Safe air switch circuit breaker

Abstract

The utility model relates to the technical field of circuit breakers, and discloses a safe air switch circuit breaker, which comprises a fixed plate and a circuit breaker main body arranged on the fixed plate, a connecting block is fixedly arranged on the circuit breaker main body, a connecting groove is arranged on the connecting block, and a connecting plate is arranged in the connecting groove. According to the utility model, the connecting ring on the wire is sleeved on the insulating block, the wire body is clamped in the fixing clamp, the connecting plate is pushed into the right side of the connecting groove, so that the insulating block is attached to the connecting port, the limiting rod falls into the limiting groove to fix the movable rod, and the connecting ring on the wire and the connecting port are fixed together; the heat conduction copper sheet can conduct the surrounding temperature to the bottom of the sealing cover, mercury liquid in the sealing cover expands to remove the limiting rod from the limiting groove, then the movable rod is ejected outwards through rebounding of the reset spring, the connecting ring on the electric wire is disconnected from the connecting port, and the electric wire is prevented from being damaged. Therefore, the effects of simple installation and operation and automatic disconnection when the ambient temperature is too high are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a safe air-open circuit breaker. Background Art

[0002] The air circuit breaker, also known as the air switch, is a type of circuit breaker. It is a switch protector that automatically disconnects when the current in the circuit exceeds the rated current. It is a very important electrical appliance in the low-voltage power distribution network and electric traction.

[0003] An existing safe air circuit breaker (Announcement No.: CN219696362U) has at least the following disadvantages: when installing the disconnector, workers need to manually connect the wires to the upper and lower interfaces of the disconnector with screws. When a large number of installations are required, the operation is very cumbersome, and other connection devices will be installed around the disconnector. When spontaneous combustion occurs around it, the disconnector cannot be automatically disconnected in time, which can easily cause the fire to expand and increase the danger. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a safe air-open circuit breaker.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A safe air-open circuit breaker comprises a fixed plate and a circuit breaker body arranged on the fixed plate, wherein a connecting block is fixedly installed on the circuit breaker body, a connecting groove is provided on the connecting block, a connecting plate is arranged in the connecting groove, an insulating block is fixedly installed on the top right side of the connecting plate, a connecting port is fixedly installed in the connecting groove at a position corresponding to the insulating block, the insulating block can be stuck in the connecting port, a fixing clamp is fixedly installed on the bottom right side of the connecting plate, a movable rod is fixedly installed on the left side of the connecting plate, a movable groove is provided on the connecting block, the movable rod passes through the movable groove and is connected to the connecting plate, a limiting groove is provided on the movable rod, a sliding groove is provided at a position corresponding to the limiting groove on the connecting block, a limiting rod is movably installed in the sliding groove, and a circle of top plate is fixedly installed on the outer side of the limiting rod.

[0007] As a further solution of the utility model, a sealing cover is provided in the slide groove, the sealing cover is wrapped around the bottom outer side of the limiting rod, a movable block is movably installed in the sealing cover, mercury liquid is provided below the movable block, a top rod is fixedly installed above the movable block, and a top plate is fixedly installed on the side wall of the limiting rod.

[0008] As a further solution of the utility model, a reset plate is fixedly mounted on the movable rod, a reset spring is arranged in the movable groove, the reset spring is located on the right side of the reset plate, and the movable rod passes through the reset spring.

[0009] As a further solution of the utility model, a heat-conducting copper sheet is fixedly mounted on the outer side of the connecting block, and the heat-conducting copper sheet is connected to the bottom of the sealing cover.

[0010] As a further solution of the utility model, a sealing strip is arranged above the movable block, and the sealing strip is fixed on the surface of the movable block.

[0011] As a further solution of the utility model, a clamping block is fixedly installed on the back of the circuit breaker body, and a clamping slot is provided on the fixing plate, and the clamping block can be movably engaged in the clamping slot.

[0012] As a further solution of the utility model, the bottom of the limiting rod can be engaged in the limiting groove, and the limiting rod can limit the movable rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, by putting the connecting ring on the wire on the insulating block, and then clamping the wire body in the fixing clip, and then pushing the movable rod to the right, pushing the connecting plate into the right side of the connecting groove, so that the insulating block fits with the connecting port, the limiting rod will fall into the limiting groove to fix the movable rod, and the connecting ring on the wire is fixed to the connecting port to complete the line connection, thereby achieving the effect of simple operation and improved installation efficiency.

[0015] 2. In the utility model, the ambient temperature can be conducted to the bottom of the sealing cover through the heat-conducting copper sheet. When the bottom of the sealing cover becomes hot, the volume of the mercury liquid in the sealing cover will expand to push the movable block upward, and the push rod on the movable block will push the top plate to remove the limit rod from the limit groove. Then, the movable rod will be pushed outward by the rebound of the reset spring to disconnect the connecting ring on the wire from the connecting port, thereby achieving the effect of automatically disconnecting the connection when the ambient temperature is too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a safe air-open circuit breaker proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a safe air-open circuit breaker proposed by the utility model;

[0018] Figure 3 For this utility model Figure 1 A in the middle shows the enlarged picture;

[0019] Figure 4 A schematic diagram of the structure of parts of a safe air-open circuit breaker proposed by the utility model;

[0020] In the figure: 1. fixing plate; 2. circuit breaker body; 3. connecting block; 4. connecting groove; 5. movable rod; 6. clamping block; 7. clamping groove; 8. connecting plate; 9. movable groove; 10. reset spring; 11. limiting rod; 12. heat-conducting copper sheet; 13. connecting port; 14. slide groove; 15. top plate; 16. sealing cover; 17. sealing strip; 18. movable block; 19. top rod; 20. mercury liquid; 21. limiting groove; 22. insulating block; 23. fixing clip; 24. reset plate. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Reference Figure 1-Figure 4A safe air-open circuit breaker comprises a fixing plate 1 and a circuit breaker body 2 arranged on the fixing plate 1, a connecting block 3 is fixedly installed on the circuit breaker body 2, a connecting groove 4 is provided on the connecting block 3, a connecting plate 8 is arranged in the connecting groove 4, an insulating block 22 is fixedly installed on the top right side of the connecting plate 8, a connecting port 13 is fixedly installed at a position corresponding to the insulating block 22 in the connecting groove 4, the insulating block 22 can be stuck in the connecting port 13, a fixing clip 23 is fixedly installed on the bottom right side of the connecting plate 8, a movable rod 5 is fixedly installed on the left side of the connecting plate 8, a movable groove 9 is provided on the connecting block 3, and the movable rod 5 passes through the movable groove 9 and is connected to the connecting plate 8 A limiting groove 21 is provided on the movable rod 5, and a slide groove 14 is provided at a position corresponding to the limiting groove 21 on the connecting block 3. A limiting rod 11 is movably installed in the slide groove 14, and a circle of top plate 15 is fixedly installed on the outer side of the limiting rod 11. The bottom of the limiting rod 11 can be engaged in the limiting groove 21, and the limiting rod 11 can limit the movable rod 5. By putting the connecting ring on the wire on the insulating block 22, and then clamping the wire body in the fixing clip 23, the movable rod 5 is then pushed to the right, and the connecting plate 8 is pushed into the right side of the connecting groove 4, so that the insulating block 22 is fitted with the connecting port 13. At this time, the limiting rod 11 will fall into the limiting groove 21 to fix the movable rod 5.

[0025] In this embodiment, a heat-conducting copper sheet 12 is fixedly installed on the outer side of the connecting block 3, and the heat-conducting copper sheet 12 is connected to the bottom of the sealing cover 16. A sealing cover 16 is arranged in the slide groove 14, and the sealing cover 16 is wrapped around the bottom outer side of the limiting rod 11. A movable block 18 is movably installed in the sealing cover 16, and mercury liquid 20 is arranged below the movable block 18. A push rod 19 is fixedly installed above the movable block 18. A top plate 15 is fixedly installed on the side wall of the limiting rod 11, and a sealing strip 17 is arranged above the movable block 18. The sealing strip 17 is fixed to the surface of the movable block 18. The bottom of the sealing cover 16 will become hot through the heat-conducting copper sheet 12, and the volume of the mercury liquid 20 in the sealing cover 16 will expand to push the movable block 18 upward, and the push rod 19 on the movable block 18 will push the top plate 15 to remove the limiting rod 11 from the limiting groove 21.

[0026] In this embodiment, a reset plate 24 is fixedly mounted on the movable rod 5, and a reset spring 10 is provided in the movable groove 9. The reset spring 10 is located on the right side of the reset plate 24. The movable rod 5 passes through the reset spring 10. The rebound of the reset spring 10 will push the movable rod 5 outward, causing the connecting plate 8 to move backward, thereby disconnecting the connecting ring on the wire from the connecting port 13.

[0027] In this embodiment, a clamping block 6 is fixedly mounted on the back of the circuit breaker body 2, and a clamping slot 7 is provided on the fixing plate 1. The clamping block 6 can be movably engaged in the clamping slot 7, so as to facilitate quick disassembly and assembly of the device.

[0028] From the above description, it can be seen that the above-mentioned embodiment of the utility model achieves the following technical effects: by putting the connecting ring on the wire on the insulating block 22, and then clamping the wire body in the fixing clamp 23, and then pushing the movable rod 5 to the right, pushing the connecting plate 8 into the right side of the connecting groove 4, so that the insulating block 22 is fitted with the connecting port 13, at this time, the limiting rod 11 will fall into the limiting groove 21 to fix the movable rod 5, and the connecting ring on the wire will be fixed together with the connecting port 13 to complete the line connection. When the ambient temperature is too high, the bottom of the sealing cover 16 will become hot, and the volume of the mercury liquid 20 in the sealing cover 16 will expand to push the movable block 18 upward, and the top rod 19 on the movable block 18 will push the top plate 15 to remove the limiting rod 11 from the limiting groove 21, and then the movable rod 5 will be pushed outward by the rebound of the reset spring 10, so that the connecting plate 8 moves backward, and the connecting ring on the wire is disconnected from the connecting port 13, so as to achieve the effect of automatically disconnecting the connection when the ambient temperature is too high.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A safe air-break circuit breaker, comprising a fixing plate (1), and a circuit breaker body (2) arranged on the fixing plate (1), characterized in that: A connection block (3) is fixedly mounted on the circuit breaker body (2), a connection groove (4) is provided on the connection block (3), a connection plate (8) is arranged in the connection groove (4), an insulating block (22) is fixedly mounted on the top right side of the connection plate (8), a connection port (13) is fixedly mounted at a position corresponding to the insulating block (22) in the connection groove (4), the insulating block (22) can be snapped into the connection port (13), and a fixing clip (23) is fixedly mounted on the bottom right side of the connection plate (8) A movable rod (5) is fixedly installed on the left side of the connecting plate (8), a movable groove (9) is provided on the connecting block (3), the movable rod (5) passes through the movable groove (9) and is connected to the connecting plate (8), a limiting groove (21) is provided on the movable rod (5), a sliding groove (14) is provided on the connecting block (3) at a position corresponding to the limiting groove (21), a limiting rod (11) is movably installed in the sliding groove (14), and a top plate (15) is fixedly installed on the outer side of the limiting rod (11).

2. A safe air-open circuit breaker according to claim 1, characterized in that: A sealing cover (16) is provided in the slide groove (14), the sealing cover (16) is wrapped around the outer side of the bottom of the limiting rod (11), a movable block (18) is movably installed in the sealing cover (16), mercury liquid (20) is provided below the movable block (18), a top rod (19) is fixedly installed above the movable block (18), and a top plate (15) is fixedly installed on the side wall of the limiting rod (11).

3. A safe air-open circuit breaker according to claim 1, characterized in that: A reset plate (24) is fixedly mounted on the movable rod (5), a reset spring (10) is arranged in the movable groove (9), the reset spring (10) is located on the right side of the reset plate (24), and the movable rod (5) passes through the reset spring (10).

4. A safe air circuit breaker according to claim 1, characterized in that: A heat-conducting copper sheet (12) is fixedly mounted on the outer side of the connection block (3), and the heat-conducting copper sheet (12) is connected to the bottom of the sealing cover (16).

5. A safe air-open circuit breaker according to claim 2, characterized in that: A sealing strip (17) is provided above the movable block (18), and the sealing strip (17) is fixed on the surface of the movable block (18).

6. A safe air-open circuit breaker according to claim 1, characterized in that: A clamping block (6) is fixedly mounted on the back of the circuit breaker body (2), a clamping slot (7) is provided on the fixing plate (1), and the clamping block (6) can be movably clamped in the clamping slot (7).

7. A safe air-open circuit breaker according to claim 1, characterized in that: The bottom of the limiting rod (11) can be engaged in the limiting groove (21), and the limiting rod (11) can limit the movable rod (5).

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