first synchronous wheel 14 to rotate. By performing the reverse operation, the circuit breaker body 1 moves into the distribution cabinet 2, simultaneously reclosing the circuit breaker with the opening / closing handle 4. This achieves remote, rapid closing, avoiding the inconvenience of manual closing by personnel on-site. Furthermore, the circuit breaker body 1 automatically moves outwards and inwards during opening and closing, eliminating the need for manual cranking and increasing safety while reducing workload. The limit slider 18 allows the circuit breaker body 1 to slide and be limited. The sliding strip 21, which drives the frosted layer, provides friction during sliding, preventing excessive spring rebound from causing the circuit breaker body 1 to collide with the distribution cabinet 2 and resulting in damage, further enhancing safety.

[0036] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A circuit breaker with fast closing capability, comprising a circuit breaker body and a distribution cabinet, characterized in that: The circuit breaker body is slidably connected to the upper part of the distribution cabinet. The outer side of the circuit breaker body is rotatably connected to the opening and closing handle via a rotating shaft. The inner side of the circuit breaker body is rotatably connected to a rotating rod. One end of the rotating rod extends to the outside of the circuit breaker body and is fixedly connected to a gear. The inner side of the distribution cabinet is fixedly connected to a rack. The gear and the rack are meshed together. The circuit breaker body is equipped with a transmission assembly inside.

2. The circuit breaker with fast closing performance according to claim 1, characterized in that: The transmission assembly includes a first limiting rod and a linkage unit. The first limiting rod is fixedly connected to the inside of the circuit breaker body. A sliding bracket is slidably connected to the outside of the first limiting rod. A motor is fixedly connected to the top of the sliding bracket. An internal hexagonal sleeve is fixedly connected to the output end of the motor extending to the outside of the sliding bracket. A worm gear is rotatably connected to the inside of the circuit breaker body and above the first limiting rod. An external hexagonal head is fixedly connected to one end of the worm gear. The internal hexagonal sleeve is fitted onto the external hexagonal head at one end of the worm gear. A worm wheel is fixedly connected to the outside of the rotating rod. The worm wheel meshes with the worm gear. The opening and closing handle can be automatically closed through the linkage unit.

3. The circuit breaker with fast closing performance according to claim 2, characterized in that: The linkage unit includes a first synchronous pulley, which is fixedly connected to the outside of the rotating rod on the side away from the worm gear. One end of the rotating shaft is fixedly connected to a second synchronous pulley. The first synchronous pulley and the second synchronous pulley are connected through the inner wall of the circuit breaker body by a synchronous belt drive.

4. The circuit breaker with fast closing performance according to claim 2, characterized in that: An electric telescopic rod is fixedly connected to one side of the inner wall of the circuit breaker body, and the output end of the electric telescopic rod is fixedly connected to the sliding bracket.

5. The circuit breaker with fast closing performance according to claim 4, characterized in that: Limiting sliders are fixedly connected to both sides of the outer side of the circuit breaker body. Second limiting rods are fixedly connected to both sides of the circuit breaker body inside the distribution cabinet. The two limiting sliders are slidably connected to the outside of the corresponding second limiting rods. A spring is provided outside the second limiting rods and between the limiting sliders and the inner wall of the distribution cabinet.

6. The circuit breaker with fast closing performance according to claim 5, characterized in that: The circuit breaker body has symmetrical sliding bars fixedly connected to both sides of its exterior, and the circuit breaker body is slidably connected to the distribution cabinet through multiple sliding bars.

7. The circuit breaker with fast closing performance according to claim 6, characterized in that: The opening and closing handle is provided with anti-slip texture on the outside, and the sliding strip is provided with a frosted layer on the outside.

8. The circuit breaker with fast closing performance according to claim 6, characterized in that: Both the motor and the electric telescopic rod are electrically connected to an external controller, and the elastic force of the spring is greater than the frictional force between the multiple sliding bars and the inner wall of the distribution cabinet.

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