A quick positioning and clamping mounting structure for circuit breaker detection

Abstract

The application relates to the technical field of circuit breakers and discloses a quick positioning and clamping mounting structure for circuit breaker detection, which comprises mounting frames, the mounting frames are provided in two, a reinforcing rod is fixedly connected between the two mounting frames, clamping seats are slidably connected to the two ends of the mounting frames, a transmission mechanism is slidably connected to the mounting frames, a pressure rod mechanism is arranged above the mounting frames, the pressure rod mechanism drives multiple clamping seats through the transmission mechanism, the transmission mechanism comprises a transmission frame, a trigger mechanism is arranged between the mounting frame and the transmission frame, detection probes for detecting circuit breakers are arranged on the trigger mechanism, the pressure rod mechanism can also drive the trigger mechanism, the pressure rod mechanism comprises a fixing cylinder, an I-shaped frame is fixedly connected between the fixing cylinder and the mounting frame, a transmission rod is slidably connected in the fixing cylinder, through the above technical scheme, clamping and detection can be realized through single operation.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker technology, and more specifically to a quick-positioning clamping installation structure for circuit breaker testing. Background Technology

[0002] A circuit breaker is a protective switch that can normally open and close circuits and automatically trip in case of overload, short circuit, or undervoltage. It is reusable and is a core protection device in power distribution systems.

[0003] Before leaving the factory, circuit breakers need to be tested in batches, especially the wiring terminals, which need to be tested for safety hazards such as poor conductivity. During the testing process, the circuit breaker needs to be fixed in place before the test probes are brought into contact with the wiring terminals to complete the test.

[0004] In current testing processes, it is mostly necessary to manually adjust the clamping structure to position and fix the circuit breaker first, and then adjust the position of the test probe to align it with the terminal block. The operation steps are cumbersome, require multiple adjustments, slow down the testing efficiency, and cannot achieve the simultaneous operation of quick fixation and probe alignment. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a quick positioning and clamping installation structure for circuit breaker detection, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a quick-positioning clamping installation structure for circuit breaker testing, including a mounting frame. Two mounting frames are provided, and a reinforcing rod is fixedly connected between the two frames. Clamping seats are slidably connected to both ends of each mounting frame. A transmission mechanism is slidably connected to each mounting frame. A pressure rod mechanism is provided above each mounting frame, and the pressure rod mechanism drives multiple clamping seats through the transmission mechanism. The transmission mechanism includes a transmission frame, and a triggering mechanism is provided between the mounting frames and the transmission frame. A detection probe for detecting the circuit breaker is provided on the triggering mechanism, and the pressure rod mechanism can also drive the triggering mechanism.

[0008] It also includes a fixed cylinder in the pressure rod mechanism, an I-beam frame fixedly connected between the fixed cylinder and the mounting frame, a transmission rod slidably connected inside the fixed cylinder, a connecting rod provided outside the fixed cylinder, the connecting rod extending into the fixed cylinder and fixedly connected to the transmission rod, and a pressure plate fixedly connected to one end of the connecting rod located outside the fixed cylinder.

[0009] It also includes a first spring disposed inside the fixed cylinder, the first spring being connected to a transmission rod, one end of the transmission rod extending to the outside of the fixed cylinder.

[0010] It also includes that slide rails are fixedly connected to both ends of the mounting frame, the clamping seat is slidably connected to the slide rails, and a second spring is connected between the clamping seat and the mounting frame.

[0011] It also includes that the transmission frame is located above the mounting frame, the transmission mechanism also includes an inclined plate, the inclined plate is fixedly connected to the lower part of the transmission frame, and the surface of the clamping seat has an inclined surface that cooperates with the inclined plate.

[0012] It also includes a straight surface on the clamping seat, which is connected to an inclined surface and cooperates with the transmission frame.

[0013] It also includes that limiting plates are fixedly connected to both sides of the mounting frame, the transmission frame and the limiting plates are slidably connected, a connecting rod is fixedly connected to the transmission frame, a synchronization plate is fixedly connected between the connecting rods on the two transmission frames, and the transmission rod is located above the synchronization plate.

[0014] It also includes a triggering mechanism comprising a mounting cylinder, a fixing rod fixedly connected to the mounting frame, the mounting cylinder fixedly connected to the fixing rod, the mounting cylinder being located below the transmission frame, the detection probe being slidably connected inside the mounting cylinder, a mounting plate fixedly connected to the transmission frame, a push rod fixedly connected to the mounting plate, the push rod being located above the detection probe, and the push rod cooperating with the detection probe.

[0015] It also includes a limiting ring fixedly connected inside the mounting cylinder, the detection probe and the limiting ring being slidably connected, and a third spring provided inside the mounting cylinder, the third spring being sleeved on the outer wall of the detection probe.

[0016] It also includes multiple limiting plates fixedly connected to the mounting frame, a circuit breaker disposed below the mounting frame, the circuit breaker being located between two clamping seats, the limiting plates cooperating with the circuit breaker, the circuit breaker being provided with wiring terminals, the wiring terminals cooperating with the detection probe, and the clamping seats having square openings that cooperate with the limiting plates.

[0017] The technical solution provided by this invention has the following advantages compared with the prior art:

[0018] 1. This invention, through the cooperation of the pressure rod mechanism, transmission mechanism and triggering mechanism, enables the clamping and detection operations to be completed simultaneously with one hand in one operation. Furthermore, the limiting plate enables precise adjustment of the circuit breaker, ensuring that the wiring terminals on the circuit breaker and the detection probe are on the same vertical line, making the detection convenient and quick.

[0019] 2. This invention utilizes a pressure rod mechanism to simultaneously clamp and position the circuit breaker using multiple clamping seats, eliminating the need for separate adjustments to the clamping positions and effectively improving clamping and positioning efficiency. Simultaneously, during the downward movement of the transmission frame, the mounting plate drives the push rod downwards, pushing the detection probe down along the mounting cylinder. This allows the detection probe to contact the circuit breaker's terminals for direct testing. Clamping and positioning, along with wiring detection, are completed synchronously in the same downward action, eliminating the need for separate steps and significantly simplifying the operation, thus improving circuit breaker testing efficiency. After testing, releasing the pressure rod mechanism resets the first spring, the second spring resets the clamping seats, and the third spring resets the detection probe, allowing for quick removal of the tested circuit breaker and easy placement of the next circuit breaker to be tested, resulting in smoother and more convenient operation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the clamping seat structure in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the pressure bar mechanism in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the transmission mechanism in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the limiting plate structure in an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the limiting piece structure in an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the triggering mechanism structure in an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the triggering mechanism and transmission mechanism in an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the circuit breaker structure in an embodiment of the present invention.

[0030] The labels in the diagram represent: 1. Mounting frame; 101. Reinforcing rod; 2. Pressure rod mechanism; 21. Fixing cylinder; 22. Connecting rod; 23. Pressure plate; 24. Transmission rod; 25. First spring; 3. Clamping seat; 31. Inclined surface; 32. Square opening; 33. Straight surface; 4. Second spring; 5. Transmission mechanism; 51. Transmission frame; 52. Inclined plate; 53. Connecting rod; 54. Synchronization plate; 55. Limiting plate; 6. Triggering mechanism; 61. Mounting plate; 62. Push rod; 63. Mounting cylinder; 64. Third spring; 65. Limiting ring; 7. Detection probe; 8. Fixing rod; 9. I-beam frame; 10. Circuit breaker; 11. Slide rail; 12. Limiting plate; 13. Terminal block. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] The present invention will be further described below with reference to embodiments.

[0033] Example 1:

[0034] Please see Figures 1-9 This invention provides a technical solution: a quick positioning and clamping installation structure for circuit breaker detection, comprising an installation frame 1, wherein two installation frames 1 are provided, and a reinforcing rod 101 is fixedly connected between the two installation frames 1. Clamping seats 3 are slidably connected to both ends of the installation frame 1. A transmission mechanism 5 is slidably connected to the installation frame 1. A pressure rod mechanism 2 is provided above the installation frame 1. The pressure rod mechanism 2 drives multiple clamping seats 3 through the transmission mechanism 5. The transmission mechanism 5 includes a transmission frame 51. A triggering mechanism 6 is provided between the installation frame 1 and the transmission frame 51. A detection probe 7 for detecting circuit breakers is provided on the triggering mechanism 6. The pressure rod mechanism 2 can also drive the triggering mechanism 6.

[0035] In specific implementation: The mounting frame 1 and multiple clamping seats 3 are used to limit the circuit breaker 10. The transmission mechanism 5 is driven by the pressure rod mechanism 2. The transmission mechanism 5 first drives the clamping seats 3 to clamp the circuit breaker 10, and then continues to act on the pressure rod mechanism 2. At this time, the transmission mechanism 5 continues to act on the clamping seats 3, so that the clamping seats 3 are kept in a clamped state. The remaining stroke of the pressure rod mechanism 2 continues to act on the transmission mechanism 5, thereby driving the trigger mechanism 6, so that the detection probe 7 on the trigger mechanism 6 and the wiring terminal 13 on the circuit breaker 10 act together to perform detection. This solves the problem of height alignment between the circuit breaker wiring terminal 13 and the detection probe 7, and enables a single person to complete coarse clamping and fine adjustment at the same time with one hand.

[0036] Please see Figures 1-3 The present invention provides a technical solution: the pressure rod mechanism 2 includes a fixed cylinder 21, an I-beam 9 is fixedly connected between the fixed cylinder 21 and the mounting frame 1, the fixed cylinder 21 and the mounting frame 1 are fixed by the I-beam 9, a transmission rod 24 is slidably connected inside the fixed cylinder 21, a connecting rod 22 is provided outside the fixed cylinder 21, the connecting rod 22 extends into the fixed cylinder 21 and is fixedly connected to the transmission rod 24, and a pressure plate 23 is fixedly connected to one end of the connecting rod 22 located outside the fixed cylinder 21.

[0037] In practice: when in use, pressing the pressure plate 23 will drive the pressure rod mechanism 2.

[0038] Please see Figure 3 The present invention provides a technical solution: a first spring 25 is provided inside the fixed cylinder 21. The first spring 25 is connected to the transmission rod 24. The first spring 25 can connect and reset the transmission rod 24. One end of the transmission rod 24 extends to the outside of the fixed cylinder 21.

[0039] In practice: by pushing the pressure plate 23 downward, the connecting rod 22 is moved, and the connecting rod 22 further drives the transmission rod 24 to overcome the elastic force of the first spring 25, thereby driving the transmission mechanism 5 to move through the transmission rod 24, and then driving the clamping seat 3 and the triggering mechanism 6.

[0040] Please see Figure 5 The present invention provides a technical solution: the two ends of the mounting frame 1 are fixedly connected to slide rails 11, the clamping seat 3 is slidably connected to the slide rails 11, and a second spring 4 is connected between the clamping seat 3 and the mounting frame 1.

[0041] In specific implementation: the slide rail 11 is used to limit the position of the clamping seat 3 so that the clamping seat 3 can always move in a straight line, thereby accurately clamping the circuit breaker; the second spring 4 plays the role of connection and reset.

[0042] Please see Figures 4-5The present invention provides a technical solution: the transmission frame 51 is located above the mounting frame 1, the transmission mechanism 5 further includes an inclined plate 52, the inclined plate 52 is fixedly connected to the lower part of the transmission frame 51, and the surface of the clamping seat 3 is provided with an inclined surface 31 that cooperates with the inclined plate 52.

[0043] In specific implementation: the pressure rod mechanism 2 drives the transmission frame 51 to move, and the inclined plate 52 set on the transmission frame 51 moves synchronously. The inclined plate 52 and the inclined surface 31 on the clamping seat 3 act together, thereby driving the clamping seat 3 to move laterally until the clamping seat 3 and the circuit breaker 10 are clamped.

[0044] Please see Figures 2-4 The present invention provides a technical solution: the clamping seat 3 is further provided with a straight surface 33, the straight surface 33 is connected to the inclined surface 31, and the straight surface 33 cooperates with the transmission frame 51.

[0045] In specific implementation: the straight surface 33 and the clamping seat 3 are set to cooperate. After the inclined plate 52 and the inclined surface 31 are in contact, the straight surface 33 on the transmission frame 51 and the straight surface 33 on the clamping seat 3 are attached, so that the clamping seat 3 will no longer continue to move, and the clamping seat 3 will keep the circuit breaker 10 clamped.

[0046] Please see Figures 7-8 The present invention provides a technical solution: the two sides of the mounting frame 1 are also fixedly connected to limit plates 55, the transmission frame 51 and the limit plates 55 are slidably connected, the limit plates 55 are used to limit the transmission frame 51, thereby ensuring that the movement trajectory of the transmission frame 51 is consistent, so as to accurately act with the clamping seat 3, a connecting rod 53 is fixedly connected on the transmission frame 51, and a synchronization plate 54 is fixedly connected between the connecting rods 53 on the two transmission frames 51, the transmission rod 24 is located above the synchronization plate 54, and the synchronization plate 54 connects the two transmission frames 51 into one, so as to keep consistent during movement.

[0047] Please see Figures 7-8 The triggering mechanism 6 includes a mounting cylinder 63. A fixing rod 8 is fixedly connected to the mounting frame 1. The mounting cylinder 63 is fixedly connected to the fixing rod 8. The mounting cylinder 63 is located below the transmission frame 51. The detection probe 7 is slidably connected inside the mounting cylinder 63. A mounting plate 61 is fixedly connected to the transmission frame 51. A push rod 62 is fixedly connected to the mounting plate 61. The push rod 62 is located above the detection probe 7. The push rod 62 cooperates with the detection probe 7. The upper inner diameter of the mounting cylinder 63 is larger, and the lower inner diameter is smaller and equal to the outer diameter of the detection probe 7. The larger upper part facilitates the installation of the detection probe 7, and the lower inner diameter is the same as that of the detection probe 7, which is used to limit the movement of the detection probe 7 and ensure that the movement trajectory of the detection probe 7 is smooth.

[0048] In specific implementation: When the pressure rod mechanism 2 drives the transmission frame 51 to contact the straight surface 33 on the clamping seat 3, the clamping seat 3 no longer moves, but remains clamped. At this time, the remaining stroke of the pressure rod mechanism 2 drives the triggering mechanism 6 to act, that is, the mounting plate 61 and the push rod 62 on the transmission frame 51 move synchronously, and the push rod 62 moves into the mounting cylinder 63 until the push rod 62 pushes the detection probe 7 to move, so that the detection probe 7 contacts the terminal 13, thereby completing the detection of the circuit breaker 10.

[0049] Please see Figures 7-8 A limiting ring 65 is fixedly connected inside the mounting cylinder 63, and the detection probe 7 is slidably connected to the limiting ring 65. A third spring 64 is provided inside the mounting cylinder 63, and the third spring 64 is sleeved on the outer wall of the detection probe 7.

[0050] In practice: the limiting ring 65 is used to limit the detection probe 7, and the third spring 64 serves to connect and reset the detection probe 7.

[0051] Example 2:

[0052] Please see Figure 4 Based on Embodiment 1, the present invention provides a technical solution in which multiple limiting plates 12 are fixedly connected to the mounting frame 1. The limiting plates 12 are located on the front, rear, left and right sides of the circuit breaker 10, thereby limiting the circuit breaker 10. The surface of the limiting plate 12 is inclined, so that it can contact the circuit breaker 10 of different lengths and widths, thereby limiting the circuit breaker 10. The circuit breaker 10 is arranged below the mounting frame 1. The circuit breaker 10 is located between two clamping seats 3. The limiting plate 12 and the circuit breaker 10 cooperate. The circuit breaker 10 is provided with a wiring terminal 13. The wiring terminal 13 cooperates with the detection probe 7. The clamping seat 3 has a square opening 32 that cooperates with the limiting plate 12.

[0053] In specific implementation: By setting multiple limit plates 12, the circuit breaker 10 can be pre-positioned before testing. The multiple limit plates 12 limit the circuit breaker 10 in front, behind, left and right, thereby ensuring that the wiring terminals 13 on the circuit breaker 10 and the testing probe 7 are in the same vertical position, thus enabling accurate testing.

[0054] The working principle of this invention is as follows:

[0055] Before testing, the circuit breaker 10 to be tested is placed under the mounting frame 1, so that it is locked between multiple limiting plates 12 to complete the pre-positioning. At this time, the two clamping seats 3 are located on the left and right sides of the circuit breaker 10 respectively, and the wiring terminal 13 and the test probe 7 are in the same vertical direction, completing the initial positioning. Then, the pressure plate 23 is pressed down. The pressure plate 23 drives the transmission rod 24 to move downward in the fixed cylinder 21 against the elastic force of the first spring 25 through the connecting rod 22. The transmission rod 24 presses down the synchronous plate 54, driving the synchronous plate 54 and the two transmission frames 51 to move downward together. When the transmission frame 51 moves downward, the inclined plate 52 slides along the inclined surface 31 of the clamping seat 3, pushing the two clamping seats 3 to move along the slide rail 11 towards the direction of the circuit breaker 10. The second spring 4 is stretched until the inclined plate 52 completely slides over the inclined surface 31, and the transmission frame 51 is in contact with the straight surface 33 of the clamping seat 3. At this time, the two clamping seats 3 have clamped and fixed the circuit breaker 10, completing the clamping and positioning.

[0056] Continue pressing down on the pressure plate 23, and the transmission rod 24 continues to drive the transmission frame 51 to move downward. At this time, the straight surfaces 33 are in contact with each other, and the clamping seat 3 no longer moves, maintaining the clamped state. The transmission frame 51 drives the mounting plate 61 and the push rod 62 to move downward together. After the push rod 62 enters the mounting cylinder 63, it presses down on the detection probe 7. The detection probe 7 overcomes the elastic force of the third spring 64 and moves downward along the limit ring 65. Finally, the lower end of the detection probe 7 is in contact with the wiring terminal 13 on the circuit breaker 10, and the detection operation can be carried out.

[0057] After the test is completed, the pressure plate 23 is released, the first spring 25 pushes the transmission rod 24 to reset, the synchronous plate 54 and the transmission frame 51 move upward under the action of elastic force, the push rod 62 no longer squeezes the test probe 7, the third spring 64 pushes the test probe 7 to reset, and then the transmission frame 51 continues to move upward, the tilting plate 52 gradually leaves the tilting surface 31, the second spring 4 pulls the clamping seat 3 to reset along the slide rail 11, and the clamping of the circuit breaker 10 is released, and the tested circuit breaker 10 can be taken out, completing the entire test operation.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quick-positioning clamping mounting structure for circuit breaker testing, comprising mounting frames (1), wherein two mounting frames (1) are provided, and a reinforcing rod (101) is fixedly connected between the two mounting frames (1), characterized in that, The mounting frame (1) is slidably connected to clamping seats (3) at both ends. A transmission mechanism (5) is installed on the mounting frame (1). A pressure rod mechanism (2) is provided above the mounting frame (1). The pressure rod mechanism (2) drives multiple clamping seats (3) to clamp the circuit breaker through the transmission mechanism (5). The transmission mechanism (5) includes a transmission frame (51), and a triggering mechanism (6) is provided between the mounting frame (1) and the transmission frame (51). The triggering mechanism (6) is provided with a detection probe (7) for detecting the circuit breaker. The pressure rod mechanism (2) can also drive the triggering mechanism (6) to detect the circuit breaker.

2. The quick positioning and clamping installation structure for circuit breaker testing according to claim 1, characterized in that: The pressure rod mechanism (2) includes a fixed cylinder (21), which is fixed to the mounting frame (1) by an I-beam (9). A transmission rod (24) is slidably connected inside the fixed cylinder (21). A connecting rod (22) is provided outside the fixed cylinder (21). The connecting rod (22) extends into the fixed cylinder (21) and is fixedly connected to the transmission rod (24). A pressure plate (23) is fixedly connected to one end of the connecting rod (22) outside the fixed cylinder (21).

3. The quick positioning and clamping installation structure for circuit breaker testing according to claim 2, characterized in that: The fixed cylinder (21) is provided with a first spring (25) inside, which is connected to the transmission rod (24). The end of the transmission rod (24) away from the connecting rod (22) extends to the outside of the fixed cylinder (21).

4. The quick positioning and clamping installation structure for circuit breaker testing according to claim 3, characterized in that: The bottom two ends of the mounting frame (1) are fixedly connected to slide rails (11), the clamping seat (3) and the slide rails (11) are slidably connected, and a second spring (4) is connected between the clamping seat (3) and the mounting frame (1).

5. A quick-positioning clamping installation structure for circuit breaker testing according to claim 4, characterized in that: The transmission frame (51) is located above the mounting frame (1) and is slidably connected to the mounting frame (1). The transmission mechanism (5) also includes an inclined plate (52), which is fixedly connected to the lower part of the transmission frame (51). The surface of the clamping seat (3) is provided with an inclined surface (31) that cooperates with the inclined plate (52).

6. The quick positioning and clamping installation structure for circuit breaker testing according to claim 5, characterized in that: The clamping seat (3) is also provided with a straight surface (33), which is connected to the inclined surface (31), and the straight surface (33) cooperates with the transmission frame (51).

7. A quick-positioning clamping installation structure for circuit breaker testing according to claim 6, characterized in that: Limiting plates (55) are fixedly connected to both sides of the mounting frame (1). The transmission frame (51) and the limiting plates (55) are slidably connected. A connecting rod (53) is fixedly connected to the transmission frame (51). A synchronization plate (54) is fixedly connected between the connecting rods (53) on the two transmission frames (51). The transmission rod (24) is located above the synchronization plate (54).

8. A quick-positioning clamping mounting structure for circuit breaker testing according to claim 7, characterized in that: The triggering mechanism (6) includes a mounting cylinder (63), a fixing rod (8) is fixedly connected to the mounting frame (1), the mounting cylinder (63) is fixedly connected to the fixing rod (8), the mounting cylinder (63) is located below the transmission frame (51), the detection probe (7) is slidably connected inside the mounting cylinder (63), the transmission frame (51) is fixedly connected to a mounting plate (61), the mounting plate (61) is fixedly connected to a push rod (62), the push rod (62) is located above the detection probe (7), and the push rod (62) and the detection probe (7) cooperate.

9. A quick-positioning clamping installation structure for circuit breaker testing according to claim 8, characterized in that: A limiting ring (65) is fixedly connected inside the mounting cylinder (63). The detection probe (7) and the limiting ring (65) are slidably connected. A third spring (64) is provided inside the mounting cylinder (63). The third spring (64) is sleeved on the detection probe (7) and located between the mounting cylinder (63) and the limiting ring (65).

10. A quick-positioning clamping mounting structure for circuit breaker testing according to claim 9, characterized in that: Multiple limiting plates (12) are fixedly connected to the mounting frame (1). A circuit breaker (10) is provided below the mounting frame (1). The circuit breaker (10) is located between two clamping seats (3). The limiting plates (12) and the circuit breaker (10) cooperate. A wiring terminal (13) is provided on the circuit breaker (10). The wiring terminal (13) cooperates with the detection probe (7). A square opening (32) that cooperates with the limiting plates (12) is provided on the clamping seat (3).

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