Disconnecting switch circuit breaker

Abstract

A disconnecting switch circuit breaker comprises a frame, a solid-sealed polar pole, a main shaft and a grounding installation shaft are installed on the frame, a static contact is arranged on the solid-sealed polar pole, a moving contact is arranged on the main shaft, first protruding blocks are arranged on the inner walls of the two sides of the moving contact at intervals, and a plurality of adjusting grooves are formed in the static contact at intervals. The adjusting groove is internally provided with telescopic second convex blocks, a first positioning gap used for being clamped with the first convex blocks is arranged between the second convex blocks, the first positioning gap formed by the first convex blocks is clamped with the second convex blocks, so that the connection between the moving contact and the static contact can be enhanced, and the connection effect cannot be influenced by frequent switching for many times; during use, the first convex block can press the second convex block into the adjusting groove, and then the second convex block is clamped with the first positioning gap, so that the use stability and safety of the disconnecting switch circuit breaker are improved, the use effect is enhanced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to an isolating switch circuit breaker, belonging to the field of circuit breakers. Background Art

[0002] The power supply network mainly adopts the inflatable cabinet ring network power supply mode, which can improve the reliability of power supply. Users can obtain power from the ring network unit end of the ring network cabinet to reduce the power outage area caused by accidents. The inflatable switch cabinet is the main equipment for ring network power supply. It uses inert gas as the arc extinguishing and insulating medium. The switch has the function of breaking, and the break voltage is easy to make higher, allowing more continuous breaking times, suitable for frequent operation, and no fire hazard. The circuit breaker of the isolating switch is an outdoor high-voltage power distribution equipment, which is mainly used to break and close the load current, overload current and short-circuit current in the power system.

[0003] Existing circuit breakers form electrical connections through moving contacts and stationary contacts or grounding contacts, but this structure has a large movement force. After repeated switching, it is easy to cause misalignment or gaps, resulting in poor contact, affecting safety and stability. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide an isolating switch circuit breaker.

[0005] A disconnecting switch circuit breaker comprises a frame, on which a sealed pole, a main shaft and a grounding mounting shaft are mounted, a static contact is arranged on the sealed pole, a moving contact is arranged on the main shaft, first protrusions are arranged at intervals on the inner walls on both sides of the moving contact, a plurality of adjustment grooves are arranged at intervals on the static contact, a retractable second protrusion is arranged in the adjustment groove, a first positioning gap for engaging with the first protrusion is arranged between the second protrusions, the connection between the moving contact and the static contact can be strengthened by engaging the first positioning gap formed by the first protrusion with the second protrusion, and the connection effect will not be affected by frequent switching, and when in use, the first protrusion can press the second protrusion into the adjustment groove and then engage with the first positioning gap, thereby improving the stability and safety of the disconnecting switch circuit breaker and enhancing the use effect and service life.

[0006] Furthermore, a support spring is connected to the bottom of the second protrusion, and the other end of the support spring is fixed to the bottom of the adjustment groove. The support spring is used to use elastic force to push the second protrusion out of the adjustment groove to form a positioning gap for engaging with the first protrusion. The support spring can provide elastic force to push the second protrusion out of the adjustment groove to form a first positioning gap, and engage with the first protrusion to prevent loose connection due to vibration and the like.

[0007] Preferably, the number of the second protrusions is at least two, the number of the adjustment slots is adapted to the second protrusions, and the number of the second protrusions is at least two to form a first positioning gap and engage with the first protrusion. The number of the second protrusions can be adjusted, increased or decreased, to adapt to different models of circuit breakers.

[0008] Furthermore, the grounding mounting shaft is provided with a grounding contact for forming a grounding connection with the moving contact, and a plurality of retractable third protrusions are arranged at intervals on the grounding contact, and a second positioning gap for engaging with the first protrusion is arranged between the third protrusions, and a third protrusion is also added to the grounding contact, and the third protrusion is also telescopically arranged, and the retractable elastic force is provided by a spring.

[0009] Furthermore, a third positioning gap for engaging with the second or third projection is provided between the first projections. The third positioning gap engages with the first projection when grounded, so that the circuit breaker is not affected in the grounded state, thereby ensuring safety in use.

[0010] Furthermore, a grounding buffer pad is provided on the grounding contact, and the grounding buffer pad can provide buffering when the moving contact is grounded, thereby preventing damage to the grounding contact and the moving contact.

[0011] Preferably, an isolation buffer pad is provided on the static contact, and the isolation buffer pad can provide buffering when the moving contact is closed to prevent damage to the static contact and the moving contact.

[0012] Preferably, a mounting plate is provided on one side of the frame, and an isolation mechanism is provided on the mounting plate for controlling the rotation of the main shaft to perform closing or grounding actions. The sealed pole is connected to a supporting spring energy storage operating mechanism, and personnel can rotate the main shaft through the isolation mechanism to perform closing and grounding actions, thereby realizing the function of the circuit breaker.

[0013] The beneficial effects of the utility model are as follows: the first positioning gap formed by setting the first protrusion and the second protrusion are engaged with each other to strengthen the connection between the moving contact and the static contact, and frequent switching will not affect the connection effect. When in use, the first protrusion can press the second protrusion into the adjustment groove and then engage with the first positioning gap, thereby improving the stability and safety of the use of the isolating switch circuit breaker and enhancing the use effect and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a schematic diagram of removing some structures in the utility model;

[0017] Figure 3 for Figure 2 A magnified detail of the center point A;

[0018] Figure 4 It is a schematic diagram of the main structure of the static contact in the utility model;

[0019] Figure 5 It is a side sectional view of the static contact in the utility model;

[0020] Figure 6 It is a schematic diagram of the main structure of the grounding contact;

[0021] In the figure, 1. frame; 2. sealed pole; 21. static contact; 22. adjustment groove; 23. second protrusion; 24. first positioning gap; 25. support spring; 26. isolation buffer pad; 3. main shaft; 31. moving contact; 32. first protrusion; 4. grounding mounting shaft; 41. grounding contact; 42. third protrusion; 43. grounding buffer pad; 5. mounting plate; 51. isolation mechanism; 52. spring energy storage type operating mechanism. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0023] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0024] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0025] like Figure 1-6As shown, an embodiment of an isolating switch circuit breaker of the utility model comprises a frame 1, on which a sealed pole 2, a main shaft 3 and a grounding mounting shaft 4 are mounted, a static contact 21 is arranged on the sealed pole 2, a moving contact 31 is arranged on the main shaft 3, first protrusions 32 are arranged at intervals on the inner walls on both sides of the moving contact 31, a plurality of adjustment grooves 22 are arranged at intervals on the static contact 21, a retractable second protrusion 23 is arranged in the adjustment groove 22, a first positioning gap 24 for engaging with the first protrusion 32 is arranged between the second protrusions 23, the first positioning gap 24 formed by the first protrusion 32 and engaged with the second protrusion 23 can strengthen the connection between the moving contact 31 and the static contact 21, and frequent switching will not affect the connection effect, when in use, the first protrusion 32 can press the second protrusion 23 into the adjustment groove 22, and then engage with the first positioning gap 24, so as to improve the stability and safety of the isolating switch circuit breaker, and enhance the use effect and service life.

[0026] A support spring 25 is connected to the bottom of the second protrusion 23, and the other end of the support spring 25 is fixed to the bottom of the adjustment groove 22. The support spring 25 is used to use elastic force to push the second protrusion 23 out of the adjustment groove 22 to form a positioning gap for engaging with the first protrusion 32. The support spring 25 can provide elastic force to push the second protrusion 23 out of the adjustment groove 22 to form a first positioning gap 24, which is engaged with the first protrusion 32 to prevent loose connection due to vibration and the like.

[0027] The number of the second protrusions 23 is at least two, and the number of the adjustment slots 22 is adapted to the second protrusions 23. The number of the second protrusions 23 is at least two to form the first positioning gap 24 and the first protrusion 32. The number of the second protrusions 23 can be adjusted, increased or decreased, to adapt to different models of circuit breakers.

[0028] A grounding contact 41 for forming a grounding connection with the moving contact 31 is provided on the grounding mounting shaft 4, and a plurality of retractable third protrusions 42 are provided at intervals on the grounding contact 41, and a second positioning gap for engaging with the first protrusion 32 is provided between the third protrusions 42. A third protrusion 42 is also added to the grounding contact 41, and the third protrusion 42 is also retractably arranged, and the retractable elastic force is provided by a spring.

[0029] A third positioning gap is provided between the first protrusions 32 for engaging with the second protrusions 23 or the third protrusions 42. The third positioning gap engages with the first protrusions 32 when grounded, so that the circuit breaker will not be affected in the grounded state, thereby ensuring safety in use.

[0030] A grounding buffer pad 43 is provided on the grounding contact 41 . The grounding buffer pad 43 can provide buffering when the moving contact 31 is grounded, thereby preventing damage to the grounding contact 41 and the moving contact 31 .

[0031] The outer edges of the first protrusion, the second protrusion and the third protrusion are in an arc shape, so that they can be more smoothly engaged with the first positioning gap and the second positioning gap without causing any jamming.

[0032] A mounting plate 5 is provided on one side of the frame 1, and an isolation mechanism 51 is provided on the mounting plate 5 for controlling the rotation of the main shaft 3 to perform closing or grounding actions. The sealed pole 2 is connected to a support spring 25 energy storage operating mechanism. Personnel can rotate the main shaft 3 through the isolation mechanism 51 to perform closing and grounding actions to realize the function of the circuit breaker.

[0033] Although the present invention has been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed. The present invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. An isolating switch circuit breaker, characterized in that: It comprises a frame, on which a sealed pole, a main shaft and a grounding mounting shaft are mounted, the sealed pole is provided with a static contact, the main shaft is provided with a moving contact, first protrusions are provided at intervals on the inner walls on both sides of the moving contact, a plurality of adjustment grooves are provided at intervals on the static contact, retractable second protrusions are provided in the adjustment grooves, and first positioning gaps for engaging with the first protrusions are provided between the second protrusions.

2. The isolating switch circuit breaker according to claim 1, characterized in that: A support spring is connected to the bottom of the second protrusion, and the other end of the support spring is fixed to the bottom of the adjustment slot. The support spring is used to use elastic force to push the second protrusion out of the adjustment slot to form a positioning gap for engaging with the first protrusion.

3. The isolating switch circuit breaker according to claim 2, characterized in that: The number of the second protrusions is at least two, and the number of the adjustment slots matches the number of the second protrusions.

4. The isolating switch circuit breaker according to claim 1, characterized in that: The grounding mounting shaft is provided with a grounding contact for forming a grounding connection with the moving contact, a plurality of retractable third protrusions are arranged at intervals on the grounding contact, and a second positioning gap for clamping with the first protrusion is arranged between the third protrusions.

5. The isolating switch circuit breaker according to claim 4, characterized in that: A third positioning gap is provided between the first protrusions for clamping with the second protrusion or the third protrusion.

6. The isolating switch circuit breaker according to claim 4, characterized in that: A grounding buffer pad is provided on the grounding contact.

7. The isolating switch circuit breaker according to claim 1, characterized in that: An isolation buffer pad is arranged on the static contact.

8. The isolating switch circuit breaker according to claim 1, characterized in that: A mounting plate is provided on one side of the frame, and an isolation mechanism for controlling the rotation of the main shaft to perform closing or grounding actions is provided on the mounting plate. The sealed pole is connected to a spring energy storage type operating mechanism.

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